zowie (20v~40v / 500ma) USCD052H thru uscd054h absolute maximum ratings (ta = 25 o c) v rrm USCD052H 20 uscd054h 40 uscd053h 30 v i f(av) ma i fsm a t j t stg 5.0 125 -40 to +125 8.3ms single half sine-wave item average forward current symbol conditions unit peak forward surge current junction temperature rating 500 repetitive peak reverse voltage storage temperature range schottky barrier diode * halogen-free type * compliance to rohs product * lead less chip form, no lead damage * low power loss, high efficiency * high current capability, low vf * plastic package has underwriters laboratory flammability classification 94v-0 features * switching mode power supply applications * portable equipment battery applications * high frequency rectification * dc / dc converter * telecommunication application * 3,000 pieces per 7" (178mm 2mm) reel * 5 reels per box * 6 boxes per carton packing case : packed with frp substrate and epoxy underfilled terminals : pure tin plated (lead-free), solderable per mil-std-750, method 2026. polarity : laser cathode band marking weight : 0.003 gram mechanical data t opr -40 to +125 operating temperature range o c electrical characteristics (ta = 25 o c) item symbol conditions min. typ. max. unit v f i f = 500ma v - 0.47 0.50 forward voltage o c/w - 160 - r th(ja) junction to ambient thermal resistance o c/w - 110 - r th(jl) junction to lead pf - 35 - c j v r = 4v, f = 1.0 mhz junction capacitance ua - - 50 i rrm repetitive peak reverse current v r = @ 20v , ta = 25 o c 2013/05 rev. 2 uni t : mm outline dimensions marking equivalent : sod-523 2b . case : 0603 0.35 0.05 0.35 0.05 0.03 1.6 0.1 r 0.20 0.90 0.1 0.70 typ. 0.60 + 0.2 - 0.1 mounting pad layout 2.30 ref . 0.80 min. 0.60 min. 1.10 max. voltage class: 2 = 20v, 3 = 30v, 4 = 40v
zowie (20v~40v / 500ma) USCD052H thru uscd054h 2013/05 rev. 2 0 10 1 100 10 20 30 40 1000 reverse voltage, (v) juction capacitance (pf) fig. 5 - typical junction capacitance 0 0.3 0.1 0.2 0.4 0.5 0.6 50 75 100 150 25 125 0 average forward current, (a) lead temperature, ( o c) fig. 1 - typical forward current derating curve 0.0 .001 10 0.01 0.10 1.00 0.1 0.2 0.3 0.4 0.5 0.6 forward current, (a) forward voltage, (v) fig. 3 - forward characteristics ta = 2 5 o c fig.2 - maximum non-repetitive peak forward surge current peak forward surge current, amperes number of cycles at 60hz 8.3ms single half sine-wave (jedec method) 0 2 1 3 4 5 6 1 10 100 t a= 25 o c t a= 125 o c t a= 75 o c 10m 1m 100u 10u 1u 0.1u 0 20 40 60 80 100 reverse current, (a) percent of rated peak reverse voltage,% fig.4 - typical reverse characteristics
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