1N4942PT CHENMKO ENTERPRISE CO.,LTD THRU FAST RECOVERY RECTIFIER VOLTAGE RANGE 200 - 1000 Volts 1N4948PT CURRENT 1.0 Ampere FEATURES * Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * High switching capability * Low leakage * Low forward voltage drop * High current capability * High surge current capability DO-41 0.034(0.9) DIA. 0.028(0.7) 1.0(25.4) MIN. MECHANICAL DATA Case: JEDEC DO-41 molded plastic Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.33 gram 0.205(5.2) 0.166(4.2) 0.107(2.7) DIA. 0.080(2.0) 1.0(25.4) MIN. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60 HZ, resistive or inductive load. For capacitive load, derate current by 20%. DO-41 Dimensions in inches and (millimeters) MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) 1N4946PT 1N4947PT 1N4948PT UNITS Maximum Recurrent Peak Reverse Voltage RATINGS SYMBOL VRRM 200 400 600 800 1000 Volts Maximum RMS Voltage VRMS 140 280 420 560 700 Volts Maximum DC Blocking Voltage VDC 200 400 600 800 1000 Volts o Maximum Average Forward Current at TA = 75 C 1N4942PT 1N4944PT IO 1.0 Amps IFSM 30 Amps CJ 15 pF TJ,STG -65 to +150 Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 1) Operating and Storage Temperature Range o C ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS SYMBOL Maximum Instantaneous Forward Voltage at 1.0 A DC Maximum DC Reverse Current at Rated DC Blocking Voltage at TA = 25oC Maximum Full Load Reverse Current Average, Full Cycle 0.375" (9.5mm) lead length at TL = 55oC Maximum Reverse Recovery Time (Note 2) NOTES : 1. Measured at 1.0 MHZ and applied reverse voltage of 4.0 volts 2. Test Conditions : IF = 0.5 A, IR = -1.0 A, IRR = -0.25 A 1N4942PT VF 1N4944PT 1N4946PT 1N4947PT 1N4948PT UNITS 1.3 Volts 5.0 uAmps IR 100 trr 150 uAmps 250 500 nSec 2001-6 FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 50 NONINDUCTIVE 10 NONINDUCTIVE trr +0.5A (-) D.U.T (+) 0 PULSE GENERATOR (NOTE 2) 25 Vdc (approx) (-) 1 NONINDUCTIVE OSCILLOSCOPE (NOTE 1) -0.25A (+) -1.0A 1cm NOTES: 1. Rise Time = 7 ns max. Input Impedance = 1 megohm. 22 pF. 2. Rise Time = 10 ns max. Source Impedlance= 50 ohms. SET TIME BASE FOR 50/100 nS/cm FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 1.0 0.5 Single Phase Half Wave 60Hz Resistive or Inductive Load 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE ( OC ) 10 INSTANTANEOUS FORWARD CURRENT, ( A ) INSTANTANEOUS REVERSE CURRENT, (uA) FIG. 2 - TYPICAL FORWARD CURRENT DERATING CURVE FIG. 4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 100 10 TJ =125oC 1.0 TJ =75oC .1 TJ =25oC Pulse Width = 300uS 1% Duty Cycle 1.0 0.1 TJ =25oC .01 .001 .01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) 0 .2 .4 .6 .8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, ( V ) FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 1.8 FIG. 6 - TYPICAL JUNCTION CAPACITANCE 35 200 30 JUNCTION CAPACITANCE, ( pF ) PEAK FORWARD SURGE CURRENT, ( A ) AVERAGE FORWARD CURRENT, ( A ) RATING CHARACTERISTIC CURVES ( 1N4942PT THRU 1N4948PT ) 8.3ms Single Half Sine-Wave (JEDEC Method) 25 20 15 10 5 0 100 60 40 20 10 6 4 TJ =25oC 2 1 1 2 5 10 20 NUMBER OF CYCLES AT 60 Hz 50 100 .1 .2 .4 1.0 2 4 10 20 REVERSE VOLTAGE, ( V ) 40 100