features * low profile package * ideal for automated placement * guard ring for over voltage protection * low forward voltage drop * rohs product for packing code suffix "g", halogen free product for packing code suffix "h" mechanical data * case: molded plastic,do-221ac/ smaf * epoxy: ul 94v-o rate flame retardant * terminals: solder plated, solderable per mil-std-750, method 2026 * mounting position: cathod band * weight: approximated 0.032 gram. ratings at 25 ambient temperature unless otherwise specified. single phase half wave, 60hz, resistive of inductive load. for capacitive load, derate current by 20% ratings symbol SK32AF sk33af sk34af sk35af sk36af sk38af sk310af sk315af sk320af marking code 32af 33af 34af 35af 36af 38af 310af 315af 320af maximum recurrent peak reverse voltage v rrm 20 30 40 50 60 80 100 150 200 volts maximum rms voltage v rms 14 21 28 35 42 56 70 105 140 volts maximum dc blocking voltage v dc 20 30 40 50 60 80 100 150 200 volts maximum average forward rectified current 0.375" (9.5mm) lead length (see fig.1) peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) typical thermal resistance (note 1) r ja/ r jc /w typical junction capacitance (note 2) c j 100 80 p f operating temperature range t j storage temperature range t stg symbol SK32AF sk33af sk34af sk35af sk36af sk38af sk310af sk315af sk320af unit maximum instantaneous forward voltage at 3.0a dc(note v f 0.45 0.87 0.90 volts maximum average reverse current at @t c =25 rated d c blocking voltage @t c =100 note s :1. thermal resistance forjunction to ambient: vertical pc board mounting, 0.5 (12.7mm) lead length. thermal resistance for junction to case 2. measured at 1 mhz and applied reverse voltage of 4.0 volts. 3. measured at pulse width 300s, duty cycle 2%. 3.0amp surface mount schottky barrier rectifiers -20v-200v SK32AF thru sk320af pb free product unit 0.5 0.85 0.5 0.2 10 5 -55 to +125 -55 to +150 180 3.0 mamps 0.70 amps amps i o i fsm 80 150 110 -55 to +150 i r maximum ratings and electrical characteristics smaf(do-221ac) package characteristics 70/30 0 0 1 2 0.155(3.95) 0.181(4.60) 0.189(4.80) 0.220(5.60) 0.088(2.25) 0.116(2.95) 0.049(1.25) 0.065(1.65) 0 .035(0.90) .044(1.10) 0.029(0.75) 0.059(1.50) 0 0 1 2 0.155(3.95) 0.181(4.60) 0.189(4.80) 0.220(5.60) 0.088(2.25) 0.116(2.95) 0.049(1.25) 0.065(1.65) 0 .035(0.90) .044(1.10) 0.029(0.75) 0.059(1.50) dimensions in inches and (millimeters) 2011-12 willas electronic corp.
thru sk320af pb free product SK32AF fig. 1-typical forward current derating curve fig. 2-typical forward characteristics 2 3 4 5 s <32af ~ ^ <310af s <315af~s <320af o rward current,(a) 1.00 10.00 100.00 f orward current (a) 0 1 0 20 40 60 80 100 120 140 160 180 200 average f o ambient temperature( ) 0.01 0.10 0.2 0.4 0.6 0.8 1.0 forward voltage (v) instantaneous f fig. 3-maximum non-repetitive forward surge current fig. 4-typical reverse characteristics 60 80 100 rge current (a) 01 1 10 100 25 100 g e current (ma) tj=25 8.3ms single half sine wave jedec method 0 20 40 1 10 100 number of cycles at 60hz peak forward su 0.0001 0.001 0.01 0 . 1 20 40 60 80 100 percentage rated peak reverse voltage (%) reverse leaka g fig. 5-typical junction capacitance number of cycles at 60hz 400 500 e (pf) percentage rated peak reverse voltage (%) 0 100 200 300 junction capacitanc e 0 1 10 100 reverse voltage (v) tj=25 pulse w dth 300us 2% duty cycle sk 32af~s k 34af sk 35af~s k 36af sk 38af~s k 310af sk 315af sk 320af sk 32af~s k 34af sk 35af~s k 36af sk 38af~s k 310af sk 315af sk 320af 2011-12 willas electronic corp. 3.0amp surface mount schottky barrier rectifiers -20v-200v smaf(do-221ac) package
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