ds30240 rev. 3 - 2 1 of 3 b340la/b www.diodes.com diodes incorporated b340la/b 3.0a low vf schottky barrier rectifier features very low forward voltage drop guard ring die construction for transient protection ideally suited for automatic assembly low power loss, high efficiency surge overload rating to 70a peak mechanical data case: molded plastic plastic material - ul flammability classification 94v-0 moisture sensitivity: level 1 per j-std-020a terminals: solder plated terminal - solderable per mil-std-202, method 208 also available in lead free plating (matte tin finish). please see ordering information, note 4, on page 2 polarity: cathode band or cathode notch approx. weight: sma 0.064 grams smb 0.093 grams marking: type number single phase, half wave, 60hz, resistive or inductive load unless otherwise noted. for capacitive load, derate current by 20%. a b c d g h e j characteristic symbol b340la/b unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 40 v rms reverse voltage v r(rms) 28 v average rectified output current (note 1) t l = 90c i o 3.0 a non-repetitive peak forward surge current, single sine-wave superimposed on rated load, 60hz i fsm 70 a operating and storage temperature range t j, t stg -40 to +125 c notes: 1. when mounted on alumina substrate, 180 half sine wave. 2. short duration test pulse used to minimize self-heating effect. characteristic symbol min typ max unit conditions reverse breakdown voltage (note 2) v (br)r 40 i r = 2.0ma forward voltage drop (note 2) v fm 0.310 0.350 0.450 v i f = 1.0a i f = 3.0a leakage current (note 2) i rm 150 ua v r = 15v v r = 20v v r = 40v 1.0 2.0 ma typical total capacitance c t 180 pf f = 1mhz, v r = 4.0vdc typical thermal resistance, junction to terminal r jt 25 c/w mounted on alumina substrate maximum ratings @ t a = 25 c unless otherwise specified electrical characteristics @ t a = 25 c unless otherwise specified t c u d o r p w e n sma smb dim min max min max a 2.29 2.92 3.30 3.94 b 4.00 4.60 4.06 4.57 c 1.27 1.63 1.96 2.21 d 0.15 0.31 0.15 0.31 e 4.80 5.59 5.00 5.59 g 0.10 0.20 0.10 0.20 h 0.76 1.52 0.76 1.52 j 2.01 2.62 2.00 2.62 all dimensions in mm ?a? suffix designates sma package ?b? suffix designates smb package
ds30240 rev. 3 - 2 2 of 3 b340la/b www.diodes.com t c u d o r p w e n xxx = product type marking code, ex: b340la (sma package) xxxx = product type marking code, ex: B340LB (smb package) = manufacturers? code marking yww = date code marking y = last digit of year ex: 2 for 2002 ww = week code 01 to 52 yww xxx(x) notes: 3. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 4. for lead free terminal plating part number, please add "-f" suffix to part number above. example: b340la-13-f. device packaging shipping b340la-13 B340LB-13 sma smb 5000/tape & reel 3000/tape & reel ordering information (note 3 & 4)
ds30240 rev. 3 - 2 3 of 3 b340la/b www.diodes.com 0.1 1.0 10 100 0 0.2 0.4 0.6 0.8 1.0 i , instantaneous forward current (a) f v , instantaneous forward voltage (v) f fi g .2 t y pical forward characteristics t = 25oc a t = 125oc a t = 100oc a 0 0.5 1.0 25 50 75 100 125 150 i average forward current (a) o, t , terminal temperature ( c) t fi g . 1 forward current deratin g curve 1.5 2.0 2.5 3 . 0 10 100 1000 0.1 1 10 100 c , capacitance (pf) t v , reverse voltage (v) r fi g .4 t y pical total capacitance t = 25c j f = 1 mhz 0 20 40 60 80 100 110100 i , peak forward surge current (a) f number of cycles at 60 hz fi g . 3 max non-repetitive peak forward sur g e current single half-sine-wave (jedec method) t = 100c t 10 0 20 30 40 i , instantaneous reverse current (ma) r v , instantaneous reverse voltage (v) r fi g .5 t y pical reverse characteristics t = 125oc a t = 100oc a t = 25oc a 100 10 1.0 0.1 0.01 1000 t c u d o r p w e n
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