The Hirose GT5N-4PP-HU is a 4-position housing from the GT5 series, molded in gray Polybutylene Terephthalate (PBT). The PBT body provides good dimensional stability and resistance to common industrial solvents, making it a typical choice for internal harnesses in control cabinets, power supplies, and automotive auxiliary circuits where the connector sees moderate temperature exposure but no direct washdown.
Terminal Fit and Assembly
This housing is designed for use with Hirose M terminals — the crimp contacts that insert from the rear and lock into the cavity. No other terminal family is listed as compatible. The PBT cavity walls provide the primary retention for the terminal latch; the housing itself carries no current. When building the harness, confirm you have the correct M-series crimp tool and that the wire gauge matches the terminal barrel range. The housing ships in a Bag package, typical for manual assembly or low-volume production runs.