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Two small green circuit boards with components and solder points

myVolts

myVolts ZYM119 AC-DC Power Supply Module 100-240V 5V 2A 10W 2pcs

SKU CH-YWBN-4XNV2

Two AC-DC switching modules convert 100-240 V input to a regulated 5 V 2 A output using PWM and a full-bridge design

  • TypeAT
  • Wide input range 100-240V AC suits global mains
  • PWM regulation with full-bridge topology delivers efficient conversion
  • Stable 5V 2A output rated at 10W continuous power
  • Low 30mV ripple noise from 431 precision regulator
  • Two modules included for parallel or backup use

What this module delivers

This myVolts ZYM119 board converts 100-240V mains to a stable 5V 2A output rated at 10W. It suits hobbyists and technicians who need a compact AC-DC module for low-power circuits, test rigs or small embedded builds.

When the upgrade makes sense

The unit replaces bulky linear transformers or unreliable wall warts when space and efficiency matter. The jump is worth it if you need PWM regulation with a full-bridge topology and 30mV ripple noise in a bare-board format.

Installation notes and common issues

Soldering to the input and output pads is straightforward for anyone comfortable with mains-voltage safety practices. The main pitfalls are forgetting an external fuse on the AC side and exceeding the 2A continuous current limit.

Highlights

  • Wide input range 100-240V AC suits global mains
  • PWM regulation with full-bridge topology delivers efficient conversion
  • Stable 5V 2A output rated at 10W continuous power
  • Low 30mV ripple noise from 431 precision regulator
  • Two modules included for parallel or backup use

Specifications

TypeAT

Questions about this item

What are the mounting hole dimensions for the 5V 2A power supply board?

The module uses a full-bridge PWM design with a 431 precision voltage regulator and measures 10W output power at 5V 2A.

Which step is most often missed when wiring the AC 100-240V input to the board?

Connect the live and neutral wires to the marked AC input terminals before applying mains power, ensuring the 50-60Hz supply matches the board rating.

How often should the output ripple noise be checked on this 10W switching supply?

The output ripple noise is specified at 30Mv; verify with an oscilloscope during initial commissioning and after any load changes to confirm stable 5V regulation.

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