www.boser.com.tw industrial power supply dc-dc MPD-425V 250w dc-dc power supply input range: 40~57vdc *input voltage: 40~57vdc *input current: max. 8a at 48vdc *inrush current: does not exceed 10a at 48vdc input, cold start at 25 o c *ripple and noise: < +/-1% peak to peak ripple and noise for each output *line regulation: < +/-1% at rated load with +/-10% change in input voltage *load regulation: +/-4% for +5v, +/-5% for +12v, +/-3% for -12v and -5v *power good signal: goes high 100~500ms after all dc output are ready *power failure: goes low 1ms before any dc output falls *efficiency: 70% typical at nominal line and rated load *altitude: 10,000 feet *protection: input: protection against wrong polarity if 48vdc input is inversely connected by mistake output: built-in over voltage protection. trip point of crowbar circuit is between 5.9~7.0v. hiccup mode against short circuit or over load conditions auto recovery when faulty conditions are removed *temperature: 0~+50 o c (operating); -40~+75 o c (storage) *humidity: 5~95%; non-condensing at 40 o c (operating) *connectors: input: three positions terminal block dc output: output provides one at type p8/p9 and two disk drive connector to switch: female disconnects for tab size 0.250" x 0.032" *dimensions: 14.0 x 15.0 x 8.62 cm with +/-0.8mm and +/- 0.4mm tolerance between mounting holes *mtbf: 178,042 hrs. features features *safety: ul 1950 / csa 22.2 no.234 / vde en60950 *emi: fcc class b / en55022b *ems: level 3 of iec-801, 802 safety standards safety standards wires dc output to switch 4-tapping #6-32 0.4 0.35 0.42 14.4 2.0 11.0 14.0 4.8 2.7 6.4 1.6 11.5 0.5 8.62 8.0 2.4 0.6 0.5 13.8 output voltage +5v +12v -12v -5v min. load 1a 0a 0a 0a rated load 25a 10a 1a 1a max. load 30a 12a 2a 2a tolerance +/-0.1v +/-0.72v +/-0.6v +/-0.25v pin 1 2 3 input 48vdc 0v gnd output +5v +12v -12v -5v gnd pin red yellow brown blue black p.g. white
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