The Hirose DH-27-CT1B is a two-piece backshell and cover for the DH series of circular connectors, designed to terminate a shielded round cable at a 180° straight exit. It accommodates a 27-position connector and provides a metal shell with a steel/plastic cover for EMI containment and mechanical protection. The latch lock and spring lock secure the backshell halves together and to the mating connector housing, making it suited for industrial equipment, test instrumentation, and data-communication gear where cable shielding must be maintained through the connector interface.
Shielding and Locking — What Matters for the Assembly
The shielded metal shell means this backshell is the right choice when the cable shield needs to be terminated at the connector — common in environments with radiated EMI or when the signal integrity requirements call for a continuous ground path from cable braid through the connector to the panel. The latch lock and spring lock hold the two halves together without separate hardware, which saves assembly time and prevents the cover from loosening under vibration. Assembly hardware is included, so no additional fasteners are needed for the cable clamp or strain relief.
Cable Exit and Position Count — Fit Check
The 27-position count matches the Hirose DH-27 plug or receptacle — confirm the mating connector has the same position count before specifying. The round cable type is the intended cable form; flat or ribbon cable would not seat properly in the circular clamp.