USF21 RECTRON THRU SEMICONDUCTOR TECHNICAL SPECIFICATION USF24 GLASS PASSIVATED SUPER FAST RECTIFIER VOLTAGE RANGE 50 to 200 Volts CURRENT 2.0 Amperes FEATURES * * * * * * * High reliability Low leakage Low forward voltage High current capability Super fast switching speed High surge capability Good for switching mode circuit DO-15 MECHANICAL DATA * * * * * Case: Molded plastic Epoxy: Device has UL flammability classification 94V-O Lead: MIL-STD-202E method 208C guaranteed Mounting position: Any Weight: 0.38 gram .034 (0.9) DIA. .028 (0.7) 1.0 (25.4) MIN. .300 (7.6) .230 (5.8) .140 (3.6) DIA. .104 (2.6) 1.0 (25.4) MIN. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. Dimensions in inches and (millimeters) MAXIMUM RATINGS (At T A = 25 oC unless otherwise noted) SYMBOL SF21 SF22 SF23 SF24 UNITS Maximum Recurrent Peak Reverse Voltage VRRM 50 100 150 200 Volts Maximum RMS Volts VRMS 35 70 105 140 Volts VDC 50 100 150 200 Volts RATINGS Maximum DC Blocking Voltage Maximum Average Forward Current T A = 55 oC Peak Forward Surge Current IFM (surge):8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range IO 2.0 Amps I FSM 75 Amps CJ 15 T J , T STG -55 to + 150 pF 0 C ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted) CHARACTERISTICS Maximum Forward Voltage at 2.0A DC SYMBOL VF Maximum DC Reverse Current @T A = 25 o C at Rated DC Blocking Voltage @T A =100 o C Maximum Reverse Recovery Time (Note 1) NOTES : 1. Test Conditions: IF=0.5A, IR=-1.0A, IRR=-0.25A. 2. Measured at 1 MHZ and applied reverse voltage of 4.0 volts. IR SF21 SF22 SF23 0.90 SF24 UNITS Volts 10 uAmps 350 trr 20 nSec 2002-4 AVERAGE FORWARD CURENT, (A) RATING AND CHARACTERISTIC CURVES ( USF21 THRU USF24 ) FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 50 NONINDUCTIVE 10 NONINDUCTIVE trr +0.5A (-) D.U.T (+) 25 Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1 NONINDUCTIVE OSCILLOSCOPE (NOTE 1) 0 -0.25A (+) -1.0A 1cm NOTES:1 Rise Time = 7ns max. Input Impedance = 2.0 100 TJ = 150 10 TJ = 100 1.0 TJ = 25 Single Phase Half Wave 60Hz Resistive or Inductive Load 1.0 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE ( FIG. 4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, (A) INSTANTANEOUS REVERSE CURRENT, (uA) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 100 10 TJ = 25 1 Pulse Width = 300uS 1% Duty Cycle .1 .01 .01 0 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) PEAK FORWARD SURGE CURRENT, (A) 3.0 SET TIME BASE FOR 10 ns/cm 1 megohm. 22pF. 2. Rise Time = 10ns max. Source Impedance = 50 ohms. .1 FIG. 2 - TYPICAL FORWARD CURRENT DERATING CURVE FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 90 8.3ms Single Half Sine-Wave (JEDEC Method) 75 60 45 30 15 0 1 2 5 10 20 50 NUMBER OF CYCLES AT 60Hz FIG. 6 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, (pF) 105 100 .2 .4 .6 .8 1.0 1.2 1.4 INSTANTANEOUS FORWARD VOLTAGE, (V) 200 100 60 40 20 10 6 4 TJ = 25 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 REVERSE VOLTAGE, ( V ) RECTRON )