MPD-425V 250W DC-DC Power Supply Input Range: 40~57VDC 2.0 11.0 TO SWITCH 14.0 0.4 0.42 14.4 DC-DC 0.5 13.8 4.8 0.6 1.6 2.4 2.7 8.0 8.62 6.4 4-TAPPING #6-32 0.5 11.5 Features *Input Voltage: 40~57VDC *Input Current: Max. 8A at 48VDC *Inrush Current: Does not exceed 10A at 48VDC input, cold start at 25oC *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~+50oC (operating); -40~+75oC (storage) *Humidity: 5~95%; non-condensing at 40oC (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. Safety Standards *Safety: UL 1950 / CSA 22.2 No.234 / VDE EN60950 *EMI: FCC class B / EN55022B *EMS: Level 3 of IEC-801, 802 PIN Red Yellow Brown Blue Black White Output +5V +12V -12V -5V GND P.G. Output Min. Voltage Load +5V 1A +12V 0A -12V 0A -5V 0A Rated Load 25A 10A 1A 1A Industrial Power Supply DC OUTPUT WIRES 0.35 PIN 1 2 3 Max. Load 30A 12A 2A 2A Input 48VDC 0V GND Tolerance +/-0.1V +/-0.72V +/-0.6V +/-0.25V www.boser.com.tw