RL257

BL FEATURES GALAXY ELECTRICAL RL251 - - - RL257 VOLTAGE RANGE: 50 --- 1000 V CURRENT: 2.5 A PLASTIC SILICON RECTIFIER Low cost Diffused junction Low leakage Low forward voltage drop H igh current capability Easily cleaned with Freon,Alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 R-3 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 R atings 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 Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forw ard rectified current 9.5mm lead length @TA=75 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 Typical junction capacitance Typical thermal resistance @TA=25 @TA=100 (Note1) (Note2) RL 252 100 70 100 RL 253 200 140 200 RL 254 400 280 400 2.5 RL 255 600 420 600 RL 256 800 560 800 RL 257 1000 700 1000 UNITS V V V A V RRM V RMS VDC IF(AV) 50 35 50 IFSM 150.0 A VF IR CJ R JA 1.1 5.0 50.0 25 30 -55----+150 -55----+150 V A pF /W Operaring junction temperature range Storage temperature range TJ TSTG NOTE: 1. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 2. Thermal resistance f rom junction to ambient. www.galaxycn.com Document Number 0260007 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES FIG.1 -- FORWARD DERATING CURVE INSTANTANEOUS FORWARD CURRENT AMPERES RL251- - - RL257 FIG.2 -- TYPICAL FORWARD CHARACTERISTIC 100 10 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 T J =25 Pulse Width=300us AVERAGE FORWARD CURRENT 2.5 2.0 1.5 AMPERES 1.0 0.5 Single Phase Half Wave 60HZ Resistive or Inductive Load 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE, INSTANTANEOUS FORWARD VOLTAGE,VOLTS FIG.3 -- PEAK FORWARD SURGE CURRENT FIG.4 --TYPICAL JUNCTION CAPACITANCE PEAK FORWARD SURGE CURRENT JUNCTION CAPACITANCE,pF 200 100 60 40 20 10 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 f=1MHz TJ =25 150 T J =125 ℃ 8.3ms Single Half Sine-W ave AMPERES 100 50 0 1 2 4 8 10 20 40 60 80 100 100 NUMBER OF CYCLES AT 60Hz REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0260007 BLGALAXY ELECTRICAL 2.