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 SK12AF sk13af sk14af sk15af sk16af sk18af sk110af sk115af sk120af marking code 12af 13af 14af 15af 16af 18af 110af 115af 120af 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 90 p f operating temperature range t j storage temperature range t stg symbol SK12AF sk13af sk14af sk15af sk16af sk18af sk110af sk115af sk120af unit v f 0.45 0.87 0.90 volts maximum average reverse current at @tc=25 rated dc blocking voltage @tc=100 notes :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%. i r maximum ratings and electrical characteristics smaf(do-221ac) package characteristics 120/90 70 35 maximum instantaneous forward voltage at 1.0a dc(note i o i fsm 30 60 50 -55 to +150 1.0 mamps 0.70 amps amps SK12AF thru sk120af pb free product unit 0.5 0.85 -55 to +125 -55 to +150 1.0amp surface mount schottky barrier rectifiers -20v-200v 0.5 0.2 10 5 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.
2011-12 1.0amp surface mount schottky barrier rectifiers -20v-200v SK12AF thru sk120af smaf(do-221ac) package pb free product willas electronic corp. fig. 1-typical forward current derating curve fig. 2-typical forward characteristics 0.6 0.8 1 1.2 s <12af~s <1af o rward current,(a) 1.00 10.00 100.00 orward current (a) 0 0.2 0.4 0 20 40 60 80 100 120 140 160 180 200 s <115af~s <120af average f o ambient temperature( ) 0.01 0.10 0.2 0.4 0.6 0.8 1.0 forward voltage (v) instantaneous f tj=25 pulse width 300us 2% duty cycle fig. 3-maximum non-repetitive forward surge current fig. 4-typical reverse characteristics 30 40 50 r ge current (a) 1 10 100 25 100 e current (ma) tj=25 8.3ms single half sine wave jedec method 0 10 20 1 10 100 peak forward su r 0.0001 0.001 0.01 0.1 20 40 60 80 100 percentage rated peak reverse voltage (%) reverse leakag fig. 5-typical junction capacitance number of cycles at 60hz 400 500 (pf) percentage rated peak reverse voltage (%) 0 100 200 300 junction capacitance 0 1 10 100 reverse voltage (v) SK12AF sk13af~sk14af sk15af~sk16af sk18af~sk110af sk115af~sk120af SK12AF sk13af~sk14af sk15af~sk16af sk18af~sk110af sk115af~sk120af
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