DS450/550 Series 450–550 Watt Front End AC-DC Power Supplies


The DS450 and DS550 series bulk front end AC-DC power supplies accept a wide range 90–264 Vac input and provide a main 12 Vdc output, plus a 3.3 Vdc standby output. Rated at 450 watts and 550 watts respectively, the DS450 and DS550 have a typical full load conversion efficiency of 84%. Standard features include active current sharing, internal ORing FETs and an EEPROM for storing service data to facilitate efficient field replacement. An I2C communication interface is provided for the FRU EEPROM data.

DS450DC and DS550DC series power supplies have an industry-standard 1U x 2U form factor. The supplies are hot pluggable and ideal for fault tolerant and N+1 redundant applications.

DS450/550 Datasheet(s)

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  • Total Max Power: 550 W
  • Total Max Current: 45 A
  • Input Voltage: 90 V to 264 V
  • Output Voltage: 12 V
  • Outputs: Single
  • Size (L x W x H): 11.050" x 3.070" x 1.570"
  • Warranty: 1 year
  • Operating Temperature: -10°C to +50°C

Electrical Specifications

  • Leakage Current: 1.4 mA @ 240 V
  • Efficiency: 80% Typ
  • Input Range: 90 - 264 VAC
  • EMI/RFI: Class A
  • Frequency: 47 - 63 Hz
  • Main Output: Varies By Model
  • Stand-by Output: Varies By Model
  • Power Density: 10.3 W/cu-in
  • Operating Temp: -10 °C to 50 °C
  • 1U x 2U Form Factor
  • 10.3 W/ cu-in
  • No Min Load Required
  • Hot Plug Operation
  • N+1 Redundant
  • Active Current Sharing
  • I2C communication Bus
  • Status LED's
  • Smart Fan Speed Control
  • Full Safety Approval