TDK Lambda Americas Inc
TDK World Wide


June 14, 2006 Editor Contacts:
Stan Michelson, Focus Communications

Lambda Launches Tough 500W Harsh-Environment Power Supply

SAN DIEGO, CA (June 14, 2006) - Lambda has launched a new harsh-environment 500-watt power supply, the LZSa500-3, with a unique feature set and safety-agency approvals not commonly found on a standard off-the-shelf supply. A wide temperature range, compliance with MIL-STD-810 standards for shock and vibration, and the ability to operate in explosive gas atmospheres make the LZSa500-3 ideal for use in a variety of applications, such as COTS, outdoor displays and chemical processing.

The rugged new power supply is available with a nominal 24-volt output, adjustable from 18 to 29.4 volts to accommodate non-standard system voltages, and can provide a full load of 21-amps output current from -40°C to +60°C, de-rating linearly to 60% load at 71°C ambient.

The LZSa500-3 accepts a wide input range – from 85 to 265VAC, 47 to 440Hz – and has active power factor correction. It also complies with SEMI F47 standards for input droop, down to 100VAC at full load.

Output ripple and noise is a low 75 millivolts peak-to-peak, and the unit is designed to provide 20-millisecond hold-up and ride-through to avoid nuisance tripping during electrical interruptions.

The LZSa500-3 is equipped with remote on/off, remote resistance or voltage programming, user-adjustable over-voltage protection, DC good, inverter fail, current-share, and a 200kHz synchronization signal.

The unit comes in a 4.25- x 4.75- x 10.25-inch package and has been tested to MIL-STD-810E shock and vibration standards (method 516.4 proc. I, II, IV and VI; method 514.4, categories 1 and 9).

The new Lambda power supply meets Class B EMI standards (radiated and conducted) and is safety-approved to UL60950-1, EN60950-1, UL508, FM3600, FM3611 and FM3810 specifications. It also meets IEEE C62.41 (6kV/30 Ohm, criteria A) and EN61000-4-X immunity standards. All units are RoHS-compliant and carry the CE mark.

The LZSa500-3 is available now, priced at $620 each in 50-unit quantities. More information can be found at Lambda’s Web site,

For more than 50 years, Lambda Americas has been a leading provider of power supply solutions. The company’s broad range of products provides power for industrial, telecommunications, data communications, medical, and test-and-measurement applications worldwide. Lambda is a unit of TDK Corporation (NYSE:TDK), a leading global electronics company, and is headquartered in Tokyo. More information is available at 800-LAMBDA4 (toll free) or 619-575-4400; fax is 619-429-1011.

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