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Features
Applications
■
■
■
■
■
Surface Mount Device
Reduced footprint size
High voltage surge capabilities
Assists in meeting ITU K.20/K.21/K.45
specifications
RoHS compliant*
Provides overcurrent protection in:
■ Customer Premise Equipment (CPE)
■ Central Office (CO)
■ Access/Outside Plant Equipment
■
Agency recognition:
T V Rheinland
MF-SM013/250V - Telecom PTC Resettable Fuses
Electrical Characteristics
Max.
Max.
One Hour Tripped
Operating
Voltage
Interrupt
Ratings
Hold
Current
Initial
Resistance
Post-Trip Power
Resistance Dissipation
Model
Volts
Volts
(V)
Amps
(A)
Amps
at
Ohms
at
Ohms
at
Ohms
at
Watts
at
23 ° C
23 ° C
23 ° C
23 ° C
23 ° C
Max.
Max.
IH
Min.
Max.
Max.
Typ.
MF-SM013/250V
60
250
3.0
0.13
6.5
12.0
20.0
3.0
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
+60 °C, 1000 hours ±5 % typical resistance change
Humidity Aging ........................................................+85 °C, 85 % R.H. 500 hours..........................................±5 % 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 SM013/250V 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........................................................E 174545S
CSA File Number ....................................................CA 110338
TüV File Number ....................................................R2057213
Thermal Derating Chart -Ihold / Itrip (Amps)
Ambient Operating Temperature
Model
-40 ° C
-20 ° C
0 ° C
23 ° C
40 ° C
50 ° C
60 ° C
70 ° C
85 ° C
MF-SM013/250V
0.21 / 0.42 0.18 / 0.37
0.16 / 0.31 0.13 / 0.26 0.10 / 0.23
0.09 / 0.18 0.08 / 0.15 0.07 / 0.12 0.05 / 0.10
* 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.
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