New Industry Products

20W/40W Dual-Output Railway DC-DCs

June 04, 2019 by Scott McMahan

Traco Power has added products to two series of high-performance railway dc-dc converters. The TEQ 20WIR & 40WIR are two series of isolated railway dc-dc converter modules with 4:1 input voltage ranges. Both series of converters come in a rugged metal case.

These converters are suitable for a broad range of applications, Traco designed them specifically for railway and industrial applications where often no PCB mounting is possible but the module must be mounted on a chassis. Spring clamps also support the converters increased shock and vibration resistance.

Traco extended the product range with additional dual output models (±12Vdc, ±15Vdc, and ±24Vdc) to broaden the variety of typical applications. The new models offer increased shock and vibration resistance.

A very high efficiency of up to 91% and the heatsink construction allow an operating temperature up to +83°C (natural convection) without power derating and up to +93ºC with power derating.

Further features include under-voltage lockout, over-temperature protection and short circuit protection. The converters have EN 50155 approval for railway applications and feature I/O isolation up to 3000Vdc. The input filters the meet EN 55032, class B standard.

Traco backs the dc-dc converters with a 3-year warranty.


  • New dual output models ±12Vdc, ±15Vdc, ±24Vdc
  • High power block with excellent thermal convection
  • Operating temperature -40°C to +93°C
  • 4:1 input voltage range
  • EN 50155 approval for railway applications
  • Increased shock & vibration resistance
  • Excellent efficiency up to 91%
  • Input filter meet EN 55032, class B
  • I/O isolation up to 3000Vdc
  • 3-year product warranty