23Pin Black TE AMPSEAL Sealed Connector Wire-to-board Connector 770680-1 – High-Performance 3-Row Automotive Grade Solution

Engineered for extreme environments, the TS30256-23P-21 is a 23-pin black female wire-to-board connector designed to deliver reliable, weatherproof electrical connections in demanding automotive, marine, and off-road applications. As part of the advanced AMPSEAL Sealed Connector Series, this housing ensures robust signal integrity and long-term durability where moisture, dust, vibration, and temperature fluctuations are constant challenges. Ideal for use in engine control units, lighting modules, infotainment systems, and power distribution boards, it provides a secure interface between wiring harnesses and PCB-mounted electronics. With full compatibility across a range of vehicles including cars, yachts, and UTVs, this sealed connector supports seamless integration in both OEM and aftermarket upgrades.

Key Features & Technical Highlights

• Model Number: TS30256-23P-21

• Connector Type: Female, Wire-to-Board

• Pin Count: 23 Circuits (3-Row Configuration)

• Mating Plug: TS30256-23P-11 (Male)

• Housing Material: PBT+GF15% or PA66+GF30% – High-strength, heat-resistant thermoplastic with glass fiber reinforcement

• Terminal Type: Copper Alloy / Brass / Phosphor Bronze – Ensures low resistance and stable conductivity

• Sealing Technology: Integrated mat seal with per-circuit diaphragm; seals break upon terminal insertion, maintaining IP-level protection

• Secondary Locking: Two-piece design with locking wedge to prevent contact backout under vibration

• Pitch: 4.0 mm centerlines for dense, reliable signal routing

• Compliance: IATF 16949, ISO14001, RoHS – Manufactured under strict automotive quality and environmental standards

• Quality Assurance: 100% inspected before dispatch – Includes continuity, retention, and visual checks

• Minimum Order: 1,000 pieces

• Lead Time: 2–15 days from order confirmation

• Application Scope: Automotive electronics, marine systems, UTVs, industrial controls, and ruggedized wire harness assemblies

Advanced Sealing & Locking System for Maximum Reliability

Unlike standard connectors, the TS30256-23P-21 features a sophisticated sealing mechanism that protects each circuit individually. The mat seal contains a built-in diaphragm in every cavity, which is ruptured only when a terminal is inserted—ensuring a tight, waterproof seal around the conductor. If a terminal is later removed, a dedicated sealing plug can be installed to reseal the unused position, preventing moisture ingress and contamination. This makes the connector ideal for under-hood, underbody, or exterior-mounted electronics where exposure to water, dirt, and chemicals is unavoidable.

In addition, the two-piece housing design incorporates a locking wedge that secures all terminals after insertion. Once the wedge is seated, it applies uniform pressure across the contact array, eliminating the risk of terminal pull-out due to thermal cycling or mechanical shock. This secondary locking feature is essential for maintaining signal continuity in high-vibration environments such as off-road vehicles, marine engines, and heavy-duty machinery.

Precision 3-Row Layout on 4.0 mm Grid

The connector’s 23-pin configuration is arranged in three rows with a 4.0 mm pitch, enabling high-density wiring in compact spaces. This layout is optimized for efficient PCB mounting and streamlined harness routing, reducing clutter and improving serviceability. The symmetrical design supports balanced mechanical loading during mating, minimizing stress on solder joints and ensuring long-term board-level reliability. Whether used in dashboard control modules, sensor interfaces, or power management units, this structured pin arrangement supports consistent performance across all signal types—power, analog, and digital.

Universal Use Across Automotive & Marine Platforms

The TS30256 series is widely used in modern vehicle platforms where sealed, high-current, or mixed-signal connections are required. Its compatibility with both PBT and PA66-based materials allows customization based on thermal and mechanical needs—PA66+GF30% for higher heat resistance, PBT+GF15% for improved dimensional stability. The black housing blends seamlessly with factory wiring looms, making it a preferred choice for OEM replacements and professional aftermarket installations. Common applications include engine management systems, lighting harnesses, audio control boards, and auxiliary power distribution units.

Custom OEM/ODM Manufacturing Services

We support full custom development for brands, distributors, and system integrators. Our capabilities include custom mold creation, modified pin counts, tailored sealing solutions, private labeling, and specialized packaging. Whether you need a variant of the TS30256 series or a completely new sealed connector design, our engineering team provides rapid prototyping, testing, and scalable production with full documentation and compliance reporting.

Quality You Can Trust

Every TS30256-23P-21 connector is produced in a certified manufacturing environment adhering to IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance control). Batch testing and 100% pre-shipment inspection guarantee consistent performance, terminal alignment, and sealing integrity. This commitment to quality ensures every unit meets the rigorous demands of automotive and industrial applications.

Need Technical Support or Samples?

For fitment verification, datasheets, or sample requests, contact our sales team at mandy@tscn.com.cn. We provide fast, expert assistance for integrators, installers, and procurement professionals worldwide.

About TSCN – Innovation in Sealed Connectivity

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) specializes in high-reliability connectors for the automotive and industrial sectors. With over two decades of experience, we deliver engineered solutions that combine durability, precision, and compliance. As a trusted supplier of AMPSEAL-style sealed connectors, we help customers build smarter, safer, and more resilient electronic systems for the most challenging environments.