glass sealed envelope. (msd) v rm =250v guaranteed high reliability weight: 0.031 grams maximum ratings and electrical characteristics ratings at 25 ambient temperature unless otherwise specified. single phase,half wave,50 hz,resistive or inductive load. for capacitive load,derate by 20%. units maximum recurrent peak reverse voltage v rrm v maximum dc blocking voltage v dc v maximum average forward rectified current peak forw ard surge current 10ms single half-sine-w ave superimposed on rated load maximum instantaneous forward voltage@0.2 a v f v capacitance between terminals @vr=0v,f=1mhz r =220v reverse recovery time i f =20ma,i r =20ma,r l =50|? t rr ns operating junction temperature range t j storage temperature range t stg case: mini-melf,glass case reverse voltage: 250 v current: 0.2 a i f(av) 0.2 1.5 polarity: color band denotes cathode 250 a 75 a i fsm 625.0 ma i r 10.0 - 55 ---- + 175 - 55 ---- + 175 1ss245 220 power dissipation p tot 300 m w maximum reverse current @v c t 3.0 pf 1ss245 small signal switching diode s features mechanical data http://www.luguang.cn mail:lge@luguang.cn 3. 4 +0 .3 -0 . 1 0. 4 ? 0. 1 |? 1 . 5 ? 0 . 1 ca t h ode indif i c a t i on mini-melf dimensions in millimeters
reverse current, a reverse recovery time, ns capacitance between terminals, pf fi g.5 -- surge current characteri sti cs fi g.6 -- reverse recovery ti me (trr) measurement ci rcui t surge current, a pulse width, ms fi g.4 -- reverse recovery ti me characteri sti cs forward current, ma reverse voltage, v fi g.3 -- capaci tance between termi nals cccccc characteri sti cs forward voltage, v forward voltage, v forward current, ma fi g.2 -- reverse characteri sti cs fi g.1 --forward characteri sti cs 0 350 t a =25 10n 100n 1 10 50 100 150 25 0200 300 50 75 100 0 5 35 20 0 i r =10ma irr=1ma 10 2015 3025 60 40 120 80 100 140 2 10 0 1.6 1.8 200 1 20 100 0.1 1.4 1.0 1.2 0.2 0.4 0.6 0.8 t a =125 75 25 -25 1 0.6 03 2 4 5 0.7 0.8 1.0 0.9 1.1 50 5k pulse generator output 50 sampling oscilloscope 1 10 100 1000 14 12 10 8 6 4 2 0 0.1 0.1mf d.u.t. 1ss245 small signal switching diode s ratings and charactieristic curves http://www.luguang.cn mail:lge@luguang.cn
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