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Unit : mm


hole size
Φ 1.35 /.0531”
hole size
Φ 1.4 /.0551”


Probe specifications  CPM-111
Recommended min. center 1.9(.0748")
Full travel 6.4(0.252" )
Current rating 5A
Contact resistance 50mΩ

Materials and finishes
Plunger Be Cu,Au plated
Barrel Brass, Gold plated
Spring Stainless



During the mounting process, specific hole sizes are required to securely install the Loaded Board Test Probe onto the PCB. The recommended mounting hole sizes for this probe are Φ 1.35 /.0531" and Φ 1.4 /.0551". These precise hole sizes ensure a proper fit of the probe, allowing for a secure and accurate installation onto the PCB. The secure fit guarantees reliable electrical contact between the probe and the loaded PCB, facilitating precise and dependable testing and measurement.

The Loaded Board Test Probe is designed with the CPM-111 specification. This specification determines the probe's characteristics and capabilities. The probe has a recommended minimum center distance of 1.9 (.0748"), which ensures adequate spacing between probes for effective testing and prevents interference or crosstalk.

The Full travel of the probe is 6.4 (0.252"), indicating the maximum distance the probe can travel during the testing process. This full travel distance allows for thorough testing of the loaded PCB, ensuring comprehensive evaluation of its electrical performance.

The probe has a current rating of 5A, indicating its capability to handle a maximum current of 5 amperes during testing without compromising its performance or safety. Additionally, the probe exhibits a low contact resistance of 50mΩ, which ensures accurate and reliable electrical contact between the probe and the PCB.

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