MF-SM013-250-2 Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – Telecom PTC Resettable Fuses

*RoHS ^COMPLIANT
Features
■ Surface mount devices
■ High voltage surge capabilities
■ Binned and sorted resistance ranges
■ Assists in meeting ITU K.20/K.21
specifications
■ RoHS compliant*
■ Agency recognition:
Applications
Used as a secondary overcurrent protection
device in:
■ Customer Premise Equipment (CPE)
■ Central Office (CO)
■ Subscriber Line Interface Cards (SLIC)
MF-SM013/250 - Telecom PTC Resettable Fuses
Electrical Characteristics
Model
Max.
Operating
Voltage
Volts
(V)
MF-SM013/250-2
60
MF-SM013/250-A-2
60
MF-SM013/250-B-2
60
MF-SM013/250-C-2
60
Max. Interrupt
Ratings
Volts
(V)
Max.
250
250
250
250
Amps
(A)
Max.
3.0
3.0
3.0
3.0
Hold
Current
Amps
at 23 °C
IH
0.13
0.13
0.13
0.13
Initial
Resistance
Ohms
at 23 °C
Min.
6.5
6.5
9.0
7.0
Ohms
at 23 °C
Max.
12.0
9.0
12.0
10.0
One Hour
Post-Trip
Resistance
Ohms
at 23 °C
Max.
20.0
20.0
20.0
20.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
3.3
3.3
3.3
3.3
Environmental Characteristics
Operating Temperature......................................... -45 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ................................................ 125 °C
Passive Aging ....................................................... +85 °C, 1000 hours............................................... ±2 % typical resistance change
+60 °C, 1000 hours............................................... ±3 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 500 hours ............................... ±3 % typical resistance change
Thermal Shock ..................................................... MIL-STD-202F, Method 107G,.............................. ±10 % typical resistance change
.......................................................................... +125 °C to -55 °C,10 times................................... ±15 % typical resistance change
Solvent Resistance............................................... MIL-STD-202, Method 215B................................. No change
Lead Solerability ................................................... ANSI/J-STD-002
Flammability ......................................................... IEC 695-2-2 .......................................................... No Flame for 60 secs.
Vibration ............................................................... MIL-STD-883C, Method 2007.1, Condition A ....... No change
Test Procedures And Requirements For Model MF-SM013/250 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 ≤ Rmax
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
TÜV File Number............................................. R2057213
Thermal Derating Chart - Ihold/ Itrip (Amps)
Model
MF-SM013/250-2
MF-SM013/250-A-2
MF-SM013/250-B-2
MF-SM013/250-C-2
-40 ºC
0.21 / 0.42
0.21 / 0.42
0.21 / 0.42
0.21 / 0.42
-20 ºC
0.18 / 0.37
0.18 / 0.37
0.18 / 0.37
0.18 / 0.37
0 ºC
0.16 / 0.31
0.16 / 0.31
0.16 / 0.31
0.16 / 0.31
Ambient Operating Temperature
23 ºC
40 ºC
50 ºC
0.13 / 0.26 0.10 / 0.23 0.09 / 0.18
0.13 / 0.26 0.10 / 0.23 0.09 / 0.18
0.13 / 0.26 0.10 / 0.23 0.09 / 0.18
0.13 / 0.26 0.10 / 0.23 0.09 / 0.18
60 ºC
0.08 / 0.15
0.08 / 0.15
0.08 / 0.15
0.08 / 0.15
70 ºC
0.07 / 0.12
0.07 / 0.12
0.07 / 0.12
0.07 / 0.12
85 ºC
0.05 / 0.10
0.05 / 0.10
0.05 / 0.10
0.05 / 0.10
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
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.