ZIF Sockets
High current Zero Insertion Force (ZIF) test sockets populated with 50A rated contacts.
The Tooltronics Zero Insertion Force (ZIF) Test Socket allows devices to be inserted and removed without applying force, protecting delicate leads from stress and damage. The socket utilizes our HPK-FS Series flat serrated contacts to deliver reliable electrical performance and repeatable test results.
A cam and slide design engages the contacts once the device is in position, securely gripping the leads to provide a stable electrical connection during testing.
Optional device guides ensure proper device orientation during insertion, helping prevent misalignment, bent leads, and contact damage. This design makes the ZIF Test Socket well suited for laboratory, engineering, and production test environments.

Key Features
- Zero Insertion Force mechanism
- 50A rated HPK-FS Kelvin contacts
- High durability
- Custom footprint support
Zero Insertion Force (ZIF) Sockets for High-Current Testing
Tooltronics, Inc. Zero Insertion Force (ZIF) Test Sockets are engineered to allow devices to be inserted and removed with zero insertion force, helping prevent damage to sensitive device leads during insertion and extraction. Designed for demanding engineering, validation, and production environments, Tooltronics ZIF sockets provide reliable electrical connections, repeatable device positioning, and long service life.
Tooltronics ZIF sockets utilize HPK-FS (Flat Serrated) Kelvin contacts designed specifically for ZIF applications. The flat serrated contact surface helps provide secure, low-resistance electrical connections while maintaining accurate force-and-sense Kelvin measurements for demanding high-current test applications.
Designed for High-Reliability Testing
Our ZIF test sockets are commonly used in applications requiring frequent device insertion and removal while maintaining stable electrical performance and minimizing operator handling stress.
Common Applications
Power electronics testing
DC-DC converter testing
Burn-in and validation fixtures
Automated test equipment (ATE)
Aerospace and defense electronics
High-current production testing
Features
Zero insertion force socket design
HPK-FS flat serrated Kelvin contact systems
Reliable low-resistance electrical connections
Accurate force-and-sense Kelvin measurements
Reduced stress on device leads and components
Durable construction for repeated cycling
Custom package and lead configurations available
Wide range of socket material options available
Made in USA manufacturing
Family-owned and operated since 1962
FAQ
What are HPK-FS Kelvin contacts?
HPK-FS contacts are flat serrated high-current Kelvin contacts designed specifically for ZIF socket applications requiring secure electrical connections and accurate low-resistance measurements.
What are the benefits of a ZIF socket?
ZIF sockets allow devices to be inserted and removed with zero insertion force, helping reduce device lead damage while improving testing efficiency and repeatability.
Are custom ZIF socket configurations available?
Yes, Tooltronics, Inc. specializes in custom-engineered ZIF socket solutions designed around specific package styles, lead configurations, and testing requirements.
Request a Quote
Request a quote
Discuss a custom ZIF socket application
Send us your device drawing
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Need a Custom Solution?
Tooltronics specializes in custom engineering. Contact our team to discuss your specific testing requirements.
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