creat by art ? ul recognized file # e-326243 ? dual rectifier construction, positive center-tap ? metal silicon junction, majority carrier conduction ? low power loss, high efficiency ? high current capability, low vf ? epitaxial construction mechanical data sr4020pt to-3p 30 / tube c0 maximum ratings and el ectrical characteristics rating at 25 ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% v rrm 20 30 40 50 60 90 100 v v rms 14 21 28 35 42 63 70 v v dc 20 30 40 50 60 90 100 v i f(av) a ma ma ma cj pf r jc o c/w t j o c t stg o c note 2 : measured at 1 mhz and applied reverse voltage of 4.0v d.c. version:e12 ordering information (example) part no. package packing packing code green compound packing code c0g operating junction temperature range - 65 to + 125 - 65 to + 150 storage temperature range - 65 to + 150 note 1 : 300 us pulse width, 2% duty cycle typical junction capacitance (note 2) 1100 600 550 typical thermal resistance per leg 1.2 maximum dc reverse current @ t a =25 o c at rated dc blocking voltage @ t a =100 o c @ t a =125 o c i r 1.0 0.5 30 20 - -10 a maximum instantaneous forward voltage (note 1) @20 a v f 0.55 0.70 0.90 v maximum recurrent peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current 40 peak forward surge current, 8.3 ms single half sine- wave superimposed on rated load (jedec method) i fsm 400 sr 4040 pt sr 4050 pt sr 4060 pt sr 4090 pt sr 40100 pt units ? mounting position: any ? weight: 6.14 grams type number symbol sr 4020 pt sr 4030 pt ? for use in low voltage, high frequency inverters, free wheeling, and polarity protection applications ? high temperature soldering guaranteed: 260 o c/10 seconds, 0.17"(4.3mm) lead lengths at 5 lbs., (2.3kg) tension ? green compound with suffix "g" on packing code & prefix "g" on datecode ? cases: jedec to-3p/to-247ad molded plastic ? terminals: pure tin plat ed, lead free, solderable per mil-std-750, method 2026 ? polarity: as marked sr4020pt - SR40100PT 40.0amps. schottky barrier rectifiers to-3p/to-247ad features ? plastic package has underwriters laboratory flammability classifications 94v-0 ? high surge reliabbility
version:e12 ratings and characteristic curves (sr4020pt thru SR40100PT) 0 10 20 30 40 50 0 50 100 150 average forward a current (a) case temperature ( o c) fig. 1- forward current derating curve sr4050-100pt sr4020-40pt resistive or inductive load with heatsink 100 200 300 400 1 10 100 peak forward surge current (a) number of cycles at 60 hz fig. 2- maximum non-repetitive peak forward surge current per leg 8.3ms single half sine wave per leg. (jedec method) 0.001 0.01 0.1 1 10 0 20 40 60 80 100 120 140 instantaneous reverse current (ma) percent of rated peak reverse voltage (%) fig. 4- typical reverse characteristics per leg ta=25 ta=100 100 1000 10000 0.1 1 10 100 junction capacitance (pf) a reverse voltage (v) fig. 5- typical junction capacitance per leg sr4050pt-40100pt sr4020pt-4040pt 0.1 1 10 100 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 instantaneous forward current (a) instantaneous forward voltage (v) fig. 3- typical forward characteristics per leg sr4050pt-4060pt sr4020pt-4040pt sr4090pt-40100pt ta=25 o c pulse width-300us 1% duty cycle 0.1 1 10 100 0.01 0.1 1 10 100 transient thermal impedance ( /w) t, pulse duration. (sec) fig. 6- typical transient thermal impedance per leg
to-3p c0 dimensions min max min max a 15.90 16.40 0.626 0.646 b 7.90 8.20 0.311 0.323 c 5.70 6.20 0.224 0.244 d 20.80 21.30 0.819 0.839 e 3.50 4.10 0.138 0.161 f 19.70 20.20 0.776 0.795 g - 4.30 - 0.169 h 2.90 3.40 0.114 0.134 i 1.93 2.18 0.076 0.086 j 2.97 3.22 0.117 0.127 k 1.12 1.22 0.044 0.048 l 5.20 5.70 0.205 0.224 m 4.90 5.16 0.193 0.203 n 2.70 3.00 0.106 0.118 o 0.51 0.76 0.020 0.030 p/n = specific device code g = green compound yww = date code unit(inch) marking diagram sr40xxpt 30 / tube c0g note: "xx" is device code from "20" thru "100". dim. unit(mm) ordering information part no. package bulk packing packing code green compound packing code
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