FUSES
/ SICHERUNGEN
PFMD
Resettable fuses
www.schurter.com
13
Surface Mount
PTC-Fuses
Type PFMD
3,4 x 4,7 mm
fast tripping
Packaged per EIA 481-1
Agency recognition:
UL, CSA, TÜV
Typical Time to Trip at 23 ˚C
Dimensions
/ Abmessungen
Solder pad layouts
50 75 100
A
C
B
D
Applications
• Hard disk drives
• PC motherboards
• PC peripherals
• Point-of-sale (POS)
equipment
• PCMCIA cards
• General Electronics
Typical Part Marking
Layout may vary
Manufacturer’s
Trademark
Part identification
Date code week 1 of 2000 = 0A (year and week)
week 27 of 2000 = A0 (week and year)
Test Procedures And Requirements For Model PFMD Series
Test
/ Test
Test Conditions
/ Bedingungen
Accept/Reject Criteria
Visual/Mech.
/ visuell/mech.
Verify dimensions and materials
/ Kontrolle Abmess./Mat.
Per PF physical description
Resistance
/ Widerstand
In still air @ 23 °C
/ bei ruhiger Luft 23 °C
R
min
≤
R
≤
R
max
Time to Trip
/ Trip-Zeit
At specified current, V
max,
23 °C
/ Bei entspr. Strom
T
≤
max.
time to trip
/ Trip-Zeit
(sec.
)
Hold Current
/ Haltestrom
30 min. at I
hold
/ bei Haltestrom
No trip
Trip Cycle Life
/ Trip-Zyklen
V
max
, I
max
, 100 cycles
/ Zyklen
No arcing or burning
Trip Endurance
/ Zeit im Tripzustand
V
max
, 48 hours
/ Stunden
No arcing or burning
Environmental Characteristics
Operating/Storage Temperature
/ Einsatz/Lagertemp.
–40 °C
to /
bis +85 °C
Maximum Device Surface Temperature in Tripped State
/
125 °C
Passive Aging
/ passive Alterung
+85 °C, 1000
hours
/ Std.
± 5%
typ. resist. change
Humidity Aging
/ Feuchtigkeitsalterung
+85 °C, 85% R.H. 1000
hours
/ Std.
± 5%
typ. resist. change
Thermal Shock
/ Thermischer Schock
+85 °C
to/
bis –40 °C, 20
times
/ Zyklen
± 10%
typ. resist. change
Solvent Resistance
/ Lösungsmittel-Beständigkeit
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method 2007.1,
No change
Condition A
0.1 1 10 100
100
10
1
0.1
0.01
0.001
Fault current
(A)
Time to trip
(s)
PFMD.010.2
PFMD.125.2
PFMD.075.2
PFMD.260.2
PFMD.110.2
PFMD.050.2
PFMD.150.2
PFMD.030.2
PFMD.014.2
PFMD.020.2
PFMD.160.2
PFMD.200.2
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FUSES
/ SICHERUNGEN
PFMD
Resettable fuses
www.schurter.com
14
Type
/ Typ
I
max
V
max
I
hold
I
trip
Initial
1 Hour (R1) Post-
Max. Time
Tripped Power
Resistance
/
Reflow Resistance
/
to trip at 23 °C/8A
/
Dissipation
/
Amperes at 23 °C
/
Ohms at 23 °C
/
Amperes
/
Seconds
/
Watts at 23 °C
/
A
V
Hold
Trip
R
min.
R
1 max.
at
/ bei
23 °C at
/ bei
23 °C
PFMD.010.2
40
60.0
0.10
0.30
0.70
15.00
0.5
1.5
1.0
PFMD.014.2
40
60.0
0.14
0.34
0.40
6.50
1.5
0.15
1.0
PFMD.020.2
80
30.0
0.20
0.40
0.40
6.00
6.0
0.06
1.0
PFMD.030.2
100
30.0
0.30
0.60
0.30
3.00
8.0
0.10
1.2
PFMD.050.2
100
15.0
0.50
1.00
0.15
1.00
8.0
0.15
1.2
PFMD.075.2
100
13.2
0.75
1.50
0.11
0.45
8.0
0.20
1.2
PFMD.075.24.2
100
24.0
0.75
1.50
0.11
0.45
8.0
0.20
1.2
PFMD.110.2
100
6.0
1.10
2.20
0.04
0.21
8.0
0.30
1.2
PFMD.110.16.2
100
16.0
1.10
2.20
0.04
0.21
8.0
0.30
1.2
PFMD.125.2
100
6.0
1.25
2.50
0.035
0.14
8.0
0.4
1.5
PFMD.150.2
100
6.0
1.50
3.00
0.03
0.12
8.0
0.5
1.5
PFMD.160.2
100
8.0
1.60
2.80
0.035
0.10
8.0
2.0
1.5
PFMD.200.2
100
6.0
2.00
4.00
0.020
0.10
8.0
3.0
1.5
PFMD.260.2
100
6.0
2.60
5.20
0.015
0.08
8.0
5.0
1.5
Electrical Characteristics
Model
/ Modell
A
B
C
D
min.
max.
min.
max.
min.
max.
min.
PFMD.010.2
4.37
4.73
3.07
3.41
0.56
0.81
0.30
(0.172)
(0.186)
(0.121)
(0.134)
(0.022)
(0.032)
(0.012)
PFMD.014.2
4.37
4.73
3.07
3.41
0.56
0.81
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.022)
(0.032)
(0.012)
PFMD.020.2
4.37
4.73
3.07
3.41
0.56
0.81
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.022)
(0.032)
(0.012)
PFMD.030.2
4.37
4.73
3.07
3.41
0.56
0.81
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.022)
(0.032)
(0.012)
PFMD.050.2
4.37
4.73
3.07
3.41
0.38
0.62
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.015)
(0.024)
(0.012)
PFMD.075.2
4.37
4.73
3.07
3.41
0.38
0.62
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.015)
(0.024)
(0.012)
PFMD.075.24.2
4.37
4.73
3.07
3.41
0.38
0.62
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.015)
(0.024)
(0.012)
PFMD.110.2
4.37
4.73
3.07
3.41
0.38
0.62
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.015)
(0.024)
(0.012)
PFMD.110.16.2
4.37
4.73
3.07
3.41
0.38
0.62
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.015)
(0.024)
(0.012)
PFMD.125.2
4.37
4.73
3.07
3.41
0.30
0.48
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.012)
(0.019)
(0.012)
PFMD.150.2
4.37
4.73
3.07
3.41
0.30
0.48
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.012)
(0.019)
(0.012)
PFMD.160.2
4.37
4.73
3.07
3.41
0.30
0.48
0.30
( 0.172)
( 0.186)
( 0.121)
( 0.134)
(0.012)
(0.019)
(0.012)
PFMD.200.2
4.37
4.73
3.07
3.41
0.30
0.48
0.30
( 0.172)
(0.186)
( 0.121)
(0.134)
(0.012)
(0.019)
(0.012)
PFMD.260.2
4.37
4.73
3.07
3.41
0.25
0.48
0.30
(0.172)
(0.186)
(0.121)
( 0.134)
(0.010)
(0.019)
(0.012)
Dimensions
Packaging: 2000 pcs. per reel
Dimensions in mm/inches
Soldering Profile
Note PFMD
• models can be wave soldered and
reworked.
Maximum Package Body Temperature (220 °C)
Melting Temperature of Solder (183 °C)
2 Minutes or More
Preheat
Flux Activation
Reflow
Cool
10° to 20 C
per Second
Less than
120 °C per
Second
300
250
200
150
100
50
0
0 30 60 100 150 200 250
T
emperatur
e (°
C) /
Time (Second)
(s)
PF MD .xxx .x
PTC-Fuse /
Style
MD = 4,5 mm Surface Mount Component
Hold Current, I
hold
010-260 (0,10 A - 2,60 A)
Packaging
Packaged per EIA 481-1
2 =
Tape and reel /
Thermal Derating Chart-I
hold /
I
trip
(Amps)
Type
/ Typ
Ambient Operating Temperature
–40 ˚C
–20 ˚C
0 ˚C
23 ˚C
40 ˚C
50 ˚C
60 ˚C
70 ˚C
85 ˚C
PFMD.010.2
0.16 / 0.32
0.14 / 0.28
0.12 / 0.24
0.11 / 0.22
0.08 / 0.16
0.07 / 0.14
0.06 / 0.12
0.05 / 0.10
0.03 / 0.06
PFMD.014.2
0.23 / 0.52
0.19 / 0.45
0.17 / 0.40
0.14 / 0.34
0.12 / 0.29
0.10 / 0.25
0.09 / 0.23
0.08 / 0.21
0.06 / 0.16
PFMD.020.2
0.29 / 0.58
0.26 / 0.52
0.23 / 0.46
0.20 / 0.40
0.17 / 0.34
0.15 / 0.30
0.14 / 0.28
0.12 / 0.24
0.10 / 0.20
PFMD.030.2
0.44 / 0.88
0.39 / 0.78
0.35 / 0.70
0.30 / 0.60
0.26 / 0.52
0.23 / 0.46
0.21 / 0.42
0.18 / 0.36
0.15 / 0.30
PFMD.050.2
0.77 / 1.54
0.68 / 1.36
0.59 / 1.18
0.50 / 1.00
0.44 / 0.88
0.40 / 0.80
0.37 / 0.74
0.33 / 0.66
0.29 / 0.58
PFMD.075.2
1.15 / 2.30
1.01 / 2.02
0.88 / 1.76
0.75 / 1.50
0.65 / 1.30
0.60 / 1.20
0.55 / 1.10
0.49 / 0.98
0.43 / 0.86
PFMD.075.24.2
1.11 / 2.22
1.00 / 2.00
0.85 / 1.70
0.75 / 1.50
0.67 / 1.34
0.61 / 1.22
0.52 / 1.06
0.50 / 1.00
0.42 / 0.84
PFMD.110.2
1.59 / 3.18
1.43 / 2.86
1.26 / 2.52
1.10 / 2.20
0.95 / 1.90
0.87 / 1.74
0.80 / 1.60
0.71 / 1.42
0.60 / 1.20
PFMD.110.16.2
1.59 / 3.18
1.43 / 2.86
1.26 / 2.52
1.10 / 2.20
0.95 / 1.90
0.87 / 1.74
0.80 / 1.60
0.71 / 1.42
0.60 / 1.20
PFMD.125.2
1.80 / 3.61
1.63 / 3.25
1.43 / 2.86
1.25 / 2.50
1.08 / 2.16
0.99 / 1.98
0.91 / 1.82
0.81 / 1.62
0.68 / 1.36
PFMD.150.2
2.17 / 4.34
1.95 / 3.90
1.72 / 3.44
1.50 / 3.00
1.30 / 2.59
1.18 / 2.37
1.09 / 2.18
0.97 / 1.94
0.82 / 1.64
PFMD.160.2
2.30 / 5.00
2.20 / 4.40
1.90 / 3.80
1.60 / 2.80
1.45 / 2.90
1.30 / 2.60
1.15 / 2.30
1.03 / 2.06
0.91 / 1.82
PFMD.200.2
3.08 / 6.14
2.71 / 5.39
2.35 / 4.62
2.00 / 4.01
1.80 / 1.61
1.60 / 3.19
1.50 / 2.98
1.07 / 2.12
0.80 / 1.58
PFMD.260.2
4.00 / 7.98
3.52 / 7.01
3.06 / 6.09
2.60 / 5.15
2.34 / 4.64
2.08 / 4.13
1.95 / 3.87
1.39 / 2.74
1.04 / 2.05
How To Order
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