b0520lws / b0540ws http://www .weitron.com.tw weitron schottky diode 500 mampers 20-40 volts * low forward voltage drop * guard ring construction fortransient protection * high conductance surface mount schottky barrie r diode features: 1/3 rev.a 23-jun-09 dim min ma x a b c d e h j k 1.60 1.8 0 1.15 1.3 5 0.80 1.0 0 0.25 0.4 0 0.15 re f 0.00 0.1 0 0.089 0. 1 7 7 2.30 2.7 0 pin 1. c a thod e 2.anod e millmeters sod-323 outline demensions * case: sod-323 * plastic material Cul recognition flammability classi?cation 94v-o * leads: solderable per mil-std-202, method 208 * polarity: cathode band * weight: 0.004 grams(approx.) mechanical data: unit:mm sod-323 lead(pb)- f r ee p b
weitron http://ww w .weitron.com.tw maximum ratings ( t a =25c unless otherwise noted) characteristic p eak r epetiti v e r e v erse v oltage w o r k ing p eak r e v erse v oltage dc bloc k ing v oltage t he r mal r esistan c e jun c tion t o ambie n t symbol v rrm v r wm v r v r ( rms ) i fsm p d i o unit v v a ma mw c/w ope r a ting t empe r a tu r e r ange t j -65 t o +125 c c v/s r ja 244 410 p eak f o r w a r d su r ge c u r r e n t rms r e v erse v oltage a v e r age r e c c u r r e n t 20 14 40 28 500 5.5 characteristic symbol r e v erse b r eakd o wn v oltage i r =250a i r =130a i r =20a v (br)r unit f o r w a r d v oltage i f =0.1a i f =0.5a i f =1.0a i f =i r =10ma v f v v c apacitan c e be t w een t e r minals v r =1.0 v , f=1.0m h z r e v erse r e c o v e r y t ime c 170 4.0 pf r e v erse c u r r e n t v r =10v v r =15v v r =20v v r =30v v r =40v l i r - - 10 - 20 a ns - - 40 0.3 0.385 - 75 - 250 - - electrical characteristics (t a =25?c unless otherwise noted) 20 - - - 0.510 0.62 p o w er dissip a tion t t r r i r r =0.1 i , r =100w r i i device marking item marking eqivalent ci r cuit diagram b0520lws sd b0540ws sf 2 1 2/3 rev.a 23-jun-09 b0540ws b0520lws b0540ws b0520lws s t o r age t empe r a tu r e r ange t s t g 1000 v oltage r a t e of change dv/dt +125 b0520lws / b0540ws
weitron http://www.weitron.com.tw electrical characteristic curves(t a =25?c) 3/3 rev.a 23-jun-09 0 0.25 0.50 0 5 0 10 0 150 a r e v a , i g e r e c d e i f i t c t n e r r u ( a ) o t , lea d temper a ture ( c) l fig . 1 forward curren t derating curve 0.75 1.0 2 5 7 5 125 0.01 0.1 1.0 10 0.2 0 0. 4 0. 6 0. 8 1.0 ) a ( t n e r r u c d w f s u o e n a t n a t s n i , i f v , ins t an t aneou s fo r w ar d volt ag e (v) f fi g . 2 t ypica l forwar d characteristics ) f p ( e c n a t i c a p a c l a t o t , c t v , reverse v olt age ( v) r fi g . 3 t y p . t o t a l ca p aci t ance v s r everse v ol t a g e 1000 1.0 10 100 0 5 1 0 1 5 20 f = 1mhz b0540ws b0520lws b0520lws / b0540ws
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