8/4/00 LL4148 small-signal diode reverse voltage 100v forward current 150ma features ?silicon epitaxial planar diode ?fast switching diode in minimelf case especially suited for automatic insertion. ?this diode is also available in other case styles including the do-35 case with the type designation 1n4148, the sod-123 case with the type designation 1n4148w, and the sot-23 case with the type designation imbd4148. mechanical data case: minimelf glass case (sod-80) weight: approx. 0.05g cathode band color: black packaging codes/options: f4/10k per 13?reel (8mm tape), 50k/box maximum ratings and thermal characteristics (t a = 25? unless otherwise noted) parameter symbol limit unit reverse voltage v r 75 v peak reverse voltage v rm 100 v forward dc current at t amb = 25? (1) i f 200 ma average rectified current: half wave rectification with i f(av) 150 ma resistive load at t amb = 25? f 50 hz (1) surge forward current at t < 1s and tj = 25? i fsm 500 ma power dissipation at t amb = 25? (1) p tot 500 mw thermal resistance junction to ambient air (2) r ja 350 c/w thermal resistance junction to tie-point r jtp 300 ?/w junction temperature t j 175 ? storage temperature t s 65 to +175 ? electrical characteristics (t j = 25? unless otherwise noted) parameter symbol test condition min typ max unit forward voltage v f i f = 10ma 1 v v r = 20v 25 na leakage current i r v r = 75v 5 a v r = 20v, t j = 150? 50 a capacitance c tot v f = v r = 0 4 pf voltage rise when switching on v fr t p = 0.1 s, rise time < 30ns 2.5 v (tested with 50 ma forward pulses) f p = 5 to 100khz reverse recovery time t rr i f = 10ma, i r = 1ma, 4 ns v r = 6v, r l = 100 ? rectification efficiency (see third page) f = 100mhz, v rf = 2v 0.45 notes: (1) valid provided that electrodes are kept at ambient temperature (2) device mounted on fr4 printed-circuit board .146 (3.7) .019 (0.48) cathode band .130 (3.3) .051 (1.3) .011 (0.28) .063 (1.6) dia. minimelf (sod-80c) dimensions in inches and (millimeters)
LL4148 small-signal diode ratings and characteristic curves (t a = 25 c unless otherwise noted)
rectification efficiency measurement circuit ratings and characteristic curves (t a = 25 c unless otherwise noted) LL4148 small-signal diode
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