Fanless ATX Supply Covers Many Bases

Bicker Elektronik’s DC161W dc/dc ATX power supply targets applications ranging from embedded box PCs to automotive. Including cable management for individual wiring harness configurations, the supply offers an expanded set of operating modes for in-vehicle applications, so-called vehicle ignition functions for intelligent shutdown control with deep discharge protection for the vehicle battery.


The dc/dc converter boasts 93% efficiency and specifies a MTBF of 990,000 hours. It is built for 24/7 continuous operation in the extended temperature range of -20°C to +70°C. With a wide-range input of 6 to 36 Vdc, the DC161W is viable for use in a variety of applications, such as Industry 4.0 / IIoT, gateways, medical technology, in-vehicle systems, digital signage, POS / POI and many more.

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To ensure an optimal thermal connection of the power components on the underside of the board to the computer housing, the DC161W comes with a matching heat-conducting pad and an additional mounting hole in the middle of the board. Reverse polarity protection at the input, short-circuit and overvoltage protection at all outputs and an over-temperature protection provide additional operational safety.


The DC161W can be operated both in standard power supply mode and in vehicle mode, for example for CarPCs. The ignition-dependent ATX power supply as well as start and shutdown of the supplied CarPC can be individually configured via extended timing modes and a mainboard on/off connection (Intel ATX 12V compatible). The selectable auto-latch feature ensures, for example, safe startup and shutdown of the CarPC, even with a very short ignition boost. The integrated deep discharge protection constantly monitors the voltage of the vehicle battery and switches off the DC161W automatically as soon as the battery voltage falls below a defined threshold for more than one minute.


In addition, the DC161W has a remote on/off connector for the car amplifier to turn it off in time to prevent audible feedback during CarPC system startup. At the outputs (+ 3.3V, + 5V, + 12V, -12V, + 5V-Standby) no base load is required, so that latest mainboards with special energy-saving modes can be safely supplied. For more engaging details and specs, checkout the DC161W datasheet.

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