3.5 Steel Mobile jack (TRRS 3.5mm Male) Code: 39831649

A 3.5mm TRRS (Tip, Ring, Ring, Sleeve) male mobile jack is a 4-conductor audio connector. Unlike standard 3-pole (TRS) headphone plugs, the extra ring allows the single connector to carry stereo audio and microphone input. It is the standard for smartphone headsets, lavalier microphones, and mobile credit card readers.

Pinout Standards (Top to Bottom)

There are two wiring configurations for TRRS jacks. While the first two conductors are always the same, the last two are swapped depending on the device:

1. Tip (Left Audio):Carries the left channel for stereo sound.
2. Ring 1 (Right Audio):Carries the right channel for stereo sound.
3. Ring 2 (Ground):The return path for the audio signals.
4. Sleeve (Microphone/Video):

1. CTIA Standard(Modern Androids, Apple, and PC/Laptops): Sleeve is the Microphone.
2. OMTP Standard(Older Nokia, some older Androids): Sleeve is the Ground, and Ring 2 is the Microphone.

Common Uses & Adapters

• TRRS to TRS Adapters:If you plug a standard 3.5mm TRS microphone into a smartphone (TRRS jack), it likely won’t register. You will need a TRS to TRRS Adapter to correctly route the microphone signal to the sleeve.
• Headphone Splitters:Used to split the TRRS jack into two separate 3.5mm female jacks (one for audio out, one for mic in) to plug standard PC headsets into a laptop or console.