The TE Connectivity 1-1564526-1 is an 18-position plug housing from the Heavy Duty Sealed Connector Series, also known as the MCP 1.5K family. It is a two-row, 4.00 mm pitch panel-mount housing designed for sealed wire-to-wire or wire-to-device interconnects in harsh environments.
Key Features and Termination
The connector uses a slide-on fastening system and includes a mounting flange for secure panel attachment. The 0.236" (6.00 mm) row spacing provides room for the larger 1.5K contact cavity, which accepts wire gauges typical of power and signal circuits in automotive and industrial harnesses. The sealed construction with the mounting flange means this housing is meant for bulkhead or enclosure-wall pass-through where the connector sees moisture, dust, or washdown.
What the 18 Positions and 4.00 mm Pitch Mean for Your Assembly
The 18-position count matches a 2x9 circuit layout, common in multi-sensor or multi-actuator harness junctions. The 4.00 mm pitch is wide enough to route 18 circuits through a single connector without forcing a large panel cutout, while the 6.00 mm row spacing gives the crimp tooling and wire dress room inside the cavity. For the board layout engineer: this is a panel-mount connector, not a PCB header — the termination is crimp-to-wire, so the footprint is on the harness side, not the board.