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650 to 850 W Power Supplies (48 VDC Input)

The DS650DC and DS850DC series bulk front-end power supplies are the DC-input versions of their DS650 and DS850 AC-input counterparts. Mechanically identical to the AC versions, these products allow system operation from a Telco-style 48 VDC input. Rated at 650 and 850 W respectively, the power supplies provide a choice of 12 V, 24 V or 48 V output. Each model also provides a 3.3 V or optional 5.5 V standby output. 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 FRU EEPROM data. DS650DC and DS850DC series power supplies are hot-pluggable and ideal for fault-tolerant and N+1 redundant applications.


  • 1U x 2U Form Factor
  • 15.4 W/cu-in
  • No Minimum Load Required
  • Hot Plug Operation
  • N+1 Redundant
  • Internal OR-ing FET's
  • Active Current Share
  • Smart Variable Speed Fan Control
  • I2C Communicaton Bus


  • Hot Plug Operation
  • N+1 Redundant
  • Internal OR-ing FET's


Output Power (W): 850
Length (Inches): 11
Width (Inches): 3.2
Height (Inches): 1.57
Mounting Type: Rack-mount
Minimum Output Current (A): 0
Maximum Output Current (A): 70
Output Voltage Range (V): 12V to 12V
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Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
DS850DC-3 Active, In Stock 12 12 70 0 1 Request Buy

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