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TDK-Lambda has expanded its PFE range of AC/DC Mega-brick power supplies with the introduction of the 1000W PFE-F Series.

Like the existing lower-power PFE modules, TDK-Lambda’s PFE1000F combines the AC to HV DC front-end with DC/DC converter into a single module.

In addition, the baseplate-cooled design greatly simplifies the thermal design of the equipment in which they are used.

PFE modules satisfy the increasing requirement for fanless high power, especially for outdoor electronics when suitably enclosed.

Up to six PFE1000F units can be operated in parallel, achieving outputs of up to 5.1kW.

For use in high-reliability equipment, N plus 1 redundant parallel operation is possible.

Space savings of 25 per cent are possible with PFE applications, compared with previous devices that used a two-stage AC/DC front-end module and DC/DC back-end module.

Typical uses include industrial, high-end ATE, quasi-military, traffic signs and cellular infrastructure approach.

Models in the fully regulated PFE1000F series are available in 12, 28 and 48V nominal outputs and can be adjusted +/-20 per cent.

The 12V versions deliver 720W, with a maximum baseplate temperature of 100C, while the 28V and 48V models provide 1,008W.

All versions of the PFE1000F Series have a wide-range AC input that allows operation from any voltage between 85V and 265V at 47 to 63Hz.

As standard, they incorporate active power factor correction and input-to-output isolation of 3,000V AC for one minute.

Over-voltage, over-current and over-temperature protection is also included.

The PFE1000F Series also has features such as remote on/off control, inverter operation good (IOG) signal and an auxiliary power supply for external signals (nominal 12V/20mA).

In conformance with telecoms equipment specifications, the PFE1000F features enhanced circuitry to improve lightning surge withstand capability up to 6kV when installed using recommended reference design.

The PFE1000F comes in a 100 x 13.4 x 160mm package and can be conduction-cooled with a cold-plate or force-cooled with a heatsink.

All products in TDK-Lambda’s PFE1000F Series conform to IEC/EN/UL/CSA 60950-1 safety approvals for general purpose applications.

The units also carry the CE mark, according to the LV Directive, and come with a two-year warranty.

TDK-Lambda is a subsidiary of the TDK Corporation, a leading global electronics company (

TDK-Lambda has been a major provider of power supplies for over 60 years.  The company designs and manufactures a wide range of AC-DC Power Supplies and DC-DC Converters for Industrial, Medical, Telecom, Datacom, and Test & Measurement applications worldwide.

With production facilities in Asia, America and EMEA, TDK-Lambda has positioned itself as one of the world’s largest manufacturers of power conversion products with recognized leadership in the
industrial market segment.

With our comprehensive 1.5W to 90kW range of AC/DC power supplies, DC/DC converters, Programmable DC power supplies and EMI noise filters, TDK-Lambda offers the right solution for a wide spectrum of applications.

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