7.5V 2.4A AC-DC Power Supply, 2.1 x 5.5mm Center Positive | SW-72A
SW-72A 7.5V 2.4A AC-DC Switching Regulated Power Supply converts 100–240V AC input to regulated 7.5V DC output for compatible low-voltage electronics and equipment. Its 2.1mm x 5.5mm center-positive barrel plug and wall-mount design make it a practical replacement or project power source when the device specifications match exactly.
Important compatibility note: Confirm the device requires 7.5V DC, draws no more than 2.4A, uses a 2.1mm ID x 5.5mm OD barrel jack, and is center-positive before connecting. Connector fit alone does not confirm electrical compatibility.
Technical Specifications
- Model: SW-72A
- Input: 100–240V AC
- Output: Regulated 7.5V DC
- Maximum output current: 2.4A (2,400mA)
- Maximum output power: 18W
- DC connector: 2.1mm ID x 5.5mm OD barrel plug
- Polarity: Center positive
- Form factor: Wall mount
Common Use Cases & Compatible Devices
The SW-72A may be suitable for compatible LED accessories, control equipment, networking or security accessories, and electronics or hobby projects that specify 7.5V DC input. These are application examples, not guaranteed device matches. Always compare the device label or manufacturer documentation with every specification above.
Compatibility Checklist
- The device input is 7.5V DC, not 7.5V AC or another voltage.
- The device current requirement is 2.4A or less.
- The jack accepts a 2.1mm ID x 5.5mm OD barrel plug.
- The required polarity is center positive.
- The available mains power is within the adapter’s 100–240V AC input range.
Frequently Asked Questions
What output does the SW-72A provide?
It provides regulated 7.5V DC output at up to 2.4A, or 2,400mA, with a maximum output power of 18W.
Is this an AC or DC power supply?
It accepts 100–240V AC input and provides 7.5V DC output. Check that your device specifically requires 7.5V DC.
What connector and polarity does it use?
The adapter uses a 2.1mm ID x 5.5mm OD barrel plug with center-positive polarity.
How can I confirm compatibility?
Match the device’s voltage, current requirement, connector dimensions, and polarity to the specifications on this page. A plug that physically fits is not enough to confirm compatibility.
Can I use it with a device that needs more than 2.4A?
No. The device should require no more than 2.4A. Using a supply with insufficient current capacity can cause unreliable operation or other issues.
Is the SW-72A designed for wall mounting?
Yes. This model has a wall-mount form factor. Confirm that the physical layout and access around the outlet suit your installation.
