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9V AC-AC power adapter 1110mA (1.11A) wall transformer with 2.5mm x 5.5mm right-angle barrel plug - AC-091B
2.5mm x 5.5mm right-angle barrel connector tip detail for 9VAC power adapter model AC-091B
Detailed specification label for 9V AC-AC linear power supply model AC-091B showing 120V input and 9VAC 1110mA output
9V AC-AC power adapter 1110mA (1.11A) wall transformer with 2.5mm x 5.5mm right-angle barrel plug - AC-091B
2.5mm x 5.5mm right-angle barrel connector tip detail for 9VAC power adapter model AC-091B
Detailed specification label for 9V AC-AC linear power supply model AC-091B showing 120V input and 9VAC 1110mA output

9V AC-AC Power Adapter 1110mA (1.11A) | 2.5mm x 5.5mm Right-Angle Plug | AC-091B

by PHC Enterprise, Inc.

$13.00 - $13.00
$13.00
$13.00 - $13.00
$13.00

9V AC-AC Linear Wall Transformer ā€” 1110mA (1.11A)

Part AC-091B

The AC-091B is a wall-mount linear AC-to-AC power adapter delivering 9V AC output at 1110mA (1.11A). Its 2.5mm x 5.5mm right-angle barrel plug is useful for equipment with tight spaces or recessed power ports. Use this adapter only when your device specifically requires 9VAC alternating current (~) and the connector dimensions match.

āš ļø Critical Note: This is an AC-AC adapter. It outputs alternating current (~), not DC. A device labeled 9VDC is not compatible. Verify the device label for the ~ symbol or VAC before purchasing.

Technical Specifications

  • Model: AC-091B
  • Input: 120V AC, 60Hz
  • Output: 9V AC @ 1110mA (1.11A)
  • Connector: 2.5mm (ID) x 5.5mm (OD) right-angle barrel plug
  • Type: Wall-mount linear transformer (non-regulated)
  • Safety: UL/cUL or ETL Listed

Common Use Cases & Compatible Devices

  • Specialty Audio Equipment: Equipment that specifies 9VAC input and a 2.5mm x 5.5mm connector
  • Control Electronics: Specialty control equipment requiring 9VAC and up to 1110mA
  • Tight Installation Spaces: Devices where a right-angle plug is preferred for a recessed or closely positioned power port

Common Replacement Compatibility

Use as a replacement only when the original adapter or device label specifies 9VAC, a compatible 2.5mm x 5.5mm connector, and current requirements of no more than 1110mA (1.11A). Confirm the connector fit and AC output requirement before connecting.

Frequently Asked Questions

Q: How do I know if my device needs AC or DC?
A: Check the device power label. AC is shown by the ~ symbol or the letters VAC. DC is shown by VDC or the DC symbol. This adapter is not for DC-only devices.

Q: Will the right-angle plug fit my device?
A: Confirm both connector measurements, 2.5mm inside diameter and 5.5mm outside diameter, along with the available clearance around the power port.

Q: Why can a voltmeter show more than 9V?
A: This is a non-regulated linear transformer. Its no-load voltage can measure higher than the rated output until a device is connected.

Q: Does this adapter work internationally?
A: It is designed for a standard 120V AC, 60Hz wall outlet. Verify your local input-voltage requirements before use.

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