BY127 thru by133 general purpose silicon rectifier reverse voltage - 1250 to 1300 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 construction utilizes void-free molded plastic technique 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 maximum ratings and electrical characteristics 1300 910 1300 volts volts volts symbols units amp amps volts v rrm v rms v dc i (av) i fsm v f 1.0 30.0 1.1 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 typical junction capacitance (note 1) note: 1.measured at 1mhz and applied reverse voltage of 4.0v d.c. 2.thermal resistance from junction to ambient at 0.375 ? (9.5mm)lead length,p.c.b. mounted i r 5.0 50.0 r q ja c j t j , t stg 50.0 15.0 -65 to +175 pf c a u typical thermal resistance (note 2) c/w by133 1250 875 1250 BY127 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%. dimensions in inches and (millimeters) do-41 0.107 (2.7) 0.080 (2.0) dia. 0.034 (0.86) 0.028 (0.71) dia. 1.0 (25.4) min. 0.205 (5.2) 0.160(4.1) 1.0 (25.4) min. www.shunyegroup.com.cn
ratings and characteristic curves BY127 thru by133 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 voleage, 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 tj=150 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) www.shunyegroup.com.cn
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