Hi-Link HLK-PM03 AC / DC 3.3V Miniature 3.3V 900mA power supply in a housing intended for soldering in a PCB. Description of the pins: AC - supply voltage input: 100-240V AC + Vo - voltage output - plus -Vo - voltage output - minus Specification: - input voltage: 100-240V AC - output voltage: 3.3V DC - max output current: 900mA - efficiency at 220V AC power supply: 70% - external dimensions: 34x20.2x15mm - working temperature: -20 ° C to 60 ° C - permissible ambient humidity: 5-95% - the power supply has the following protections: over-current, short-circuit, thermal https://elecena.pl/product/22604998/hlk-pm03-240v-ac-to-3-3v-dc-3w-900ma-power-supply-adapter 2023-02-22 https://elecena.pl/product/22604998/hlk-pm03-240v-ac-to-3-3v-dc-3w-900ma-power-supply-adapter 2025-10-29