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| CHENMKO ENTERPRISE CO.,LTD FAST RECOVERY RECTIFIER VOLTAGE RANGE 200 - 1000 Volts 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 1N4942PT THRU 1N4948PT CURRENT 1.0 Ampere DO-41 0.034(0.9) DIA. 0.028(0.7) 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 1.0(25.4) MIN. 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%. Dimensions in inches and (millimeters) DO-41 1N4948PT MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Current at TA = 75 C 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 IFSM 30 Amps o SYMBOL VRRM VRMS VDC IO 1N4942PT 1N4944PT 1N4946PT 1N4947PT UNITS Volts Volts Volts Amps 200 140 200 400 280 400 600 420 600 1.0 800 560 800 1000 700 1000 CJ TJ,STG 15 -65 to +150 pF o C ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted ) CHARACTERISTICS 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 SYMBOL VF IR 100 trr 150 250 500 uAmps nSec 2001-6 1N4942PT 1N4944PT 1N4946PT 1N4947PT 1N4948PT UNITS Volts uAmps 1.3 5.0 RATING CHARACTERISTIC CURVES ( 1N4942PT THRU 1N4948PT ) 50 NONINDUCTIVE 10 NONINDUCTIVE trr +0.5A (-) 0 PULSE GENERATOR (NOTE 2) -0.25A AVERAGE FORWARD CURRENT, ( A ) FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC FIG. 2 - TYPICAL FORWARD CURRENT DERATING CURVE 1.0 (+) 25 Vdc (approx) (-) D.U.T 0.5 Single Phase Half Wave 60Hz Resistive or Inductive Load 1 NONINDUCTIVE OSCILLOSCOPE (NOTE 1) (+) -1.0A NOTES: 1. Rise Time = 7 ns max. Input Impedance = 1 megohm. 22 pF. 2. Rise Time = 10 ns max. Source Impedlance= 50 ohms. 1cm SET TIME BASE FOR 50/100 nS/cm 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE ( OC ) FIG. 3 - TYPICAL REVERSE CHARACTERISTICS 100 INSTANTANEOUS FORWARD CURRENT, ( A ) INSTANTANEOUS REVERSE CURRENT, (uA) 10 FIG. 4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS Pulse Width = 300uS 1% Duty Cycle 10 TJ =125oC 1.0 1.0 TJ =75oC 0.1 .1 TJ =25oC TJ =25oC .01 .01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % ) .001 0 .2 .4 .6 .8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, ( V ) 1.8 FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT, ( A ) 35 JUNCTION CAPACITANCE, ( pF ) 30 25 20 15 10 5 0 1 2 5 10 20 NUMBER OF CYCLES AT 60 Hz 50 100 8.3ms Single Half Sine-Wave (JEDEC Method) FIG. 6 - TYPICAL JUNCTION CAPACITANCE 200 100 60 40 20 10 6 4 2 1 .1 .2 .4 1.0 2 4 10 20 REVERSE VOLTAGE, ( V ) 40 100 TJ =25oC |
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