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1200 W Front End AC-DC Power Supplies

The DS1200 series is Advanced Energy's highest power, highest density bulk front end AC-DC power supply in the industry standard 1U x 2U form factor. It accepts a wide range 90 to 264 VAC input and provides a main 12 V output plus a 3.3 V or optional 5.5 V standby output. Rated at 1100 W, it has a high half-load efficiency of 91%. Housed in an industry standard 1U x 2U rack-mounting package, the power supply is designed for servers and similar space-constrained applications. This series comes in two airflow versions – dc-connector to ac-connector and vice versa.

The main 12 V output can deliver up to 100 A and stays within regulation down to zero load, making it perfect for feeding downstream DC-DC converters in systems that use distributed power architectures (DPA). Standard features include active current sharing, internal ORing FETs and an EEPROM for storing service data to facilitate efficient field replacement. The DS1200 power supply is hot pluggable and ideal for fault tolerant and N+1 redundant applications.

This digitally-controlled power supply is PMBus® compliant. A built-in I2C serial interface allows set-up, monitoring and control to be performed using Advanced Energy's universal PMBus graphical user interface.


  • Active Power Factor Correction
  • EN61000-3-2 harmonic compliance
  • Active AC Inrush Control
  • Standard 1U x 2U form factor
  • High Density 21.71 W/cu-in
  • +12 VDC Output
  • +3.3 or 5.0 VDC stand-by
  • No Minimum load required
  • Hot-plug operation
  • N+1 Redundant
  • Internal OR'ing FET's
  • Active current sharing
  • Built-in "Smart" fan
  • INTEL, SSI std. logic timing
  • EEPROM for FRU data
  • PMBus compliant
  • Full Digital Control


  • +12 Vdc Output
  • +3.3 or 5.0 Vdc stand-by
  • No Minimum load required
  • Hot-plug operation
  • N+1 Redundant
  • Internal OR'ing FET's


Output Power (W): 1200
Length (Inches): 11
Width (Inches): 3.2
Height (Inches): 1.57
Mounting Type: Rack-mount
Minimum Output Current (A): 0
Maximum Output Current (A): 100
Output Voltage Range (V): 0V to 12V
All Specifications Collapse Specifications

Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
DS1200-3-005 Active, Contact Us 11.4 12.6 100 12 1 Contact Us Buy
DS1200HE-3 Active, Contact Us 0 0 100 12 2 Contact Us Buy
DS1200HE-3-002 Active, Contact Us 0 0 100 12 2 Contact Us Buy


Universal PMBus GUI Software Package

The all new universal PMBus GUI software package provides power engineers with a simple – yet functionally powerful – user interface that delivers world-class control flexibility over their digitally controlled power conversion products.

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