sr302-lfr thru sr310-lfr 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 3a schottky barrier rectifiers sr302-lfr thru sr310-lfr features z extremely low vf z low stored charge, majority carrier conduction z low power loss / high efficiency z ul 94v0 flame retardant epoxy molding compound z rohs mechanical data z case: transfer molded, do201ad, dimensions in inches and (millimeters) z leads: solderable per mil-std-202,method 208 z polarity: cathode indicated by color band z weight: 1.2 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 sr302-lf r sr303-lf r sr304-lf r sr305-lf r sr306-lf r sr307-lf r sr308-lf r sr309-lf r sr310-lf r units maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 70 80 90 100 v maximum rms voltage v rms 14 21 28 35 42 49 56 63 70 v maximum dc blocking voltage v dc 20 30 40 50 60 70 80 90 100 v maximum average forward rectified current .375 (9.5mm) lead length at ta=55 c i o 3.0 a peak forward surge current, 8.3ms single half sine-wave superimposed on rated load i fsm 80 a typical junction capacitance c j 250 200 pf storage temperature range t stg - 55 to + 150 operating temperature range t op - 55 to + 125 - 55 to + 150 electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol sr302-lf r sr303-lf r sr304-lf r sr305-lf r sr306-lf r sr307-lf r sr308-lf r sr309-lf r sr310-lf r units maximum forward voltage at i o dc v f 0.50 0.74 0.85 v maximum reverse current at 25 i r 2.0 ma notes: 1. measured at 1 mhz and applied reverse voltage 0f 4.0 volts 2. both leads attached to heat sink 20x20x1t(mm) copper plate at lead length 5mm .375(9.5) .335(8.5) 1.0(25.4) min .220(5.6) .197(5.0) 1.0(25.4) min .052(1.3) .048(1.2)
sr302-lfr thru sr310-lfr page: 2 rating and characteristic curves sr302-lf thru sr310-lf fig. 2 - maximum non-repetitive peak forward surge current 80 70 60 50 40 30 20 10 0 peak forward surge current, amperes 1 10 100 number of cycles at 60h z t j =t j max 8.3ms single half sine-wave (jedec method) fig. 3 - typical reverse characteristics 10 1.0 0.1 .01 .001 instantaneous reverse current, milliamperes 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage, (%) t j =100 t j =75 t j =25 fig. 4 - typical instantaneous forward characteristics 100 10 1.0 0.1 instantaneous forward current, amperes 0 .2 .4 .6 .8 1.0 1.2 1.4 instantaneous forward voltage volts t j =25 pulse width=300us 2% duty cycle sr305-lf~sr306-lf sr302-lf~sr304-lf sr307-lf~sr310-lf fig. 5 - typical junction capacitance 1000 600 400 200 100 60 40 20 10 capacitance, p f 0.1 0.4 1.0 4 10 40 reverse voltage, volts t j =25 sr305-lf~sr310-lf sr302-lf~sr304-lf fig. 1 - forward current derating curve 4.0 3.0 2.0 1.0 0 average forward current, amperes 0 10 50 100 120 150 case temperature, resistive or inductive load 0.375? (9.5mm) lead length sr302-lf~sr304-lf sr305-lf~sr310-lf
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