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PDF MF-SM075 Data sheet ( Hoja de datos )
| Número de pieza | MF-SM075 | |
| Descripción | (MF-SMxxx) PTC Resettable Fuses | |
| Fabricantes | Bourns | |
| Logotipo |  |
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Features
■ Surface Mount Devices
■ Fully compatible with current
industry standards
■ Packaged per EIA 481-2 standard
■ 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
MF-SM050
MF-SM075
MF-SM075/60*
MF-SM100
MF-SM100/33
MF-SM125
MF-SM150
MF-SM150/33
MF-SM200
MF-SM250
MF-SM260
MF-SM300**
60
60
30
60
30
33
15
15
33
15
15
6
6
40
40
80
10
80
40
100
100
40
100
100
100
100
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.30 0.60
0.50 1.00
0.75 1.50
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
3.00 6.00
Resistance
Ohms
at 23 °C
RMin.
R1Max.
0.90 4.80
0.35 1.40
0.23 1.00
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
0.015
0.048
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
8.0
8.0
Seconds
at 23 °C
Max.
3.0
4.0
0.3
0.3
0.5
0.5
2.0
5.0
5.0
12.0
25.0
20.0
35.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.9
1.9
1.9
1.9
1.7
1.5
*CSA recognition pending. **UL approved, CSA & TUV approval pending.
Environmental Characteristics
DataShee
Operating Temperature..............................................................-4D0a°CtatSo h+8e5e°tC4U.com
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 (Amps)
Model
-40 °C
-20 °C
MF-SM030
0.45 0.40
MF-SM050
0.76 0.67
MF-SM075
1.11 0.99
MF-SM075/60
1.11 0.99
MF-SM100
1.66 1.47
MF-SM100/33
1.66 1.47
MF-SM125
1.89 1.68
MF-SM150
2.27 2.01
MF-SM150/33
2.27 2.01
MF-SM200
3.02 2.68
MF-SM250
3.78 3.35
MF-SM260
3.64 3.25
MF-SM300
4.13 3.75
DataSheet4U.com
Itrip is approximately two times Ihold.
0 °C
0.35
0.59
0.84
0.84
1.29
1.29
1.46
1.76
1.76
2.34
2.93
2.91
3.30
Ambient Operating Temperature
23 °C
0.30
0.50
0.75
0.75
1.10
1.10
1.25
1.50
1.50
2.00
2.50
2.60
2.87
40 °C
0.25
0.42
0.63
0.63
0.91
0.91
1.04
1.25
1.25
1.66
2.08
2.26
2.62
50 °C
0.23
0.38
0.57
0.57
0.83
0.83
0.94
1.13
1.13
1.50
1.88
2.08
2.43
60 °C
0.20
0.33
0.49
0.49
0.73
0.73
0.83
0.99
0.99
1.32
1.65
1.95
2.25
70 °C
0.17
0.29
0.45
0.45
0.64
0.64
0.73
0.87
0.87
1.16
1.45
1.74
2.00
85 °C
0.14
0.23
0.36
0.36
0.50
0.50
0.56
0.68
0.68
0.90
1.13
1.48
1.78
DataSheet4 U .com
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Product manufactured with a date code later than April 1, 2005 is RoHS compliant.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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