Thursday, May 24, 2018
Publication Date: 04/1/2011
Archive >  April 2011 Issue >  New Products > 

FDK Intros Isolated Quarter Brick DC/DC Converter
Quarter-brick DC/DC converter.
San Jose, CA and Tokyo, Japan — FDK Corporation is adding a new high-power regulated quarter brick to its Sensei Series of isolated DC/DC converters. The FPQR48T5R050 converter provides 50A of output current (250 Watts) with outstanding thermal performance.

The converter is designed for Intermediate Bus Architecture (IBA) and Distributed Power Architecture (DPA) in telecommunications, WiMAX, data processing, computing, and storage applications that require a regulated 5V distribution bus.

The converter operates from a 36 to 75VDC input and provides a tightly regulated 5VDC output with an efficiency said to be greater than 92.5 percent. It is offered in a 2.30 x 1.45 x 0.555-in. (58.4 x 36.8 x 14.1mm) industry-standard quarter brick footprint and pin-out. As an available option, the converter can support parallel operation of multiple units without the need for external components, with a load sharing accuracy within ±10 percent. Standard features include input under-voltage lockout (UVLO), output over-current protection (OCP), output over-voltage protection (OVP), over-temperature protection (OTP), remote output voltage sense, and output voltage trim using industry-standard trim equations. The converter meets the basic insulation requirements of EN60950 and features input-to-output DC isolation of 1500VDC. The Sensei Series converters require little or no derating at high ambient temperatures without the need for heat sinks. With a 48VDC input, the FPQR48T5R050 converter delivers the full-rated output of 50A (250W) at ambient temperatures up to 55°C with 500LFM (2.5m/s) airflow. This excellent thermal performance is the result of electrical, thermal, and packaging design that is optimized for high density circuit card conditions.

All Sensei Series products are RoHS-compliant.

Contact: FDK America, Inc., 250 E. Caribbean Dr., MS200, Sunnyvale, CA 94089 408-215-6500 fax: 408-215-6501 E-mail: Web:

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