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Ten small green PCB power modules with solder pins

Vszerda

Vszerda HLK-20M12 220V to 12V 20W Step-Down Power Supply Module (10 PCS)

SKU CH-WN5Z-6G7VB

Pack of ten AC-DC modules converting 90–265 Vac to 12 V at 20 W with 3 kV isolation and short-circuit protection

  • Compact design fits tight spaces with industry's smallest volume
  • Wide 90 to 265Vac input suits global mains voltages
  • Clean 12V output with low ripple and low noise
  • Built-in short-circuit and over-current protection with self-recovery
  • 3000Vac isolation separates input from output for safety

Compact AC-DC Step-Down Module Pack

This pack contains ten HLK-20M12 modules that convert mains voltage to a regulated 12 V output rated at 20 W. They suit engineers, hobbyists and installers who need multiple isolated low-voltage supplies for embedded controls, sensor arrays or smart-home relays.

Verify Mains Compatibility and Load

Confirm your local supply sits within the 90 to 265 Vac universal input range before wiring. Ensure the total connected load stays below the 20 W rating so the built-in short-circuit and over-current protection does not trigger during normal operation.

Ultra-Thin Enclosure With 3000 Vac Isolation

The ultra-thin form factor lets the module sit in tight junction boxes or behind panels without crowding adjacent components. Input-to-output isolation rated at 3000 Vac means the low-voltage side remains safe to touch even if the mains side experiences a transient surge.

Ciri-ciri utama

  • Compact design fits tight spaces with industry's smallest volume
  • Wide 90 to 265Vac input suits global mains voltages
  • Clean 12V output with low ripple and low noise
  • Built-in short-circuit and over-current protection with self-recovery
  • 3000Vac isolation separates input from output for safety

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What comes in the 10-piece pack and do I need any extra parts to wire it up?

The pack contains ten HLK-20M12 modules ready to solder or plug into a PCB; no additional components are required for basic operation.

Should I pick the 12 V 20 W version or is there another voltage option?

This listing only offers the fixed 12 V 20 W model; if your project needs a different output voltage you would need a separate module.

How does the 20 W rating hold up when the module is mounted inside a sealed enclosure?

At 20 W continuous load the module runs cool thanks to low ripple and efficient conversion, but keep some airflow around the pins for long-term reliability.

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