3.2 - 63 3.2 4 11 r0 hermetic jedec to-254aa high efficiency, center-tap rectifier features ? very low forward voltage ? very fast switching time ? hermetic metal package, jedec to-254aa outline ? low thermal resistance ? isolated package ? high surge ? ceramic feedthroughs available ? available screened to mil-s-19500, tx, txv and s levels description this series of products in a hermetic package is specifically designed for use at power switching frequencies in excess of 100 khz. the series combines two high efficiency devices into one package, simplifying installation, reducing heat sink hardware, and the need to obtain matched components. these devices are ideally suited for hi-rel applications where small size and a hermetically sealed package are required. common anode configurations are also available. common cathode is standard. absolute maximum ratings (per diode) @ 25c peak inverse voltage ..............................................50 to 200 v maximum average d.c. output current @ t c = 100 c ......................20 a surge current (non-repetitive 8.3 msec) ................................. 500 a thermal resistance junction-to-case ................................. 1.3c/w operating and storage temperature range ....................- 55 c to + 150c 40 amp, 50 to 200 volts, 50 ns trr om5259sa/ra/da om5260sa/ra/da om5257sa/ra/da om5258sa/ra/da common anode common cathode doubler 1 3 2 1 3 2 1 2 3 common cathode is standard. contact factory for performance characteristics for common anode and doubler. standard products are supplied with glass feedthroughs. for ceramic feedthroughs, add the letter c to the part number. example - omxxxxc sa. schematic omxxxxra omxxxxsa omxxxxda
om5257sa/ra/da - om5260sa/ra/da 3.2 205 craw ford street, leominster, ma 01453 usa (508) 534-5776 fax (508) 537-4246 100 50 70 30 20 10 5.0 7.0 3.0 2.0 1.0 0.5 0.7 0.3 0.2 0.1 0.2 0.4 0.6 0.8 1.0 1.2 v f = instantaneous voltage (volts) t j = 100? t j = 25? typical forward voltage typical reverse current v r = reverse voltage (volts) i f = instantaneous forward current (amps) i r = reverse current (a) 500 100 300 200 10 50 20 30 1.0 5.0 2.0 3.0 0.05 0.2 0.3 0.5 0.1 0 20 40 60 80 100 120 140 160 180 200 .144 dia. .050 .040 .260 .249 .685 .665 .800 .790 .545 .535 .550 .510 .045 .035 .550 .530 .150 typ. .150 typ. .005 mechanical outline t j = 100c t j = 150c t j = 25c electrical characteristics (per diode) t j = 25c unless otherwise specified maximum maximum maximum part number piv forward voltage reverse current reverse @ 15 a (1) @ piv recovery t j = 25 c t j = 100 c t j = 25 c t j = 100 c time (2) om5257xx 50 v om5258xx 100 v 1.1 v 1.0 v 20 a 1.0 ma 50 nsec om5259xx 150 v om5260xx 200 v notes: (1) pulse test : pulse width = 300 s, duty cycle 2.0%. (2) measured in circuit: i f = 0.5 a, i r = 1.0 a, i rec = 0.25 a z-tab package also available. 12 3
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