1n4942g thru 1N4948G fast recovery glass passivated rectifiers reverse voltage - 200 to 1000 volts forward current - 1.0 ampere case : jedec do-41 molded plastic body terminals : plated axial leads, solderable per mil-std-750, method 2026 polarity : color band denotes cathode end mounting position : any weight :0.012 ounce, 0.33 grams the plastic package carries underwriters laboratory flammability classification 94v-0 fast switching for high efficiency low reverse leakage high forward surge current capability high temperature soldering guaranteed: 250 c/10 seconds,0.375 ? (9.5mm) lead length, 5 lbs. (2.3kg) tension features mechanical data dimensions in inches and (millimeters) do-41 0.107(2.7) 0.080(2.0) dia. 0.034(0.86) 0.028(0.70) dia. 1.0 (25.4) min. 0.205(5.2) 0.166(4.2) 1.0 (25.4) min. maximum ratings and electrical characteristics 200 140 200 400 280 400 600 420 600 800 560 800 1000 700 1000 volts volts volts symbols units amp amps volts v rrm v rms v dc i (av) i fsm v f 1.0 30.0 1.3 operating junction and storage temperature range 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 c peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) maximum instantaneous forward voltage at 1.0a maximum dc reverse current t a =25 c at rated dc blocking voltage t a =100 c i r 5.0 50.0 r q ja c j t j , t stg 50.0 15.0 -65 to +150 pf c a m typical thermal resistance (note 3) c/w typical junction capacitance (note 2) maximum reverse recovery time (note 1) t rr 150 250 500 ns 1n 4942g 1n 4944g 1n 4947g 1n 4948g 1n 4946g note: 1.reverse recovery condition i f =0.5a,i r =1.0a,irr=0.25a 2.measured at 1mhz and applied reverse voltage of 4.0v d.c. 3.thermal resistance from junction to ambient at 0.375 ? (9.5mm)lead length,p.c.b. mounted ratings at 25 c ambient temperature unless otherwise specified. single phase half-wave 60hz,resistive or inductive load,for capacitive load current derate by 20%. mdd catalog number mdd electronic
ratings and characteristic curves 1n4942g thru 1N4948G 1.0 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 175 30 25 20 15 10 5.0 0.6 0.8 1.0 1.2 1.4 1.5 0.1 1.0 10 100 0.01 0.1 1 10 100 100 10 1 0.1 reverse voltage,volts t,pulse duration,sec. fig. 5-typical junction capacitance fig. 6-typical transient thermal impedance fig. 3-typical instantaneous forward characteristics number of cycles at 60 hz fig. 2-maximum non-repetitive peak forward surge current fig. 1- forward current derating curve average forward rectified current, amperes instantaneous forward current,amperes junction capacitance, pf peak forward surge current, amperes instantaneous forward voltage, volts single phase half wave 60hz resistive or inductive load 1 10 100 0.01 0.1 1 20 10 t j =25 c 1 10 100 200 0 20 40 60 80 100 1,000 100 10 1 0.1 0.01 tj=100 c tj=25 c percent of peak reverse voltage,% fig. 4-typical reverse characteristics instantaneous reverse current, microamperes transient thermal impedance, c/w ambient temperature, c t j =25 c pulse width=300 m s 1%duty cycle 8.3ms single half sine-wave (jedec method) mdd electronic
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