SJ1-3525NG-PI 3.5mm Female Stereo TRS Audio Jack with 2 Switches THT

The SJ1-3525NG-PI is a 3.5mm female stereo TRS audio jack connector designed for printed circuit board mounting using through-hole / THT terminals.

With a stereo TRS configuration and 3-conductor / 5-contact structure, this model includes two internal switches, allowing it to be used in circuits requiring plug insertion detection, signal switching or automatic disconnection of another circuit, such as an internal speaker.

Its right-angle mounting allows the audio plug to be inserted parallel to the PCB, making it useful for enclosures, side panels, compact equipment and space-limited designs.

This connector is suitable for analogue audio applications, headphones, signal inputs and outputs, electronic modules, portable equipment, audio interfaces and repair of devices using a 3.5mm stereo jack plug.

The pink PBT body, silver-plated contacts and solder termination make this component a practical choice for manufacturing, maintenance, prototyping and replacement of compatible connectors.

Main features

3.5mm audio jack connector
Manufacturer / brand: Same Sky, formerly CUI Devices
Part number: SJ1-3525NG-PI
Series: SJ1
Connector type: audio jack
Gender: female
Format: stereo TRS
Number of conductors: 3 conductors
Number of contacts: 5 contacts
Internal switch: two switches
Compatible diameter: 3.5mm audio plug
Listed actual diameter: 3.60mm
Mounting: THT / through-hole
Orientation: right angle
Termination: solder
Shielding: unshielded
Rated voltage: 12VDC
Rated current: 1A
Minimum operating temperature: -25°C
Maximum operating temperature: +85°C
Body colour: pink
Housing material: PBT, polybutylene terephthalate
Contact material: brass, copper alloy and stainless steel
Contact plating: silver
Listed mating depth: 14mm
Listed packaging type: tray
Product status: active
Main application: PCB audio connection with switching function
Suitable for audio, plug detection, prototypes, repair and electronic projects

Recommended applications

3.5mm audio inputs and outputs
Electronic equipment with stereo jack connection
Headphones and small audio systems
Plug insertion detection
Automatic signal switching
Internal speaker disconnection when headphones are inserted
DIY electronics projects
Printed circuit boards
Audio modules
Portable equipment
Jack connector repair
Analogue audio interfaces
PCB prototyping
Replacement of compatible connectors

Important note

Before use, always confirm the pinout, PCB footprint, connector orientation, number of contacts, internal switch operation, voltage, current and compatibility with the plug being used.

The SJ1-3525NG-PI is a 3-conductor stereo TRS connector with 5 contacts and includes two internal switches. It is different from simple 3-contact models without switching. For replacement, confirm whether the original equipment uses switching contacts and whether the pinout matches the existing circuit.

This component is intended for PCB mounting using THT soldering. Checking the technical drawing, connection diagram and PCB layout before assembly is recommended.