3.5mm Stereo Audio Plug with Metal Casing (AD45)
Part number: AD45Connectors & Headers
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Prices updated: 13 Oct 2026
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About this product
A 3.5 mm stereo (TRS) audio plug with a metal casing, used to connect headphones, speakers and audio devices to amplifiers, sound cards and DIY audio modules. Its three contacts carry the left channel, right channel and ground.
Specifications
- Plug size
- 3.5 mm
- Type
- Stereo (TRS, 3-conductor)
- Casing
- Metal
- Contacts
- 3 (tip, ring, sleeve)
Frequently asked questions
How do I wire the tip, ring and sleeve?
The tip carries the left channel, the ring carries the right channel, and the sleeve is ground. Keep this order consistent when you solder the cable.
Does it fit a mono 3.5 mm socket?
It fits standard 3.5 mm stereo jacks. A mono plug is a two-contact (TS) type and carries only one channel, so a stereo plug in a mono socket will not give you both channels.
