New compact 32-V front end power supplies delivers up to 8-kW in 1U rack

November 08, 2012 // By Paul Buckley
TDK Corporation has extended the company’s TDK-Lambda HFE1600 range of 1.6k W high-density, front end power supplies with the addition of a 32 V model.

Suitable for use in broadcast applications, the HFE1600-32 operates from a universal 85 to 265 Vac input, and the high efficiency of up to 92% minimises heat dissipation and power consumption thus meeting Climate Savers Computing efficiency standards. The HFE1600-32 is equally well-suited for use in applications including communications, laser and process control.

As with other models in the HFE1600 range, the HFE1600-32 AC-DC power supply can be used individually or up to five units can be mounted into a dedicated 1U rack delivering 8 kW. To form a hot swap N+1 redundant power system, up to 10 units can be configured in parallel with single wire current sharing.  TDK-Lambda has also integrated a keying system to prevent misinsertion of modules into adjacent racks of differing voltage. Output voltage is programmable by resistance, external voltage or optional PM Bus compatible I2C communication interface.

The HFE1600 hot swap front end power supplies comply with EN55022 and FCC Class A radiated and Class B conducted emissions and meet IEC61000-4 immunity. All models are safety approved to EN/IEC/UL 60950-1 edition 2 with CE mark and are backed by a three-year warranty.

More information about the HFE1600 series at