22 corey street, melrose, massachusetts 02176 phone (781) 665-1071 fax (781) 665-7379 website: http://www.cdi-diodes.com e-mail: mail@cdi-diodes.com 1n4454 1n4454-1 i r1 i r2 capacitance @ 50 v dc @ 50 v @ 0 v t a = 150c a a pf 0.1 100 2.0 figure 1 design data case: hermetically sealed glass case per mil-s-19500/144 d0-35 outline lead material: copper clad steel. lead finish: tin / lead thermal resistance: (r o jl ): 250 ?c/w maximum at l = .375 thermal impedance: ( z o jx ): 70 ?c/w maximum polarity: cathode end is banded. mounting position: any. v f 1 v f 2 t rr v br v rwm i 0@ i f = 10 ma @ i f = 10 ma @5a t a = 150c volts volts (pk) ma v dc v dc n sec 75 50 200 1.0 0.7 4 maximum ratings junction temperature: -55c to +175c storage temperature: -55c to +175c operating current: 200 ma @ t a = +25c derating factor: 1.33 ma/c above t a = + 25c surge current a: 1a (pk), p w = 1 sec surge current b: 4a (pk), p w = 1 s electrical characteristics @ 25c, unless otherwise speci?ed. ? 1n4454 and in4454-1 available in jan, jantx, and jantxv per mil-prf-19500/144 ? switching diode ? hermetically sealed ? metallurgically bonded ? double plug construction
in4454 and 1n4454-1 .3 .4 .5 .6 .7 .8 .9 1.0 1.1 1.2 1.3 vf - forward voltage (v) figure 2 typical forward current vs forward voltage i f - forward current - (ma) 1000 100 10 1 0.1 150oc 100oc 25oc -65oc 20 40 60 80 100 120 140 percent of reverse working voltage (%) figure 3 typical reverse current vs reverse voltage i r - reverse current - ( a) 1000 100 10 1 0.1 .01 .001 150oc 100oc 25oc -65oc note : all temperatures shown on graphs are junction temperatures
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