3.2 - 31 3.2 4 11 r2 supersedes 1 07 r1 20 amp ultra low forward voltage schottky center-tap rectifiers features ? small size/jedec to-257aa package ? ultra low forward voltage ? two rectifiers per package ? rugged package design ? high efficiency for low voltage supplies ? hermetic and isolated package ? available screened to mil-s-19500, tx, txv and s levels description this series of schottky barrier diodes offers ultra low forward voltage and high output current for its small package size. the om4411st was designed for demanding applications where small size, light weight and high reliability are required. these devices are ideal replacements for to-3, do-4 or do-5 packages. all products are available hi-rel screened. absolute maximum ratings (per diode) t c = 25c peak inverse voltage ....................................................45 v maximum average dc output current .....................................10 a non-repetitive peak surge current (8.3 ms) .............................. 150 a storage temperature range ................................- 55 c to + 175 c junction operating temperature range .......................- 55 c to + 150 c package thermal resistance, junction-to-case ........................ 2.0 c/w om4411st/rt/dt 20 amp, 45 volt center-tap schottky common anode common cathode doubler 1 3 2 1 3 2 1 2 3 schematic connection diagram 123 common cathode is standard. contact factory for performance characteristics for common anode and doubler. z-tab package also available. omxxxxrt omxxxxdt omxxxxst
om4411st/rt/dt 3.2 205 craw ford street, leominster, ma 01453 usa (508) 534-5776 fax (508) 537-4246 100 10 1.0 0.1 0.01 0.001 01020 30 40 50 t j = 150? 25? 125? 75? 100? .430 .410 .200 .190 .038 max. .005 .120 typ. .537 .527 .665 .645 .420 .410 .150 .140 .750 .500 .100 typ. .035 .025 .045 .035 jedec to-257aa mechanical outline i r = reverse current (ma) 50 20 10 5 3 1 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 typical forward voltage 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 v f - instantaneous voltage (volts) i f - instantaneious forward current (amps) 100c 50 20 10 5 0.5 1 3 175c 150c t j = 25c typical reverse current v r -reverse voltage (volts) electrical characteristics (per diode) characteristic symbol max. unit maximum instantaneous forward voltage* v f volts i f = 10 a, t c = 100c 0.575 i f = 10 a, t c = 25c 0.625 maximum instantaneous reverse current* i r ma rated dc voltage, t c = 125c 50 rated dc voltage, t c = 25c 1.0 capacitance v r = 5.0v, t c = 25c c t 800 pf * pulse test: pulse width = 300 s, duty cycle 2.0%
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