Spring-loaded Pogo Pin In-circuit Test Probe PICT102-BK(7.6) for PCBA Inspection 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 PICT102-BK(7.6) series here. Its barrel diameter is 1.02 mm and the total length is 33 mm. The barrel of this pogo pin is made from phosphor bronze plated with gold and nickel. The plunger is made from SK4 plated with nickel and gold. The inner spring is made from music wire plated with gold and nickel. This test probe could withstand the current up to 3 Amps. The typical maximal contact resistance is about 50 milliohms. The plunger can be pressed at a distance of up to 6.8 mm. But it is better to be pressed at a distance of 4.3 mm at most in working environments. Otherwise, the spring will probably be damaged severely under constant pressure. When the plunger is pressed at a distance of 4.3 mm, the loaded force is about 205 gf, which fluctuates to a tolerance. For details, please check below parameters. Technical Specifications Recommended Current Rating: 3 Amps, continuous Contact Resistance: 50 milliohms Full Stroke: 6.8 mm Rated Stroke: 4.3 mm Spring Force: 205 gf (7 oz) at load 4.3 mm Materials Contact Barrel: Phosphor Bronze, Au on Ni Plated Spring: SWP-A/B, Au on Ni Plated Plunger: SK4, Au on Ni Plated Company Information Centalic Technology Development Ltd. was founded in 1980. Our products include 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.