Features
■ Compliant with AEC-Q200 Rev-C- Stress
Test Qualification for Passive Components
in Automotive Applications
■ RoHS compliant* and halogen free**
■ Agency recognition:
■ Patents pending
■ Surface Mount Devices
■ Fully compatible with current
industry standards
■ Packaged per EIA 481-2 standard
MF-SM Series - PTC Resettable Fuses
Electrical Characteristics
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
1.7
Max. Time
To Trip
I
I
Resistance
hold
trip
V max.
I max
Amps
Model
Volts
Amperes
Ohms
at 23 °C
Amperes
Seconds
at 23 °C
Max.
3.0
at 23 °C
at 23 °C
Hold
Trip
0.60
1.00
1.50
1.50
2.20
2.20
2.50
3.00
3.00
3.60
4.00
5.00
5.20
6.00
R Min.
R1 Max.
4.80
1.40
1.00
1.00
0.48
0.41
0.25
0.25
0.23
0.15
0.125
0.085
0.075
0.048
MF-SM030
MF-SM050
MF-SM075
MF-SM075/60*
MF-SM100
MF-SM100/33
MF-SM125
MF-SM150
MF-SM150/33
MF-SM185/33
MF-SM200
MF-SM250
MF-SM260
MF-SM300**
60
60
30
60
30
33
15
15
33
33
15
15
6
40
40
80
10
80
0.30
0.50
0.75
0.75
1.10
1.10
1.25
1.50
1.50
1.80
2.00
2.50
2.60
3.00
0.90
0.35
0.23
0.23
0.12
0.12
0.07
0.06
0.06
0.04
0.045
0.024
0.025
0.015
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
4.0
0.3
0.3
0.5
1.7
1.7
1.7
1.7
1.7
1.7
1.9
1.9
1.9
1.9
1.9
1.7
40
0.5
2.0
5.0
5.0
100
100
40
40
5.0
100
100
100
100
12.0
25.0
20.0
35.0
6
1.5
*CSA recognition pending.
**UL approved, CSA & TUV approval pending.
Environmental Characteristics
Operating Temperature.............................................. -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ......................................................... 125 °C
Passive Aging............................................................ +85 °C, 1000 hours ................................................... 5 ꢀ typical resistance change
Humidity Aging.......................................................... +85 °C, 85 ꢀ R.H. 7 days......................................... 5 ꢀ typical resistance change
Thermal Shock .......................................................... MIL-STD-202F, Method 107G, .................................. 10 ꢀ typical resistance change
+125 °C to -55 °C,10 cycles
Vibration .................................................................... MIL-STD-883C, Method 2007.1, Condition A........... No change
Test Procedures And Requirements For Model MF-SM Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech............................................................... Verify dimensions and materials................................ Per MF physical description
Resistance................................................................. In still air @ 23 °C....................................................... Rmin ≤ R ≤ R1max
Time to Trip................................................................ At specified current, Vmax, 23 °C ............................. T ≤ max. time to trip (seconds)
Hold Current.............................................................. 30 min. at Ihold.......................................................... No trip
Trip Cycle Life............................................................ Vmax, Imax, 100 cycles............................................. No arcing or burning
Trip Endurance .......................................................... Vmax, 48 hours ......................................................... No arcing or burning
Solderability............................................................... MIL-STD-202F, Method 208F.................................... 95 ꢀ min. coverage
UL File Number ............... E174545
CSA File Number............. CA110338
http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545
http://directories.csa-international.org/ Under “Certification Record” and “File Number” enter 110338-0-000
TÜV Certificate Number .. R 02057213 http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213
Thermal Derating Chart - I
(Amps)
hold
Ambient Operating Temperature
Model
-40 ºC
0.45
-20 ºC
0 ºC
0.35
0.59
0.84
0.84
1.29
1.29
1.46
1.76
1.76
2.08
2.34
2.93
2.91
3.30
23 ºC
0.30
0.50
0.75
0.75
1.10
1.10
1.25
1.50
1.50
1.85
2.00
2.50
2.60
2.87
40 ºC
0.25
0.42
0.63
0.63
0.91
0.91
1.04
1.25
1.25
1.60
1.66
2.08
2.26
2.62
50 ºC
0.23
0.38
0.57
0.57
0.83
0.83
0.94
1.13
1.13
1.44
1.50
1.88
2.08
2.43
60 ºC
0.20
0.33
0.49
0.49
0.73
0.73
0.83
0.99
0.99
1.28
1.32
1.65
1.95
2.25
70 ºC
0.17
0.29
0.45
0.45
0.64
0.64
0.73
0.87
0.87
1.12
1.16
1.45
1.74
2.00
85 ºC
0.14
0.23
0.36
0.36
0.50
0.50
0.56
0.68
0.68
0.88
0.90
1.13
1.48
1.78
MF-SM030
MF-SM050
MF-SM075
MF-SM075/60
MF-SM100
MF-SM100/33
MF-SM125
MF-SM150
MF-SM150/33
MF-SM185/33
MF-SM200
MF-SM250
MF-SM260
MF-SM300
0.40
0.67
0.99
0.99
1.47
1.47
1.68
2.01
2.01
2.32
2.68
3.35
3.25
3.75
0.76
1.11
1.11
1.66
1.66
1.89
2.27
2.27
2.56
3.02
3.78
3.64
4.13
I
is approximately two times I .
trip
hold
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
**To be considered halogen free, each homogenous material can have a maximum concentration of 900 ppm of either bromine or chlorine.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.