BL GALAXY ELECTRICAL RL251 - - - RL257 VOLTAGE RANGE: 50 --- 1000 V CURRENT: 2.5 A PLASTIC SILICON RECTIFIER FEATURES R-3 Low cost Diffused junction Low leakage Low forward voltage drop High current capability Easily cleaned with Freon,Alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC R-3,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method208 Polarity: Color band denotes cathode end Weight:0.021 ounces0.58 grams Mounting position: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate current by 20%. RL 251 RL 252 RL 253 RL 254 RL 255 RL 256 RL 257 UNITS Maximum recurrent peak reverse voltage V RRM 50 100 200 400 600 800 1000 V Maximum RMS voltage V RMS 35 70 140 280 420 560 700 V Maximum DC blocking voltage VDC 50 100 200 400 600 800 1000 V Maximum average forw ard rectified current 9.5mm lead length @TA=75 IF(AV) 2.5 A IFSM 150.0 A VF 1.1 V Peak forw ard surge current 8.3ms single half-sine-w ave superimpoded on ratde load @TJ =125 Maximum instantaneous forw ard voltage @ 2.5 A Maximum reverse current at rated DC blocking voltage @TA=25 @TA=100 Typical junction capacitance (Note1) Typical thermal resistance (Note2) Operaring junction temperature range Storage temperature range 5.0 IR 50.0 CJ R 25 30 JA TJ -55----+150 TSTG -55----+150 NOTE: 1. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 2. Thermal resistance f rom junction to ambient. Document Number 0260007 BLGALAXY ELECTRICAL A pF /W www.galaxycn.com 1. RATINGS AND CHARACTERISTIC CURVES RL251- - - RL257 2.0 1.5 Single Phase Half Wave 60HZ Resistive or Inductive Load 1.0 0.5 0 0 25 50 75 100 125 150 175 FIG.2 -- TYPICAL FORWARD CHARACTERISTIC INSTANTANEOUS FORWARD CURRENT AMPERES 2.5 AMPERES AVERAGE FORWARD CURRENT FIG.1 -- FORWARD DERATING CURVE AMBIENT TEMPERATURE, T J =125℃ 8.3ms Single Half Sine-W ave 100 50 1 2 4 8 10 20 T J =25 Pulse Width=300us 4 2 1.0 0.4 0.2 0.1 0.06 0.04 0.02 0.01 0.6 0.8 1.0 1.2 1.4 1.6 40 60 80 100 FIG.4 --TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE,pF AMPERES PEAK FORWARD SURGE CURRENT 200 0 10 INSTANTANEOUS FORWARD VOLTAGE,VOLTS FIG.3 -- PEAK FORWARD SURGE CURRENT 150 100 NUMBER OF CYCLES AT 60Hz 100 60 f=1MHz TJ =25 40 20 10 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0260007 BLGALAXY ELECTRICAL 2.