HCL

S E R I E S

Ceramic Encased Wire Wounds

Industrial Applications

HI POWER TYPE

WIRE WOUND RESISTORS

CERAMIC ENCASED TYPE

10 W to 40 W 
Can be supplied with mounting brackets.
Choice of terminals available.

TM

Alloy Wire Wound Element

On Fibre Glass/Ceramic

Substrate

Mechanically Crimped,

Tin / Nickel Plated,

Lug Type Termination

Flame Proof

High Temperature

Ceramic Housing

Inorganic Fire

 Retardant

Encapsulant

Duplex Plated 

Mounting Bracket

Profile

MOUNTING

BRACKET

DIMENSIONS (mm)

HTR

TYPE

POWER
RATING

at 25 C

°

L

+1.5

W

+1

H

+1

P

+1.5

S1
+1

S2

+0.5

S3

+0.5

RESISTANCE

RANGE 

min           max

TYPICAL

WT

PER PC

(gms)

Elevation

(70 C)

CL-10 10W

48.0

9.5

9.5

35.0

No

Mounting Bracket 

A/B

R10

47K

14.5

CL-15 15W

48.0

12.5

12.5

35.0

14.0

12.0

3.0

B

A/B

R10

47K

24.3

CL-20 20W

63.0

12.5

12.5

48.0

14.0

12.0

3.0

B

A/B

R15

56K

29.1

CL-40 40W

90.0

19.0

19.0

71.0

16.5

18.0

3.0

B

A/B

1R0

68K

87.5

°

ELEVATION - B

0.8

AMP 250 Compatible

3

PROFILES

P

H

L

ELEVATION - A

0.8

AMP F 187 Compatible

3

PHYSICAL CONFIGURATION

0.5

O

10

+

10.95 0.5

0.65

6.35+0.3

2.3

0.9

3.17

3.18

 

+0.3-0.1

+

f

1.4 0.3

S

1

W

S

3

f

4.2 (+0.2)

S

2

0.4   

f

1.65+0.2

0.9+0.1

3.1+0.2-0

4.4+0.2-0.1

6.25+0.1

4.75+0.3

9.3+0.2

0.8+0.05

WIRE WOUND RESISTORS

CERAMIC ENCASED TYPE

ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA 

HCL Series has been developed in far east as a direct replacement for old style radial wire wound resistors. As they 
can be provided with fitted mounting brackets they are suitable for use in situations where shock and high 
frequency vibration forces are to be encountered.

HCL Series also offers the following advantages -
a) High degree of insulation; b) Low surface temperature as the bracket itself acts to some extent as a heat sink.

These resistors can also be supplied with a choice of receptacle type terminals which are compatible with AMP 
connector F187 and 250. Please refer ordering information.

TYPICAL APPLICATIONS

TM

H

C

L

120

20

180

260 275

220

140

100

60

100

80

0

40

Ambient Temperature [ C] 

°

Max 155°C

DERATING CURVE

R

a

te

d

 D

is

si

p

a

ti

o

n

 [

%

]

15W/20W

40W

10W

25 C

°

70 C

°

Test                                           

Performance Requirements

Resistance tolerance

+ 10% [K]; + 5% [J]

Rated ambient temperature

10W full power dissipation at 70 C

[See derating curve]

15W to 40W full power dissipation at 25  C

Dielectric withstanding voltage Max 

D

 R + [2% + R05] 

Insulation resistance

>1000 M [minimum]

Temperature co-efficient

+100 ppm/  C [> 100R]
+80 ppm/  C [< 100R]
+450 ppm/  C [< 1R0]

Short time overload

Max 

D

 R + [ 2% + R05]

Moisture resistance

Max 

D

 R + [5% + R05]

Load life

Max 

D

 R < [5% + R05]

Ambient operating

-40 C to +155 C

temperature range.

Flame test

Specifications laid down by
UL Specifications have been met satisfactorily.

°

°

°

°

°

°

°

H

C

L

WIRE WOUND RESISTORS

CERAMIC ENCASED TYPE

ORDERING INFORMATION

TM

15R

HCL

CL-20

J

4.7 / 6.2

B

In case lug required is compatible with Amp 
F187 put down 4.7 after the tolerance and in 
case lug required is compatible with Amp 250 
put down 6.2 after the tolerance.

TOLERANCE

RESISTANCE VALUE

CHOICE OF MOUNTINGS
(a) In case no bracket is required to be left blank.
(b) In the event that bracket is required suffix
the Type with ‘B’ eg. CL-20B

SERIES

HTR TYPE  

Note :

 Due to recent technological advances, the ceramic cases used may be steatite ceramic / corderite ceramic / 

high alumina ceramic depending on the nature of the application. Hence the ceramic cases may be off-white / 
variations of brown and variations of grey; colours which are inherent to these ceramic materials.