www.astrodyne.com i s o l a t e d a n d r e g u l a t e d 2 0 wat t m o d u l a r d c / d c c o n v e r t e r s a s d 2 0 s e r i e s astrodyne usa: 1-800-823-8082 astrodyne pacific: 886-2-26983458 wide 4:1 input range 1500v isolation short circuit protection remote on/off control high efficiency input pi filter model number output voltage output amps input range efficiency single output asd20-12s3 3.3 vdc 4 9-36 vdc 78% asd20-48s3 4 18-72 vdc 78% asd20-12s5 5 vdc 4 9-36 vdc 81% asd20-48s5 4 18-72 vdc 82% asd20-12s12 12 vdc 1.67 9-36 vdc 83% asd20-48s12 1.67 18-72 vdc 84% asd20-12s15 15 vdc 1.33 9-36 vdc 83% asd20-48s15 1.33 18-72 vdc 84% dual output asd20-12d5 +/-5 vdc +/-2.0 9-36 vdc 83% asd20-48d5 +/-2.0 18-72 vdc 84% asd20-12d12 +/-12 vdc +/-833 9-36 vdc 83% ASD20-48D12 +/-833 18-72 vdc 84% asd20-12d15 +/-15 vdc +/-666 9-36 vdc 83% asd20-48d15 +/-666 18-72 vdc 84% unit measures 1.6w x 2l x 0.45h
www.astrodyne.com i s o l a t e d a n d r e g u l a t e d 2 0 wat t m o d u l a r d c / d c c o n v e r t e r s a s d 2 0 s e r i e s astrodyne usa: 1-800-823-8082 astrodyne pacific: 886-2-26983458 input specifications input voltage ranges: 12 vdc nominal 9-36 vdc 24 vdc nominal 18-72 vdc input filter pi type remote on/off control logic compatibility cmos or open collector ttl ec-on >+5.5vdc or open circuit ec-off <1.8vdc control common ref. to - input output specifications voltage and current see selection chart load regulation (25% to fl) +/-0.5% line regulation (hl-ll) +/-0.5% temperature coefficient +/-0.02%/c ripple/noise rms 20mv max. p-p 75mvp-p max. voltage accuracy single o/p +/-1% dual +o/p +/-1% dual -o/p +/-2% voltage balance (dual fl) +/-1% short circuit protection continuous efficiency see selection chart transient response single 25% load change <500us dual full load to 1/2 load <500us trim +/-10% general specifications input-output isolation 1500vdc isolation resistance 10-8nth ohm min. switching frequency 300khz safety ul60950 rfi six sided shielding mtbf mil-hdbk-217f ground benign, 25c 880,584 hrs. environmental specifications oper. temperature -25 to +71c w. derate derate above 60c linearly to zero power +100c case temperature 100c max. storage temperature -55 to +105c * physical specifications case material black coated copper w. non-conductive base construction fully encapsulated weight 2 oz, (57g) dimensions 1.6 x 2 x 0.45 * these are stress ratings. exposure of the devices to any of these conditions may adversely affect long term reliability. proper operation under conditions other than the standard operating conditions is neither warranteed nor implied. all specifications are typical at nominal input, full load, and 25c unless other - wise noted astrodyne products are not authorized or warranteed for use as critical components in life support systems, equipment used in hazardous environments, nuclear controls systems, or other mission-critical applications.
www.astrodyne.com i s o l a t e d a n d r e g u l a t e d 2 0 wat t m o d u l a r d c / d c c o n v e r t e r s a s d 2 0 s e r i e s astrodyne usa: 1-800-823-8082 astrodyne pacific: 886-2-26983458 mechanical dimensions pin # single outputs dual outputs 1 on/off control on/off control 3 - input - input 4 + input + input 5 trim trim 6 - vout - vout 7 + vout common 8 no pin + vout all dimensions in inches (mm) tolerance .xx = +/-0.04, .xxx = +/- 0.010
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