The econ connect TB40RT is a red jack socket with a pin diameter of 4 mm, ideal for use in various electronic applications. It is commonly employed in laboratory settings due to its durable construction and reliability. https://elecena.pl/product/28264511/econ-connect-tb40rt-jack-socket-4mm-red-pin-diameter-bulk-1pc 2025-04-07 https://elecena.pl/product/28264511/econ-connect-tb40rt-jack-socket-4mm-red-pin-diameter-bulk-1pc 2026-06-20