The Hirose GT13SC-2/1S-R is a retainer — not a housing or terminal — designed for the GT13 series of connectors. It fits GT13 housings with 3 positions, locking the crimped terminals in place so they don't back out under vibration or cable strain. The body is molded in gray Polybutylene Terephthalate (PBT), a material that holds up to shop-floor solvents and temperature cycling typical of industrial control cabinets.
Where It Goes
This retainer is specific to the GT13 series 3-position housings. You push it into the housing after the crimp terminals are seated — it acts as a secondary lock, giving a positive tactile confirmation that each terminal is fully home. Without it, terminals can drift out of the cavity over time, especially in equipment that sees thermal cycles or machine vibration.