B0500T ETC1

Document overview

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Technical content

Features

I For use in telecommunication circuit applications requiring low current protection with high surge tolerance I Overcurrent protection to Telcordia GR-1089-CORE & UL 1950/60950 I Bourns® TISP® products are recommended for the overvoltage section of the circuit I Agency recognition: File: E198545

Ordering Information

% of Amp Rating Opening Time Minimum Maximum 100 % 4 hrs. N/A 200 % 3 sec. 60 sec. 500 % 100 msec. 1.5 sec. 1000 % 30 msec. 300 msec. Peak Maximum Voltage Surge Rise/Duration Repetitions Current Time

800 V 100 A 10 µs x 560 µs 4 Pulses

(2 each polarity)

1000 V 100 A 10 µs x 1000 µs 100 Pulses

(50 each polarity)

2500 V 500 A 2 µs x 10 µs 40 Pulses

(20 each polarity)

5000 V 500 A 2 µs x 10 µs 4 Pulses

(2 each polarity) Part Number Current Rating B0500T 500 mA B1250T 1.25 A Overload Voltage Clearing Time Limit Current (VAC) 1.25 A 500 mA 200 % 600 V max. 60 sec. max. 60 sec.Fuse Rating 7 A 600 V max. 1 sec. max. 100 msec. 40 A 600 V max. 50 msec. max. 30 msec. 60 A 600 V max. 20 msec. max. 20 msec. Power Cross Rating Surge Withstand Ratings (Model B1250T ) Peak Surge Peak Surge Ampere Voltage Typical Volt-drop Melting I2T Melting I 2T Current Current Maximum Model Rating Rating Cold @ 100 % In < 10 msec @ 10 In (Amps) (Amps) Power Number (A) (Vrms) Resistance (Volts) (A2 sec.) (A 2 sec.) 50 Pulses @ 1 KV 10 Pulses @ 1 KV Dissipation (ohms) max. 10 µs x 1000 µs 10 µs x 1000 µs (W) B1250T 1.25 600 0.090 0.18 14 17 100 N/A 0.40

Electrical Characteristics

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Specifications are subject to change without notice. “Telefuse” is a trademark of Bourns, Inc. “TISP” is a trademark of Power Innovations, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office. Typical Current Withstand vs. Current Duration Packaging Specifications Telefuse™ SMD Power Cross Protection Fuse 100 0.1 0.01 0.1 1 10 100 1000 t - Current Duration - s - RMS Current - AIRMS B1250T B0500T TISP4xxxH3BJ / TISP5xxxH3BJ 3.05 ± .127 (.120 ± .005) 3.05 ± .127 (.120 ± .005) 2.03 ± .102 (.080 ± .004) 9.65 ± .254 (.38 ± .01) 3.81 (.15) 4.06 (.16) 5.08 (.20) Product Dimensions Recommended Pad Layout DIMENSIONS: mm (INCHES) COPYRIGHT© 2002, BOURNS, INC. LITHO IN U.S.A. 08/02 e/L0204 330 (12.992) 2.0 ± 0.1 (.079 ± .004) 0.40 ± 0.05 (.016 ± .002) 1.55 ± 0.05 (.061 ± .002) DIA. 1.6 ± 0.05 (.063 ± .002) DIA. 0.3 (.012) TYP. R 1.6 (.063) (.787) 2.2 (.087) 13.0 (.512) DIA. 55.0 (2.165) DIA. DIA. 21.0 (.827) DIA. 1.75 ± 0.1 (.069 ± .004) 7.50 ± 0.1 (.295 ± .004) 16.0 ± 0.3 (.630 ± .012) 10.0 ± 0.1 (.394 ± .004) 3 ° REF. 4.0 ± 0.1 (.157 ± .004) 8.0 ± 0.1 (.315 ± .004) 3.50 ± 0.1 (.138 ± .004) CL CL