BY251 SUNMATE | Alldatasheet
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CURRENT: 3.0 A Flammability Classification 94V-0 Construction utilizes void-free molded plastic technique Low reverse leakage High forward surge current capability High temperature soldering guaranteed: Maximum Ratings and Electrical Characteristics T A = 25/c176C unless otherwise specified Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Mechanical Data Case: DO-201AD, Molded Plastic Terminals: Axial Leads, Solderable per MIL-STD-202 Method 208 Polarity: Color Band Denotes Cathode Approx. Weight: 1.1 grams Mounting Position: Any The plastic package carries Underwriters Laboratory DO-201AD Dim Min Max A 25.40 /c190 B 7.20 9.50 C 1.20 1.30 D 4.80 5.30 All Dimensions in mm A A B C D UnitCharacteristic Symbol RθJA ° AXIAL LEADED SILICON RECTIFIER DIODES www.sunmate.tw
RATINGS AND CHARACTERISTIC CURVES BY251 THRU BY255 3.0 2.4 1.8 1.2 0.6 0 25 50 75 100 125 150 175 150 125 100 0.1 1.0 10 100 0.01 0.1 1 10 100 100 0.1 REVERSE VOLTAGE,VOLTS t,PULSE DURATION,sec. FIG. 5-TYPICAL JUNCTION CAPACITANCE FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE FIG. 3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS NUMBER OF CYCLES AT 60 Hz FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG. 1- FORWARD CURRENT DERATING CURVE AVERAGE FORWARD RECTIFIED CURRENT, AMPERESINSTANTANEOUS FORWARD CURRENT,AMPERES JUNCTION CAPACITANCE, pF £PEAK FORWARD SURGE CURRENT, AMPERES INSTANTANEOUS FORWARD VOLEAGE, VOLTS Single Phase Half Wave 60Hz Resistive or inductive Load 1 10 100 0.01 0.1 TJ=25 C PULSE WIDTH=300 ms 1%DUTY CYCLE TJ=25 C 100 200 0 20 40 60 80 100 1,000 100 0.1 0.01 TJ=100 C TJ=25 C TJ=150 C PERCENT OF PEAK REVERSE VOLTAGE,% FIG. 4-TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, MICROAMPERES TRANSIENT THERMAL IMPEDANCE, C/W AMBIENT TEMPERATURE, C 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) www.sunmate.tw