ds23026 rev. 4 - 2 1 of 3 sd930/SD940/sd945 www.diodes.com diodes incorporated high current capability and low forward drop high surge capacity guard ring for transient protection low power loss, high efficiency lead free finish, rohs compliant (note 5) mechanical data case: do-201ad case material: molded plastic. ul flammability classification rating 94v-0 moisture sensitivity: level 1 per j-std-020c terminals: finish bright tin. leads solderable per mil-std-202, method 208 polarity: cathode band mounting position: any ordering information: see last page weight: 1.1 grams (approximate) single phase, half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. maximum ratings and electrical characteristics @ t a = 25c unless otherwise specified notes: 1. pulse width s - duty cycle 2%. 2. measured at 1.0mhz and applied reverse voltage of 4.0v. 3. device mounted to heat sink with 1/8" lead length. 4. thermal resistance from junction to lead vertical pc board mounting, 9.5mm lead length. 5. rohs revision 13.2.2003. glass and high temperature solder exemptions applied, see eu directive annex notes 5 and 7. sd930 / SD940 / sd945 high current schottky barrier rectifier features do-201ad dim min max a 25.40 ? b 7.20 9.50 c 1.20 1.30 d 4.80 5.30 all dimensions in mm a a b c d characteristic symbol sd930 SD940 sd945 unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 30 40 45 v maximum average forward current @ t c = 120c (note 2) i o 9.0 a maximum peak one-cycle @ 5s sine wave surge current @ 10ms sine wave i fsm 2150 340 a forward voltage (note 1) @ i f = 9.0a, t j = 25c @ i f = 9.0a, t j = 125c @ i f = 18a, t j = 25c @ i f = 18a, t j = 125c v fm 0.48 0.42 0.57 0.52 v voltage rate of change dv/dt 10,000 v/s peak reverse current @t j = 25c at rated dc blocking voltage (note 1) @ t j = 125c i rm 0.8 70 ma maximum junction capacitance (note 2) c j 900 pf typical thermal resistance junction to case (note 4) r jl 8.0 k/w operating and storage temperature range t j, t stg -65 to +150 c
ds23026 rev. 4 - 2 2 of 3 sd930/SD940/sd945 www.diodes.com 0 2 4 0 50 100 150 i , avera g ere c tified current (a) o t , case temperature (c) fig. 1 fwd current derating curve c 6 8 10 1 1000 10000 10 100 1000 10000 peak f o rward surge current (a) t , pulse duration (ms) fig. 4, maximum non-repetitive surge current p 100 1000 4000 0.1 1.0 10 100 c , capacitance (pf) j v , reverse voltage (v) fig. 3 maximum junction capacitance r t j = 25c f=1mhz 0.1 1.0 10 50 0.2 0.4 0.6 0.8 1.0 i , instantane o us fwd current (a) f v , instantaneous fwd voltage (v) fig. 2 typical forward characteristics f t = 125c j t=25c j 2% duty cycle
notes: 6. for packaging details, visit our website at http://www.diodes.com/datasheets/ap02008.pdf ds23026 rev. 4 - 2 3 of 3 sd930/SD940/sd945 www.diodes.com 0.01 0.1 1.0 10 0.0001 0.001 0.01 0.1 1.0 10 100 t 1 t 2 p (dm) single pulse 0.08 0.17 0.25 0.33 d=0.50 0 20 40 60 80 100 120 140 i , instantaneous reverse current (ma ) r percent of rated peak reverse voltage (%) fig. 6, typical i vs. % of v rr t = 125oc j t = 85oc j t = 25oc j 100 10 1.0 0.1 0.01 ordering information device packaging shipping sd930-b do-201ad 500/bulk sd930-t do-201ad 1.2k/tape & reel, 13-inch SD940-b do-201ad 500/bulk SD940-t do-201ad 1.2k/tape & reel, 13-inch sd945-b do-201ad 500/bulk sd945-t do-201ad 1.2k/tape & reel, 13-inch (note 6)
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