PCBA Test Probe Pogo Pin P166 Series Applied to ICT In-circuit test probes are mainly used for testing electrical performance of in-circuit components on PCB and the connection between circuit networks. It could quantitatively measure components such as resistors, capacitors, inductors, crystal oscillators, and perform functional tests of diodes, triodes, optocouplers, transformers, relays, operational amplifiers, power supply modules and integrated circuits. We will introduce in-circuit test probe P166 series here. Its diameter is 1.66 mm and the total length is 48.4 mm. Various tip styles, for example, B3, H, S, T, E, C, U, G, etc., are available for test probes. For details, please check below parameters. Technical Specifications Recommended Rated Stroke: 5 mm Spring Force: 500 gf (11 oz) Materials Contact Barrel: Brass, Nickel Plated Spring: Music Wire, Nickel Plated Plunger: Steel, Nickel Plated semiconductor test probes, in-circuit test probes, radio frequency probes, harness probes, battery contact probes, switching probes, big-current probes, spring probes, universal complex test probes, wafer probes, and so on.