ls32a thru LS34A page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 3a surface mount low forward voltage schottky barrier rectifiers ls32a thru LS34A features z for surface mounted applications z low forward voltage z low profile package z built-in strain relief z easy pick and place z plastic material used carries underwriters laboratory classification 94 v-0 z extremely low vf z majority carrier conduction z high temperature soldering: 250c/10 seconds at terminals mechanical data z case: molded plastic, do-214ac (sma), dimensions in inches and (millimeters) z terminals: solder plated z polarity: indicated by cathode band z weight: 0.064 grams maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified single phase, half wave, 60 hz, resistive or inducti ve load for capacitive load, derate current by 20% ratings symbol ls32a ls33a LS34A units maximum recurrent peak reverse voltage v rrm 20 30 40 v maximum rms voltage v rms 14 21 28 v maximum dc blocking voltage v dc 20 30 40 v maximum average forward rectified current see fig.1 (note 1) i o 3.0 a maximum overload surge 8.3ms single half sine-wave i fsm 100 a typical thermal resistance (note 2) r jl 17 /w typical thermal resistance (note 2) r ja 55 /w storage temperature range t stg -55 to + 150 operating temperature range t op -55 to + 125 electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol ls32a ls33a LS34A units maximum forward voltage at 3.0a and 25 (note 1) v f 0.45 v maximum reverse current at 25 (note 1) i r 1 ma note: 1. pulse test: 300 s pulse width, 1% duty cycle 2. p.c.b. mounted 0.55?0.55 ?(14x14 mm ) 0.013mm thick copper pad areas .220(5.6) .192(4.9) .190(4.8) .157(4.0) .071(1.8) .035(0.9) .110(2.8) .090(2.3) .080(2.0) .100(2.6) .080(2.0) .065(1.65) .040(1.25) cathode .177(4.5) .071(1.8) .087(2.2) soldering pad
ls32a thru LS34A page: 2 ratings and characteristic curve ls32a thru LS34A fig. 3 - typical reverse characteristics 100 10 1.0 .10 .01 .001 instantaneous reverse current, milliamperes 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage, (%) t j =125 t j =75 t j =25 fig. 2 - typical instantaneous forward characteristics 20 10 1.0 0.1 instantaneous forward current amperes .1 .3 5 .7 .9 1.1 1.3 1.5 1.7 1.9 2.1 instantaneous forward voltage, volts t j =25 pulse width=300us 1% duty cycle fig. 1 - forward current derating curve 3.0 2.25 1.5 0.75 0 average forward current amperes 0 25 50 75 100 125 150 175 single phase half wave 60h z resistive or inductive load lead temperature, p.c.b mounted on 0.30.3?(8.08.0mm) copper pad areas fig. 4 -maximum non-repetitive forward surge current 100 80 60 40 20 0 0 10 100 number of cycles at 60 hz peak forward surge current (a) 8.3 ms single half sine wave (jedec method)
|
