applications ? servers, switches and data storage ? networking gear ? wireless communications ? data communications ? distributed power architecture ? telecommunications ? semiconductor test equipment ? industrial / medical the u3 family of high efficiency dc/dc converters offer power levels of up to 3 watt, which exceeds that of other sub-bricks wi th the same package, while also providing ultra-wide input voltage range. with a 4:1 input voltage range and single & mu lti-outputs, these converters provide versatilit y without sacrificing the board space. all models feature an in put filter, continuous short circuit protection and regulat ed outputs. the fully enclosed, encap sulated construction facilitates ma ximum power delivered with the hi ghest efficiency of up to 80%. all converters combine creative design practices with highly der ated power devices to achieve very high reliab ility, high performance and low cost solution to systems designers. specifications & features summar y ? regulated outputs ? -25c to +71c ambient operation ? continuous short-circuit protection ? up to 3kv, 10m input-to-output isolation ? pi input filter ? 4:1 input range ? through-hole packages only u3 series dc/dc modules app roval pendin g intronics power inc. 1400 providence highway, building 2, norwood, ma 02062-5015 ? phone: 1-781-551-5500 ? fax: 1-781-551-5555 rev. b ? 5-sided metal shield high isolation versions ? 200khz switching frequency ? no airflow or heatsink required ? volta g e accurac y 2% model num v in v out i out i no load i full load eff case u3-12s5 9-36 vdc 5.0 vdc 600.0 ma 15.0 ma 174 ma 72% t u3-12s12 9-36 vdc 12.0 vdc 250.0 ma 15.0 ma 165 ma 76% t u3-12s15 9-36 vdc 15.0 vdc 200.0 ma 15.0 ma 165 ma 76% t u3-12d5 9-36 vdc 5.0 vdc 300.0 ma 25.0 ma 179 ma 70% t u3-12d12 9-36 vdc 12.0 vdc 125.0 ma 25.0 ma 174 ma 72% t u3-12d15 9-36 vdc 15.0 vdc 100.0 ma 25.0 ma 174 ma 72% t u3-12s3.3 9-36 vdc 3.3 vdc 600.0 ma 15.0 ma 117 ma 70% t u3-48s5 18-72 vdc 5.0 vdc 600.0 ma 7.5 ma 87 ma 72% t u3-48s12 18-72 vdc 12.0 vdc 250.0 ma 7.5 ma 78 ma 80% t u3-48s15 18-72 vdc 15.0 vdc 200.0 ma 7.5 ma 78 ma 80% t u3-48d5 18-72 vdc 5.0 vdc 300.0 ma 12.0 ma 88 ma 71% t u3-48d12 18-72 vdc 12.0 vdc 125.0 ma 12.0 ma 87 ma 72% t u3-48d15 18-72 vdc 15.0 vdc 100.0 ma 12.0 ma 87 ma 72% t u3-48s3.3 18-72 vdc 3.3 vdc 600.0 ma 7.5 ma 58 ma 70% t specifications input specifications input voltage range 24v--------9-36v 48v--------18-72v input filter pi type output specifications voltage accuracy 2.0% max. voltage balance(dual) 1.0% / max. temperature coefficient 0.05% / o c ripple and noise, 20mhz bw, single & 5vo 100mv p-p max. dual 1% p-p max. short circuit protection continuous line regulation, single/dual 1 0.5% load regulation, single 2 0.5% dual 3 1.0% efficiency see table isolation resistance 10 9 ohms switching frequency 100khz, min operating temperature range -25 o c to +71 o c case temperature (plastic case) 95 o c max. (copper case) 100 o c max. cooling free-air convection storage temperature range -40 o c to +100 o c dimensions 1.25x0.8x0.4 inches (31.8x20.3x10.2mm) isolation voltage 500vdc (standard models) 1,500vdc min (add suffix ?hm?) suffix ?hm? models 3k vdc min 4 (add suffix ?h?) suffix "m" models case material standard models non-conductive black plastic suffix "hm" models black coated copper with non- conductive base notes 1. measured from high line to low line 2. measured from full load to 10% load 3. measured from full load to 1/4 load 4. non-conductive black plastic only mechanical outline and pinouts for u3 family dc/dc converters typical at ta= +25 oc under nominal input voltages of 24v and 48vdc, unless noted. the information and specifications contained in this brief are believed to be accurate and reli able at the time of publication. specifications are subject to change without notice. refe r to product specification sheet for perfo rmance characteristics and application guid elines. consult factory for hundreds of other availa ble input/output voltage configurations.
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