wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 ejr series single & dual outputs 10 watt dc/dc converte r 2:1 wide input voltage range ?economy? version of jr series rev f features basic isolation rohs compliant typical efficiency: 81% single and dual outputs 2:1 wide input voltage range economy version of jr series no minimum load requirement remote control (48v models only) trim function (single outputs only) industry standard footprint: 2? x 1? x 0.4? approved to iec/en60950, ul60950 safety standards over current & short ci rcuit protection (48v single output models only) specifications: ejr series all specifications apply @ 25c ambient unless otherwise noted input specifications input voltage ra nge ...........12v nominal input............. 9 - 18vdc 24v nominal in put........... 18 - 38vdc 48v nominal in put........... 36 - 75vdc remote control (for 48v input models only) (positive logic) ..............hi gh = on ..................... 3.5 to 10vdc low = off.................... -0 .7 to 0.8vdc (negative logi c).............low = on.................... -0.7 to 0.8vdc high = off ..................... 3.5 to 10vdc remote control cu rrent......................... 2ma max. (positive logic) 4ma max. (negative logic) output specifications output current ................................................................ see table output voltag e................................................................ see table voltage adjustability (single ou tputs only)........... 90% to 110% vo voltage setpoint accu racy.....................................1.0% vo max. line regula tion......................................................0 .2% vo max. load regulatio n.......................................................0.5% vo max. maximum po wer .................................................................... 10w ripple/nois e .........................< 50mvp-p max. (12v & 24v inputs) < 50mvp-p max. (48v input, dual output) < 100mvp-p max. (48v input, single output) transient respons e................................................... 200mv max. recovery < 200 s max. (25% load step change from 50% io) di/dt: 1a/10 s protection (3.3v & 5v single output, 48v input models) over current protection (3.3v, 5v)..........> 120% io, auto-recovery short circuit protection (3.3v, 5v).........continuous, auto-recovery general specifications efficiency .......................................................................... see table environmental specifications operating temperat ure .......................... -40c to +55c (ambient) storage temperature ............................................ -55c to +125c operating case temperat ure ............................... - 40c to +100c temperature coeffi cient .............................................. < 0.02%/c mtbf...................................................................>2 ,000,000 hours physical specifications dimensions ............................. 50.80(l) x 25.40(w) x 10.16(h) mm 2.0(l) x 1.0(w) x 0.4(h) inches weight ....................................................................................23. 3g safety safety standar ds ...................................... iec/ en60950, ul60950 due to advances in technology, specifications subject to change without notice for 48v models only
wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 ejr series single & dual outputs 10 watt dc/dc converte r 2:1 wide input voltage range ?economy? version of jr series rev f output voltage / current rating charts single output models model input voltage output voltage output current efficiency technical datasheet ejr12s3.3-3000 3.3 vdc 3000ma 76% EJR12S5-2000 5 vdc 2000ma 81% ejr12s12-830 12 vdc 830ma 82% ejr12s15-670 12 vdc (9 ? 18 vdc) 15 vdc 670ma 83% ejr24s3.3-3000 3.3 vdc 3000ma 76% ejr24s5-2000 5 vdc 2000ma 81% ejr24s12-830 12 vdc 830ma 82% ejr24s15-670 24 vdc (18 ? 38 vdc) 15 vdc 670ma 83% ejr48s3.3-3000 3.3 vdc 3000ma 77% view pdf ejr48s5-2000 5 vdc 2000ma 81% view pdf ejr48s12-830 12 vdc 830ma 83% view pdf ejr48s15-670 48 vdc (36 ? 75 vdc) 15 vdc 670ma 84% view pdf dual output models model input voltage output voltage output current efficiency ejr12d5-1000 5 vdc 1000ma 80% ejr12d12-420 12 vdc 420ma 83% ejr12d15-330 12 vdc (9 ? 18 vdc) 15 vdc 330ma 84% ejr24d5-1000 5 vdc 1000ma 80% ejr24d12-420 12 vdc 420ma 83% ejr24d15-330 24 vdc (18 ? 38 vdc) 15 vdc 330ma 84% ejr48d5-1000 5 vdc 1000ma 81% ejr48d12-420 12 vdc 420ma 83% ejr48d15-330 48 vdc (36 ? 75 vdc) 15 vdc 330ma 84% notes 1. to order models with trim function add the suffix ?-t? to the part number. this option is only available for single output m odels. 2. remote control is only available for 48v nominal input models. 3. for 48v nominal input models without the remote on/o ff pin add the suffix ?-1? to the end of the part number. 4. over current and short circuit protection are only availabl e for the 3.3v single output and the 5v single output, 48v nomina l input models. derating curves
wall industries, inc. 5 watson brook road exeter, nh 03833 603-778-2300 www.wallindustries.com fax 603-778-9797 ejr series single & dual outputs 10 watt dc/dc converte r 2:1 wide input voltage range ?economy? version of jr series rev f mechanical drawing unit: inches [mm] bottom view pin connections (12v & 24v input models) pin connections (48v input models) pin # single output dual output pin # single output dual output 1 +vin +vin 1 +vin +vin 2 -vin -vin 2 -vin -vin 3 no pin no pin 3 remote on/off remote on/off 4 +vo +vo 4 +vo +vo 5 no pin (trim-optional) com 5 no pin (trim-optional) com 6 -vo -vo 6 -vo -vo pin connections without remote on/off pin (48v input models) pin # single output dual output 1 +vin +vin 2 -vin -vin 3 no pin no pin 4 +vo +vo 5 no pin (trim-optional) common 6 -vo -vo tolerance: x.xmm = 0.5mm x.xxmm = 0.25mm pin length: 5.8mm
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