Io Audio Technologies Releases ¼” Phone Jack Series

Io Audio Technologies’ new TJ Series of ¼” phone jacks features a slim design with a high packing density and fits an 11.4mm chassis cutout. The compact form factor of these connectors makes them perfect for situations where space saving is a priority or space for a connector is limited. It features black, plastic housing with either a fully-threaded nose or a half-threaded nose for design flexibility when mounting on a variety of panel thicknesses. 

The TJ Series provides a 3 normally closed switched-contact design, making them a perfect solution for design-in applications where the termination method is to a printed circuit board and independent control of switched contacts is needed.

“This product expands our ¼” connector offerings to satisfy market demand for rugged interconnect solutions in this form factor,” said Randy Rivero, Product Manager at Io Audio Technologies. “We aim to provide all the necessary parts for your next design with drop-in replacement solutions.”

The TJ Series is suited for applications such as intercom systems, testing equipment, audio consoles, pedals, and instruments. The series is available with 4 (TS) or 6 (TRS) horizontal, silver-plated pins for improved corrosion resistance and for extending the useful life of the connectors. To assist in mounting stability, plastic mounting hardware (nuts and washer) is included. 

TJ Series features:

  • 4 (TS) or 6 (TRS) Pin Versions
  • Fully or Half-Threaded Versions to accommodate a wide range of panel thicknesses
  • Plastic Mounting Hardware (nuts and washer) Included
  • Silver Plated Pins
  • Fits a 11.4mm Chassis Cutout
  • Slim Design for High Packing Density

For more information about the TJ Series and to find an authorized distributor, please visit