creat by art ? high efficiency, low vf ? high current capability ? high reliability ? high surge current capability ? low power loss sf21 do-15 1.5k / ammo box 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% symbol sf 21 sf 22 sf 23 sf 24 sf 25 sf 26 sf 27 sf 28 units v rrm 50 100 150 200 300 400 500 600 v v rms 35 70 105 140 210 280 350 420 v v dc 50 100 150 200 300 400 500 600 v i f(av) a ua ua trr ns cj pf r ja o c/w t j o c t stg o c sf21 - SF28 2.0amps. super fast rectifiers features ? for use in low voltage, high frequency inverter, free wheeling, and polarity protection application ? green compound with suffix "g" on packing code & prefix "g" on datecode a0g packing code a0 mechanical data ? cases: molded plastic ? epoxy: ul 94v-0 rate flame retardant ? lead: pure tin plated, lead free, solderable per mil-std-202, method 208 guaranteed ? polarity: color band denotes cathode ? high temperature soldering guaranteed: 260 /10 seconds/.375",(9.5mm) lead lengths at 5 lbs., (2.3kg) tension ? weight: 0.40 grams type number maximum recurrent peak reverse voltage maximum rms voltage maximum dc blocking voltage maximum average forward rectified current 2 peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method) i fsm 50 a maximum instantaneous forward voltage (note 1) @ 2 a v f 0.95 1.3 1.7 v maximum dc reverse current at rated @ t a =25 dc blocking voltage @ t a =100 i r 5 100 maximum reverse recovery time (note 2) 35 typical junction capacitance (note 3) 40 30 typical thermal resistance 65 operating temperature range - 65 to + 125 storage temperature range - 65 to + 150 note 1: pulse test with pw=300 usec, 1% duty cycle note 2: reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a note 3: measured at 1 mhz and applied reverse voltage of 4.0v d.c. version:d13 do-15 ordering information (example) part no. package packing inner tape packing code (green) 52mm
version:d13 ratings and characteristic curves (sf21 thru SF28) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 255075100125150175 average forward a current (a) ambient temperature ( o c) fig.1- maximum forward current derating curve resistive or inductive load with heatsink 0 10 20 30 40 50 60 110100 peak forward surge current (a) number of cycles at 60 hz fig. 3- maximum non-repetitive forward surge current 8.3ms single half sine wave jedec method 0.1 1 10 100 1000 10000 0 20 40 60 80 100 120 140 instantaneous reverse current (ua) percent of rated peak reverse voltage (%) fig.2- typical reverse characteristics ta=25 ta=100 0 25 50 75 100 125 150 0.1 1 10 100 1000 junction capacitance (pf) reverse voltage (v) fig. 5- typical junction capacitance sf25~SF28 sf21~sf24 ta=25 0.1 1 10 100 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 instantaneous forward current (a) forward voltage (v) fig. 4- typical forward characteristics sf27~SF28 ta=25 pulse width=300us 1% duty cycle sf25~sf2 sf21~sf24
ordering information do-15 52mm do-15 52mm do-15 abzte O O symbol a b c d r0 b0 part no. package packing inner tape packing code (green) packing code sf2x (note) 1.5k / ammo box a0g 3.5k / 13" reel r0g 1k / bulk packing b0g a0 0.8 3.0 1.2 note: "xx" is device code from "1" thru "8". axial lead taping specifications outline suggested mounting hole rule unit(mm) 6.4
dimensions min max min max a 2.60 3.60 0.102 0.142 b 0.70 0.90 0.028 0.035 c 25.40 - 1.000 - d 5.80 7.60 0.228 0.299 e 25.40 - 1.000 - p/n = specific device code g = green compound yww = date code dim. unit(mm) unit(inch) marking diagram
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