srf20-03ct thru srf20-10c page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 20a dual schottky barrier rectifiers srf20-03ct thru srf20-10ct case : ito-220ab( srf20-xx) , fully insulated package features mechanical data z extremely low vf z case: transfer molded z low stored charge, majority carrier conduction z leads: solderable per mil-std-202,method 208 z low power loss / high efficiency z polarity: as marked z ul 94v0 flame retardant epoxy molding compound z weight 2.05 grams maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% ratings symbol srf20 -03ct srf20 -035ct srf20 -04ct srf20 -045ct srf20 -05ct srf20 -06ct srf20 -08ct srf20 -09ct srf20 -10ct units maximum recurrent peak reverse voltage v rrm 30 35 40 45 50 60 80 90 100 v maximum rms voltage v rms 21 24 28 31 35 42 56 63 70 v maximum dc blocking voltage v dc 30 35 40 45 50 60 80 90 100 v maximum average forward rectified current see fig.1 per leg i o 20 10 a peak forward surge current, 8.3ms single half sine-wave superimposed on rated load per leg i fsm 150 a storage temperature range t stg - 55 to + 150 operating temperature range t op - 55 to + 125 electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol srf20 -03ct srf20 -035ct srf20 -04ct srf20 -045ct srf20 -05ct srf20 -06ct srf20 -08ct srf20 -09ct srf20 -10ct units maximum forward voltage at 10a per leg v f 0.60 0.80 0.85 v maximum reverse current at 25 per leg (note 1) i r 5.0 ma maximum reverse current at 100 per leg (note 1) i r 50.0 ma thermal characteristics (t c =25 unless otherwise noted ) parameter symbol srf20 units typical thermal resistance junction to case per leg r jc 4.0 /w notes U 1. pulse test: 300s pulse width, 1% duty cycle millimeters min max b c d e f g h i j k l m o 9.72 6.30 14.50 13.00 - 2.41 - - - - 2.5 - 10.27 6.90 15.50 13.80 4.1 2.67 1.52 0.9 4.8 3.1 2.9 0.8 ? 3.4 c f h b d g e 1 2 3 o i pi n 1 pin 3 pin 2 case j m k l
srf20-03ct thru srf20-10c page: 2 ratings and characteristic curves srf20-03ct thru srf20-10ct fig. 1 - forward derating curve 20 16 12 8.0 4.0 0 fig. 2 - peak forward surge current 1 10 100 number of cycles at 60h z 300 250 200 150 100 50 0 peak forward surge current, amperes 0 25 50 75 100 125 150 case temperature ( ) fig. 3 - typical reverse characteristics 10 1.0 0.1 .01 .001 0 20 40 60 80 100 120 140 instantaneous reverse current (ma) average forward rectified current amperes percent of rated voltage peak reverse voltage fig. 4 - typical forward characteristic per leg 100 10 1 0.1 0 0 . 2 0 . 6 1 . 0 1 . 4 1 . 8 2 . 0 forward voltage (volts) instantaneous forward current amperes srf20-03ct~20-045ct srf20-05ct~20-10ct srf20-03ct~20-045ct srf20-05ct~20-10ct t j =25 t j =75 t j =125
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