The HTSW series from Samtec are high-temperature terminal strip headers designed for reliable signal connections. These unshrouded through-hole headers feature a 0.025-inch (0.635mm) square post and are compatible with various Samtec connector series such as SSW, SSQ, SSM, ESW, ESQ, BCS, BSW, CES, SLW, IDSD, IDSS, SMSD, and SMSS. The series offers a wide range of standard pin counts, terminal lengths, and options for single, dual, or triple rows (indicated by -S, -D, -T, -Q). They have a pitch spacing of 2.54mm, support high operating temperatures from -55°C to 105°C, and are made with phosphor bronze terminals and natural liquid crystal polymer insulators. The connectors meet UL and CSA standards and feature optional locking clips and leads for securing connections.