The TSW series from Samtec offers unshrouded through-hole terminal strip headers with 2.54 mm pitch and 0.025 inch square posts. These connectors are designed for reliable connections in industrial applications, available in single, dual, or triple row configurations with various pin counts and terminal lengths. Constructed with phosphor bronze terminals and a black glass-filled polyester insulator, they operate in temperatures from -55°C to 125°C, meet UL and CSA standards, and offer optional locking features for secure connections, providing high signal integrity and durability.