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Unit : mm


hole size
Φ 0.914 /.036”
hole size
Φ 0.95 /.0374”


Probe specifications  CPM-0
Recommended min. center 1.27 (.050")
Full travel 2.54 (0.1")
Current rating 1.5A
Contact resistance 70mΩ
Spring force 30g / 60g / 80g / 120g
code for customized products

Materials and finishes
Plunger Sk4 / PhBr / NI plated
Barrel Phosphor bronze, Gold plated
Spring Stainless Steel


The probe is carefully engineered with specific hole sizes to ensure a precise fit during installation. The hole sizes available for mounting are Φ 0.914 /.036" and Φ 0.95 /.0374", providing flexibility for different PCB designs.

To ensure accurate testing, a recommended minimum center distance of 1.27 (0.050") is advised. This spacing allows for proper alignment between adjacent probes, preventing any interference during the testing process. The full travel distance of the probe is 2.54 (0.1"), ensuring sufficient contact with the PCB's contact points for reliable measurements.

In terms of electrical specifications, the Bare Board Test Probe has a current rating of 1.5A, indicating its ability to handle electrical currents of up to 1.5A without compromising performance. The contact resistance is specified at 70mΩ, ensuring minimal resistance for efficient signal transmission.

The probe incorporates a spring mechanism to provide the necessary force for establishing contact with the PCB's contact points. Different spring force options are available, including 30g, 60g, 80g, and 120g, allowing for customization based on specific testing requirements.

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