dimensions in inches and (millimeters) to-220ab features low power loss, high efficiency. high current capability, low vf. high reliability high surge current capability. epitaxial construction. guard-ring for transient protection. for use in low voltage, high frequency inventor, free wheeling, and polarity protection application mechanical data cases: to-220ab molded plastic epoxy: ul 94v-0 rate flame retardant terminals: pure tin plated, lead free. polarity: as marked high temperature soldering guaranteed: 260 o c/10 seconds .25?,(6.35mm) from case. mounting torque: 5 in ? lbs. max. weight: 2.24 grams maximum ratings and electrical characteristics rating at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% type number symbol sr 2020 sr 2030 sr 2040 sr 2050 sr 2060 sr 2090 sr 20100 sr 20150 units maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 90 100 150 v maximum rms voltage v rms 14 21 28 35 42 63 70 105 v maximum dc blocking voltage v dc 20 30 40 50 60 90 100 150 v maximum average forward rectified current see fig. 1 i (av) 20 a peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method ) i fsm 200 a maximum instantaneous forward voltage @ 10a v f 0.55 0.70 0.90 1.00 v 0.5 0.1 maximum d.c. reverse current @ tc=25 o c at rated dc blocking voltage @ tc=100 o c i r 15 10 5.0 ma ma typical junction capacitance (note 2) cj 430 360 pf typical thermal resistance (note 1) r jc 1.0 o c/w operating junction temperature range t j -65 to +125 -65 to +150 o c storage temperature range t stg -65 to +150 o c notes: 1. thermal resistance from junction to case per leg, with heatsink size (4?x6?x0.25?) al-plate. 2. measured at 1mhz and applied reverse voltage of 4.0v d.c. sr2020-SR20150 20.0amp. schottky barrier rectifiers http://www.luguang.cn mail:lge@luguang.cn
fig.3- typical forward characteristics per leg instantaneous forward current. (a) .2 .3 .4 .5 .6 .7 .8 .9 0.1 1.0 10 100 instantaneous forward voltage. (v) s r 2 0 5 0 -2 0 6 0 sr2020-2040 fig.5- typical junction capacitance per leg junction capacitance.(pf) 0.1 1.0 0.4 4 10 40 80100 100 200 400 600 800 2000 1000 4000 reverse voltage. (v) tj=25 c f=1.0mhz vsig=50mvp-p 0 sr2050-150 sr2020-40 s r 2 0 9 0 -2 0 1 0 0 1.0 tj=25 c pulse width-300 s 1% duty cycle 0 ratings and characteristic curves (sr2020 thru SR20150) fig.1- forward current derating curve average forward current. (a) 0 50 100 150 0 4.0 8.0 12.0 16.0 20.0 case temperature. ( c) o s r 2050-150 sr2020-40 fig.2- maximum non-repetitive peak forward surge current per leg peak forward surge current. (a) 1 2 5 10 20 100 50 25 50 200 150 100 250 300 number of cycles at 60hz 8.3ms single half sine wave per leg. (jedge method) tj=tj max. fig.4- typical reverse characteristics per leg instantaneous reverse current .(ma) 0 20 40 60 80 100 120 140 .001 .01 .10 1.0 10 percent of rated peak reverse voltage. (%) tj=100 c 0 tj=25 c 0 fig.6- typical transient thermal impedance per leg transient thermal impedance. ( c/w) o 1 0.01 0.1 10 100 0.1 10.0 1 100 t, pulse duration. (sec) s r 2 0 1 5 0 sr2020-SR20150 20.0amp. schottky barrier rectifiers http://www.luguang.cn mail:lge@luguang.cn
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