30v-40v 3.0a ssa33l and SSA34 1 of 2 web site: www.taychipst.com features e-mail: sales@taychipst.com maximum ratings and electrical characteristics m e c h a n i c a l d a t a ? low power loss, high efficiency ? low profile surface mount package ? built-in strain relief ? for use in low voltage high frequency inverters, free wheeling, and polarity protection applications ? guardring for overvoltage protection ? plastic package has underwriters laboratory flammability classification 94v-0 case: jedec do-214ac molded plastic body terminals: solder plated, solderable per mil-std750, method 2026 high temperature soldering guaranteed: 250c/10 seconds at terminals polarity: color band denotes cathode end weight: 0.002 ounce, 0.064 gram high-current density surface mount schottky rectifier maximum ratings and thermal characteristics (t a = 25? unless otherwise noted) parameter symbol ssa33l SSA34 unit device marking code 33l s34 v maximum repetitive peak reverse voltage v rrm 30 40 v maximum rms voltage v rms 21 28 v maximum dc blocking voltage v dc 30 40 v maximum average forward rectified current at t l (see fig. 1) i f(av) 3.0 a peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) i fsm 75 a typical thermal resistance (2) r ja 110 r jl 28 ?/w voltage rate of change (rated v r ) dv/dt 10,000 v/ s operating junction temperature range t j -65 to +150 ? storage temperature range t stg -65 to +150 ? electrical characteristics (t a = 25? unless otherwise noted) parameter symbol typ. max. typ. max. unit maximum instantaneous t j =25? v f 0.43 0.45 0.46 0.49 v forward voltage at 3.0a (1) t j =125? 0.34 0.38 0.38 0.42 maximum dc reverse current t j =25? 0.5 0.2 at rated dc blocking voltage (1) t j =125? i r 20 35 17 30 ma notes : (1) pulse test: 300 s pulse width, 1% duty cycle (2) aluminum substrate mounted
ssa33l and SSA34 ratings and characteristic curves ssa33l and SSA34 2 of 2 e-mail: sales@taychipst.com web site: www.taychipst.com 1 10 100 0 20 40 60 80 fig. 3 ?typical instantaneous forward characteristics fig. 5 ?typical junction capacitance number of cycles at 60 h z reverse voltage (v) peak forward surge current (a) 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 025 50 75 100 125 150 fig. 1 ?forward current derating curve average forward current (a) lead temperature ( c) fig. 2 ?maximum non-repetitive peak forward surge current 0.01 0.1 0.2 0.4 0.6 0.8 1.0 0 1 10 100 instantaneous forward voltage (v) instantaneous forward current (a) 020 60 40 100 80 0.001 0.01 1 0.1 10 100 fig. 4 ?typical reverse characteristics instantaneous reverse current (ma) percent of rated peak reverse voltage (%) pf - junction capacitance 1 10 100 100 1000 10 ssa33l SSA34 ssa33l SSA34 ssa33l SSA34 ssa33l SSA34 t j = 150 c t j = 150 c t j = 125 c t j = 25 c t j = 125 c t j = 25 c t j = 25 c f = 1.0 mh z vsig = 50mvp-p 30v-40v 3.0a high-current density surface mount schottky rectifier
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