3.5mm SMT Horizontal Jack for Audio Output – Model: PJ-3288A

Extech 407750 Sound Level Meter Headphone Jack's Product Operating Principle

1. When a 3.5mm plug is inserted, it makes a secure connection with the internal spring contacts for the left, right, and ground audio channels.

2. The jack creates a stable electrical path, channeling the audio out signal from the device's main circuit board to the connected headphones or cable.

3. Its mechanical design ensures a consistent insertion and extraction force, providing a reliable connection and preventing signal loss from loose plugs.

Masimo Rad-G Pulse Oximeter Headphone Jack's Product Functions

1. Serves as the primary headphone output port on portable and desktop electronic devices for private audio listening.

2. Functions as a "Line Out" to send a fixed-level audio signal to an external amplifier, mixer, or recording device.

3. Enables compact and efficient product design through its SMT form factor, allowing for streamlined PCB layout and assembly.

4. Delivers consistent, high-fidelity stereo audio transmission with minimal interference, ensuring excellent signal quality.

Midland GXT1000VP4 GMRS Two-Way Radio Headphone Jack's Product Applications

1. Industrial: Integrated into the Extech 407750 Sound Level Meter, where it acts as the analog output for logging high-resolution 3.5 audio level data to other devices.

2. Medical: Used in the Masimo Rad-G Pulse Oximeter, providing a headphone port for discrete, audible monitoring of patient alarms and vital sign indicators in quiet clinical environments.

3. Communications: Serves as the external jack on the Midland GXT1000VP4 GMRS Two-Way Radio, enabling the connection of a headset or speaker microphone for hands-free operation.