12V 12.5A AC-DC Power Supply, 2.1mm x 5.5mm Center Positive | SW-12125P
Regulated 12V 12.5A AC-DC Switching Power Supply | Part SW-12125P
The SW-12125P is a high-output regulated AC-DC switching power supply that converts 100-240V AC input to 12V DC @ 12,500mA (12.5A). Its maximum output is 150W, delivered through a 2.1mm x 5.5mm center-positive DC barrel plug. The larger enclosed design is suited to compatible 12V equipment and higher-demand low-voltage projects.
Technical Specifications
- Part Number: SW-12125P
- Input: 100-240V AC
- Output: 12V DC
- Output Current: 12,500mA (12.5A) maximum
- Output Power: 150W maximum
- Connector: 2.1mm inner diameter x 5.5mm outer diameter DC barrel plug
- Polarity: Center positive (+)
- Type: Regulated switching power supply
- Dimensions: 6.5 inches L x 2.5 inches W x 1.5 inches H
Compatible Devices & Common Use Cases
Use the SW-12125P with equipment whose label or original adapter specifies 12V DC, a maximum draw of 12.5A, a 2.1mm x 5.5mm barrel connection, and center-positive polarity. Common device classes may include:
- 12V LED light strips, panels, signage, and LED controllers up to 150W
- Higher-demand CCTV and security equipment with a matching 12V DC input
- Networking, telecom, and communications equipment requiring 12V DC
- Industrial control electronics, sensors, and automation equipment
- 12V audio, AV, hobby, and bench-electronics projects within the 150W limit
Compatibility Check
Before ordering, compare the device label and original adapter. The voltage must be 12V DC, the device must use no more than 12.5A, the plug must be 2.1mm x 5.5mm, and the polarity must be center positive. Confirm that the device connector, wiring, and installation are appropriate for the intended current. Do not substitute this for a device requiring 12V AC, a different barrel size, center-negative polarity, or more than 12.5A. A compatible device may draw less than the adapter's rated current.
Why a High-Output Regulated Switching Power Supply?
A regulated switching design provides a controlled 12V DC output for compatible equipment while supporting a higher total load than a small wall adapter. The 150W maximum is available only when the connected device, connector, wiring, and installation are all rated for the intended load.
Frequently Asked Questions
What are the output specifications of Part SW-12125P?
It provides regulated 12V DC at up to 12,500mA (12.5A), or 150W maximum, through a 2.1mm x 5.5mm center-positive barrel plug.
Can I use this with a 12V device that draws less than 12.5A?
Yes, provided the device also uses DC input, a 2.1mm x 5.5mm connector, and center-positive polarity. The device should not require more than 12.5A.
Can I use this for 12V LED lighting?
It may work for 12V LED strips, panels, signage, or controllers when the total load is 150W or less and the connector, polarity, wiring, and installation are suitable. Higher-power loads need a higher-rated supply.
What is the plug size and polarity?
The plug is 2.1mm inner diameter x 5.5mm outer diameter, center positive. Verify both size and polarity against the device before connecting it.
Is this a 12V AC or 12V DC power supply?
This adapter accepts 100-240V AC input and supplies 12V DC output. It is not a replacement for a device that requires 12V AC.
What are the physical dimensions?
The power supply measures approximately 6.5 inches long x 2.5 inches wide x 1.5 inches high.
