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AMPSEAL 35-Position Waterproof Wire-to-Board Connector delivers robust, sealed connectivity for harsh automotive environments. Engineered with IP67-rated protection, it ensures reliable signal and power transmission in engine bays, undercarriages, and extreme conditions. Featuring tool-less installation and a wedgelock system, it simplifies assembly while maintaining secure connections.
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776164-4
Tyco
The 35-Position Wire-to-Board Connector 776164-4 functions as a critical electrical interface for demanding automotive environments. Engineered as part of the AMPSEAL series, this female terminal housing establishes a secure bridge between wire harnesses and printed circuit boards. It facilitates stable signal and power routing across engine bays, chassis, and exposed bulkheads. Molded from dense, gray PBT GF (polybutylene terephthalate with glass fiber), the exterior feels rigid to the touch and resists deformation under mechanical stress. An integrated interfacial sealing mechanism achieves an IP67 rating, actively blocking moisture, dust, and automotive fluids. Supporting 35 distinct circuit positions, this component handles complex routing requirements for engine control units (ECUs), sensor networks, and actuator modules. The tool-less assembly design, combined with a tactile wedgelock mechanism, streamlines the installation process and ensures immediate visual and physical confirmation of proper seating.
Modern vehicles rely heavily on the ECU to process real-time data. This wire-to-board connector establishes a rigorously sealed pathway between the main circuit board and the external wiring harness. Key advantages for ECU integration include:
Agricultural machinery, construction equipment, and all-terrain vehicles face relentless exposure to mud, standing water, and severe mechanical shock. The IP67-rated sealing of this connector housing excels in these environments, actively preventing abrasive grit and moisture from degrading the metal contacts. Built to endure extreme operational demands, the connector absorbs continuous chassis vibration without loosening. The reinforced latching mechanism delivers an audible click upon mating, assuring assembly technicians of a locked connection even in noisy, poorly lit manufacturing environments. This reliability minimizes electrical faults during heavy-duty operations.
Environmental protection remains paramount for exposed electrical systems. This waterproof design utilizes precision-molded silicone seals that compress tightly around the wire insulation, forming an impenetrable barrier against liquid ingress. Achieving strict IP67 standards, the housing withstands temporary submersion and direct spray during vehicle washdowns. This barrier extends the operational lifespan of both the connector and the mated circuit board. Furthermore, the component aligns with stringent USCAR, LV214, and GMW3191 automotive testing protocols, alongside UL and RoHS compliance, ensuring broad market acceptance and environmental safety.
To eliminate the risk of accidental disconnection, this housing integrates a primary latch and an advanced wedgelock system. The design incorporates Terminal Position Assurance (TPA) and Connector Position Assurance (CPA) mechanisms. These dual-locking features provide clear tactile feedback during assembly, physically preventing the connector from mating if the terminals are not fully seated. This fool-proof architecture drastically reduces assembly line errors, completely mitigating the risk of terminal backout caused by thermal expansion or intense mechanical vibration during transit.
Electrical efficiency relies on optimal contact integrity. The system utilizes premium copper alloy contacts, available with specific gold or tin plating options to match distinct conductivity requirements. Gold plating minimizes electrical resistance for sensitive sensor signals, while tin plating provides a highly reliable, cost-efficient solution for standard power delivery. Operating with a precise 1.3mm contact size, the connector effectively balances current-carrying capacity with spatial efficiency. It supports a broad range of AWG wire sizes and specific voltage/current ratings essential for complex power distribution networks.
The exterior shell is injection-molded from specialized composite materials designed for extreme automotive environments. The compact, rectangular footprint features a minimized pin pitch and a low-profile exterior, allowing engineers to maximize circuit density within confined spaces.
| Base Material | PBT GF (Polybutylene Terephthalate with Glass Fiber) |
| Thermal Endurance | Operates reliably across a broad temperature range from -40°C to +125°C. |
| Chemical Resistance | Resists degradation from brake fluid, transmission oil, battery acid, and UV exposure. |
| Structural Integrity | Rigid exterior resists deformation under intense mechanical stress and chassis vibration. |
Streamlining the manufacturing process, this connector utilizes tool-less backshell accessories that alleviate wire strain and protect the harness exit point. The distinct gray finish enhances visual contrast against standard black wiring looms, accelerating identification during complex harness routing. Clearly molded position indicators on the housing guide technicians during pin insertion, reducing the likelihood of cross-wiring. For long-term serviceability, individual terminals can be extracted and replaced using standard depinning tools, eliminating the need to discard the entire housing during routine maintenance.
We provide comprehensive OEM and ODM engineering support to align this 35-pin connector with specific manufacturing requirements. Our technical team modifies housing dimensions, alters contact configurations, and develops custom tooling to match proprietary system architectures. From initial concept drawings to rapid prototyping and mass production, we facilitate a streamlined development cycle. To support automated assembly lines, we offer flexible packaging options, including Tape & Reel and specialized tray formats. These supply chain solutions ensure exact integration into automated pick-and-place machinery, backed by reliable lead times for large-scale production runs.
Every 776164-4 connector is backed by a comprehensive 3-year warranty, guaranteeing freedom from material defects and workmanship inconsistencies. Our dedicated support infrastructure includes remote technical troubleshooting, detailed assembly documentation, and immediate replacement for any non-conforming units. We also conduct specialized training sessions for procurement and assembly teams, focusing on best practices for wire crimping and connector mating. Dedicated account managers oversee every phase of the procurement process, ensuring consistent inventory availability and responsive communication for all bulk orders.
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