cpm-39 / r-39

cpm-39 / r-39

MODEL:CPM-39 / R-39

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Unit : mm


hole size
Φ 0.8 /.0315”


Probe specifications CPM-39 / R-39
Recommended min. center 1.0(.0394")
Full travel 4.32(0.252" )
Current rating 2A
Contact resistance 75mΩ
Spring force 250g

Materials and finishes
Plunger SK4,Gold,plated
Barrel Phosphor bronze, Gold/Ni plated
Spring SUS,Gold plated


To mount the probe onto the PCB, a mounting hole size of Φ 0.8 /.0315" is required. This specific dimension allows for secure and precise installation of the probe into the PCB, ensuring a stable and reliable connection for effective testing.

The Probe specifications for this model are identified as CPM-39 / R-39. These specifications outline the key characteristics and capabilities of the probe. The recommended minimum center distance between probes is 1.0(.0394"), which provides an optimal spacing to avoid interference or cross-talk between adjacent probes on the PCB. This spacing is crucial for accurate and reliable electrical measurements during testing.

The probe has a full travel distance of 4.32(0.252"), enabling it to reach the desired test points on the loaded PCB effectively. With a current rating of 2A, the probe can handle electrical currents of up to 2 amperes without compromising its performance.

The contact resistance of the probe is specified as 75mΩ, ensuring low resistance and minimal signal loss during testing. This characteristic is essential for obtaining accurate and reliable electrical measurements.

The probe is equipped with a spring force of 250g, providing the necessary pressure for establishing proper contact with the test points on the PCB. This ensures reliable and consistent measurement results.