MF-SM125-2 Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – MF-SM Series - PTC Resettable Fuses

LVEREAoRDHSSFIORCNEOSEMAPRLEIANT
Features
■ Surface Mount Devices
■ Fully compatible with current
industry standards
■ Packaged per EIA 481-2 standard
■ Lead free versions are RoHS compliant*
■ Agency recognition:
T V Rheinland
Applications
Almost anywhere there is a low voltage
power supply and a load to be protected,
including:
■ Computers & peripherals
■ General electronics
■ Automotive applications
MF-SM Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
MF-SM030
60
40
MF-SM050
60
40
MF-SM075
30
80
MF-SM100
30
80
MF-SM100/33
33
40
MF-SM125
15
100
MF-SM150
15
100
MF-SM150/33
33
40
MF-SM200
MF-SM250
MF-SM260
15
100
15
100
6
100
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.30
0.60
0.50
1.00
0.75
1.50
1.10
2.20
1.10
2.20
1.25
2.50
1.50
3.00
1.50
3.00
2.00
4.00
2.50
5.00
2.60
5.20
Resistance
Ohms
at 23 °C
RMin.
R1Max.
0.90
4.80
0.35
1.40
0.23
1.00
0.12
0.48
0.12
0.41
0.07
0.25
0.06
0.25
0.06
0.23
0.045
0.125
0.024
0.085
0.025
0.075
Max. Time
To Trip
Amperes
at 23 °C
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
Seconds
at 23 °C
Max.
3.0
4.0
0.3
0.5
0.5
2.0
5.0
5.0
12.0
25.0
20.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
1.7
1.7
1.7
1.7
1.7
1.7
1.9
1.9
1.9
1.9
1.7
Environmental Characteristics
Operating/Storage 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
http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545
CSA File Number................................CA110338
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 - Ihold _/ Itrip (Amps)
Model
MF-SM030
MF-SM050
MF-SM075
MF-SM100
MF-SM100/33
MF-SM125
MF-SM150
MF-SM150/33
MF-SM200
MF-SM250
MF-SM260
-40 °C
0.45 / 0.90
0.76 / 1.52
1.13 / 2.26
1.66 / 3.32
1.66 / 3.32
1.89 / 3.78
2.27 / 4.54
2.27 / 4.54
3.02 / 6.04
3.78 / 7.56
3.64 / 7.28
-20 °C
0.40 / 0.80
0.67 / 1.34
1.01 / 2.02
1.47 / 2.94
1.47 / 2.94
1.68 / 3.36
2.01 / 4.02
2.01 / 4.02
2.68 / 5.36
3.35 / 6.70
3.25 / 6.50
0 °C
0.35 / 0.70
0.59 / 1.18
0.88 / 1.76
1.29 / 2.58
1.29 / 2.58
1.46 / 2.92
1.76 / 3.52
1.76 / 3.52
2.34 / 4.68
2.93 / 5.86
2.91 / 5.82
Ambient Operating Temperature
23 °C
0.30 / 0.60
0.50 / 1.00
0.75 / 1.50
1.10 / 2.20
1.10 / 2.20
1.25 / 2.50
1.50 / 3.00
1.50 / 3.00
2.00 / 4.00
2.50 / 5.00
2.60 / 5.20
40 °C
0.25 / 0.50
0.42 / 0.84
0.62 / 1.24
0.91 / 1.82
0.91 / 1.82
1.04 / 2.08
1.25 / 2.50
1.25 / 2.50
1.66 / 3.32
2.08 / 4.16
2.26 / 4.52
50 °C
0.23 / 0.46
0.38 / 0.76
0.56 / 1.12
0.83 / 1.66
0.83 / 1.66
0.94 / 1.88
1.13 / 2.26
1.13 / 2.26
1.50 / 3.00
1.88 / 3.76
2.08 / 4.16
60 °C
0.20 / 0.40
0.33 / 0.66
0.50 / 1.00
0.73 / 1.46
0.73 / 1.46
0.83 / 1.66
0.99 / 1.98
0.99 / 1.98
1.32 / 2.64
1.65 / 3.30
1.95 / 3.90
70 °C
0.17 / 0.34
0.29 / 0.58
0.44 / 0.88
0.64 / 1.28
0.64 / 1.28
0.73 / 1.46
0.87 / 1.74
0.87 / 1.74
1.16 / 2.32
1.45 / 2.90
1.74 / 3.48
85 °C
0.14 / 0.28
0.23 / 0.46
0.34 / 0.68
0.50 / 1.00
0.50 / 1.00
0.56 / 1.12
0.68 / 1.36
0.68 / 1.36
0.90 / 1.80
1.13 / 2.26
1.48 / 2.96
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.