dated :12/01/2007 ? semtech electronics ltd. ( subsidiary of sino-tech internati onal holdings limited, a company listed on the hong kong stock exchange, stock code: 724 ) LS133 silicon epitaxial planar diode high speed switching diode features ? glass sealed envelope ? high speed ? high reliability absolute maximum ratings (t a = 25 o c) parameter symbol value unit peak reverse voltage v rm 90 v dc reverse voltage v r 80 v mean rectifying current i o 130 ma peak forward current i fm 400 ma surge current (1s) i surge 600 ma power dissipation p tot 300 mw junction temperature t j 175 o c storage temperature range t s - 65 to + 175 o c characteristics at t a = 25 o c parameter symbol max. unit forward voltage at i f = 100 ma v f 1.2 v reverse current at v r = 80 v i r 0.5 a capacitance between terminals at v r = 0.5 v, f = 1 mhz c t 2 pf reverse recovery time at v r = 6 v, i f = 10 ma, r l = 50 ? t rr 4 ns ls-34 quadromelf dimensions in mm
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