BL GALAXY ELECTRICAL BYV37- - - BYV38 VOLTAGE RANGE: 800 --- 1000 V CURRENT: 2.0 A FAST RECOVERY RECTIFIER FEATURES DO - 15 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 DO-15,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.014 ounces,0.39 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 by 20%. BYV 37 BYV 38 UNITS Maximum recurrent peak reverse voltage VRRM 800 1000 V Maximum RMS voltage VRMS 560 700 V Maximum DC blocking voltage VDC 800 1000 V Maximum average forw ard rectified current 9.5mm lead length, @TA =75 IF(AV) 2.0 A IFSM 50.0 A VF 1.1 V Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ =125 Maximum instantaneous forw ard voltage @ 1.0 A Maximum reverse current at rated DC blocking voltage @TA=25 @TA=100 5.0 IR 100 A Maximum reverse recovery time (Note1) t rr 300 ns Typical junction capacitance CJ 15 pF Rθ JA 45 K/W TJ - 55---- +150 TSTG - 55---- +150 Typical thermal resistance (Note2) (Note3) Operating junction temperature range Storage temperature range NOTE:1. Measured with I F =0.5A, I R=1A, I rr=0.25A. www.galaxycn.com 2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 3. Thermal resistance f rom junction to ambient,I=10mm,T L =constant. Document Number 0261074 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES BYV37- - - BYV38 FIG.1 -- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM trr 50 N.1. 10 N.1. +0.5A D.U.T. ( - ) 0 PULSE GENERATOR (NOTE2) (+) 50VDC (APPROX) (-) OSCILLOSCOPE (NOTE 1) 1 N.1. -0.25A ( + ) -1.0A 1cm NOTES: 1. RISE TIME = 7ns MAX. INPUT IMPEDANCE = 1M . 22PF 2. RISE TIME = 10ns MAX. SOURCE IMPEDANCE = 50 SET TIME BASEFOR 50/100 ns /cm 100 10 TJ=25 Pulse Width=300 µS 4 2 1.0 0.4 0.2 0 .1 0 . 06 0 . 04 0.02 0.01 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 FIG.3-- FORWARD DERATING CURRENT AVERAGE FORWARD RECTIFIED CURRENT,AMPERES INSTANTANEOUS FORWARD CURRENT AMPERES FIG.2 --TYPICAL FORWARD CHARACTERISTIC 2.0 Single Phase Half Wave 60Hz Resistive or Inductive Load 1.5 1.0 0.5 00 25 INSTANTANEOUS FORWARD VOLTAGE,VOLTS 75 100 125 150 175 200 225 AMBIENT TEMPERATURE, FIG.4-- PEAK FORWARD SURGE CURRENT FIG.7 --TYPICAL JUNCTION CAPACITANCE 200 50 40 8.3ms Single Half Sine-Wave 30 20 10 0 0.1 5 10 50 JUNCTION CAPACITANCE,pF PEAK FORWARD SURGE CURRENT AMPERES 50 100 60 40 20 10 6 4 TJ=25 f=1MHz 2 1 .1 NUMBER OF CYCLES AT 60Hz .2 .4 1.0 2 4 10 20 40 100 REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0261074 BLGALAXY ELECTRICAL 2.