2.5mm 4 Pole Jack Plug Solder Connector - Right Angled

A 4-pole connector is often used for stereo audio along with a microphone (like on smartphone headsets) or for composite video signals. The exact configuration depends on the device it's connecting to.

No, this is a 2.5mm connector, which is smaller than the standard 3.5mm headphone jack. You must use a cable terminated for a 2.5mm connection.

Nickel plating on the contacts provides a durable, corrosion-resistant surface that ensures a good electrical connection and longevity.

The strain relief should grip the outer jacket of the cable securely. This prevents any pulling force from being transferred directly to the delicate solder joints inside the connector.

While it can carry audio signals, its suitability for specific digital audio protocols depends on the signal type and the requirements of the connected devices. It is most commonly used for analog audio.

A 3-core cable, often with an earth wire, is typically recommended for 4-pole applications. The cable's outer diameter should not exceed 4mm.

Verify all solder connections are secure and correct. Check that the cable wires are connected to the appropriate pins on the 4-pole connector according to your device's pinout diagram. Ensure the device itself is functioning correctly.

Inspect solder joints for cold joints or bridges. Ensure the cable is securely held by the strain relief and not pulling on the solder points. Check the cable for any internal breaks.

Ensure the cable diameter does not exceed the 4mm limit. Check for any debris inside the connector. Verify that the plug is the correct 2.5mm size and not a 3.5mm plug.