dimensions in inches and (millimeters) ito-220ab features for surface mounted application low power loss, high efficiency high current capability, low vf high reliability epitaxial construction guard-ring for transient protection mechanical data cases: ito-220ab molded plastic epoxy: ul 94v-0 rate flame retardant polarity: as marked high temperature soldering guaranteed: 260 o c/10 seconds .25?,(6.35mm) from case. weight: 2.24 grams mounting torque: 5 in ? 1bs. max. 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 srf 2020 srf 2030 srf 2040 srf 2050 srf 2060 srf 2090 srf 20100 srf 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 @ 10.0a v f 0.55 0.70 0.92 1.02 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 440 300 280 pf typical thermal resistance (note 1) r jc 1.5 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 . srf2020-srf20150 isolated 20.0amp. schottky barrier rectifiers http://www.luguang.cn mail:lge@luguang.cn
ratings and characteristic curves (srf2020 thru srf20150) version: b07 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 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. tj=100 c 0 tj=25 c 0 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. (%) 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 f2050-150 srf2020-40 tj=25 c f=1.0mhz vsig=50mvp-p 0 srf2020-2040 s r f 2 0 5 0 -2 0 6 0 srf2020-2040 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) 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) srf2090-20100 tj=25 c pulse width-300 s 1% duty cycle o srf2090-20150 SRF2050-2060 1.0 srf20150 srf2020-srf20150 isolated 20.0amp. schottky barrier rectifiers http://www.luguang.cn mail:lge@luguang.cn
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