FAST RECOVER RECTIFIER VOLTAGE RANGE CURRENT 1N4942 THRU 1N4948 200 to 1000 Volts 1.0 Ampere DO-41 FEATURES • • • • • Low coat construction Fast switching for high efficency. Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 260℃/10 secods/.375”(9.5mm)lead length at 5 lbs(2.3kg) tension .034(0.9) .028(0.7) 1.0(25.4) MIN. .205(5.2) .160(4.2) MECHANICAL DATA • • • • • • DIA. .107(2.7) DIA. .080(2.0) Case: Transfer molded plastic Epoxy: UL94V-O rate flame retardant Polarity: Color band denotes cathode end Lead: Plated axial lead, solderable per MIL-STD-202E method 208C Mounting position: Any Weight: 0.012 ounce, 0.33 grams 1.0(25.4) MIN. Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS • • • Ratings at 25OC ambient temperature unless otherwise specified Single Phase, half wave, 60Hz, resistive or inductive load For capacitive load derate current by 20% SYMBOLS VRRM VRMS VDC Maximum Repetitive Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current 0.375”(9.5mm) lead length at T A= 75℃ Peak Forward Surge Current 8.3mS single half sine wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage @ 1.0A Maximum DC Reverse Current at Rated DC Blocking Voltage TA = 25℃ TA = 100℃ Maximum Reverse Recovery Time (Note 3) T J=25℃ Typical Junction Capacitance (Note 1) 1N 4942 200 140 200 1N 4944 400 280 400 1N 4946 600 420 600 1N 4947 800 560 800 1N 4948 1000 700 1000 UNITS Volts Volts Volts I(AV) 1.0 Amp IFSM 30 Amps VF 1.3 5.0 100 250 15 Volts IR trr CJ 150 µA 500 ns pF Typical Thermal Resistance (Note 2) RθJA 50 ℃/W Operating Junction Temperature Range TJ TSTG (-55 to +150) (-55 to +150) ℃ Storage Temperature Range Notes: 1.Measured at 1.0MHz and Applied Reverse Voltage of 4.0Volits. 2 Thermal Resistance from junction to Ambient at .375”(9.5mm)lead length, P.C.board mounted. 3.Reverse Recovery Test Conditions:If=0.5A,Ir=1.0A,Irr=0.25A Web Site: www.hkmic.com ℃ FAST RECOVER RECTIFIER VOLTAGE RANGE CURRENT 1N4942 THRU 1N4948 200 to 1000 Volts 1.0 Ampere RATING AND CHRACTERISTIC CURVES 1N4942 THRU FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 1.2 PEAK FORWARD SURGE 0.8 0.6 0.4 Single Phase Half Wave 60Hz Resistive or 0.2 Inductive Load 0.375"(9.5mm)Lead Length 0 0 25 50 100 75 150 125 8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tjmax CURRENT, (A) AVERAGE FORWARD CURRENT, (A) 30 1.0 20 10 0 175 1 2 4 6 8 10 40 20 60 80 100 NUMBER OF CYCLES AT 60 Hz AMBIENT TEMPERATURE, (° C) FIG.4-TYPICAL REVERSE CHARACTERISTICS FIG.3-TYPICAL INSTANTANEOUS 20 10 INSTANTANEOUS REVERSE CURRENT, (mA) 10 (A) INSTANTANEOUS FORWARD CURRENT, FORWARD CHARACTERISTICS 20 1.0 0.1 Tj =25° C Pulse Width=300us 1% Duty Cycle 0.01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Tj =125° C 10 Tj =75° C 0.1 Tj =25° C 0.01 0 INSTANTANEOUS FORWARD VOLTAGE,(V) 20 40 60 80 140 120 100 PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) FIG.5-TYPICAL JUNCTION CAPACITANCE FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE REXOVERY TIME CHARACTERISTIC CAPACITANCE,(pF) 100 +0.5A 50Ω NONINDUCTIVE 10Ω NONINDUCTIVE (-) (+) 25 Vdc （approx） (-) 10 D.U.T 1Ω NON INDUCTIVE PULSE GENERATIOR (NOTE 2) 0 0.25A OSCILLOSCOPE (NOTE 1) -1.0A TJ=25° C F=1MHz NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF 2.Rise time=10ns max.Source Impedance=50 ohms Vsig=50mVp-p 1 0.1 1.0 10 100 REVERSE VOLTAGE,(V) Web Site: www.hkmic.com SET TIME BASE FOR 50 /100NS /cm