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Unit : mm


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


Probe specifications  R-1
Recommended min. center 1.9 (.0748")

Materials and finishes
Barrel  Brass, Gold plated


The Bare Board Test Probe is a critical component used in the testing and evaluation of printed circuit boards (PCBs). Its purpose is to establish a reliable connection and accurately measure the functionality of electronic components on the PCB.

During the mounting process, specific hole sizes are required to accommodate the Bare Board Test Probe. The recommended mounting hole sizes for this probe are Φ 1.35 /.0531" and Φ 1.4 /.0551". These hole sizes ensure a secure and precise fit for the probe, allowing it to establish a stable connection with the PCB.

The Bare Board Test Probe, designated as R-1, adheres to specific specifications to ensure optimal performance during testing. The recommended minimum center distance between probes is 1.9 (.0748"), providing sufficient spacing to avoid interference and enable accurate measurements.

The materials and finishes used in the construction of the Bare Board Test Probe contribute to its durability and reliability. The barrel is made of brass, which is known for its excellent conductivity and resistance to corrosion. Additionally, the barrel is gold plated, enhancing its conductivity and protecting it from oxidation or tarnishing.

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