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| BL FEATURES Low cost Low leakage GALAXY ELECTRICAL 31DF3 --- 31DF4 VOLTAGE RANGE: 300 --- 400 V CURRENT: 1.5 A SUPER FAST RECTIFIERS DO - 27 Diffused junction Low forward voltage drop High current capability Easily cleaned with alcohol,Isopropanol and sim ilar solvents MECHANICAL DATA Case:JEDEC DO--27,m olded plastic Terminals: Axial lead ,solderable per MIL-STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.041ounces,1.15 gram s Mounting position: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 am bient tem perature unless otherwise specified. Single phase,half wave,50Hz,resistive or inductive load. For capacitive load,derate by 20%. 31DF3 Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forw ard rectified current 9.5mm lead length, @TA =75 31DF4 400 280 400 1.5 UNITS V V V A V RRM VRMS V DC IF(AV) 300 210 300 Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ =125 IFSM 125.0 A Maximum instantaneous forw ard voltage @ IF=3A Maximum reverse current at rated DC blocking voltage Maximum reverse recovery time Typical junction capacitance Typical thermal resistance @TA =25 @TA =100 (Note1) (Note2) (Note3) VF IR t rr CJ RJA TJ TSTG 1.25 5.0 50.0 30 90 34 - 55 ----- + 150 - 55 ----- + 150 V A ns pF /W 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 1.0MH Z and applied rev erse v oltage of 4.0V DC. 3. Thermal resistance f rom junction to ambient. Document Number 0264017 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES 50 N 1. 10 N 1. t rr 31DF3 --- 31DF4 FIG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC + 0 .5A D.U.T. (+) 25VDC (approx) (-) 1 NONINDUCTIVE PULSE GENERATOR (NOTE2) OSCILLOSCOPE (NOTE 1) 0 -0.25 A -1.0A 1cm NOTES:1.RISE TIM = 7ns M .INPUT IM E AX PEDANCE =1M . 22pF. JJJJ 2.RISE TIM =10ns M .SOURCE IM E AX PEDANCE=50 . SE TIM BASEFO 10 ns/cm TE R FIG.2 -- TYPICAL FORWARD CHARACTERISTIC INSTANTANEOUS FORWARD CURRENT AMPERES AVERAGE FORWARD CURRENT AMPERES FIG.3 -- FORWARD DERATING CURVE 10 4 2 1 0.4 0.2 0.1 0.04 0.02 0.01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1.5 1.0 0.5 Single Phase Half Wave 60HZ Resistive or Inductive Load 0.375"(9.5mm)Lead Length 0 25 50 7 5 100 1 25 150 TJ=25 Pulse Width=300s 0 INSTANTANEOUS FORWARD VOLTAGE, VOLTS AMBIENT TEMPERATURE, FIG.4-- TYPICAL JUNCTION CAPACITANCE 1000 600 400 200 100 60 40 20 10 0.1 0.2 0.4 1 2 4 10 20 40 100 FIG.5-- PEAK FORWORD SURGE CURRENT PEAKFORWORDSURGECURRENT AMPERES 150 125 100 JUNCTION CAPACITANCE, pF 75 TJ=25 f=1.0MHz 50 25 8.3ms Single Half Sine - Wave 0 1 5 10 50 100 REVERSE VOLTAGE, VOLTS NUMBER OF CYCLES AT 60HZ www.galaxycn.com Document Number 0264017 BLGALAXY ELECTRICAL 2. |
Price & Availability of 31DF4
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