The FLP 09R is a recent addition to Absopulse Electronics’ dc/dc converter series designed for low power railway requirements. With a height of just 20mm, this compact 25W unit is suitable for applications with stringent space restrictions. It is fully encapsulated with a thermally conductive MIL-grade silicon rubber compound with a UL94V-0 flammability rating. The FLP 09R operates at full specification over a -40VC to 70VC cold plate temperature range.

The nominal input voltages are 24V, 36V, 48V, 72V, 96V or 110V dc with wide input ranges; the unit delivers single outputs of 3.3V, 5V, 12V, 24V or 48Vdc. Other input and output voltages are available on request.

The FLP 09R meets EN 50155 for electronic equipment used on railway rolling stock as well as EN 55022 Class B and EN50121-3-2 conducted and radiated EMI standards. It is designed to meet IEC 61373 Categories 1 A and B and Category 2 shock and vibration standards. The unit has 3kVdc input to output isolation, inrush current limiting and reverse polarity protection at the input. Over-voltage, over-current, short circuit and thermal protection are standard.