Wx-dc12003 Schematic Online

The WX-DC12003 is a single floating design. It consists of two independent, isolated linear regulator channels sharing a single mains transformer and front panel.

The WX-DC12003 is a 3.5W to 4W encapsulated power module. Its compact size (

PRIMARY SIDE (High Voltage) ‖ SECONDARY SIDE (Low Voltage) ‖ AC L ──[ Bridge Rectifier ]─┬──[ Flyback ] ‖ ┌───[ Schottky Diode ]───┬─── Output V+ (5V) │ Transformer ‖ │ │ AC N ───────────────────────┼───[ Primary ]─╫──┘ [Filter Cap] │ ‖ │ [Filter Cap] ‖ ├─── Output V- (GND) │ ‖ │ GND ‖ [Optocoupler] ‖ │ [ Primary Controller ] ◄───╫───────────────────────────┘ (Built-in Power MOSFET) ‖ (TL431 Reference Feedback) 1. The Primary Input Stage (AC to High-Voltage DC) wx-dc12003 schematic

OUTPUT (pin2) --- L1 (33µH) --- VOUT+ (5V) | D1 (SS34) cathode D1 anode --- GND

The is a widely used, compact, and affordable isolated switching power supply (SMPS) module , frequently employed in hobbyist electronics, IoT projects, and small-scale industrial applications. Designed to convert high-voltage AC (or DC) to a stable 5V DC output, this "black box" module often leaves users curious about its inner workings. The WX-DC12003 is a single floating design

Built-in safeguards against overvoltage, overcurrent, overheating, and short circuits Schematic Overview and Circuit Design

If you are looking for specific replacement parts or conducting a repair, I can try to help you identify: Alternative, similar modules Specific IC part numbers Share public link Its compact size ( PRIMARY SIDE (High Voltage)

If you are using the schematic to repair a unit, look for these common failure points:

The WX-DC12003 is a versatile tool for hobbyist projects where space is at a premium and costs must be low. However, its "generic" nature means you should always test your specific batch

On the output side, a high-efficiency Schottky diode rectifies the high-frequency AC pulses from the transformer back into DC. 4. Output Filtering and Stabilization

Schottky diodes and smaller filter capacitors.