High-efficiency, universal input AC/DC modules deliver 1 kW

August 23, 2016 // By Graham Prophet
TDK’s PFE1000FA series of power modules is an upgrade to the established PFE1000F and offers efficiencies as high as 90%, an improvement of up to 4%. Rated between 720W and 1000W, the products are designed for use with a cold-plate where cooling fans are not permitted, including industrial, MIL-COTS and communications applications.

The PFE1000FA is available with nominal output voltages of 12V, 28V and 48V that can be adjusted over a ±20% range for non-standard voltage requirements. The series accepts an 85 to 265Vac input and can operate at full load with baseplate temperatures of between -40 and +100°C.


Having the same pinout and package dimensions as the original series, 100 x 13.4 x 160 mm, the new units can be used to upgrade existing designs, offering up to 30% lower losses and reduced operating temperatures. Input current wave-shapes have been improved to be more sinusoidal, allowing the PFE1000FA to meet the harmonics standard IEC 61000-3-2 with greater margins.


All models feature remote on/off, an opto-isolated module-good signal, single wire current sharing and a 12V 20 mA standby voltage as standard. The PFE1000FA modules are safety certified to IEC/EN/US 60950-1, with CE marking for the Low Voltage and RoHS2 Directives. The series now carries an extended warranty of five years.


TDK-Lambda; www.de.tdk-lambda.com/pfe