BY251 SHUNYE | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
: JEDEC DO-201AD molded plastic body Terminals : Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity : Color band denotes cathode end Mounting Position : Any Weight :0.04 ounce, 1.10 grams The plastic package carries Underwriters Laboratory Flammability Classification 94V-0 Construction utilizes void-free molded plastic technique Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 250 C/10 seconds,0.375 (9.5mm) lead length, 5 lbs. (2.3kg) tension
FEATURES
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS VOLTS VOLTS VOLTS SYMBOLS UNITS Amps Amps Volts V RRM V RMS V DC I (AV) I FSM V F 3.0 150 1.1 Operating junction and storage temperature range Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 0.375 (9.5mm) lead length at T A =75 C Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum instantaneous forward voltage at 3.0A Maximum DC reverse current T A =25 C at rated DC blocking voltage T A =100 C Typical junction capacitance (NOTE 1) Note: 1.Measured at 1MHz and applied reverse voltage of 4.0V D.C. 2.Thermal resistance from junction to ambient at 0.375 (9.5mm)lead length,P.C.B. mounted I R 10.0 500 R q JA C J T J T STG 20.0 30.0 -65 to +175 pF C A u Typical thermal resistance (NOTE 2) C/W 200 140 200 BY251 400 280 400 BY252 600 420 600 BY253 800 560 800 BY254 1300 910 1300 BY255 Ratings at 25 C ambient temperature unless otherwise specified. Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%. DO-201AD 0.220 (5.6) 0.197(5.0) DIA. 0.052 (1.25) 0.048 (1.15) DIA. 0.375(9.5) 0.285(7.2) Dimensions in inches and (millimeters) 1.0 (25.4) MIN. 1.0 (25.4) MIN. GENERAL PURPOSE SILICON RECTIFIER BY251 THRU BY255 www.shunyegroup.com.cn V2.22
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, AMPERES INSTANTANEOUS FORWARD CURRENT,AMPERES JUNCTION CAPACITANCE, pF £PEAK FORWARD SURGE CURRENT, AMPERES INSTANTANEOUS FORWARD VOLEAGE, VOLTS Single Phase Half Wave 60Hz Resistive or inductive Load 100 0.01 0.1 T J =25 C PULSE WIDTH=300 m s 1%DUTY CYCLE T J =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) BY251 THRU BY255 www.shunyegroup.com.cn V2.22