TDK-Lambda launches RFE1000 power supplies

Up to 20 per cent output voltage adjustment is possible, enabling the RFE1000 series to be used in a variety of customer-specific applications, including battery charging.

Operating from a universal input of 85VAC to 265VAC, typical applications for the RFE1000 supplies include communications, factory automation and radio-frequency amplifiers.

Efficiency of up to 89 per cent minimises heat dissipation.

The RFE1000-24 ,-32 and -48 power supplies can be used individually or up to eight units can be connected in parallel to form an N+1 redundant power system with optional OR'ing diodes.

Each power supply has variable-speed cooling fans and can operate in temperatures ranging from 0C to +70C.

The RFE has a power density of 10.5W/in3 with dimensions of 305 x 127 x 41mm.

AC input is via a terminal block and DC output is via M5 studs.

Auxiliary outputs are via a JST-type 12-way connector.

Over-voltage, over-current and over-temperature protection are standard features and, for system monitoring, there are opto-isolated signals for DC OK, AC fail and over-temperature warning with a rear-panel light-emitting-diode (LED) indicator for DC OK.

Remote on/off control and remote sense features also come as standard.

Other standard features include single-wire current sharing and an auxiliary 12V 0.25A output with a built-in OR'ing diode.

As well as being EN55022 and FCC compliant (achieving Class B conducted and radiated emission), the RFE1000 series meets UL/EN 60950-1 safety approvals and carries the CE mark.

Harmonic correction meets the EN61000-3-2 standard and the power supplies are backed by a two-year warranty.