cmhd457a cmhd459a surface mount low leakage silicon diode description: the central semiconductor cmhd457a, cmhd459a types are silicon planar diodes, epoxy molded in a sod-123 surface mount package, designed for low leakage applications. marking codes: cmhd457a: c7a cmhd459a: c9a maximum ratings: (t a =25c) symbol cmhd457a cmhd459a units peak repetitive reverse voltage v rrm 70 200 v peak working reverse voltage v rwm 60 175 v average forward current i o 200 ma continuous forward current i f 500 ma peak forward surge current, tp=1.0s i fsm 4.0 a power dissipation p d 400 mw operating and storage junction temperature t j , t stg -65 to +150 c thermal resistance ja 312.5 c/w electrical characteristics: (t a =25c unless otherwise noted) cmhd457a cmhd459a symbol test conditions min max min max units i r v r =rated v rwm 25 25 na i r v r =rated v rwm , t a =150c 5.0 5.0 a bv r i r =100a 70 200 v v f i f =100ma 1.0 1.0 v c t v r =0, f=1.0mhz 6.0 6.0 pf sod-123 case r2 (5-august 2010) www.centralsemi.com
cmhd457a cmhd459a surface mount low leakage silicon diode sod-123 case - mechanical outline marking code cmhd457a: c7a cmhd459a: c9a lead code 1) cathode 2) anode www.centralsemi.com r2 (5-august 2010)
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