ba157gp thru BA159GP glass passivated junction fast switching rectifier reverse voltage - 400 to 1000 volts forward current - 1.0 ampere features plastic package has underwriters laboratory flammability classification 94v-0 high temperature metallurgically bonded construction for use in high frequency rectifier circuits fast switching for high efficiency glass passivated cavity-free junction capable of meeting environmental standards of mil-s-19500 1.0 ampere operation at t a =55c with no thermal runaway typical i r less than 0.1 m a high temperature soldering guaranteed: 350c/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension mechanical data case: jedec do-204al molded plastic over glass 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,0.3 gram maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. symbols ba157gp ba158gp ba159dgp BA159GP units maximum repetitive peak reverse voltage v rrm 400 600 800 1000 volts maximum rms voltage v rms 280 420 560 700 volts maximum dc blocking voltage v dc 400 600 800 1000 volts maximum average forward rectified current 0.375" (9.5mm) lead length at t a =55c i (av) 1.0 amp peak forward surge current 10ms single half sine-wave superimposed i fsm 20.0 amps on rated load at t a =25c maximum instantaneous forward voltage at 1.0a v f 1.3 volts maximum dc reverse current at rated dc blocking voltage t a =25c i r 5.0 m a maximum reverse recovery time (note 1) t rr 150 250 500 500 ns typical junction capacitance (note 2) c j 15.0 pf typical thermal resistance (note 3) r q ja 55.0 c/w operating junction and storage temperature range t j , t stg -65 to +175 c notes : (1) reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a (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 4/98 0.107 (2.7) 0.080 (2.0) 0.034 (0.86) 0.028 (0.71) dia. 1.0 (25.4) min. 1.0 (25.4) min. 0.205 (5.2) 0.160 (4.1) dia. note: lead diameter is for suffix "e" part numbers 0.026 (0.66) 0.023 (0.58) do-204al dimensions in inches and (millimeters) * glass-plastic encapsulation technique is covered by patent no. 3,996,602 and brazed-lead assembly by patent no. 3,930,306 patented* ?
25 50 75 100 125 150 175 0 0.2 0.4 0.6 0.8 1.0 110100 0 5 10 15 20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0.1 1 10 110100 1 10 100 020406080100 0.01 0.1 1 10 20 0.01 0.1 1 10 100 0.1 1 10 100 ratings and characteristic curves ba157gp thru BA159GP ambient temperature, c average forward rectified current, amperes fig. 2 - maximum non-repetitive peak forward surge current number of cycles at 50 h z peak forward surge current, amperes fig. 3 - typical instantaneous forward characteristics instantaneous forward current, amperes instantaneous forward voltage, volts fig. 5- typical junction capacitance junction capacitance, pf reverse voltage, volts t a =25 c 10ms single half sine-wave at rated load t j =25c pulse width=300 m s 1% duty cycle t j =25c f=1.0 mh z vsig=50mvp-p fig. 1 - forward current derating curve 0.375" (9.5mm) lead length resistive or inductive load fig. 4 - typical reverse characteristics instantaneous reverse current, microamperes percent of rated peak reverse voltage, % t j =125c t j =25c t j =75c fig. 6 - typical transient thermal impedance transient thermal impedance ( c/w) t, pulse duration, sec
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