Switch Probes Specialty Test ProductsBoard Test Spring Probes Smiths Interconnect offers a wide range of spring contact probes to meet your testing requirements and has long been recognized as the worlds largest probe manufacturer. With over 60 different probe series that includes our standard Board Test Fixture Probes as well as our Specialty Test Probes, we provide a full portfolio designed for general purpose test on bare boards, loaded printed circuit boards, surface mount assemblies and other forms of test. MICRO SERIES PROBES ROTATOR PROBES The Micro probe series range in pitch from 0.20 (0.51 mm) to Ideal for non-clean and lead-free applications, this aggressive 0.030 (0.76 mm) pitch and are typically between half an inch probe rotates 90 at the rated travel, virtually drilling through to an inch in length. contaminants with a low spring force. STANDARD PROBES HIGH CURRENT PROBES Our standard probes range in pitch from 0.039 (1.00 mm) We offer two different high current probe designs in four to 0.187 (4.75 mm). Within most series, there are multiple different pitches. The SH series features a bias ball, which length and travel options, including more aggressive probes is the most aggressive biasing technique to aid in assuring dimensionally equivalent to the standard probes. a low and consistent resistance, cycle after cycle. The SHE Series features a bias spring, an effective biasing technique for many applications. DOUBLE-ENDED PROBES & RECEPTACLES SWITCH PROBES Double-ended probes feature both a top-side and bottom- A Switch Probe is a spring contact probe and receptacle that side compliant plunger. Double-ended receptacles are has two individual current paths. One current path is closed, available with a permanent bottom-side plunger and a the other is open and after a designated travel the second replaceable probe on the top side. They are also available current path closes. with both a top and bottom-side replaceable probe. LEAD FREE PROBES THERMOCOUPLE PROBES The Lead Free probe series is based on our ICT Probe Series. The Thermocouple Probe is an ungrounded, thermally The plunger material, plating and tip geometry have been conductive probe used for the measurement of variations in optimized to provide less wear and contamination build-up temperature. We offer two Thermocouple Probes: Type T for while using a moderate spring force of 7 to 8 ounces. up to 220F, and Type K for up to 350F. ICT PROBES COAXIAL PROBES The ICT probe design features a bifurcated barrel with four Our Coax Probes provide a low noise, controlled impedance separate fingers. The barrel is compliant and formed against signal path with reliable, easy connect/disconnect options. the plunger, thus eliminating any gap between the plunger Our designs include a spring-loaded signal probe and a and barrel. ICT probes are more accurate and stable in spring-loaded shielding plunger for the ground. resistance than standard designs.