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Compact black rectangular power brick with IEC cord attached

Chicony

Chicony A12-040N1A 12V 3.33A 40W power adapter

SKU CH-80FA-0EQRJ MPN A12-040N1A

A 12 V 3.33 A 40 W AC adapter with 100-240 V 1.0 A 50-60 Hz input and an included power cord

  • Worldwide voltage support from 100 to 240 V input
  • Stable 12 V 3.33 A output for reliable device power
  • 40 W capacity meets original Samsung AD-4012NHF specification
  • Includes power cord for immediate connection
  • Tested for short-circuit, over-voltage and over-temperature protection

Compatible Samsung Replacement Adapter

The Chicony A12-040N1A is a genuine 40W power adapter built to replace the Samsung AD-4012NHF unit. It suits users who need a direct replacement for a lost or damaged original charger. The package includes a detachable power cord for immediate use.

Universal Input With Protective Safeguards

The adapter accepts 100-240V AC input at 1.0A across 50-60Hz, making it suitable for worldwide mains voltages. It delivers a steady 12V DC output at 3.33A. Built-in safeguards protect against incorrect voltage, short circuit and internal overheating during normal operation.

Upgrade From Faulty Or Missing Originals

This unit replaces a failed, lost or physically damaged Samsung AD-4012NHF adapter. The jump is worth it when the original charger no longer powers the device or shows cable wear. It is not for devices requiring a different voltage, amperage or connector polarity.

Highlights

  • Worldwide voltage support from 100 to 240 V input
  • Stable 12 V 3.33 A output for reliable device power
  • 40 W capacity meets original Samsung AD-4012NHF specification
  • Includes power cord for immediate connection
  • Tested for short-circuit, over-voltage and over-temperature protection

Specifications

ModelA12-040N1A

Questions about this item

How do I install the Chicony A12-040N1A adapter and what step is often missed?

Connect the supplied power cord to the adapter's IEC inlet, plug the cord into a 100-240V 50-60Hz mains socket, then insert the 12V 3.33A output plug into the device; the step often missed is verifying the device requires exactly 12V 3.33A before connecting.

What maintenance or replacement will the Chicony A12-040N1A need later?

The adapter has no user-serviceable parts; replace the whole unit if the output cable frays, the barrel plug becomes loose, or the brick no longer delivers a steady 12V 3.33A under load.

What limit appears first on the Chicony A12-040N1A during sustained use?

The 40W maximum output rating is the first limit; drawing more than 3.33A at 12V triggers the internal over-current or over-temperature protection and shuts the adapter down.

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