RH71216Y-1.8-11/174663-2 12 V, 12 Position, Automotive Housing for Male Terminals

Product Overview

The RH71216Y-1.8-11/174663-2 is a 12-position, non-sealed automotive connector housing designed specifically for male terminals (tab contacts). As part of the Mark II+ series, this rectangular, wire-to-wire connector is optimized for 12V nominal voltage architectures and is intended for interior or protected under-hood applications where environmental sealing is not required. Its robust PBT thermoplastic housing, polarization features, and high current capability make it a reliable choice for power circuit connections in passenger vehicles, light-duty trucks, and industrial equipment.

Key Features & Benefits
1. Electrical Performance

Voltage Rating: Designed for 12V DC nominal voltage, with a maximum operating voltage of 12 VDC. This makes it ideal for standard automotive electrical systems, including lighting, HVAC, infotainment, and body control modules.

Contact Size & Current Capacity: Equipped for 1.8mm tab contacts (mating tab width 1.8 mm / 0.07 in). While exact current rating depends on the specific terminal used, the 1.8mm contact size typically supports moderate to high power circuits. Circuit Application: Dedicated for power circuits, ensuring reliable energy distribution.

2. Mechanical Design & Assembly

Connector System: Wire-to-wire configuration with cable mount (free-hanging) installation, allowing flexible placement without requiring a panel or PCB.
Primary Locking Feature: Locking occurs on the terminal itself, ensuring secure retention and positive tactile feedback during assembly.
Mating Alignment: Features polarization (keyed alignment) to prevent incorrect mating, reducing assembly errors and protecting terminals from damage.

3. Dimensional Specifications

Connector Height: 26.85 mm (1.06 in)
Product Length: 37.5 mm (1.48 in)
Product Width: 36.5 mm (1.44 in)
Color: Black
Housing Material: PBT (Polybutylene Terephthalate) thermoplastic – offers good dimensional stability, heat resistance, and chemical resistance to common automotive fluids (oils, fuels, coolants).

4. Environmental & Thermal Limits

Operating Temperature Range: -30°C to +105°C (-22°F to 221°F). Suitable for passenger compartments, trunk areas, and well-ventilated engine bays where temperatures remain below 105°C.
Sealable: No – this is a non-sealed housing. It is intended for dry or protected environments. Do not use in areas exposed to direct water spray, high pressure washing, or prolonged moisture.
Material & Compliance
Housing Material: PBT thermoplastic – naturally resistant to creep, moisture absorption, and thermal aging. It is halogen-free and compliant with automotive industry material standards.
Contact Type: Male tab contacts (not included). Compatible with 1.8mm tab terminals available from multiple suppliers.
Mixed & Hybrid Connector: No – all 12 positions accept the same 1.8mm tab contact type, simplifying inventory management and assembly tooling.

Installation & Handling Notes

Mating Connector: Requires a corresponding female connector housing with 1.8mm receptacle contacts (not included). Ensure the mating housing uses the same pitch (4.8 mm) and row spacing (5.6 mm).
Terminals: Use standard 1.8mm tab male terminals – crimp tooling recommended for consistent electrical and mechanical performance.
Cable Exit: Fixed 180° straight exit. Ensure sufficient clearance behind the connector for wire bending radius.
Polarization Key: Visually align the polarization features before mating. Do not force – incorrect orientation will prevent full engagement.
Unmating Force: Due to the terminal primary locking feature, disconnect by pulling the housing body, not the wires.