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
Amperes
trip
V max.
I max
Amps
Model
Volts
Ohms
Amperes
Seconds
at 23 °C
Max.
3.0
at 23 °C
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
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
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
1.40
4.0
1.7
80
1.00
0.3
1.7
10
1.00
0.3
1.7
80
0.48
0.5
1.7
40
0.41
0.5
1.7
100
100
40
0.25
2.0
1.7
0.25
5.0
1.9
0.23
5.0
1.9
40
0.15
5.0
1.9
100
100
100
100
0.125
0.085
0.075
0.048
12.0
25.0
20.0
35.0
1.9
1.9
1.7
6
1.5
**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
-40 °C to +85 °C, 20 cycles ........................................-20 ꢀ typical resistance change
Vibration .....................................................................MIL-STD-883C, Method 2007.1, Condition A.............Rmin ≤ R ≤ R1max
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 and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the
Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.