1N4942

FAST RECOVER RECTIFIER 1N4942 THRU 1N4948 FEATURES • • • • • VOLTAGE RANGE CURRENT 200 to 1000 Volts 1.0 Ampere DO-41 .034(0.9) .028(0.7) 1.0(25.4) MIN. DIA. 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 .205(5.2) .160(4.2) .107(2.7) DIA. .080(2.0) 1.0(25.4) MIN. MECHANICAL DATA • • • • • • 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 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 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 T A = 25℃ TA = 100℃ VRRM VRMS VDC I(AV) IFSM VF IR trr CJ RθJA TJ TSTG 1N 4942 200 140 200 1N 4944 400 280 400 1N 4946 600 420 600 1.0 30 1.3 5.0 100 250 15 50 1N 4947 800 560 800 1N 4948 1000 700 1000 UNITS Volts Volts Volts Amp Amps Volts µA Maximum Reverse Recovery Time (Note 3) T J=25℃ Typical Junction Capacitance (Note 1) Typical Thermal Resistance (Note 2) Operating Junction Temperature Range Storage Temperature Range 150 500 ns pF ℃/W ℃ ℃ (-55 to +150) (-55 to +150) 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.PS-PFS.COM FAST RECOVER RECTIFIER 1N4942 THRU 1N4948 RATING AND CHRACTERISTIC CURVES 1N4942 THRU FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 1.2 AVERAGE FORWARD CURRENT, (A) 30 PEAK FORWARD SURGE 1.0 8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tjmax 0.8 CURRENT, (A) 20 0.6 0.4 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375"(9.5mm)Lead Length 10 0.2 0 0 25 50 75 100 125 150 175 0 1 2 4 6 8 10 20 40 60 80 100 AMBIENT TEMPERATURE, (° C) NUMBER OF CYCLES AT 60 Hz FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, 20 20 FIG.4-TYPICAL REVERSE CHARACTERISTICS 10 10 INSTANTANEOUS REVERSE CURRENT, (mA) Tj =125° C 10 (A) 1.0 Tj =75 ° C 0.1 0.1 Tj =25 ° C Pulse Width=300us 1% Duty Cycle Tj =25° C 0.01 0 20 40 60 80 100 120 140 0.01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 INSTANTANEOUS FORWARD VOLTAGE,(V) PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) FIG.5-TYPICAL JUNCTION CAPACITANCE FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE REXOVERY TIME CHARACTERISTIC 100 CAPACITANCE,(pF) +0.5A 50 Ω NONINDUCTIVE 10 Ω NONINDUCTIVE (-) (+) 25 Vdc （approx ） (-) 0 0.25A D. U.T 10 PULSE GENERATIOR (NOTE 2) 1Ω NON INDUCTIVE OSCILLOSCOPE (NOTE 1) -1.0A TJ=25° C F=1MHz Vsig=50mVp-p NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF 2.Rise time=10ns max.Source Impedance=50 ohms SET TIME BASE FOR 50 /100NS /cm 1 0.1 1.0 10 100 REVERSE VOLTAGE,(V) Web Site: WWW.PS-PFS.COM