Tooltronics Logo
TOOLTRONICSINC

TO-Style Test Sockets

Reliable Kelvin test sockets for TO-220, TO-247, and other transistor outline packages.

Products/TO-Style Test Sockets
The Engineer's Notebook

The Tooltronics TO Test Socket provides reliable electrical contact and secure mechanical support for Transistor Outline (TO) packages during testing and validation. Precision-machined components ensure accurate pin alignment and consistent contact force for repeatable results in high-cycle applications.

The socket design minimizes stress on device leads during insertion and removal while maintaining proper device orientation to reduce operator error and improve test efficiency.

Suitable for laboratory, engineering, and production environments, the TO Test Socket can be configured for various TO package styles, pin counts, and lead diameters, with custom materials and mounting options available.

TO-Style Test Sockets

Key Features

  • Kelvin test socket design
  • Accommodates long leads
  • Long lead-in guide and support
  • Customizable for various TO packages
Below the Fold

Reliable TO-Style Test Sockets for Power Electronics Testing

Tooltronics, Inc. manufactures precision TO-style test sockets designed for reliable electrical connections and repeatable testing of transistor outline packages in engineering, validation, and production environments. Our sockets provide secure mechanical support, accurate device alignment, and dependable low-resistance electrical performance for demanding electronic test applications.

Designed to minimize stress on device leads during insertion and removal, Tooltronics TO-style sockets help improve test consistency and extend socket life in high-cycle testing environments.

Configurable for Your Application

Tooltronics TO-style test sockets can be configured for a wide range of package styles, pin counts, lead diameters, and mounting requirements. These sockets are commonly populated with LPK-100 and/or LPK-125 Kelvin contacts for accurate low-resistance measurements and reliable high-current performance.

Common Applications

  • Power electronics testing

  • Burn-in and production testing

  • Automated test equipment (ATE)

  • Aerospace and defense electronics

Features

  • LPK-100 and LPK-125 Kelvin contact systems

  • Reliable low-resistance electrical connections

  • Accurate device positioning and orientation

  • Reduced stress on device leads

  • Replaceable contact systems for easier maintenance

  • Custom package and lead configurations available

  • Durable construction for repeated cycling

  • Wide range of socket material options available

  • Made in USA manufacturing

  • Family-owned and operated since 1962

FAQ

What contact systems are available?

TO-style test sockets are commonly populated with LPK-100 and/or LPK-125 Kelvin contacts depending on the application requirements and current capacity needed.

Are custom TO-style test sockets available?

Yes. Tooltronics, Inc. specializes in custom-engineered TO-style test socket solutions designed around your specific device package and testing application.

Request a Quote

  • Request a quote

  • Discuss a custom application

  • Send us your device drawing

  • Contact engineering support

Need a Custom Solution?

Tooltronics specializes in custom engineering. Contact our team to discuss your specific testing requirements.

Contact Engineering