The HFC200-W/O and W/G DC/DC converters for wall mounting offer an ultra-wide input voltage range from 14.4 V to 154 V with 200 Watt power. A single converter thus covers all international on-board voltages for rail vehicles (24V, 36V, 72V and 110V) including the tolerance range of +/- 40% required by EN 50155 in one device. This ultra-wide solution is therefore ideal for companies operating throughout Eu-rope to carry out the qualification of assemblies cost-efficiently with a single con-verter.
EN 50155 regarding temperature, shock, vibration, damp heat as well as the railway-specific criteria for EMC according to EN50121-3-2 are met without additional com-ponents. The converter has an integrated power failure bypass of 10 ms which makes the DC/DC converter unique. Due to the high efficiency of up to 91 %, de-pending on the applied voltage, the 200 W output power is available over the com-plete temperature range from -40 to +85°C according to class OT4 ST 1, without any derating.
Overvoltage and overtemperature protection facilitate the design-in of the flyback converter. The converters are no-load and short-circuit proof. It is mounted directly on the chassis for easy heat dissipation (open frame needs three small pads on the bottom), the housing is designed to IP 20. This makes the Conformal Coating con-verter ideal for railway technology and power-hungry applications in harsh environ-ments (e.g. industrial trucks). The insulation strength of 2,2 KV between I/O is partic-ularly noteworthy.
The selection of the PCB material was carefully selected and fire tested according to EN45545-2 R25 and HL 3.
The lightweight plug-and-play solutions are available as versions with single output 12 v or 24 V.
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