Checking the mechanical dimensions before mating ensures all coaxial connectors in a test setup are operating within their specified tolerances. In addition to positioning and alignment, the depth of both male and female contacts is critical to maintaining secure, accurate, and repeatable connections.
Understanding Connector Tolerances
One critical part of connector inspection is verifying the position of the center conductor relative to the connector mating interface and specified tolerance range. When this position shifts outside of specification, both performance and reliability may be affected.
In practice, connector measurements can fall into three conditions:
- Recessed: Incomplete contact leading to intermittent connections and signal reflections.
- Within Tolerance: Proper contact and repeatable performance.
- Protruding: Risk of damaging the mating connector due to over-insertion.
The interactive example below lets you interpret real gage readings and compare them against connector tolerance limits to determine connector condition.
Verifying Pin Depth with Gage Kits
Connector gage kits provide a reliable way to verify the mechanical dimensions of both male and female contacts before mating.
Maury Microwave connector gage kits are designed to provide accurate, repeatable pin depth measurements across a wide range of connector types.
For pin depth verification, a reference standard is first attached to the gage, allowing the device to be zeroed at the ideal pin depth for a given connector interface.
Once calibrated, the connector under test is measured against this reference to determine how far it deviates from the nominal position.
By comparing the measured value to the manufacturer’s specified tolerance range, engineers can quickly determine whether a connector is acceptable for use, avoiding measurement errors and damage to components.