Mean Well GSM40A12-P1J Power Supply 40W 12V

The GSM40A12-P1J is a 40W desktop power supply with a regulated 12V DC output. It is rated for up to 3.34A output current. This makes it suitable for equipment that requires a 12V supply within that power range.

Yes. This model is medical safety approved and specified as providing 2 x MOPP isolation between primary and secondary. It also lists compliance with medical safety standards including ANSI/AAMI ES60601-1 and EN60601-1-11.

The GSM40A12-P1J has a universal input range of 80 to 264VAC, and it also supports 113 to 370VDC input. That wide range helps it fit international mains environments. It uses a 2-pole IEC320-C8 AC inlet.

The standard output plug for this model is the P1J barrel type. It is specified as 2.1 mm inner diameter by 5.5 mm outer diameter by 11 mm length, center positive, tuning fork type. Buyers should match that plug format to their device requirements.

This power supply includes short circuit, overload, over voltage, and over temperature protection. The overload protection is specified at 105% to 160% of rated output and uses hiccup mode with auto-recovery. These built-in protections help support safer operation in demanding equipment environments.

The specified working temperature range is -30°C to +60°C, with reference to the output derating curve. The unit is fully enclosed in a plastic case and includes a power-on LED indicator. It is also designed for low no-load power consumption of less than 0.1W.