ds13004 rev. e-2 1 of 2 b220/a-b260/a www.diodes.com diodes incorporated b220/a - b260/a 2.0a surface mount schottky barrier rectifier maximum ratings and electrical characteristics @ t a = 25c unless otherwise specified schottky barrier chip guard ring die construction for transient protection ideally suited for automatic assembly low power loss, high efficiency surge overload rating to 50a peak for use in low voltage, high frequency inverters, free wheeling, and polarity protection application high temperature soldering: 260c/10 second at terminal plastic material - ul flammability classification 94v-0 single phase, half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. mechanical data case: molded plastic terminals: solder plated terminal - solderable per mil-std-202, method 208 polarity: cathode band or cathode notch approx. weight: sma 0.064 grams smb 0.093 grams mounting position: any marking: type number no suffix designates smb package ?a? suffix designates sma package 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 b c d g h e j notes: 1. thermal resistance: junction to terminal, unit mounted on pc board with 5.0 mm 2 (0.013 mm thick) copper pad as heat sink. 2. measured at 1.0 mhz and applied reverse voltage of 4.0v dc. characteristic symbol b220/a b230/a b240/a b250/a b260/a unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 20 30 40 50 60 v rms reverse voltage v r(rms) 14 21 28 35 42 v average rectified output current @ t t = 100c i o 2.0 a non-repetitive peak forward surge current, 8.3ms single half sine-wave superimposed on rated load (jedec method) i fsm 50 a forward voltage @ i f = 2.0a v fm 0.50 0.70 v peak reverse current @ t a = 25c at rated dc blocking voltage @ t a = 100c i rm 0.5 20 ma typical junction capacitance (note 2) c j 200 pf typical thermal resistance, junction to terminal r jt 20 k/w typical thermal resistance, junction to ambient (note 1) r ja 25 k/w operating and storage temperature range t j, t stg -65 to +150 c features
ds13004 rev. e-2 2 of 2 b220/a-b260/a www.diodes.com 0.01 0.1 1.0 10 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 b220 thru b240 b250 thru b260 t - 25oc j i pulse width = 300 ms f 0 10 20 30 40 5 0 110100 i , peak fwd surge current (a) fsm number of cycles at 60 hz fi g . 3 max non-repetitive peak fwd sur g e current single half-sine-wave (jedec method) 10 100 1000 0.1 1 10 100 c , junction capacitance (pf) j v , reverse voltage (v) r fi g .4 t y pical junction capacitance t = 25c j f = 1mhz 0 20 40 60 80 100 120 140 i , instantaneous reverse current (ma ) r percent of rated peak reverse voltage (%) fi g . 5 t y pical reverse characteristics t = 100c j t = 75c j t = 25c j 100 10 1.0 0.1 0.01 0.001 0 0.5 1.0 25 50 75 100 125 150 i average forward current (a) o, t , terminal temperature (oc) t fi g . 1 forward current deratin g curve 1.5 2.0 2 .5
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