Half-brick convertors serve RF power amps

The JHW250 series of DC/DC convertors delivers up to 250W output power in an industry standard half-brick format for radio frequency power amplifier applications.

New from Tyco Electronics Power Systems, the JHW250 series of DC/DC convertors delivers up to 250W output power in an industry standard half-brick format for radio frequency power amplifier applications.

Suitable for wireless basestations and other similar telecomms equipment, the JHW250 provides a lower cost solution for RF power amplifier applications, distributed power architectures and wireless networks.

The JHW250 series power modules are isolated DC/DC convertors that operate over a wide input voltage range of 36 to 75V DC and provide a single, precisely regulated output of 30.2V.

These modules incorporate synchronous rectification technology and innovative packaging techniques to achieve ultra high efficiency - typically 92% at 30.2V with full load.

The five-sided encapsulated case package allows for excellent performance in a strict, thermal environment.

The output is fully isolated, allowing versatile polarity configurations and grounding connections.

In addition, the built-in filtering for both input and output minimises the need for external filtering.

The JHW250 series is rated for a wide operating temperature range of -40 to +85C in an industry standard half-brick package of 57.9 x 61.0 x 12.7mm.

Standard features include: remote on/off, remote sense, low output ripple and noise, over-temperature protection, 2:1 input voltage range, output overcurrent/voltage protection, and output voltage adjustment.

Threaded or nonthreaded through-holes are available to allow for easy mounting to a cold wall; or the addition of a heatsink may be used for high-temperature applications.

The convertors are designed to be fully compliant to RoHS EU Directive 2002/95/EC and to be used at ISO 9001 certified manufacturing facilities.

The JHW250 series power modules can be used in a wide variety of applications, ranging from simple stand-alone operations to an integrated part of a sophisticated power architecture.

Each module is priced at $86.10 for 1000 units.

Samples are available now and standard lead time is stock to 8 weeks.

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