1N4942

LESHAN RADIO COMPANY, LTD. 1N4942 – 1N4948 FAST GPP DIODES Maximum Average Maximum Rectified Current Forward Peak @ Half-Wave Surge Current @ Resistive Load 60Hz 8.3ms Superimposed I O@ T L A AV ºC I FM (Surge) A PK Maximum Reverse Current @ PRV @ TA=25ºC I R TYPE Maximum Peak Reverse Voltage PRV V PK Maximum Forward Voltage @ TA=25ºC I FM A PK V FM V PK Maximum Reverse Recovery Time Trr ns Package Dimensions µAdc 1N4942 1N4944 1N4946 1N4947 1N4948 200 400 600 800 1000 1.0 75 25 5.0 1.0 1.3 150 150 250 250 500 DO – 41 Trr I F = 0.5A, I R = 1.0A, I RR = 0.25A Trr Test Conditions: I F = 0.5A, I R = 1.0A, I RR = 0.25A 1.0(25.4) MIN .205(5.2) .166(4.2) 1.0(25.4) MIN .034(0.9) .028(0.7) DIA .107(2.7) DIA .080(2.0) DO – 41 37A–1/2 LESHAN RADIO COMPANY, LTD. 1N4942-1N4948 GPP RATING & CHARACTERISTIC CURVES OF FAST GPP DIODE FIG.1–TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 50 Ω NONINDUCTIVE 10 Ω NONINDUCTIVE D.U.T. (-) PULSE G E N E R AT O R (NOTE 2) (+) 0 -0.25A FIG. 2 – TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT,(A) 1.25 1.00 0.75 0.50 0.25 0 25 50 75 100 125 150 175 Single Phase Half Wave 60Hz Resistive or Inductive Load +0.5A Trr (+) 25Vdc (APPROX) (-) 1Ω NON. INDUCTIVE OSCILLOSCOPE (NOTE 1) NOTES:1.Rise Time=7ns max. Input Impedance=1megohm.22pF. 2.Rise Time=10ns max. Source Impedance=50 ohms. -1.0A SET TIME BASE FOR 50/100ns/cm 1cm AMBIENT TEMPER ATURE, (ºC) FIG. 3 – TYPICAL REVERSE CHARACTERISTICS 100 20 10 INSTANTANEOUS REVERSE CURRENT (µA) FIG. 4 – TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS TJ =150ºC INSTANTANEOUS FORWARD CURRENT, (A) 10 TJ =25ºC 1.0 TJ =50ºC 1.0 .1 TJ =25ºC Pulse Width=300µs 1% Duty Cycle 0 .4 .6 .8 1.0 1.2 1.4 1.6 .01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 5 – MAXINUM NON-REPETITIVE FOWARD SURGE CURRENT 50 8.3ms Single Half Sine-Wave (JEDEC Method) JUNCTION CAPACITANCE,(pF) FIG. 6 – TYPICAL JUNCTION CAPACITANCE 200 100 PEAK FORWARD SURGE CURRENT,(A) 60 40 20 10 TJ =25ºC 6 4 2 1 40 30 20 10 0 1 5 10 50 100 .1 .2 .4 1.0 2 4 10 20 40 100 NUMBER OF CYCLES AT 60Hz REVERSE VOLTAGE,(V) 37A–2/2