Projection height
The projection height describes the distance by which a Contact Probe or component protrudes from a receptacle, Receptacle, or Test Fixture. It is an important parameter for proper contact in the test setup, as it determines the available spring travel and ensures a secure electrical connection without mechanical overload.
FAQ
The projection height determines how far a Contact Probe is compressed during contact. It must be designed so that the Contact Probe operates within the optimal working travel range to ensure stable Spring force and low Contact resistance.
It is typically ensured by mechanical measurement in the Test Fixture or by defined press-fit and installation depths of the Contact Probes and Receptacles.
An incorrect total length can lead to incorrect positioning, insufficient travel, or unstable contact in the Test Fixture.
Further terms
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