TDK Lambda Americas Inc
TDK World Wide


April 28, 2005 Editor Contacts:
Stan Michelson, Focus Communications

Lambda 300W and 600W Power Supplies Receive SEMI F47 Certification

SAN DIEGO, CA (April 28, 2005) - Lambda announced it has received SEMI F47-0200 certification on its low-cost SWS series 300- and 600-watt power supplies, enabling them to be used in a wide variety of semiconductor fabrication equipment. SEMI F47 is an industry standard for voltage sag immunity.

All SWS300 and SWS600 models accept a wide range of input voltages – from 85VAC to 264VAC – with SEMI-F47-0200 certification granted at full load from 208VAC to 240VAC and at reduced operating power with input voltages from 100VAC to 115VAC.

The SWS300 and 600 are available with output voltages from 3.3V to 48V and currents up to 100 amps. They can deliver up to 600 watts from -10oC to +65°C and derate to 50% load from 50°C to 65°C. Remote on/off, power-fail and current-share signals are standard on the 600W models.

In addition to SEMI F47-0200 certification, the power supplies meet EN55022 and FCC Level B specifications, are CE marked, and approved to UL60950, CSA60950 and EN60950 standards. Moreover, they include active PFC (power factor correction) circuitry to meet EN61000-3-2 standards.

SWS300 and SWS600 power supplies are priced starting at $112 each in 100-unit quantities. More information is available on Lambda’s Web site,

For more than 50 years, Lambda has been a leading provider of standard and custom power supply solutions. The company's broad range of products power industrial, telecommunications, data communications, medical, and test-and-measurement applications worldwide. Lambda's corporate headquarters is at 3055 Del Sol Blvd., San Diego, Calif., 92154; telephone 800-LAMBDA4 (toll free) or 619-575-4400; fax 619-429-1011.

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