b0540ws document number: ds30524 rev. 8 - 2 1 of 3 www.diodes.com may 2008 ? diodes incorporated b0540ws surface mount schottky barrier rectifier features ? low forward voltage drop ? guard ring construction for transient protection ? high conductance ? lead free by design/rohs compliant (note 3) ? "green" device (note 4) mechanical data ? case: sod-323 ? case material: molded plasti c, "green" molding compound. ul flammability rating classification 94v-0 ? moisture sensitivity: level 1 per j-std-020d ? polarity: cathode band ? terminals: finish - matte tin annealed over alloy 42 leadframe. solderable per mil-std-202, method 208 ? marking information: see page 2 ? ordering information: see page 2 ? weight: 0.004 grams (approximate) top view maximum ratings @t a = 25c unless otherwise specified single phase, half wave, 60hz, re sistive or inductive load. for capacitance load, derate current by 20%. characteristic symbol value 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 i o 0.5 a non-repetitive peak forward surge current 8.3ms single half sine-wave superimposed on rated load i fsm 3 a thermal characteristics characteristic symbol value unit power dissipation (note 1) p d 235 mw typical thermal resistance junction to ambient (note 1) r ja 426 c/w operating and storage temperature range t j, t stg -40 to +125 c electrical characteristics @t a = 25c unless otherwise specified characteristic symbol min typ max unit test condition reverse breakdown voltage (note 2) v (br)r 40 ? ? v i r = 1ma forward voltage v f ? 285 480 300 550 mv i f = 10ma i f = 500ma reverse current (note 2) i r ? ? 1.0 2.0 3 5 a a v r = 10v v r = 30v total capacitance c t ? ? 125 20 ? ? pf pf v r = 0v, f = 1.0mhz v r = 10v, f = 1.0mhz notes: 1. part mounted on fr-4 pc board with recomm ended pad layout, which can be f ound on our website at http:// www.di odes.com/datas heets/ap02001.pdf. 2. short duration pulse test used to minimize self-heating effect. 3. no purposefully added lead. 4. diodes inc.'s "green" policy can be found on our website at http:// www.di odes.com/products/l ead_free/index.php.
b0540ws 10 1 100 1,000 .001 00 b0540ws document number: ds30524 rev. 8 - 2 2 of 3 www.diodes.com may 2008 ? diodes incorporated . 6 0 1m 10m 0102025 35 40 15 5.0 30 v , instantaneous reverse voltage (v) fig. 2 typical reverse characteristics r t = 25c a t = 75c a t = 125c a i, i n s t a n t a n e o u s f o r wa r d c u r r e n t (ma) f v , instantaneous forward voltage (v) fig. 1 typical forward characteristics f 0.10 0.20 0.30 0.40 0.50 .01 .1 0 10 100 c , t o t al c a p a c i t an c e (p f ) t v , dc reverse voltage (v) fig. 3 total capacitance vs. reverse voltage r 1,000 510 25 20 15 0 0.25 0.50 05 01 0 0 i, ave 1 5 0 r a g e f o r wa r d c u r r en t (a) f(av) t , terminal temperature ( c) fig. 4 forward current derating curve t 0.75 1.0 25 75 125 ordering information (note 5) part number case packaging B0540WS-7 sod-323 3000/tape & reel notes: 5. for packaging deta ils, go to our website at http://www.di odes.com/datasheets/ap02007.pdf . marking information sf sf = product type marking code
b0540ws document number: ds30524 rev. 8 - 2 3 of 3 www.diodes.com may 2008 ? diodes incorporated b0540ws package outline dimensions suggested pad layout important notice diodes incorporated and its subsidiaries rese rve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to any product herein. diodes incorporat ed does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the ri ghts of others. the user of products in such applications shall assume all risks of such use and will agree to hold diodes inco rporated and all the companies whose products are represented on our website, harmless against all damages. life support diodes incorporated products are not authoriz ed for use as critical components in life support devices or systems without the e xpressed written approval of the president of diodes incorporated. sod-323 dim min max a 0.25 0.35 b 1.20 1.40 c 2.30 2.70 h 1.60 1.80 j 0.00 0.10 k 1.0 1.1 l 0.20 0.40 m 0.10 0.15 0 8 all dimensions in mm k l m j c h ba z x c g y dimensions value (in mm) z 3.75 g 1.05 x 0.65 y 1.35 c 2.40
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