LESHAN RADIO COMPANY, LTD. 1F1 – 1F7 1A 1A FAST RECOVERY DIODES TYPE Maximum Peak Reverse Voltage Maximum Average Maximum Rectified Current Forward Peak @ Half-Wave Surge Current @ Resistive Load 60Hz 8.3ms Superimposed PRV I O@ T L V PK 1F1 1F2 1F3 1F4 1F5 1F6 1F7 50 100 200 400 600 800 1000 A AV 1.0 I FM (Surge) ºC 25 Maximum Reverse Current @ PRV @ TA=25ºC I R µAdc A PK 25 5.0 Maximum Forward Voltage @ TA=25ºC Maximum Reverse Recovery Time I FM V FM Trr A PK V PK ns 1.0 1.3 150 150 150 150 250 500 500 Package Dimensions R–1 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 .787(20.0) MIN .126(3.2) .106(2.7) .025(0.65) DIA .021(0.55) .787(20.0) MIN .102(2.6) DIA .091(2.3) R–1 12A–1/2 LESHAN RADIO COMPANY, LTD. 1F1-1F7 RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES FIG.1–TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 10 Ω NONINDUCTIVE 1Ω NON. INDUCTIVE Trr +0.5A (-) D.U.T. (+) 25Vdc (APPROX) (-) AVERAGE FORWARD CURRENT,(A) 50 Ω NONINDUCTIVE FIG. 2 – TYPICAL FORWARD CURRENT DERATING CURVE PULSE G E N E R AT O R (NOTE 2) OSCILLOSCOPE (NOTE 1) 0 -0.25A (+) NOTES:1.Rise Time=7ns max. Input Impedance=1megohm.22pF. 2.Rise Time=10ns max. Source Impedance=50 ohms. -1.0A 1.0 Single Phase Half Wave 60Hz Resistive or Inductive Load .8 .6 .4 .2 0 0 SET TIME BASE FOR 50/100ns/cm 1cm 50 100 150 175 AMBIENT TEMPER ATURE, (ºC) FIG. 4 – TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG. 3 – TYPICAL REVERSE CHARACTERISTICS 20 10 INSTANTANEOUS FORWARD CURRENT, (A) INSTANTANEOUS REVERSE CURRENT (µA) 10 TJ =50ºC 1.0 TJ =25ºC .1 TJ =25ºC 1.0 0.1 Pulse Width=300µs 1% Duty Cycle .01 .01 0 20 40 60 80 100 120 .4 140 .6 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) 1.0 1.2 1.4 1.6 1.8 INSTANTANEOUS FORWARD VOLTAGE,(V) FIG. 5 – MAXINUM NON-REPETITIVE FOWARD SURGE CURRENT FIG. 6 – TYPICAL JUNCTION CAPACITANCE 200 200 8.3ms Single Half Sine-Wave (JEDEC Method) 100 100 60 JUNCTION CAPACITANCE,(pF) PEAK FORWARD SURGE CURRENT,(A) .8 50 30 20 40 20 10 TJ =25ºC 6 4 2 10 1 1 5 10 50 100 .1 .2 .4 1.0 2 4 10 20 40 100 NUMBER OF CYCLES AT 60Hz REVERSE VOLTAGE,(V) 12A–2/2