72.5-Watt DC Power Line Conditioner w/Holdup

72.5-Watt DC Power Line Conditioner w/Holdup

Model DC/DC 44KS3-02

72.5-Watt DC Power Line Conditioner w/Holdup

NAI's 44KS3-02 is a 72.5-Watt Power Line Conditioner with holdup time that protects downstream DC/DC converters from transients, low voltage conditions, and power interruptions. This unit accepts +28 VDC input and provides a single output at 72.5 Watts – either 22.5 to 30 VDC with holdup time or +16 VDC without holdup time - to all downstream DC/DC converters.

Designed to plug directly into a 3U cPCI chassis, the 44S3-02 is conduction-cooled through the card edge/wedgelock. Standard features include continuous Background Built-in-Test (BIT), reverse polarity protection, an external ON/OFF switch, and holdup time.

The 44KS3-02 is specifically designed for rugged defense and industrial applications and meets the many harsh environmental requirements of military applications.

Power Supply Reference Guide


  • Perfect companion for all DC/DC converters
  • Designed to work with the NAI 55KQ2-02 DC/DC Converter
  • Protects downstream converters from input transients per MIL-STD-704A through F
  • Integrated EMI filtering per MIL-STD-461F when used with additional system EMI filtering
  • Up to 160 ms holdup time
  • +5 VDC standby output
  • Operates at full load through the entire -40° C to +85° C temperature range
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44KS3-02 Specification