13.8V 1A AC-DC Power Supply, 2.1 x 5.5mm Center Positive | SW-131V
Regulated 13.8V 1A AC-DC Switching Power Supply
Part SW-131V converts 100–240V AC wall power to regulated 13.8V DC at up to 1000mA (1A). This wall-mount adapter provides up to 13.8W through a 2.1mm x 5.5mm center-positive barrel plug for equipment specifically requiring this electrical specification.
Technical Specifications
- Part: SW-131V
- Input: 100–240V AC, 50/60Hz
- Output: Regulated 13.8V DC
- Maximum output current: 1000mA (1A)
- Maximum output power: 13.8W
- Connector: 2.1mm inner diameter x 5.5mm outer diameter male DC barrel plug
- Polarity: Center positive (+), outer barrel negative (−)
- Supply type: Regulated switching AC-DC adapter
- Form factor: Wall-mount with two flat AC prongs
- Use environment: Indoor use only
Applications & Replacement Selection
Use Part SW-131V as a replacement supply only when the equipment documentation or original adapter specifies regulated 13.8V DC, a maximum demand of 1A or less, and a matching 2.1mm x 5.5mm center-positive connection. No device-specific compatibility is claimed.
Important: 13.8V DC is not the same as 12V DC. Do not substitute this supply for a 12V-only device, an AC-output transformer, or a center-negative adapter. A plug that fits does not establish electrical compatibility.
Check Before Ordering
- Voltage and output type: Confirm the device accepts 13.8V DC.
- Current: Confirm both operating and startup demand stay within 1A.
- Polarity: Confirm center positive.
- Connector fit: Confirm 2.1mm inner diameter, 5.5mm outer diameter and suitable insertion length. Plug length is not specified here.
- Installation: Confirm indoor use and AC outlet/prong compatibility.
Regulated Switching Output
The regulated switching design provides a fixed 13.8V DC output. This is a power supply, not a dedicated battery charger; do not connect it directly to a battery as a substitute for the correct charging equipment.
Frequently Asked Questions
What voltage and current does Part SW-131V supply?
It supplies regulated 13.8V DC at up to 1000mA (1A), with a maximum output of 13.8W.
Is this interchangeable with a 12V power adapter?
Not automatically. Use it only if the equipment manufacturer explicitly permits 13.8V DC input and all other requirements match. Do not use it for equipment rated only for 12V DC.
What connector and polarity does it use?
It uses a 2.1mm inner diameter x 5.5mm outer diameter male barrel plug. The center contact is positive and the outer barrel is negative.
Can it power a device that draws less than 1A?
Yes, provided the device accepts regulated 13.8V DC, its operating and startup demand do not exceed 1A, and polarity and connector fit match.
Does it produce AC or DC output?
DC output. It converts 100–240V AC, 50/60Hz input to 13.8V DC and is not a replacement for an AC-output transformer.
Is it a battery charger or outdoor power supply?
No. It is an indoor-use regulated power supply, not a dedicated battery charger or weatherproof adapter.
