Sensei Series Eighth Brick Isolated DC/DC Converters Deliver 30A at 75 Degrees Celsius with no Derating
Regulated 3.3, 2.5, 1.8, 1.5 and 1.2V Outputs for IBA and DPA Applications

Nov. 7, 2007

Sensei Series Eighth Brick Isolated DC/DC Converters
Sensei Series Eighth Brick Isolated DC/DC Converters

FDK Corporation (Tokyo Stock Exchange 1st Section: Code 6955) introduces the first eighth brick products in its Sensei Series of isolated dc/dc converters with the announcement of the FPER48T converters that provide 30 amperes (A) of output current at regulated voltages of 3.3 to 1.2 volts (V) with little or no derating at elevated temperatures. With a 48Vdc input and 400 LFM (2m/s) airflow, the FPER48T converters deliver full-rated output current at ambient temperatures up to 75 and 85 degrees Celsius at output voltages of 3.3V and 1.2V, respectively, without the need for heat sinks. These converters are designed for Intermediate Bus Architecture (IBA) and Distributed Power Architecture (DPA) in telecommunications, data processing, computing, and storage applications.

The 30A FPER48T converters of the Sensei Series operate from a 36Vdc to 75Vdc input, and are available in standard output voltages of 3.3V, 2.5V, 1.8V, 1.5V and 1.2V. They are offered in a 2.30 x 0.90 inch (58.4 x 22.8 mm) industry-standard eighth brick footprint and pin-out, and have a low body profile of 0.421 inch (10.7mm), making them particularly suitable for high density card-rack applications.

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 FPER48T converters meet the basic insulation requirements of EN60950 and feature input to output dc isolation of 1500V.

"FDK's leading-edge thermal performance results from electrical, thermal, and packaging design that is optimized for high density circuit card conditions using advanced circuit and thermal design techniques", said Dr. Apurba Roy, executive advisor, FDK Corporation. "With the addition of the 30A FPER48T converters to the Sensei Series, FDK can now provide high performance solutions for isolated output voltages in the range from 12V to 1.2V for IBA and DPA applications."

All Sensei Series products are RoHS compliant. They are manufactured using FDK's state of the art in-house manufacturing processes and systems in Japan. In quantities of 1,000 pieces, the 30A FPER48T converters are priced at $37.00. Samples are available now.

For more information, visit our website at

America: Europe:
Contact: Kats Takeo Contact: Jin Hasegawa
Address: 2270 North First Street, San Jose, California, 95131-2022, U.S.A. Address: Heerdter Lohweg 8940549 Düsseldorf, Germany
Phone: +1-408-922-1163 Phone: +49-211-537-464-0
FAX: +1-408-435-7478 FAX: +49-211-593-549
E-mail: E-mail:

Japan and Other locations:
Contact: Yukihiro Ota
Address: Hamagomu Bldg., 5-36-11 Shimbashi, Minato-ku, Tokyo 105-8677, Japan
Phone: +81-3-5473-4671
FAX: +81-3-3431-9436


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