ksd-d6a014-001 1 SDB320 schottky barrier rectifier to-252 20v, 3a schottky barrier rectifier features ? low forward voltage drop ? low power loss and high efficiency ? low leakage current ? high surge capability ? full lead (pb)-free and rohs compliant device applications ? high efficiency smps ? output rectification ? high frequency switching ? freewheeling ? dc-dc converter systems description the SDB320 is suited for switch mode power supply and high frequency dc to dc converters. this device is especially intended for use in low voltage, high frequency inverters, freewheeling and polarity protection applications. ordering information device marking code package packaging SDB320 32c sod-106 tape & reel marking information product characteristics i f(av) 3a v rrm 20v v fm at 125 0.40v (typ.) i fsm 30a sod-106 pin configuration pin 1: cathode pin 2: anode 2 1 2 1 32c = specific device code yww = year & week code marking -. y = year code -. ww = week code = color band denote cathode
ksd-d6a014-001 2 absolute maximum ratings ( rating at 25 ambient temperature unless otherwise specified.) characteristic symbol value unit maximum repetitive reverse voltage maximum working peak reverse voltage maximum dc blocking voltage v rrm v rwm v r 20 v maximum average forward rectified current i f(av) 3 a peak forward surge current 8.3ms single half sine-wave superimposed on rated load per diode i fsm 30 a storage temperature range t stg -55 to +150 maximum operating junction temperature t j 150 thermal characteristics characteristic symbol value unit maximum thermal resistance junction to ambient r th(j-a) 1) 100 /w * 1) device mounted on fr-4 board with recommended pad layout. electrical characteristics ( rating at 25 ambient temperature unless otherwise specified.) characteristic symbol test condition min. typ. max. unit peak forward voltage drop v fm 2) i fm = 3a t j =25 - 0.46 0.50 v t j =125 - 0.40 0.43 v reverse leakage current i rm 2) v r = v rrm t j =25 - - 2 ma t j =125 - - 50 ma typical junction capacitance c j v r =1v, f=1mhz - 650 - pf * 2) pulse test: t p 380 ? , duty cycle 2% to evaluate the conduction losses use the following equation : p f = 0.37 i f(av) + 0.0276 i f 2 (rms) SDB320 i fm 2 i f(av) i f(av) v fm forward voltage : v fm = v to + rd i fm conduction loss : p f = v to i f(av) + rd i f 2 (rms)
ksd-d6a014-001 3 rating and characteristic curves ? fig. 1) typical forward characteristics fig. 2) typical reverse characteristics fig. 3) maximum forward derating curve fig. 5) typical junction capacitance fig. 4) forward power dissipation SDB320
ksd-d6a014-001 4 package outline dimension recommend pcb sold er land dimension (unit: mm) SDB320
ksd-d6a014-001 5 the auk corp. products are intended for the use as components in general electronic equipment (office and co mmunication equipment, m easuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to th e welfare of human life(atomi c energy control, airplane, spaceship, transportation, co mbustion control, all types of safety device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equipm ents without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice. SDB320
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