The TMR 3-4812WIR is a DC/DC power module manufactured by TRACO Power. It is a wide input range regulated non-isolated module with a voltage input range of 4.5 to 40 Volts and a 12 Volt output rated at 3 Amps. The module has a metal baseplate with a fanless design, allowing it to operate in temperature ranges between -40 and +85°C. It also includes built-in protection against short circuit, over voltage, overtemperature, and overcurrent. The module is design to provide reliable performance in a variety of industrial and automotive applications, such as telecommunication systems, electric power equipment, and vehicle, train and ship electronics.