B0500T

Features I I I I For use in telecommunication circuit applications requiring low current protection with high surge tolerance Overcurrent protection to Telcordia GR-1089-CORE & UL 1950/60950 Bourns® TISP® products are recommended for the overvoltage section of the circuit Agency recognition: File: E198545 Telefuse™ SMD Power Cross Protection Fuse Electrical Characteristics Typical Cold Resistance (ohms) 0.350 0.090 Volt-drop @ 100 % In (Volts) max. 0.28 0.18 Melting I2T < 10 msec (A2 sec.) 1.4 14 Melting I2T @ 10 In (A2 sec.) 1.8 17 Peak Surge Current (Amps) 50 Pulses @ 1 KV 10 µs x 1000 µs Model Number B0500T B1250T Ampere Rating (A) 0.500 1.25 Voltage Rating (Vrms) 600 600 Peak Surge Current (Amps) 10 Pulses @ 1 KV 10 µs x 1000 µs Maximum Power Dissipation (W) 0.25 0.40 25 100 35 N/A % of Amp Rating 100 % 200 % 500 % 1000 % Opening Time Minimum Maximum 4 hrs. N/A 3 sec. 60 sec. 100 msec. 1.5 sec. 30 msec. 300 msec. Surge Withstand Ratings (Model B1250T ) Voltage 800 V 1000 V 2500 V 5000 V Peak Surge Current 100 A 100 A 500 A 500 A Maximum Rise/Duration Time 10 µs x 560 µs 10 µs x 1000 µs 2 µs x 10 µs 2 µs x 10 µs Repetitions 4 Pulses (2 each polarity) 100 Pulses (50 each polarity) 40 Pulses (20 each polarity) 4 Pulses (2 each polarity) Temperature Range.................................................-55 ºC to +125 ºC 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, 0.06 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 Body Material ..............................Ceramic with tin plated brass caps Solder ..................................................................................Lead-free Packaging .......................................................2,000 pcs. per 13” reel Power Cross Rating Overload Current 200 % Fuse Rating 2.2 A 7A 40 A 60 A Voltage (VAC) 600 V 600 V 600 V 600 V 600 V Clearing Time Limit 1.25 A 500 mA max. 60 sec. max. 15 min. max. 1 sec. max. 50 msec. max. 20 msec. max. 60 sec. max. 2 min. max. 100 msec. max. 30 msec. max. 20 msec. Ordering Information Part Number B0500T B1250T Current Rating 500 mA 1.25 A Reliable Electronic Solutions Asia-Pacific: TEL +886- (0)2 25624117 • FAX +886- (0)2 25624116 Europe: TEL +41-41 7685555 • FAX +41-41 7685510 North America: TEL +1-909 781-5500 • FAX +1-909 781-5700 bourns.com Specifications are subject to change without notice. Telefuse™ SMD Power Cross Protection Fuse Typical Current Withstand vs. Current Duration 100 Product Dimensions 2.03 ± .102 (.080 ± .004) 10 9.65 ± .254 (.38 ± .01) 3.05 ± .127 (.120 ± .005) 3.05 ± .127 (.120 ± .005) IRMS - RMS Current - A TISP4xxxH3BJ / TISP5xxxH3BJ B1250T 1 B0500T Recommended Pad Layout 3.81 (.15) 0.1 0.01 0.1 1 10 100 1000 4.06 (.16) t - Current Duration - s 5.08 (.20) DIMENSIONS: mm (INCHES) Packaging Specifications 2.2 (.087) 13.0 DIA. (.512) 20 (.787) 0.40 ± 0.05 (.016 ± .002) 1.55 ± 0.05 (.061 ± .002) DIA. 1.6 ± 0.05 (.063 ± .002) DIA. 2.0 ± 0.1 (.079 ± .004) 4.0 ± 0.1 (.157 ± .004) 1.75 ± 0.1 (.069 ± .004) 21.0 (.827) DIA. 55.0 (2.165) DIA. C L 10.0 ± 0.1 (.394 ± .004) R 0.3 (.012) TYP. 7.50 ± 0.1 (.295 ± .004) 16.0 ± 0.3 (.630 ± .012) 3 ° REF. 3.50 ± 0.1 (.138 ± .004) 330 (12.992) DIA. 1.6 (.063) 8.0 ± 0.1 (.315 ± .004) 3.50 ± 0.1 (.138 ± .004) C L “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. Specifications are subject to change without notice. 08/02 COPYRIGHT© 2002, BOURNS, INC. LITHO IN U.S.A. 08/02 e/L0204