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TDK Announce 200W Half-brick DC-DC Converters


TDK Corporation has announced the introduction of the 200W TDK-Lambda brand PYH200 series of DC-DC converters. Featuring a 12:1 ultra-wide input range of 14 to 160Vdc, these board mount products are packaged in the industry-standard half-brick format measuring 61.0 x 57.9 x 12.7mm (L x W x H). The housing is silicon potted to provide a high level of resistance to shock and vibration. This is beneficial for applications compliant to EN 50155, the standard for electronic equipment used on railway rolling stock

The PYH200 is available with 12V, 15V, 24V and 48V nominal outputs, adjustable over a -20% to +15% range for non-standard voltages. All models have overcurrent, output-overvoltage and overtemperature protection. Standard functions include remote sense, remote on/off, frequency synchronisation to an external clock, and the ability to extend the hold-up time by connecting an electrolytic capacitor to the BUS terminal.

The power modules have efficiencies of up to 90% and can operate with a base plate temperature of -40 to +100°C. Optional heatsinks facilitate convection cooling, forced air cooling or the modules can be conduction-cooled.

Input to output and input to baseplate isolation is 3,000Vac with an output to baseplate isolation of 500Vac. Certification is to the IEC/UL/CSA/EN 62368-1 safety standards with the CE and UKCA marks for the Low Voltage and RoHS Directives. The PYH200 in combination with a typical test setup has been tested to meet the EN 50155, EN 45545-2, EN 61373 and EN 50121-3-2 railway standards.

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