Aavid-selection-guide-html.html

AAVID

THERMALLOY

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE

Condensed

HOW TO SELECT A
HEAT SINK

Heat sinks reduce and maintain device
temperature below the maximum
allowable temperature of the device
in its normal operating environment.
In selecting a heat sink to achieve this
goal, four fundamental parameters
must be known about the application:

• The amount of heat, Q, being gener-

ated by the semiconductor device
in watts (W).

• The maximum allowable junction

temperature,Tj, of the device in
degrees Celsius (°C): this informa-
tion is available from the semicon-
ductor manufacturer’s data book
or fact sheet.

• The maximum temperature of the

ambient cooling air,Ta, in °C.

• The type of convection cooling in the

area of the device: is it natural or
forced? If it is forced convection, the
air flow velocity, in linear feet per
minute, must be known.

BASIC FORMULAS:

Heat is a form of energy that flows
from a higher temperature location (i.e.
the semiconductor junction at Tj) to a
lower temperature location (i.e. the
surrounding ambient air at Ta). In semi-
conductor devices, heat will flow from
the device to ultimately the ambient air
through many paths, each of which rep-
resents resistance to the heat flow.This
resistance is called thermal resistance,
denoted as

in °C/W, and is defined as

the ratio between the amount of total
heat being transferred and the temper-
ature difference that drives the heat
flow.The total thermal resistance of a
system for a given device can therefore
be expressed as

where

is the thermal resistance in

degrees C per watt, where the subscript
ja represents junction-to-ambient.
Thermal resistance is a measure of rela-
tive performance: a low thermal resis-
tance represents better performance
than a high thermal resistance. A sys-
tem that has a lower thermal resistance
can either dissipate more heat for a
given temperature difference or dissi-
pate a given amount of heat with a
smaller temperature difference.

In cooling electronic devices, heat sinks
lower the overall junction to ambient
thermal resistance.The actual thermal
path runs through the heat sink when
it is mounted on the device by means
of an attachment mechanism. In this
case, the total thermal resistance,

ja, is

the sum of all the individual resist-
ances which represent the physical
aspect of the thermal path.There are
three thermal resistances that are
commonly used to express the total
resistance: 1) the junction-to-case
resistance,

jc, to account for the ther-

mal path across the internal structure
of the device, 2) the case-to-sink resis-
tance,

cs, which is also called the

interface resistance, to account for the
path across the interface between the
device and the heat sink, and 3) the
sink-to-ambient resistance,

sa, to

account for the thermal path between

Tj –

the base of the heat sink to the ambi-
ent air. It follows that

jc +

cs +

Realistically, a typical thermal designer
has no access to the internal structure
of the device, and can only control two
resistances outside of the device:

and

sa.Therefore, for a device with a

known

jc obtained from the device

manufacturer’s data book, these
become the main design variables in
selecting a heat sink.

Thermal interface between the case
and the heat sink is controlled in a
variety of manners, with different heat
conducting materials.The interface
resistance associated with Aavid stan-
dard interface materials can be found
on pages 8-10 of this catalog. However,
when standard materials are not used,
the following information is useful:The
interface resistance between the case
and heat sink is dependent on three
variables: the thermal resistivity of the
interface material (

, °C/W•inch), the

average material thickness (t, inches)
and the area of the thermal contact
footprint (A, inch

The interface thermal resistance
is then expressed as:

NOTE:The thermal resistivity (

), of

any material, is the reciprocal of its
thermal conductivity (k).Therefore, if
the conductivity is known, its resistivity
can be calculated.The expression is:

when k is in units of

t
r

.°

273

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PC BOARD LEVEL HEAT SINKS, OPTIONS & ACCESSORIES

TYPICAL VALUES FOR
THERMAL RESISTIVITY

(°C/W•INCH):

copper (pure)

0.10

aluminum (1100 series)

0.19

aluminum (5000 series)

0.28

aluminum (6000 series)

0.17

beryllium oxide

0.32

carbon steel

0.84

alumina

1.15

anodized finish

5.60

silicon rubber

81.00

mica

66.00

mylar

236.00

silicone grease

204.00

dead air

1200.00

Once the

cs is calculated, the

required thermal resistance from the
sink to ambient (

sa) is easily calculat-

ed by the following equation:

The above information will allow you
to use the catalog’s performance
graphs in choosing a standard, ready to
use, heat sink to meet your require-
ments.When your heat sink application
requires a custom fabricated extrusion,
the thermal resistance (

sa) of any

profile can be calculated by using the
performance factors shown in table on
page 35.The heat sink’s performance
factor (PF) is determined by its expect-
ed length and air flow conditions.Then,

sa is obtained using the PF and the

extrusion profile’s perimeter.

In conclusion, the lower the thermal
resistance, the better the cooling, and
the larger the overall surface area (or
perimeter), the better the cooling.

Tj –

Ta –(

jc +

cs)

Example

A TO-220 to dissipate 13 watts:

Tj max = 150°C

Ta max = 50°C

jc = 3.0°C/W

Air Velocity = 400 ft/min

Find a suitable heat sink.

Assume the use of a Kon-Dux™ pad
with a torque of 2 in-lb. From Aavid
data for this type of semiconductor, we
know that

cs = 0.5°C/W.

Aavid 504222 has a thermal resistance
of 4.0°C/watt at an air velocity of 400
ft/min and therefore complies with the
requirements.

AAVID

THERMALLOY

Finish (

DIGIT

CODE

DESCRIPTION

Black Anodize

Gold Chromate

Tin Plated

AavGard
Corrosion Protection

Clear Chromate

Clear Anodize

Dielectric Coated
with Tin Plated Tabs

Unfinished

PC Board Mounting (

DIGITS

9, 10)

Tinned Staked on **Tabs™

CODE

PART#

Shur-Lock™ Tab
(.130 for .062” PC Boards)

Vertical triangular
(.093O/.125 L)

Centered horizontal
(.050 W x .130 L)

Centered vertical
(.062 W x .125 L)

Centered vertical
(.062 W x .340 L)

Vertical pair L & R
(.075 W x .170 L)

Vertical pair L & R
(.097 W x .200 L )

Centered vertical
(.095 W x .150 L )

Centered step
(.062 W x .250 L
with .125 wide step)

Centered horizontal
(.032 W x .130 L )

Centered vertical
(.050 W x .340 L )

Centered vertical
(.050 W x .220 L )

**See individual parts for tab code

Device Mounting (

DIGITS

11, 12)

to PCB Semiconductor Mounts

CODE

PART#

DESCRIPTION

n/a

#6-32 female

n/a

#4-40 female

n/a

3mm female

n/a

#6-32 male

n/a

#4-40 male

Kool-Klips™

CODE

PART#

115000

115100

115200

115300

115400

For Rail
Extrusions

TO Case

CODE PART#

DEVICE

SIDES

115500

TO-220

tapered

PC Board Mounting (

DIGITS

9, 10)

Heat Sink to Board Mounting
Tinned Wave-On™ Mounts

CODE STAND-OFF

THREAD

.100”

#6-32

.100”

#4-40

.045”

#4-40

04*

.100”

#6-32

.045”

#6-32

.100”

3.5mm

08*

.100”

3.5mm

.200”

#6-32

Tinned Steel Solder Pins
for Board Mounted Extrusions

.093” dia. x.156” exposed

* .090 PCB (Others .062”)

Device Type (

DIGITS

5, 6)

CODE

DEVICE

Blank

TO-218

TO-220,TO-216,TO-217

TO-3

TO-202

TO-5,TO-39

TO-66

TO-247

Pads (

DIGIT

Interface Heat Sink to Device

CODE

DESCRIPTION

None

One Kon-Dux™ Pad

Two Kon-Dux™Pads

One In-Sil-8™ Pad

Two In-Sil-8™ Pad

One A-Dux™ Pad

Kon-Dux™ is both thermally and
electrically conductive.

In-Sil-8™ and A-Dux™ are thermally
conducting and electrically isolating.

ORDERING INFORMATION

Ordering by Part Number - A twelve digit part number defines Aavid’s standard parts.

To order a part from this catalog, you need to construct a 12 digit ordering code/part number using the following options.

Digits 1 through 4 are the part numbers listed on the catalog pages. Digits 5, and 6, designate the type of device. The 7th digit is
for the finish, the 8th digit is for the interface material, the 9th and 10th digits indicate the type of mounting and the 11th digit
defines the method of attachment to the device.

Many of the parts in the catalog show their most popular options. If you require an option not listed here, contact our

applications engineering group at any of our worldwide offices.

DIGIT #

Ordering

Codes

DESIGNATION

Basic Device

Board

Device

Part #

Type

Finish

Pads

Mounting

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

Interface

Materials

Interface

Materials

Electrically

Conductive

Electrical

Insulation

Thermal

Greases

Thermal

Adhesives

Thin Films

Gap Fillers

Double-Sided

Tapes

Insulating

Elastomeric

Reinforced Pads

Mechanical Aspects of Thermal Materials

• Ther-A-Grip™ 1050
• Ther-A-Grip™ 1070

• Sil-Free™
•Ther-O-Link™

• Ther-O-Bond™
1500
•Ther-O-Bond™
1600 & 2000

• A-Pli™ Series

• In-Sil-8™

• Softface™
• Kon-Dux™
• A-Dux™

A-Dux, when you need thermal conductivity but electrical isolation is important too, A-Dux fits the bill.With the perfor-
mance of a grease, A-Dux has a breakdown voltage of 250 volts/mil of thickness.This material significantly enhances thermal
conductivity between semiconductor packages and heat sinks, and withstands aqueous washing that may occur during the man-
ufacturing process. For faster manufacturing time, have Aavid pre-install A-Dux on your heat sink.

A-Pli Gap Filler, when you need to transfer heat across an irregular opening, the A-Pli series fills the gap.The flexible, elastic
nature of A-Pli allows it to blanket extremely uneven surfaces, either individually or as a group. A-Pli conducts heat away from
the individual components, or an entire PCB, into metal covers, frames, or spreader plates.

The size of the gap that can be filled depends upon the amount of mounting pressure used. Aavid offers a range of A-Pli prod-
ucts with different compression rates to solve your thermal needs.

This low durometer product comes with a slightly tacky surface (A-Pli 200), or a very tacky surface (A-Pli 200S).

There are A-Pli products to meet your requirements when your gap filler needs specific electric properties, too. A-Pli 274 sili-
cone elastomer materials conform to irregular gaps with good thermal conductivity, while providing electrical insulation (A-Pli
274T) or electrical conductivity (A-Pli 274A).

In-Sil-8 Pads, when you need thermal conductance and electrical isolation in one package, In-Sil-8 Pads offer you the best of
both.These silicone-based insulators come with thermally conductive fillers to isolate up to 6000 volts. In-Sil-8 pads withstand
the rigors of assembly, harsh environments, and aging under continuous use.You'll save time with these cost-effective pads too:
installation is 4 times faster than mica and grease, and they won't contaminate solder baths. Order In-Sil-8 Pads with or with-
out pressure-sensitive adhesive, and in standard or custom shapes.

Kon-Dux interface pads are a cost-effective alternative to thermally conductive grease compounds. Aavid pre-applies Kon-Dux
to your heat sink to enhance heat conductance from the semiconductor case and speed your manufacturing process. Kon-Dux
pads are the equivalent of Softface™ for low-volume applications.This material is ideal for use with small, discrete semiconductors.

Sil-Free Grease, when you need to enhance heat transfer between a semiconductor case and a heat sink without the
migration or contamination associated with silicone-based products, Sil-Free Grease offers an easy-to-apply solution.This
metal-oxide filled, synthetic grease reduces dry interface thermal resistance by 50% to 70% with proper application. Sil-Free
will not dry out, harden, melt, or run, even after long-term, continuous exposure to temperatures up to 200° C. Even in
a vacuum atmosphere (24 hours at 5-10 Torr and 100° C), Sil-Free exhibits virtually no "bleed" or evaporation.

Softface™ is a cost-effective alternative to thermally conductive grease compounds. Once applied to a heat sink, Softface™
speeds installation of the semiconductor device. Applied with commercial hot-stamping equipment, Softface™ yields excellent
thermal performance with no need for adhesive. For the best value of any interface material, allow Aavid to pre-apply
Softface™ to your heat sink at any one of its worldwide locations.

THERMAL INTERFACE MATERIALS

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

Ther-O-Bond Adhesives, when you need a thermally conductive adhesive,Ther-O-Bond Adhesives offer excellent heat
transfer and high voltage isolation.Ther-O-Bond 1500 and 1600 series epoxy adhesives offer low shrinkage, and coefficients of
thermal expansion comparable to copper or aluminum.They bond readily to metals, glass, ceramics, and most plastics.Ther-O-
Bond 1500 is ideal for large-scale applications, providing excellent heat transfer with dimensional stability over a wide tempera-
ture range. For smaller applications,Ther-O-Bond 1600 produces a strong, durable, high-impact bond, with good heat transfer
characteristics.

Ther-O-Bond 2000 Acrylic Adhesive cures rapidly at room temperature, while providing a repairable, thermally conductive
bond.

Ther-A-Grip 1050 and 1070, when you need to attach a heat sink to an electrical package, consider Ther-A-Grip double-
sided tape.Ther-A-Grip 1050 uses a thin, Kapton MT-filled, polydimide film coated on both sides with pressure-sensitive, acrylic
adhesive loaded with aluminum oxide for good thermal performance and excellent electrical isolation.Ther-A-Grip 1070 con-
sists of a thin aluminum foil coated with aluminum oxide-filled, acrylic adhesive for electrical conductivity and enhanced thermal
conductivity.

These easy-to-install tapes reduce the need for mechanical fasteners or messy epoxy adhesives.When Aavid pre-installs the
tape on your heat sink, you benefit with faster production time.With low cost and quick assembly combined with reparability,
Ther-A-Grip saves you time and money.

Ther-O-Link is a silicone-based thermal compound that cost effectively enhances the heat transfer between a semiconductor
case and a heat sink. Easy to apply,Ther-O-Link substantially reduces dry interface thermal resistance, while providing long life
under a variety of conditions.

TECHNICAL INFORMATION

Softface™

Thickness:

0.005 inch

(ASTM D374)

Color:

Black

Thermal Conductivity:

3.5 watt/m-°C

(ASTM D5470)

Thermal Impedance:

0.06 °C-in2/watt

(ASTM D5470)

Filler:

Graphite

Volume Resistivity:

10 Ohm-Cm

(ASTM D4496)

Dielectric Constant:

Non-Insulating

Dielectric Strength:

N/A

Storage Life:

1 year (min) @ 25°C

Cleanability:

Water and/or Isopropyl Alcohol (IPA)

Liner:

None

Kon-Dux

Thickness:

0.005 inch

Color:

Black (Metallic)

Thermal Impedance:

0.08 °C-in2/watt

Electrical Resistivity:

15 x 10

-6

Ohms

Compression Strength:

580 psi

for 10% reduction in thickness

Tensile Strength:

650 psi

Ultimate Compression
Strength:

12500 psi

Service Temperature:

-240 to +300 °C

Liner:

None

A-Dux

Color:

Gray

Thickness:

0.004 inch

Thermal Impedance:

0.16 °C-in2/watt

Electrical Resistivity:

1 x 10

-14

Ohm-cm

Tensile Strength:

700 psi

Service Temperature:

-50 to +200 °C

Liner:

Clear Mylar

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

A-Pli Gap Filler

A-Pli 210

A-Pli 220

A-Pli 260

Color:

Pink

Blue

White

Thickness:

0.010 inch

0.020 inch

0.060 inch

Thickness Tolerance:

+/- 0.001 inch

+/- 0.002 inch

+/- 0.010 inch

Filler:

Boron Nitride

Thermal Impedance

.12

.14

.28

(@ 10 psi min.) °C-in2/watt

Thermal Conductivity

6 Watt/(m-C)

8 Watt/(m-C)

10 Watt/(m-C)

Dielectric Strength

2000 Volts

4000 Volts

Density

1.28 g/cc

Hardness (Shore A)

Liner:

Clear Mylar

Ther-A-Grip 1050 and 1070

Ther-A-Grip 1050

Ther-A-Grip 1070

Electrical Function:

Insulating

Conductive

Color:

Beige

White

Thickness:

0.005 inch

0.006 inch

Carrier:

Kapton

Aluminum

Thermal Impedance

0.58°C/watt

0.54°C/watt

Breakdown Voltage

5570 VAC

N/A

Volume Resistivity

3 x 10

Ohm-cm

N/A

UL Flammability

94V-O

Rating

U.L. 94

Lap Shear Adhesion

124 psi

134 psi

Die Shear Adhesion

Aluminum 25°C

130 psi

125 psi

Aluminum 150°C

50 psi

55 psi

Alum. Oxide 25°C

170 psi

145 psi

Alum. Oxide 150°C

50 psi

60 psi

Creep Adhesion

25°C @ 12 psi

> 50 days

150°C @ 12 psi

> 10 days

Ther-A-Grip passes the following Environmental testing:

• High Temperature / Humidity Resistance:

1000 hours @ 66°C, 85% relative humidity

• High Humidity: 1000 hours, 25°C, 95% relative humidity

• Conformal Coating Compatibility

• Heat Aging: 1000 hours, 150°C

• Mechanical Shock

• Potting Compound Compatibility

• Salt Spray

• Solvent Exposure

• Thermal Shock:

-60°C to 150°C for 10 cycles and 100 cycles

• Heat Aging,Vibration @ 25°C,Vibration @ 150°C

• Temperature Cycling: -50°C to 150°C, 1000 cycles

• Long Term Storage

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PC BOARD LEVEL HEAT SINKS, OPTIONS & ACCESSORIES

Sil-Free Grease

Color:

White

Thermal Conductivity:

0.79 watt/(m-C)

Operating Temperature Range:

-40°C to 200°C

Volume Resistivity:

2.3 x 10

Ohm-cm

Dielectric Strength:

225 Volts/mil

Consistency:

Paste

Bleed (% after 24hr @ 200°C):

0.09 max

Specific Gravity

2.8

Shelf Life:

Indefinite (unopened)

Ther-O-Link

Color:

White

Thermal Conductivity:

0.73 watt/(m-K)

Operating Temperature Range:-

-40°C to 200°C

Volume Resistivity:

1.0 x 10

Ohm-cm

Dielectric Strength:

250 Volts/mil

Consistency:

Paste

Bleed (% after 24hr @ 200°C):

0.6 max

Specific Gravity

2.8

Shelf Life:

Indefinite

Ther-O-Bond Adhesives

2000

1599

1600

Color:

White

Black

Blue

Thermal Conductivity watt/(m-C):

0.48

1.26

0.85

C.T.E. (ppm/(C):

Tensile Strength (@25) :

2360 psi

9200 psi

Dielectric Strength (volts/mil):

220

800

500

Shelf Life:

12 months

In-Sil-8 Pads

1896

1897

1898

1899

Color:

Grey

Rust

Grey

Thickness (in):

0.006

0.009

0.007

0.009

Thermal Res. (C/watt)

TO-3

0.40

0.21

0.33

0.50

TO-220

1.40

0.63

1.25

1.50

TO-218

0.93

0.49

0.77

1.16

Breakdown Voltage

6000

5000

4000

5000

Dielectric Constant

5.5

4.5

5.5

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

Part #

Page

533002

534202

534302

551002

563002

566010

569003

573100

573300

573400

574004

574102

574204

574402

574502

574602

574902

575002

575102

576602

576802

577002

577102

577202

577304

577404

577500

578205

578305

Part #

Page

578622

579302

579402

579704

580200

590102

591302

592502

593002

593202

594302

D-PAK, D

, D

1" Morrlong

1.25” Morrison 16
Morrlong/
Morrison Clip

PC BOARD LEVEL
HEAT SINKS, OPTIONS &
ACCESSORIES PART
NUMBER INDEX

Part #

Page

022938

025417

026205

026350

026437

322505

364424

501200

501503

501603

504102

504222

507002

507102

507222

507302

523002

529801

529802

530002

530101

530102

530162

530613

530614

530714

531002

531102

531202

531302

TO-220

Part #

Page

551002

563002

574102

574402

574502

574602

574902

575002

575102

576602

576802

577002

577102

577202

578622

579302

579402

590102

591302

592502

593002

593202

594302

TO-220 and TO-218

530002

533002

TO-220 or TO-218

530101

530102

530162

DIPs and SIPs

Part #

Page

501200

580200

Multiwatt

566010

OptiPin™ for BGAs

364424

Digital

1" Morrlong

1.25” Morrison 16
Clip

025417

026437

Surface Mount

573100

(D-PAK/TO-252)
573300

(D2PAK/TO-263)
573400

(D3PAK/TO-268)

PC BOARD LEVEL
HEAT SINKS PART NUM-
BER INDEX BY SEMICON-
DUCTOR TYPE

TO-3

Part #

Page

501503

501603

569003

TO-5

322505

578205

578305

TO-126

and TO-127

507302

577500

TO-202

574004

574204

577304

577404

579704

TO-218

529801

TO-220

504102

504222

507002

507102

507222

523002

529802

530613

530614

530714

531002

531102

531202

531302

534202

534302

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

†

5These products have been patented by Aavid Thermal

Technologies, Inc.

With Sure-Lock

™

TabsforVert.Mounting.

With Solderable Tabs for Horiz.Mounting.

With Solderable Tab for Vert.Mounting:

577202B00000

0.500

24.4°C/W @2.5W

Ordering
Code:

Height:

574102B00000

0.750

23.2°C/W @2.5W

Ordering
Code:

Height:

574402B03200

0.395

23.2°C/W @2.5W

574402

†

, 574102

†

Ordering
Code:

Height:

592502B03400

1.250

22.0°C/W @2.5W

592502

Ordering
Code:

Height:

576802B04000

0.750

18.8°C/W @2.5W

576802

†

Ordering
Code:

Height:

575102B00000

0.750

16.8°C/W @2.5W

575102

Ordering
Code:

Height:

579302B00000

0.750

16.8°C/W @2.5W

579302

†

Ordering
Code:

Height:

574902B03300

1.375

16.0°C/W @2.5W

Ordering
Code:

Height:

591302B02800

0.790

26.8°C/W @2.8W

591302

†

Ordering
Code:

Height:

530613B00000

0.500

16.7°C/W @4.5W

530613, 530614, 530714

Ordering
Code:

Height:

530614B00000

0.500

16.7°C/W @4.5W

530614

†

Ordering
Code:

Height:

575002B00000

1.180

13.6°C/W @5.0W

575002

Ordering
Code:

Height:

SELF-LOCKING

With Solderable Tab for Vert.Mounting:

577202B04000

With Solderable Tabs for Vert. Mounting

With Solderable Tab for Horiz.Mounting:

576802B03100

507102B00000

.700

15.6ºC/W

507102

Ordering
Code:

Height:

TO-220

With Solderable Tabs for Vert.Mounting.

574602B03300

0.690

21.6°C/W @2.5W

Ordering
Code:

Height:

With Solderable Tab for Vert.Mounting.

MANUAL ATTACHMENT

574502B03300

0.750

21.2°C/W @2.5W

574502

†

, 574602

†

, 574902

†

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

577002B00000

0.250

32.0°C/W @2.5W

577002, 577102, 577202

Ordering
Code:

Height:

577002B04000

577102B00000

0.380

25.9°C/W @2.9W

Ordering
Code:

Height:

With Solderable Tab for Vert.Mounting:

577102B04000

534302B03553

2.000

10.4°C/W @5.0W

534302, 594302

†

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

593202B03500

2.000

10.0°C/W @5.0W

593202

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

530714B00000

0.500

20.3°C/W @3.7W

530714

†

Ordering
Code:

Height:

594302B02853

2.000

8.8°C/W @8.5W

Ordering
Code:

Height:

With Sure-Lock

™

Tabs and Kool-Klip

™

#115330 for Vert.Mounting.

534202B03453

1.180

13.0°C/W @5.0W

534202

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting:

593002B03400

1.180

13.4°C/W @5.0W

593002

Ordering
Code:

Height:

With Sure-Lock

™

Tabs for Vert.Mounting:

593002B02800

1.Thermal resistance has been evaluated in
natural convection, at the power level which
results in a 75°C temperature rise above
ambient.

2. Height (in inches) designation is by refer-
ence to the part size, oriented to the board
in its most common configuration.

AAVID

THERMALLOY

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

†

5These products have been patented by Aavid Thermal

Technologies, Inc.

580200B00000

.410

38ºC/W @0.8W

580200

Ordering
Code:

Height:

507222B00000

0.375

9.6°C/W @5.0W

507222

Ordering
Code:

Height:

TO-220 Continued

507002B00000

0.375

15.6°C/W @5.0W

507002

Ordering
Code:

Height:

563002B00000

1.180

13.0°C/W @5.0W

563002, 576602

Ordering
Code:

Height:

504102B00000

0.850

15.6°C/W @5.0W

504102

Ordering
Code:

Height:

523002B00000

1.180

13.6

523002

Ordering
Code:

Height:

579402B00000

0.750

16.8

579402

Ordering
Code:

Height:

504222B00000

1.450

6.4°C/W @11.8W

504222

Ordering
Code:

Height:

529802B02500

1.500

3.7°C/W @20.0W

529802

Ordering
Code:

Height:

With Solderable Pins for Vert.Mounting.

590102B03600

1.680

10.0°C/W @7.5W

590102

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

551002B00000

0.787

12.4°C/W @5.0W

551002

Ordering
Code:

Height:

578622B03200

1.030

13.2°C/W @2.5W

578622

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

531002B02500

1.000

13.4°C/W @5.6W

531002, 531102, 531202, 531302

Ordering
Code:

Height:

531102B02500

1.500

10.4°C/W @7.2W

531102

Ordering
Code:

Height:

531202B02500

2.000

8.3°C/W @9.0W

531202

Ordering
Code:

Height:

576602B00000

0.950

16.6°C/W @5.0W

576602

Ordering
Code:

Height:

Multiwatt

566010B03400

1.220

11.5°C/W @6.5W

566010

Ordering
Code:

Height:

With Sure-Lock

™

TabsforVert.Mounting:

566010B02800

531302B02500

2.500

8.0°C/W @5.0W

531302

Ordering
Code:

Height:

DUAL MOUNTING

DIPs and SIPs

501200B00000

0.250

62.5°C/W @1.2W

501200

Ordering
Code:

Height:

For 14 or 16 Pin DIPs

TO-5

322505B00000

0.400

56.0°C/W @1.25W

322505

Ordering
Code:

Height:

578205B00000

0.500

38.0

578205, 578305

Ordering
Code:

Height:

578305B00000

0.750

35.0°C/W @1.0W

Ordering
Code:

Height:

†

5These products have been patented by

Aavid Thermal Technologies, Inc.

HIGH PERFORMANCE

AIR VELOCITY (FEET PER

OUNTING SURF

ACE TEMP

SE ABO

VE AMBIENT–(

600

400

200

100

WITH FAN ON

533002B02551

1.000

13.0°C/W @5.0W

533002

†

Ordering
Code:

Height:

With Solderable Pins and Kool-Klip

™

#115100 for Vert.Mounting.

530002B02500

2.500

3.8°C/W @10.0W

530002

†

Ordering
Code:

Height:

AAVID

THERMALLOY

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

†

5These products have been patented by Aavid Thermal

Technologies, Inc.

574204

577500B00000

0.520

26.0°C/W @2.5W

577500

Ordering
Code:

Height:

For TO-126.

TO-202

579704B03300

0.900

24.0°C/W @2.5W

579704

†

Ordering
Code:

Height:

With Solderable Tabs for Vert.Mounting.

574004B00000

0.580

28.0°C/W @2.5W

574004

†

Ordering
Code:

Height:

574204B00000

0.900

16.8

Ordering
Code:

Height:

577404B00000

0.500

24.0°C/W @2.5W

577404

Ordering
Code:

Height:

TO-3

501503B00000

1.000

6.3°C/W @12.0W

501503. 501603

Ordering
Code:

Height:

501603B00000

1.250

5.4°C/W @14.0W

501603

Ordering
Code:

Height:

TO-218

529801B02500

1.500

3.7°C/W @20.0W

529801

Ordering
Code:

Height:

569003B00000

1.310

5.4°C/W @10.0W

569003

Ordering
Code:

Height:

577304B00000

0.375

27.2°C/W @2.5W

577304, 577404

Ordering
Code:

Height:

This condensed catalog

features the more popular

devices and configurations.

For other devices and

configurations, contact Aavid

Applications Engineering

to receive our full

Product Selection Guide.

More information is also

available 24 hours a day by

using our FastFacts System,

603 223-1750, or see our

web-site,

http://www.aavid.com.

530162B00162

1.750

4.4°C/W @17.0W

530162

†

Ordering
Code:

Height:

With Solderable Mounts and Two Kool-Klips

™

#116200 for Vert.Mounting.

for Two TO-220s

TO-220/TO-218

for One TO-218

530101B00150

1.750

6.3°C/W@12.0W

530101

†

Ordering
Code:

Height:

With Solderable Mounts and Kool-Klip

™

#115000 for Vert.Mounting.

530102B00150

1.750

6.3°C/W@12.0W

530102

†

Ordering
Code:

Height:

With Solderable Mounts and Kool-Klip

™

#115000 for Vert.Mounting.

for One TO-220

364424B00032

.450

10.7°C/W

364424

Ordering
Code:

Height:

OptiPin Heat Sinks for

BGA Devices

TO-126 and TO-127

507302B00000

0.375

24.0°C/W @2.5W

507302

Ordering
Code:

Height:

For TO-126 & TO-127.

With preinstalled 1070 tape
364424B00000 without tape

AAVID

THERMALLOY

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks, Options & Accessories

†

5These products have been patented by Aavid Thermal

Technologies, Inc.

D-PAK/T0-252

PAK/T0-263

PAK/T0-268

Bulk
Pkg.:

Surface Mount Components

Hot solder dipped coating
over highly conductive
copper for maximum heat
transfer in surface mount
applications. Tape and reel
packaged per EIA-481,
compatible with automatic
SMT placement. 250 pieces
per reel.

573400D00010

.400

14ºC/W

573300D00010

.400

18ºC/W

573100D00010

.400

26ºC/W

Ordering
Code:

Height:

Ordering
Code:

Height:

Ordering
Code:

Height:

573100D00000

573400D00000

Digital

026205

1.000

3°C/W

1” Morrlong

Ordering
Code:

Height:

026350

1.250

2.7°C/W

1.25” Morrison

Ordering
Code:

Height:

022938

1.250

2.7°C/W

Morrlong/Morrison Clip

Ordering
Code:

Height:

025417

1.250 0.68°C/W

Fan Heat Sinks for Pentium® MMX

Ordering
Code:

Height:

025417

1.250

0.68°C/W

Ordering
Code:

Height:

Fan Heat Sinks for AMD and Cyrix CPU’s

026437

1.200

0.66°C/W

Ordering
Code:

Height:

573100, 573300, 573400

DC-DC Converters

Heat Sink

Call us for our latest offering:
Chris Soule (603) 223-1722
or email soule@aavid.com

AAVID

THERMALLOY

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT

C/W

AIR VELOCITY (FEET PER MINUTE)

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–(

HEAT DISSIPATED (WATTS)

800

1,000

600

400

200

100

1.0

2.0

3.0

4.0

5.0

026205

P OW E R ( w a t t )

A I R F L OW ( f t / m i n )

TEMPERA

TURE

RISE ABO

VE AMBIENT

(

THERMAL RESIST

ANCE C-A (

C/watt)

100

200

400

600

3364424

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT

C/W

AIR VELOCITY (FEET PER MINUTE)

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–(

HEAT DISSIPATED (WATTS)

800

1,000

600

400

200

100

1.0

2.0

3.0

4.0

5.0

026350

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

0.4

0.8

1.2

1.6

2.0

100

▲

501200

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT

C/W

AIR VELOCITY (FEET PER MINUTE)

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–(

HEAT DISSIPATED (WATTS)

800

1,000

600

400

200

100

1.0

2.0

3.0

4.0

5.0

WITH FAN ON

026437

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

501503

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT

C/W

AIR VELOCITY (FEET PER MINUTE)

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–(

HEAT DISSIPATED (WATTS)

800

1,000

600

400

200

100

1.0

2.0

3.0

4.0

5.0

WITH FAN ON

025417

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

0.5

1.0

1.5

2.0

2.5

100

▲

322505

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

504102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

507222

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

504222

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

507302

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

507002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

523002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

501603

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

507102

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

529802

530162

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

530002

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

530613

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

530101

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

530614

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

529801

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

530102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

531002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

533002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

531102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

534202

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

531202

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

534302

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

530714

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

531302

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

563002

0.5

1.0

1.5

2.5

3.0

2.0

400

800

1,200

S M T D

PA K W E B - D E S I G N

TEMPERA

TURE

RISE ABO

VE AMBIENT

(Øca)

P OW E R ( WAT T S )

A I R F L OW ( L F M )

WITH HEAT SINK

WITHOUT HEAT SINK

THERMAL RESIST

ANCE CASE-AMBIENT (C/W)

573300

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

566010

566010

0.5

1.0

1.5

2.5

3.0

2.0

100

450

800

THERMAL RESIST

ANCE CASE-AMBIENT (C/W)

TEMPERA

TURE

RISE ABO

VE AMBIENT

(Øca)

S M T D

PA K W E B - D E S I G N

P OW E R ( WAT T S )

A I R F L OW ( L F M )

WITH HEAT SINK

WITHOUT HEAT SINK

THERMAL RESIST

ANCE CASE-AMBIENT (C/W)

TEMPERA

TURE

RISE ABO

VE AMBIENT

(Øca)

S M T D

PA K W E B - D E S I G N

P OW E R ( WAT T S )

A I R F L OW ( L F M )

WITHOUT HEAT SINK

THERMAL RESIST

ANCE CASE-AMBIENT (C/W)

P OW E R ( WAT T S )

WITHOUT HEAT SINK

573400

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

569003

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574004

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

551002

160

200

0.5

1.0

1.5

2.5

3.0

2.0

400

120

800

THERMAL RESIST

ANCE CASE-AMBIENT (C/W)

TEMPERA

TURE

RISE ABO

VE AMBIENT

(Øca)

S M T D PA K W E B - D E S I G N

P OW E R ( WAT T S )

A I R F L OW ( L F M )

WITH HEAT SINK

WITHOUT HEAT SINK

573100

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574204

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574902

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574402

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

575002

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

574502

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

575102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

574602

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

591302

576802

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

577304

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

577002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

577404

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

577102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

577500

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

576602

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

577202

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

0.4

0.8

1.2

1.6

2.0

100

▲

578305

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

579704

600

579704

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

578622

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

0.4

0.8

1.2

1.6

2.0

100

▲

580200

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

579302

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

590102

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

0.4

0.8

1.2

1.6

2.0

100

▲

578205

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

▲

579402

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

143 North Main Street • Suite 206 • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

PC Board Level Heat Sinks,Thermal Information

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

592502

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

594302

594302

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

593002

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

591302

591302

▲

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT–

C/W

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT–

200

400

600

800

1000

AIR VELOCITY–FEET PER MINUTE

HEAT DISSIPATED–WATTS

100

593202

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

Part #

Page

61790

61915

62000

62030

62035

62200

62230

62335

62365

62375

62470

62500

62560

62580

62625

62645

62650

62725

62745

62805

62905

62925

62930

63020

63045

63130

63340

63380

63400

63455

63485

63620

63730

63815

63985

64635

64675

Part #

Page

64690

65175

65185

65245

65335

65340

65345

65445

65525

65550

65555

65605

65615

65795

65990

65995

66000

66385

66450

66505

67690

67895

68855

68995

70560

71275

71390

72070

72205

72385

72545

EXTRUSION INDEX

Part #

Page

60055

60080

60095

60130

60140

60180

60215

60230

60235

60250

60340

60520

60560

60585

60630

60760

60815

60825

60865

60955

60985

60995

61055

61070

61075

61080

61085

61090

61095

61155

61215

61315

61325

61585

61605

61745

61785

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

.640

(16.26)

.640

(16.26)

.136

(3.45)

.120

(3.05)

.400

(10.16)

62470

0.3lb/ft
12.0°C/W/3in
5.6 in

/in

.950

(24.13)

.170

(4.32)

.935

(23.75)

.765

(19.43)

64675

0.5lb/ft
7.1°C/W/3in
9.9 in

/in

1.250

(31.75)

1.000

(25.40)

.250

(6.35)

62560

0.6lb/ft
6.7°C/W/3in
10.5 in

/in

.750

(19.05)

1.060

(26.92)

.125

(3.18)

63400

0.4lb/ft
8.1°C/W/3in
8.6 in

/in

.800

(20.32)

1.060

(26.92)

.250

(6.35)

62930

0.6lb/ft
8.8°C/W/3in
7.9 in

/in

.280

(7.11)

1.187

30.15)

.050

(1.27)

63455

0.2lb/ft
11.4°C/W3/in
6.2 in

/in

.370

(9.40)

1.180

(29.97)

.085

(2.16)

63045

0.4lb/ft
8.6°C/W3/in
8.2 in

/in

.580

(14.73)

1.250

(31.75)

.156

(3.96)

62035

0.5lb/ft
8.0°C/W3/in
8.8 in

/in

1.650

(41.91)

1.260

(32.00)

.325

(8.26)

65245

1.3lb/ft
4.4°C/W3/in
15.9 in

/in

1.375

(34.93)

.500

(12.70)

.062

(1.57)

1.000

(25.40)

.625

(15.88)

.065

(1.65)

60130

0.4lb/ft
9.2°C/W/3in
7.6 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

.400

(10.16)

.530

(13.46)

.040

(1.02)

62000

0.2lb/ft
14.6°C/W/3in
4.8 in

/in

.460

(11.68)

1.150

(29.21)

.110

(2.79)

.470

(11.94)

62365

0.3lb/ft
10.5°C/W/3in
6.8 in

/in

.450

(11.43)

1.060

(26.92)

.130

(3.30)

62925

0.3lb/ft
12.5°C/W/3in
5.6 in

/in

1.300

(33.02)

1.150

(29.21)

.350

(8.89)

62230

0.8lb/ft
5.1°C/W3/in
13.7 in

/in

63620

0.4lb/ft
9.2°C/W/3in
7.6 in

/in

61605

1.3lb/ft
5.4°C/W/3in
13.0 in

/in

Performance vs. Length
The thermal resistance of a heat sink changes significantly with length. For example, to convert the published natural con-
vection thermal resistance at a 3” length to a desired length, see page 35 for a length conversion table.

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

.900

(22.86)

1.400

(35.56)

.090

(2.29)

.840

(21.34)

63380

3.5lb/ft
9.5°C/W/3in
7.8 in

/in

.750

(19.05)

1.560

(39.62)

.125

(3.18)

61080

0.5lb/ft
5.7°C/W/3in
12.1 in

/in

1.630

(41.40)

.295

(7.49)

1.290

(32.77)

61215

1.3lb/ft
4.4°C/W/3in
15.9 in

/in

63485

0.8lb/ft
4.5°C/W/3in
15.4 in

/in

1.650

(41.91)

1.000

(25.40)

.062

(1.57)

.660

(16.76)

63130

0.6lb/ft
5.2°C/W/3in
13.4 in

/in

1.380

(35.05)

2.260

(57.40)

.190

(4.83)

1.150

(29.21)

61325

1.0lb/ft
4.8°C/W/3in
14.5 in

/in

.810

(20.57)

2.250

(57.15)

.180

(4.57)

64690

1.2lb/ft
3.7°C/W/3in
18.7 in

/in

1.500

(38.1)

2.310

(58.67)

.156

(3.96)

62500

1.4lb/ft
3.0°C/W/3in
23.7 in

/in

65550

0.9lb/ft
4.1°C/W/3in
17.2 in

/in

65795

0.9lb/ft
4.3°C/W/3in
16.2 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

66450

0.5lb/ft
6.3°C/W/3in
11.2 in

/in

1.250

(31.75)

1.920

(48.77)

.250

(6.35)

62745

1.1lb/ft
3.8°C/W/3in
18.3 in

/in

2.250

(57.15)

1.750

(44.45)

.188

(4.78)

1.250

(31.75)

60180

2.1lb/ft
2.3°C/W/3in
27.5 in

/in

.643

(16.33)

1.846

(47.35)

.150

(3.81)

64635

0.7lb/ft
4.4°C/W/3in
15.8 in

/in

66000

0.7lb/ft
6.3°C/W/3in
11.1 in

/in

66385

0.6lb/ft
6.4°C/W/3in
10.9 in

/in

Temperature Rise Factor
The published thermal resistance assumes a 75°C temperature rise of the heat sink above the ambient temperature.

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

.500

(12.7)

2.509

(63.7)

.110

(2.8)

71275

.71lb/ft
4.0°C/W/3in
17.6 in

/in

.094

(2.39)

2.682

(68.12)

.400

(10.16)

60955

0.6lb/ft
5.7°C/W/3in
12.3 in

/in

.687

(17.45)

2.687

(68.25)

.125

(3.18)

1.297

(32.94)

60865

0.5lb/ft
5.1°C/W/3in
13.6 in

/in

1.375

(34.93)

.625

(15.88)

2.815

(71.50)

.109

(2.77)

60235

0.8lb/ft
4.8°C/W/3in
14.4 in

/in

.280

(7.112)

2.996
(76.1)

2.250

(57.15)

63730

2.8lb/ft
1.8°C/W/3in
38.1 in

/in

1.250

(31.75)

1.400

(35.56)

3.436

(87.27)

.200

(5.08)

61055

1.9lb/ft
2.5°C/W/3in
26.5 in

/in

.190

(4.83)

3.250

(82.55)

1.000

(25.40)

60760

1.6lb/ft
3.1°C/W/3in
22.7 in

/in

.295

(7.49)

3.450

(87.63)

1.290

(32.77)

60250

2.1lb/ft
2.4°C/W/3in
28.5 in

/in

.200

(5.08)

3.500

(88.90)

.850

(21.59)

62200

1.5lb/ft
3.0°C/W/3in
23.0 in

/in

3.520

(89.4)

3.000

(76.2)

.260

(6.6)

.150

(3.8)

.090

(2.3)

TYP 2

.260

(6.6)

TYP 7

70560

5.3lb/ft
1.1°C/W/3in
63.0 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

.680

(17.27)

2.440

(61.98)

.120

(3.05)

1.300

(33.02)

.185

(4.70)

60985

0.8lb/ft
6.1°C/W/3in
11.5 in

/in

.312

(7.92)

3.120

(79.25)

1.250

(31.75)

61315

2.3lb/ft
2.7°C/W/3in
25.6 in

/in

2.000

(50.80)

2.996

(76.10)

.280

(7.11)

63020

2.3lb/ft
1.9°C/W/3in
34.1 in

/in

3.008

(76.4)

1.020

(25.9)

.120

(3.0)

72070

1.3lb/ft
1.4°C/W/3in
50.5 in

/in

2.705

(68.71)

3.520

(89.41)

.275

(6.99)

.900

(22.86)

62580

3.1lb/ft
1.5°C/W/3in
46.5 in

/in

.399

(10.13)

3.650

(92.71)

.080

(2.03)

62650

0.9lb/ft
3.4°C/W/3in
20.9 in

/in

Optimization
Optimization in either forced or natural convection can result in cost and size reduction of the heat sink. In forced
convection, optimization can reduce the size of the fan or blower.

1.281

(32.54)

3.900

(99.06)

.150

(3.81)

1.312

(33.32)

60630

1.8lb/ft
2.3°C/W/3in
30.0 in

/in

.300

(7.62)

4.000

(101.60)

.060

(1.52)

61585

0.7lb/ft
3.3°C/W/3in
21.1 in

/in

60095

3.5lb/ft
1.8°C/W/3in
38.8 in

/in

1.312

(33.32)

4.125

(104.78)

.312

(7.92)

61090

3.0lb/ft
2.0°C/W/3in
36.9 in

/in

1.000

(25.40)

4.125

(104.78)

.187

(4.75)

1.335

(33.91)

60080

1.2lb/ft
2.9°C/W/3in
23.6 in

/in

1.000

(25.4)

4.550

(115.6)

.200

(5.1)

72205

2.5lb/ft
1.7°C/W/3in
42.3 in

/in

1.400

(35.56)

4.500

(114.30)

.200

(5.08)

61075

2.4lb/ft
1.7°C/W/3in
38.2 in

/in

.750

(19.05)

4.562

(115.87)

.125

(3.18)

60585

1.7lb/ft
2.2°C/W/3in
32.0 in

/in

65185

1.7lb/ft
2.0°C/W/3in
34.3 in

/in

65555

1.7lb/ft
2.1°C/W/3in
33.5 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

2.000

(50.80)

3.850

(97.79)

.250

(6.35)

60825

2.9lb/ft
2.3°C/W/3in
30.0 in

/in

1.290

(32.77)

4.375

(111.13)

.295

(7.49)

60560

2.7lb/ft
1.8°C/W/3in
36.5 in

/in

.750

(19.05)

4.125

(104.78)

.250

(6.35)

63985

1.7lb/ft
3.1°C/W/3in
22.3 in

/in

66505

1.6lb/ft
2.7°C/W/3in
25.9 in

/in

4.600

(116.84)

.720

(18.29)

.200

(5.08)

.145

(3.68)

65990

1.6lb/ft
2.2°C/W/3in
31.2 in

/in

65995

1.3lb/ft
3.3°C/W/3in
21.3 in

/in

Technical Capabilities
Aavid Thermalloy Application Engineering Department has the capability to perform a full thermal analysis,
including optimization, in order to find the right Aavid heat sink for your application.

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks Extrusions

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks Extrusions

60055

2.5lb/ft
1.5°C/W/3in
48.1 in

/in

4.921

(125.00)

5.374

(136.50)

4.331

(110.01)

3.150

(80.01)

.295

(7.49)

62375

12.8lb/ft
0.8°C/W/3in
91.3 in

/in

4.921

(124.99)

5.315

(135.00)

4.331

(110.01)

3.150

(80.01)

4.528

(115.01)

62905

11.1lb/ft
0.8°C/W/3in
91.2 in

/in

1.250

(31.75)

4.990

(126.75)

.250

(6.35)

61745

2.4lb/ft
2.0°C/W/3in
34.5 in

/in

.490

(12.45)

5.000

(127.00)

.120

(3.05)

67895

1.4lb/ft
2.4°C/W/3in
29.3 in

/in

1.312

(33.32)

5.561

(141.25)

.312

(7.92)

60215

4.2lb/ft
1.6°C/W/3in
43.6 in

/in

1.312

(33.32)

5.375

(136.53)

.312

(7.92)

61085

3.6lb/ft
1.5°C/W/3in
46.1 in

/in

6.000

(152.4)

1.312
(33.3)

.312
(7.9)

68995

3.6lb/ft
1.4°C/W/3in
49.7 in

/in

1.600

6.000

(152.4)

1.600
(40.6)

.300

(7.6)

72385

4.8lb/ft
1.1°C/W/3in
61.8 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

65175

1.1lb/ft
3.9°C/W/3in
18.1 in

/in

2.120

(53.85)

5.100

129.54)

.500

(12.70)

.180

(4.57)

63815

3.9lb/ft
1.7°C/W/3in
41.7 in

/in

4.730

(120.14)

.187

(4.75)

.687

(17.45)

.062

(1.57)

.545

(13.84)

.520

(13.21)

.031 RAD
(.79)

TYP 10

TYP 2

TYP 7

TYP 18

61095

1.7lb/ft
3.5°C/W/3in
19.8 in

/in

1.750

(44.45)

6.080

(154.43)

.250

(6.35)

60140

4.1lb/ft
1.4°C/W/3in
50.3 in

/in

1.312

(33.32)

6.437

(163.50)

.312

(7.92)

60340

3.2lb/ft
1.2°C/W/3in
55.5 in

/in

Fabrication Capabilities Aavid has extensive manufacturing capabilities for the complete fabrication of heat sinks for
extrusions. The Aavid plant is equipped with high speed saws, a battery of CNC machining centers, and an automated
anodizing line incorporating the latest technology available in the world.

.687

(17.45)

5.750

(146.05)

.187

(4.75)

61790

1.7lb/ft
2.9°C/W/3in
23.9 in

/in

1.250

(31.75)

5.886

(149.50)

.250

(6.35)

60230

2.9lb/ft
1.8°C/W/3in
40.0 in

/in

1.185

(30.10)

6.750

(171.45)

.125

(3.18)

60995

2.5lb/ft
1.4°C/W/3in
50.1 in

/in

65605

9.3lb/ft
0.7°C/W/3in
97.9 in

/in

2.390

(60.71)

7.200

(182.88)

.060

(1.52)

5.200

(132.08)

.270

(6.86)

62625

4.7lb/ft
0.9°C/W/3in
78.2 in

/in

.460

(11.68)

7.201

(182.91)

.080
2.03

.383

(9.73)

68855

1.7lb/ft
1.5°C/W/3in
46.3 in

/in

1.312

(33.32)

7.340

(186.44)

.312

(7.92)

65445

4.8lb/ft
1.1°C/W/3in
62.6 in

/in

65345

9.0lb/ft
0.8°C/W/3in
86.3 in

/in

2.000

(50.80)

8.350

(212.09)

.250

(6.35)

60815

6.0lb/ft
1.2°C/W/3in
56.8 in

/in

1.400
(35.6)

8.500

(215.9)

.913

(23.2)

.500

(12.7)

6.600

(167.6)

71390

6.78lb/ft
1.2°C/W/3in
58.1 in

/in

65615

9.0lb/ft
0.7°C/W/3in
104.5 in

/in

1.400

(35.56)

9.400

(238.76)

.500

(12.70)

6.600

(167.64)

65335

7.3lb/ft
1.2°C/W/3in
59.7 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

1.600

(40.64)

6.500

(165.1)

.200

(5.08)

61070

3.4lb/ft
1.3°C/W/3in
56.0 in

/in

.575

(14.61)

8.034

(204.06)

.275

(6.99)

62805

3.1lb/ft
2.2°C/W/3in
32.2 in

/in

.875

(22.23)

7.340

(186.44)

.190

(4.83)

61915

2.9lb/ft
1.5°C/W/3in
47.9 in

/in

67690

6.6lb/ft
0.5°C/W/3in
129.6 in

/in

2.280

(57.91)

9.750

(247.65)

.280

(7.11)

62725

7.1lb/ft
0.7°C/W/3in
100.1 in

/in

1.312

(33.32)

9.870

(250.70)

.312

(7.92)

1.200

(30.48)

.200

(5.08)

62030

5.6lb/ft
1.0°C/W/3in
66.9 in

/in

Electronic Enclosures
Multi-function extruded electronic enclosures improve product appearance, reduce packaging costs, and extend electronic
system life. For more information, contact Aavid to request the Technical Design Guide for Electronic Enclosures.

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCT SELECTION GUIDE, Condensed

Heat Sinks for Extrusions

65525

8.1lb/ft
0.6°C/W/3in
108.9 in

/in

3.770

(95.76)

10.780

(273.81)

.620

(15.75)

61785

16.4lb/ft
0.8°C/W/3in
92.1 in

/in

2.300

(58.42)

11.000

(279.40)

.315

(8.00)

65340

11.8lb/ft
0.6°C/W/3in
110.4 in

/in

1.000

(25.40)

12.250

(311.15)

.250

(6.35)

61155

7.0lb/ft
1.0°C/W/3in
73.0 in

/in

1.312

(33.32)

17.000

(431.80)

.312

(7.92)

63340

10.4lb/ft
0.5°C/W/3in
136.6 in

/in

14.750
(374.7)

.250
(6.4)

2.750
(69.9)

.250
(6.4)

72545

11.9lb/ft
0.5°C/W/3in
144.8 in

/in

1.312

(33.32)

19.000

(482.60)

.312

(7.92)

62335

11.6lb/ft
0.4°C/W/3in
160.6 in

/in

Note: The profiles are not to scale in relation to each other. Standard commercial extrusion tolerances apply (see our full line catalog, page 96).
Dimension in parenthesis are millimeters.

1.312

(33.32)

9.875

(250.83)

.312

(7.92)

60520

6.7lb/ft
0.9°C/W/3in
80.4 in

/in

1.000

(25.40)

13.680

(347.47)

.250

(6.35)

.682

(17.32)

62645

8.7lb/ft
0.9°C/W/3in
75.9 in

/in

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCTION SELECTION GUIDE, Condensed

Extrusion Thermal Information

HOW TO USE PUBLISHED DATA FOR
EXTRUSION PROFILES

Each extrusion profile is described in a separate box along
with its part number, dimensions, surface area (in

/in), weight

per foot of extrusion (lb/ft), and natural convection thermal
resistance for a three inch length of extrusion (°C/W/3”).

60270

The extrusion’s five digit base part number is listed
in the left hand corner.

/in

The perimeter of the cross-sectional profile of the extrusion
is also the outside surface area per inch of length (in

/in).The

perimeter is used to predict the thermal resistance (

sa) in

the forced convection applications.The performance factor
table on page 35 provides thermal resistance of an extrusion
using two variables; air velocity and extrusion length.

EXAMPLE: Extrusion #65810 has a perimeter of
26.2 in

/in and will be cut to 4.0” long.The air flow is 600

LFM.Therefore, the performance factor is 18.70 (from the
table using 600 LFM and 4.0”) and its

sa is 0.71 °C/W

(18.70/26.2)

lb/ft

The weight of the extrusion in pounds per foot (lb/ft) is used
as a relative indicator of extrusion cost when considering dif-
ferent extrusions for a particular application.This figure may
also be used to calculate the cross-sectional surface area (in

)

of an extrusion.

Area (cross-section) = 1.18 x lb/ft

°C/W/3”

The theoretical thermal resistance (°C/W) for a three inch
section of extrusion in natural convection is a calculated fig-
ure derived from surface area per inch of length (in

/in), a

sink-to-ambient temperature difference of 75°C, a black
anodize finish, and a single point heat source mounted at the
center of the three inch section (the length axis of the extru-
sion is vertical with respect to gravity).

TEMPERATURE CORRECTION
CONSIDERATIONS

Since natural convection heat sink efficiency degrades with
decreasing sink-to-ambient temperature differential, a cor-
rection factor must be applied to the published data if an
application requires a sink-to-ambient temperature rise of
less than 75°C.The corrected thermal resistance is obtained
by multiplying published °C/W/3” data by the appropriate
factor from the following table:

Temperature Rise (

∆

Tsa) Correction Factor

75°C

1.000

70°C

1.017

60°C

1.057

50°C

1.106

40°C

1.170

30°C

1.257

For any extrusion profile in natural convection, the thermal
resistance (°C/W) is more than 25% higher at

∆

Tsa = 30°C

than at

∆

Tsa = 75°C.

LENGTH CORRECTION CONSIDERATIONS

The published extrusion data shows natural convection per-
formance for a three inch section with a centrally located
point source heat load. Because the heat load is assumed to
be at a point rather than uniformly distributed, thermal resis-
tance does not change linearly with length. (The ends of a
very long extrusion would be cooler than the center and
therefore the transfer of heat to the surrounding air is little,
if any.) It is therefore necessary to apply a correction factor
to published data for extrusion lengths shorter or longer
than three inches.The corrected thermal resistance for dif-
ferent lengths
of extrusion is obtained by multiplying published °C/W/3”
data by the appropriate factor from the following table: (see
next page)

.120

.400

.256

1.125

.055

60270

4.7 in

/in

0.2 lb/ft
14.9°C/W/3in

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCTION SELECTION GUIDE, Condensed

Extrusion Thermal Information

Length of Heat Sink

Correction Factor

1.0”

1.80

2.0”

1.25

3.0”

1.00

4.0”

0.87

5.0”

0.78

6.0”

0.73

7.0”

0.67

8.0”

0.64

9.0”

0.60

10.0”

0.58

11.0”

0.56

12.0”

0.54

13.0”

0.52

14.0”

0.51

15.0”

0.50

This table may also be used to determine the appropriate
length of a preferred extrusion required to obtain a desired
thermal resistance. Merely divide the desired thermal resis-
tance by the published thermal resistance for a three inch
section to obtain a correction factor.

EXAMPLE: Extrusion 62465 has a thermal resistance of 8.0
°C/W/3 inch. A five inch piece will have a thermal resistance
of 6.24°C/W, using the appropriate length correction factor
of 0.78 [i.e. 8.0°C/W x 0.78 = 6.24°C/W].

Since the thermal resistance of 6.24°C/W is at a tempera-
ture rise of 75°C, the resistance of the heat sink at a temper-
ature rise of 50°C will be increased by the temperature cor-
rection factor of 1.106.There-fore the new natural convec-
tion thermal resistance is now 6.90°C/W [6.24°C/W x 1.106
= 6.90°C/W].

PERFORMANCE FACTOR TABLE

Extrusion

Natural

Forced Convection,Air Velocity (Ft/Min)

Length (In.)

Convection

100

200

300

400

500

600

700

800

900

1000

1100

1200

0.25

242.20

183.33 129.63 105.84

91.66

81.98

74.84

69.29

64.81

61.11 57.97

55.27

52.92

0.50

171.27

129.63

91.66

74.84

64.81

57.97

52.92

48.99

45.83

43.21 40.99

39.08

37.42

1.00

121.10

91.61

64.77

52.89

45.80

40.96

37.40

34.62

32.38

30.53 28.97

27.62

26.44

2.00

85.63

64.89

45.88

37.46

32.44

29.02

26.49

24.52

22.94

21.63 20.52

19.56

18.73

3.00

69.92

52.88

37.39

30.53 26.44

23.64

21.58

19.98

18.69

17.62 16.72

15.94 15.26

4.00

60.55

45.81

32.39

26.45 22.90

20.49

18.70

17.31

16.19

15.27 14.48

13.81 13.22

5.00

54.16

40.99

28.98

23.66 20.49

18.33

16.73

15.49

14.49

13.66 12.96

12.36 11.83

6.00

49.44

37.39

26.44

21.58 18.69

16.72

15.26

14.13

13.22

12.46 11.82

11.27 10.79

7.00

45.77

34.61

24.47

19.98 17.30

15.48

14.13

13.08

12.23

11.53 10.94

10.43

9.99

8.00

42.82

32.39

22.90

18.70 16.19

14.48

13.22

12.24

11.45

10.79 10.24

9.76

9.35

9.00

40.37

30.53

21.58

17.62 15.26

13.65

12.46

11.53

10.79

10.17

9.65

9.20

8.81

10.00

38.30

28.97

20.48

16.72 14.48

12.95

11.82

10.94

10.24

9.65

9.16

8.73

8.36

11.00

36.51

27.62

19.53

15.95 13.81

12.35

11.27

10.44

9.76

9.20

8.73

8.32

7.97

12.00

34.96

26.44

18.69

15.26 13.22

11.82

10.79

9.99

9.34

8.81

8.36

7.97

7.63

13.00

33.59

25.40

17.96

14.66 12.70

11.36

10.37

9.60

8.98

8.46

8.03

7.66

7.33

14.00

32.37

24.48

17.31

14.13 12.24

10.95

9.99

9.25

8.65

8.16

7.74

7.38

7.06

NOTE: For lengths and flow velocities not shown above, the equation

may be used.

P.F.

√

916

——

V•L

Corporate Office: 80 Commercial Street • Concord, NH 03301

Tel. (603) 224-9988 • Fax (603) 223-1790

AAVID

THERMALLOY

PRODUCTION SELECTION GUIDE, Condensed

Extrusion Thermal Information

READING A THERMAL
PERFORMANCE GRAPH

The performance graphs in the catalog are actually a com-
posite of two separate graphs which, as shown below, have
been combined to save space on the page.The small arrows
on each curve indicate to which axes the curve corresponds.
Thermal graphs are published assuming the device to be
cooled is properly mounted and the heat sink is in its nor-
mally used mounting position.

GRAPH A is used to show heat sink performance when
used in a natural convection environment (i.e. without forced
air).This graph starts in the lower left hand corner with the
horizontal axis representing the heat dissipation (watts) and
the vertical left hand axis representing the rise in heat sink
mounting surface temperature above ambient (°C). By know-
ing the power to be dissipated, the temperature rise of the
mounting surface can be predicted.Thermal resistance, in
natural convection, is determined by dividing this tempera-
ture rise by the power input (°C/W).

GRAPH B is used to show heat sink performance when
used in a forced convection environment (i.e. with forced air
flow through the heat sink).This graph has its origin in the
top right hand corner with the horizontal axis (top) repre-
senting air velocity over the heat sink (LFM) and the vertical
right hand axis representing the thermal resistance of the
heat sink (°C/W). Air velocity is calculated by dividing the
output volumetric flow rate of the fan by the cross- sectional
area of the outflow air passage.

THERMAL RESIST

ANCE FROM MTG

SURF

ACE T

AMBIENT –

C/W

A I R V E L O C I T Y – F E E T P E R M I N U T E

600

200

400

800

1000

MOUNTING SURF

ACE TEMP

RISE ABO

VE AMBIENT

–

H E AT D I S S I PAT E D – WAT T S

100

Velocity (LFM) =

Volume (CFM)

area (ft

)

Although most fans are normally rated and compared at
their free air delivery at zero back pressure, this is rarely the
case in most applications. For accuracy, the volume of output
must be derated by 60% to 80% for the anticipation of back
pressure.

EXAMPLE: The output air volume of a fan is given as 80
CFM.The output area is 6 inches by 6 inches or
36 in

or .25 ft

To find velocity:

velocity = 80 = 320

0.25

Velocity is 320 LFM, which at 80%, derates to 256 LFM.

EXAMPLE A: Aavid part number 579802 (see page 51) is to
be used to dissipate 3 watts of power in natural convection.
Because we are dealing with natural convection, we refer to
the “A” part of the graph. Knowing that 3 watts are to be
dissipated, follow the grid line to the curve and find that at 3
watts there is a temperature rise of 75°C.To get the thermal
resistance, divide the temperature rise by the power dissipat-
ed, which yields 25°C/W.

EXAMPLE B: For the same application we add a fan which
blows air over the sink at a velocity of 400 LFM.

The addition of a fan means that we are dealing with forced
convection and therefore we refer to the “B” part of the
graph. Knowing the air flow, the thermal resistance is taken
from the graph.This resistance of 8.75°C/W is then multi-
plied by the power to be dissipated, 3 watts.This yields a
temperature rise of 26.25°C.

The difference between the natural convection cooling and
the forced air cooling at 400 feet/minute can be seen by
comparing the thermal resistance of the heat sink in these
environments, 25°C/W vs. 8.75°C/W respectively.

DESIGN ASSISTANCE

Aavid Thermal Technologies can assist in the design
of heat sinks for both forced and natural convection applica-
tions. Aavid’s technical staff can help in the selection of an
existing “near” optimum extrusion from over 3,000 shapes
that have been previously designed and tooled by Aavid
Thermal Technologies or can design a new extrusion which
best meets the requirements of the application.

Any thermal application needing an extruded heat sink
should be thermally defined as explicitly as possible before
an extrusion is selected or designed.