1SS400 high speed switching diodes features small surface mounting type high speed high reliability with high surge current handing capability maximum ratings and electrical characteristics, single diode @t a =25 ?? parameter symbol limits unit peak reverse voltage v rm 90 v dc reverse voltage v r 80 v peak forward current i fm 225 ma mean rectifying current i o 100 ma surge current (1s) i surge 500 ma junction temperature t j 125 ?? storage temperature t stg -55~+125 ?? electrical ratings @t a =25 ?? parameter symbol min. typ. max. unit conditions forward voltage v f 1.2 v i f =100ma reverse current i r 0.1 | a v r =80v capacitance between terminals c t 3.0 pf v r =0.5v,f=1mhz reverse recovery time t rr 4 ns v r =6v,i f =10ma,r l =100 |? 1SS400 http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs wej electronic co.,ltd
! ! ! ! el ec tr ica l cha r act e r is ti c cu r v e s ( t a = 25 c) 0 1 100m 10m 1m 100 10 0.2 0.4 0.6 0.8 1.0 1.2 1.4 forward current : i f (a) forward voltage : v f (v) fig.1 forward characteristics ta = 125 c ta = 75 c ta = 25 c ta =? 25 c 0 ta = 125 c ta = 75 c ta = 25 c 1m 0.1m 10 1 100n 10n 1n 20 40 60 80 100 120 reverse current : i r (a) reverse voltage : v r (v) fig.2 reverse characteristics 0 2 4 6 8 10 12 14 10 5 2 1 0.5 0.2 0.1 reverse voltage : v r (v) capacitance between terminals : c t (pf) fig.3 capacitance between terminals 0 0 10 20 30 1 2 3 v r = 6v i rr = 1/10i r reverse recovery time : t rr (ns) forward current : i f (ma) fig.4 reverse recovery time characteristics 0.1 1 10 100 1 000 10 000 1 2 5 10 20 50 100 pulse single pulse surge current : i surg e (a) pulse width : tw (ms) fig.5 surge current characteristics pulse generator output 50 ? sampling oscilloscope 50 ? 5k ? 0.01 f d.u.t. fig.6 reverse recovery time (t rr ) measurement circuit 1SS400 http:// www.wej.cn e-mail:wej@yongerjia.com wej electronic co. r o hs wej electronic co.,ltd
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