smd type diodes 1 www.kexin.com.cn 0.4 +0.1 -0.1 2.9 +0.1 -0.1 0.95 +0.1 -0.1 1.9 +0.1 -0.1 2.4 +0.1 -0.1 1.3 +0.1 -0.1 0-0.1 0.38 +0.1 -0.1 0.97 +0.1 -0.1 0.55 0.4 1.base 2.emitter 3.collector 12 3 unit: mm sot-23 0.1 +0.05 -0.01 surface mount switching diodes KAS21,a,c,s (bas21,a,c,s) features fast switching speed surface mount package ideally suited for automatic insertion high conductance for general purpose switching applications absolute maximum ratings ta = 25 parameter symbol rating unit reverse voltage v r 250 v forward current i f 200 ma power dissipation p d 200 mw operating junction temperature range t j -55to+150 storage temperature range t stg -55to+150 marking no. KAS21 KAS21a KAS21c KAS21s marking js js2 js3 js4 KAS21 KAS21a KAS21c KAS21s electrical characteristics ta = 25 parameter symbol testconditons min typ max unit reverse breakdown voltage v (br) i r =100 a 250 v i f =100ma 1.0 i f =200ma 1.25 reverse leakage i r v r =200v 1.0 a junction capacitance c j v r =0v, f=1.0mhz 5.0 pf reverse recover time t rr 50 ns v f forward voltage v
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