AC/DC Power Supply - CALEX Mfg. Co.


ConTech, a Division of Calex Mfg., announces the “PK4” Series of AC/DC switching power supplies. The PK4 Series offers 4 Watts of output power in a 1.44 x 1.06 x .67 inch encapsulated case, making it well suited for small size PCB applications.   The PK4 series operates from a standard 85 to 264 VAC input, at 47 to 440 Hz. 

The single output models available are 3.3, 5, 9, 12, 15, & 24VDC. Dual output models are +5/+3, +12/+5, +/-12, & +/-15VDC. Protective features used in this series are output over-voltage protection and short circuit protection. The units are encapsulated with a thermally conductive potting compound in a plastic resin and fiberglass case that meets UL94V-0. The PK4 series is rated for 3000 VAC isolation, is UL approved, and is RoHS compliant. 


  • 4 Watts of output power
  • suited for small size PCB applications

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