3.5mm Female Headphone Jack Connector 5 Pin PCB Mount (2 Pieces)

The 3.5mm Female Headphone Jack Connector 5 Pin PCB Mount is a compact audio connector designed for mounting directly onto a printed circuit board (PCB). It is used to connect headphones, earphones, speakers, microphones, and other audio devices that use a standard 3.5 mm audio plug. This connector is widely used in audio equipment, multimedia devices, communication systems, embedded electronics, DIY audio projects, and educational electronics. The pack contains 2 PCB-mount connectors, making it suitable for multiple projects or replacements.

The connector is made from a durable insulated plastic housing with five metal terminals (pins) and a precision-engineered 3.5 mm socket. The metal contacts are typically made from copper alloy or phosphor bronze with nickel or tin plating to provide excellent electrical conductivity, corrosion resistance, and long service life. The PCB-mount design allows the connector to be securely soldered onto a circuit board for stable and reliable connections.

The working principle of the 3.5mm Female Headphone Jack Connector is based on mechanical and electrical contact. When a compatible 3.5 mm male audio plug is inserted into the socket, the internal spring contacts press firmly against the conductive sections of the plug. These contacts create reliable electrical connections that allow audio signals to pass between the external audio device and the PCB circuit. The connector is designed to maintain low contact resistance, ensuring clear and uninterrupted audio transmission.

The five-pin configuration provides additional switching or signal-routing functionality compared to standard three-pin connectors. Depending on the connector design, the five pins may include Left Audio (L), Right Audio (R), Ground (GND), and two switch contacts. The switch contacts can automatically detect when a headphone plug is inserted or removed, allowing the circuit to disconnect internal speakers or trigger other control functions. The exact pin configuration may vary depending on the manufacturer.

The connector supports standard 3.5 mm TRS (Tip-Ring-Sleeve) and, in many versions, TRRS (Tip-Ring-Ring-Sleeve) audio plugs used for stereo audio and headsets with microphones. It is suitable for both analog audio input and output applications.

The applications of the 3.5mm Female Headphone Jack Connector include headphone sockets, earphone connections, portable speakers, audio amplifiers, MP3 players, multimedia systems, communication equipment, microphone interfaces, DIY audio circuits, embedded systems, consumer electronics, robotics, educational electronics, prototype development, laboratory experiments, and PCB-based audio devices.

The advantages of the connector include compact size, reliable electrical contact, easy PCB mounting, low contact resistance, durable construction, long service life, compatibility with standard 3.5 mm audio plugs, support for stereo audio, built-in switching functionality (depending on the model), and simple integration into electronic circuits.

In conclusion, the 3.5mm Female Headphone Jack Connector 5 Pin PCB Mount (2 Pieces) is a reliable and versatile audio connector designed for PCB-based electronic circuits. Its durable construction, secure mounting, excellent signal transmission, and compatibility with standard 3.5 mm audio plugs make it an ideal component for audio equipment, embedded systems, consumer electronics, DIY electronics, educational projects, and prototype development.