PL IA N T Features M ■ For use in telecommunication circuit applications requiring low current protection *R oH S CO with high surge tolerance ■ Overcurrent protection to Telcordia GR-1089-CORE Issue 4 (B1250T only) & UL 1950/60950 ■ Bourns® TISP® products are recommended for the overvoltage section of the circuit ■ Agency recognition: File: E198545 ■ RoHS compliant* Telefuse™ SMD Power Cross Protection Fuse Electrical Characteristics Model Number B0500T B1250T B2000T Ampere Rating (A) 0.500 1.25 2.0 Typical Cold Resistance (Ohms) 0.350 0.075 0.056 Voltage Rating (VRMS) 600 600 600 Temperature Range ................................-55 °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, 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 ........ RoHS 6 Compliant lead free RoHS reflow compatible; reference 240 °C, 30 sec. max. Soldering Process Window IR Reflow 240 °C for 30 seconds max. (Not recommended for Wave solder direct immersion) Packaging ..........2,000 pcs. per 13 ” reel Volt-drop @ 100 % In (Volts) Max. 0.23 0.18 0.16 Melting I2T < 10 msec (A2 sec.) 2 14 33 Maximum Power Dissipation (W) 0.20 0.40 0.52 Melting I2T @ 10 In (A2 sec.) 2.3 17 37 Lightning Surge Withstand Capabilities Max. Rise/ Min. Decay (µs) 10/1000 10/360 2/10 10/360 2/10 8/20 Minimum Peak Voltage (V) 1000 1000 2500 1000 5000 5000 Repetitions Each Total Polarity 50 25 50 25 20 10 10 5 2 1 2 1 Minimum Withstand Peak Current (A) B0500T 25 30 120 30 120 75 B1250T 100 125 500 125 500 300 B2000T 120 150 600 150 600 350 Test Methods per GR-1089/TIA-968-A (FCC Pt. 68) AC Power Fault Tests GR-1089 1st Level Test 1 2 3 4 6 7 8 9 Voltage (VRMS) 50 100 200, 400, 600 1000 600 440 600 1000 Fuse Characteristics Short Circuit Current (A) Applications Duration 0.33 0.17 1 1 1 60 15 min. 15 min. 1 sec. B0500T B1250T B2000T Parts pass all 1st Level tests 1 0.5 2.2 3 5 60 1 5 5 5 1 sec. 30 sec. 2 sec. 1.1 sec. 0.4 sec. Will open Will open Will open Parts pass all 1st Level tests AC Current Limiting Protector Tests/Fusing Coordination Tests Voltage (Vac) 600 600 600 600 600 600 600 600 600 600 600 Current (A) 2.2 2.6 3.0 3.75 5 7 10 12.5 20 25 30 Duration Up to 15 Min. Maximum Time for Fuse to Open (Seconds) B0500T B1250T B2000T 1.0 900 Will not open 0.8 50 2000 0.5 10 100 0.3 5 10 0.2 2 3 0.08 1 2 0.04 0.5 0.7 0.01 0.2 0.3 0.005 0.07 0.1 0.004 0.04 0.07 0.003 0.02 0.05 *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. Telefuse™ SMD Power Cross Protection Fuse Product Dimensions Time/Current Characteristic Curve 2.03 ± .102 (.080 ± .004) 1000 Current (Amperes) 100 9.65 ± .254 (.38 ± .01) 10 B2000T B1250T 1 3.05 ± .127 (.120 ± .005) 0.1 0.01 0.01 3.05 ± .127 (.120 ± .005) B0500T 0.1 1 10 100 1000 10000 Time (Seconds) Recommended Pad Layout Solder Profile 3.81 (.15) TP tp MAX. RAMP-UP RATE = 3 °C/sec. MAX. RAMP-DOWN RATE = 6 °C/sec. Tc -5 °C 4.06 (.16) TL Temperature t 5.08 (.20) TS MAX. DIMENSIONS: TS MIN. MM (INCHES) ts PREHEAT 25 °C t 25 °C TO PEAK Time IR Reflow Profile Reflow Parameter Value Minimum Preheat Temperature (TSMIN) Maximum Preheat Temperature (TSMAX) 130 °C 170 °C Preheat Time 60-180 seconds TSMAX to TL Ramp-Up Rate Time above Temperature TL (tL) 3 °C / second max. 200 °C for 60-120 seconds Peak Temperature (TP) 240 °C max. Time within 5 °C of Peak TP 20-30 seconds Ramp-Down Rate 6 °C / second. max. 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. Telefuse™ SMD Power Cross Protection Fuse Packaging Specifications 2.2 (.087) 20 (.787) 13.0 DIA. (.512) 1.55 ± 0.05 (.061 ± .002) DIA. 55.0 (2.165) DIA. 21.0 (.827) DIA. 0.40 ± 0.05 (.016 ± .002) 2.0 ± 0.1 (.079 ± .004) 1.75 ± 0.1 (.069 ± .004) 1.6 ± 0.05 (.063 ± .002) DIA. CL 7.50 ± 0.1 (.295 ± .004) 10.0 ± 0.1 (.394 ± .004) R 3 ° REF. 3.50 ± 0.1 (.138 ± .004) 330 (12.992) DIA. 4.0 ± 0.1 (.157 ± .004) 0.3 (.012) TYP. 16.0 ± 0.3 (.630 ± .012) 8.0 ± 0.1 (.315 ± .004) 3.50 ± 0.1 (.138 ± .004) 1.6 (.063) DIMENSIONS: MM (INCHES) REV. 10/14 “Telefuse” is a trademark of Bourns, Inc. 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. CL