RH7088C1-1.3-21/776286-1 12 V, 8 Position, Plug, Automotive Housing for Female Terminals

Detailed Product Description

The RH7088C1-1.3-21/776286-1 is a high-performance, sealable 8-position plug housing connector engineered for 12V automotive wire-to-board and wire-to-panel applications. This rectangular connector is designed for female socket-type contacts with a 1.3mm contact system, capable of carrying up to 17A per contact. Featuring a black PBT housing, keying codes 2 and 4, 3-row configuration, and an extended operating temperature range of -40°C to 125°C, this fully sealable plug delivers reliable power and signal transmission in harsh environments including engine compartments, underbody applications, and outdoor equipment.

Product Type Features

This connector features a rectangular shape, providing efficient space utilization and ease of handling during harness assembly. It is a non-mixed, non-hybrid connector, meaning all 8 positions accept identical 1.3mm socket-type contacts, simplifying inventory and assembly processes. The connector and housing type is Plug – this is the male side of the connection system that typically mounts to the end of a wire harness and plugs into a corresponding receptacle header on a board or panel.

The connector is fully sealable (Sealable: Yes) , offering excellent protection against moisture, dust, salt spray, and other environmental contaminants. This makes it suitable for underhood, exterior, and off-road applications where exposure to water or chemicals is expected.

The primary locking feature is integrated in the housing, not on the terminal itself. This design means the housing provides the primary retention force for the terminals, offering robust mechanical hold and consistent performance across multiple mating cycles.

The connector system supports both wire-to-board and wire-to-panel configurations. The connector terminates to wire and cable, making it versatile for harness assembly.

Configuration Features

The housing provides 8 positions arranged in 3 rows. This three-row configuration offers high contact density in a compact footprint, allowing more circuits to be routed through a relatively small connector body.

Electrical Characteristics

The connector is rated with operating voltage (VDC) of 159V and operating voltage (VAC) of 250V, while the nominal voltage architecture is 12V. These ratings indicate that while the connector is intended for 12V automotive systems, it has significant voltage safety margins – capable of handling up to 159V DC or 250V AC without breakdown. This provides excellent creepage and clearance protection for 12V applications, making the connector robust against voltage spikes and transients common in vehicle electrical systems.

Body Features

The cable exit angle is 180° (straight) , facilitating straightforward cable management and minimizing bend stress on wires exiting the housing. The primary product color is black, providing a professional appearance along with good UV resistance and thermal stability. The connector and keying code is specified as 2 and 4 – this indicates the plug uses a dual-keying configuration, allowing it to mate only with receptacles that have matching keying codes (2 or 4). This prevents mismating with other connectors in the same family.

Contact Features

The housing accepts socket-type contacts (female terminals) with a contact size of 1.3mm. The mating pin diameter is precisely 1.3 mm (0.051 in) , ensuring consistent, low-resistance electrical contact. The maximum contact current rating is 17A per contact – this is a high current rating that places this connector in the power distribution category. 17A capacity allows this connector to handle loads such as motors, solenoids, lighting circuits, power distribution, and battery connections.

Mechanical Attachment

Mating alignment is provided with a keyed alignment type. Keyed connectors use asymmetric plastic features that physically prevent incorrect mating or cross-mating with connectors having different keying codes. The plug features keying codes 2 and 4, ensuring proper orientation with matching receptacles.

Terminal Position Assurance (TPA) is not provided (No) . Without TPA, proper terminal insertion relies on the primary locking feature integrated into the housing. Installers should ensure terminals are fully seated until they lock securely.

Strain relief is not provided (Without) – for applications with significant cable movement or vibration, external strain relief such as cable ties, heat shrink boots, or conduit is recommended.

The connector mounting type is Cable Mount (Free-Hanging) , offering maximum flexibility for harness assembly. The plug mounts to the end of a cable or wire harness and then plugs into a board-mounted or panel-mounted receptacle.

Housing Features

The housing is manufactured from Polybutylene Terephthalate (PBT) . PBT is a high-performance engineering thermoplastic known for:

Excellent dimensional stability – maintains precise tolerances across temperature and humidity variations

High heat resistance – retains mechanical properties at 125°C maximum operating temperature

Low moisture absorption – critical for sealable connectors to maintain dimensional stability

Good chemical resistance – withstands automotive fluids including oil, fuel, and coolants

Dielectric strength – appropriate for 159V DC / 250V AC ratings

The centerline (pitch) between adjacent contacts is 4 mm (0.157 in) . This 4mm pitch provides adequate creepage and clearance distances for the 159V DC / 250V AC ratings while accommodating the 1.3mm contacts and 17A current capacity.

Dimensions

Connector Height: 34.5 mm (1.35 in)
Product Length: 27.4 mm (1.08 in)
Product Width: 38.3 mm (1.5 in)
Row-to-Row Spacing: 4 mm (0.157 in)

The connector measures approximately 38mm wide, 34.5mm high, and 27.4mm long. The row-to-row spacing matches the contact pitch at 4mm, creating a consistent grid pattern. The 34.5mm height accommodates the sealable housing construction and 1.3mm contact system.