B1250T

B1250T Datasheet


n Overcurrent protection to Telcordia GR-1089-CORE Issue 4 B1250T only & UL 1950/60950

Part Datasheet
B1250T B1250T B1250T (pdf)
Related Parts Information
B2000T B2000T B2000T
B0500T B0500T B0500T
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*RoHS COMPLIANT LEAD FREE
n For use in telecommunication circuit applications requiring low current protection with high surge tolerance
n Overcurrent protection to Telcordia GR-1089-CORE Issue 4 B1250T only & UL 1950/60950
n products are recommended for the overvoltage section of the circuit

These models are currently available but not recommended for new designs.
n Agency recognition File E198545 n RoHS compliant*

Telefuse SMD Power Cross Protection Fuse

Electrical Characteristics

Model Number B0500T B1250T B2000T

Ampere Rating

Typical Cold

Resistance Ohms

Volt-drop 100 % In

Volts Max.

Melting I2T < 10 msec A2 sec.
2 14 33

Melting I2T 10 In A2 sec. 17 37

Maximum Power

Dissipation W

Temperature Range °C to +125 °C

Environmental Characteristics

Thermal Shock................. MIL-STD-202,

Method 107, Test Condition B
-65 °C to +125 °C

Shock.......... MIL-STD-202, Method 213,

Test Condition I
100 Gs peak for 6 milliseconds

Vibration....... MIL-STD-202, Method 201
10-55 Hz, inch total excursion

Salt Spray.... MIL-STD-202, Method 101,

Test Condition B 48 hrs.

Insulation Resistance....... MIL-STD-202,

Method 302, Test Condition A
after opening
10,000 ohms minimum

Solderability

MIL-STD-202, Method 208

Resistance to Solder Heat

MIL-STD-202, Method 210,

Test Condition J 235 °C, 30 sec.

Physical Characteristics
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Datasheet ID: B1250T 522089