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Compact black wall adapter with two-pin plug and attached power cord

Phihong USA Inc.

Phihong USA Inc. PSA18U-120 12V 1.5A 18W power adapter

SKU CH-RFQW-9PH54 MPN PSA18U-120

Supplies 12V at 1.5A from a 100-240V input with an included power cord

  • Worldwide input voltage 100-240V for travel flexibility
  • 12V 1.5A output delivers 18W steady power
  • Includes power cord for immediate use
  • Manufacturer ISO 9000 and ISO 14000 certified quality
  • Tested for short-circuit, over-voltage and over-temperature protection

18W 12V AC power adapter for low-power devices

The Phihong USA Inc. PSA18U-120 delivers a regulated 12V output at 1.5A for a total of 18W. It accepts a universal 100-240V input at 50-60Hz, making it suitable for global use. The unit includes a detachable power cord for immediate connection. It targets users replacing a lost or damaged original adapter for compatible hardware.

Continuous 18W output

The adapter is designed to supply its rated 18W continuously rather than only in short bursts. Integrated safeguards protect against incorrect voltage, short circuit and internal overheating during extended operation. Each unit is tested for wire integrity, jack function and the absence of internal loose particles before dispatch. This verification supports reliable long-term power delivery.

Passive cooling with silent operation

The enclosure uses natural convection without a fan, so acoustic output is effectively zero in normal use. Minor cosmetic flaws such as dust or scratches may be present on the body but do not affect thermal performance. Power draw at the wall is rated at 43-63VA under load. The adapter meets ISO 9000 and ISO 14000 manufacturing quality standards.

Highlights

  • Worldwide input voltage 100-240V for travel flexibility
  • 12V 1.5A output delivers 18W steady power
  • Includes power cord for immediate use
  • Manufacturer ISO 9000 and ISO 14000 certified quality
  • Tested for short-circuit, over-voltage and over-temperature protection

Specifications

ModelPSA18U-120

Questions about this item

Does the 18W adapter stay cool and quiet when it runs continuously?

The unit has no fan and relies on passive cooling; the 12V 1.5A output at 18W produces modest heat that the plastic case dissipates silently.

What must I already own to use this 12V 1.5A supply with my device?

You need a device that accepts a 12V DC barrel jack with centre-positive polarity and draws no more than 1.5A.

Will this 100-240V input adapter work safely with older 12V gear that lacks modern protection?

Built-in safeguards against incorrect voltage, short circuit and internal overheating protect legacy equipment connected to the 12V output.

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