50-Watt DC/DC Converter - 55J1

50-Watt DC/DC Converter - 55J1

Model DC/DC 55J1

50-Watt DC/DC Converter - 55J1

NAI’s 55J1 is a 50-Watt DC/DC Converter that accepts a +28 VDC input. This COTS unit provides full-power output, either single or dual, at a baseplate temperature of +100° C.

Standard features include remote error sensing; remote digital (TTL) turn on/off; and protection against transients, overvoltage, overcurrent, and short-circuits. Options such as ESS vibration testing and choice of output voltages are available, and additional options and special units can be ordered.

This conduction-cooled, switching power supply is specifically designed with NAVMAT component derating for rugged defense and industrial applications. It is also designed to meet the many harsh environmental requirements of military applications.

Power Supply Reference Guide


  • Ideal for rugged, conduction-cooled, military applications
  • Ordering information for single and dual outputs:
    • 55JS1 - single output
    • 55JD1 - dual output (±15 VDC only)
  • Standard output voltages: 5 V, 12 V, 15 V, 28 V
  • Integrated EMI filtering per MIL-STD-461D
  • Input transient protection per MIL-STD-704D
  • High power density
  • Low profile packaging
  • Low noise
  • Operates at full load through the entire -55° C to +100° C temperature range
  • Contact factory for additional options and special units
Document DownloadsDate
55J1 Series Specifications
Stp File for 55JS1 DC/DC converter