1N4942 THRU 1N4948 GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER Reverse Voltage - 200 to 1000 Volts * FEATURES DO-204AP ED T EN T PA 0.034 (0.86) 0.028 (0.71) DIA. 1.0 (25.4) MIN. 0.240 (6.1) MAX. 0.150 (3.8) 0.100 (2.5) DIA. Forward Current - 1. 0 Ampere 1.0 (25.4) MIN. ♦ High temperature metallurgically bonded construction ♦ Hermetically sealed package ♦ Glass passivated cavity-free junction ♦ 1.0 Ampere operation at TA=55°C with no thermal runaway ♦ Typical IR less than 0.1µA ♦ Capable of meeting environmental standards of MIL-S-19500 ♦ Fast switching for high efficiency ♦ High temperature soldering guaranteed: 350°C/10 seconds, 0.375” (9.5mm) lead length, 5 lbs. (2.3kg) tension MECHANICAL DATA Dimensions in inches and (millimeters) *Brazed-lead assembly is covered by Patent No. 3,930,306 Case: JEDEC DO-204AP solid glass body Terminals: Solder plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Weight: 0.02 ounce, 0.56 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. SYMBOLS 1N4942 1N4944 1N4946 1N4947 1N4948 UNITS VRRM 200 400 600 800 1000 Volts VRMS 140 280 420 560 700 Volts * Maximum DC blocking voltage VDC 200 400 600 800 1000 Volts * Minimum reverse breakdown voltage at 50µA V(BR) 220 440 660 880 1100 Volts * Maximum average forward rectified current 0.375” (9.5mm) lead length at TA=55°C l(AV) 1.0 Amp * Peak forward surge current 8.3ms single halt sine-wave superimposed on rated load (JEDEC Method) IFSM 25.0 Amps * Maximum instantaneous forward voltage at: 1.0A at 2.0A, TA=-40°C VF 1.3 2.5 Volts * Maximum DC reverse current at Rated DC blocking voltage IR 1.0 500.0 µA * Maximum recurrent peak reverse voltage Maximum RMS voltage TA=25°C TA=175°C * Maximum reverse recovery time (NOTE 1) Typical junction capacitance (NOTE 2) Typical thermal resistance (NOTE 3) * Operating junction and storage temperature range trr 250 500 ns CJ 15.0 pF RΘJA 55.0 °C/W TJ, TSTG -65 to +175 °C NOTES: (1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=25A (2) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts (3) Thermal resistance from junction to ambient at 0.375” (9.5mm) lead length, P.C.B. mounted *JEDEC registered values 4/98 150 RATINGS AND CHARACTERISTIC CURVES 1N4942 THRU 1N4948 FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG. 1 - FORWARD CURRENT DERATING CURVE 30 RESISTIVE OR INDUCTIVE LOAD 0.375" (9.5mm) LEAD LENGTH 0.75 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD RECTIFIED CURRENT, AMPERES 1.0 0.5 0.25 0 25 50 75 100 125 150 TJ=TJ max. 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 20 10 0 175 1 100 10 AMBIENT TEMPERATURE, °C NUMBER OF CYCLES AT 60 Hz FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG. 4 - TYPICAL REVERSE CHARACTERISTICS 20 10 1 TJ=25°C PULSE WIDTH=300µs 1% DUTY CYCLE 0.1 0.01 0.4 0.6 0.8 1.0 1.2 1.4 INSTANTANEOUS REVERSE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT, AMPERES 10 TJ=25°C 1 TJ=75°C 0.1 1.6 TJ=25°C 0.01 0 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 20 40 60 80 PERCENT OF RATED PEAK REVERSE VOLTAGE, % FIG. 5 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, pF 30 TJ =25°C f=1.0 MHz Vsig=50mVp-p 10 1 1 10 REVERSE VOLTAGE, VOLTS 100 100