12-Way Female Metri-Pack Housings, GT 150 Series, Sealed Automotive Connector 15326849 – TS30381-12P-21 Reliable Female Housing for Engine, Audio & Control Systems

When precision and durability matter in automotive Electrical Systems, the TS30381-12P-21 stands out as a trusted solution. This 12-way female Metri-Pack housing from the GT 150 Series is engineered to deliver secure, long-lasting connections in demanding environments. Designed for applications requiring the 15326849 specification, it serves as a critical component in audio systems, engine control units, and sensor networks across a wide range of vehicles—including cars, yachts, UTVs, and off-road machinery. Paired with its male counterpart, the TS30381-12P-11, this sealed connector ensures stable signal transmission and resistance to vibration, moisture, and thermal stress—making it ideal for both OEM integration and aftermarket repair or upgrade projects.

Designed for High-Reliability Automotive Signal Transmission

The TS30381-12P-21 is built to ensure dependable connectivity in automotive systems where failure is not an option. As a female housing in the GT 150 Metri-Pack series, it plays a vital role in transmitting signals between control modules, sensors, and power units. Its 12-way configuration supports a wide range of wiring needs, from audio and infotainment systems to engine management and safety controls. With its sealed design and robust retention system, this connector maintains stable performance even in the presence of continuous vibration, temperature extremes, and exposure to oil, water, and dust.

Two-Piece Housing with Secondary Lock for Maximum Security

Unlike single-piece connectors that rely only on terminal latches, the TS30381-12P-21 features a two-part design with a secondary locking wedge. After Terminals are inserted into the housing, the wedge is slid into place, applying uniform pressure to secure all contacts. This dual retention system significantly reduces the risk of terminal backout due to engine vibration or mechanical shock—common causes of intermittent faults in vehicle electronics. The result is a connection that stays secure for the life of the system.

Integrated Mat Seals for Superior Environmental Protection

Each terminal cavity is equipped with a molded-in mat seal featuring a protective diaphragm. When a terminal is inserted, the diaphragm is pierced, forming a tight seal around the wire insulation to block moisture, dirt, and corrosive elements. This prevents short circuits, signal degradation, and terminal corrosion—critical for long-term reliability in under-hood, marine, and off-road applications. If a terminal is removed during servicing, a cavity plug should be used to maintain the housing’s environmental integrity.

Durable Construction for Harsh Operating Conditions

Made from either PBT+GF15% or PA66+GF30%, the housing offers excellent resistance to heat, impact, and chemical exposure. These glass-filled engineering plastics maintain dimensional stability and mechanical strength across a wide temperature range, making them ideal for use in engine compartments, control panels, and industrial environments. The black finish provides UV resistance and a professional appearance that matches factory-installed components.

Compatible with Standard Terminals and Wiring Practices

The TS30381-12P-21 accepts a variety of high-conductivity terminals, including copper alloy, brass, and phosphor bronze, allowing for flexibility in performance and cost. Its 4.0mm pitch and organized cavity layout support clean, error-free harness assembly. Whether used in a custom audio upgrade, a factory replacement, or a marine control system, this connector integrates seamlessly with standard crimping tools and wiring techniques.

Ideal for Automotive, Marine, and Off-Road Applications

Common applications include:

• Audio and infotainment system connectors in modern vehicles

• Engine control unit (ECU) and sensor harnesses

• Control panels in yachts and marine vessels

• Electrical systems in UTVs, ATVs, and agricultural equipment

• OEM replacements and aftermarket performance upgrades

Its modular, serviceable design makes it suitable for both small-scale repairs and large-volume production runs.

Custom OEM & ODM Manufacturing with Mold Development

We provide comprehensive customization services, including private labeling, tailored pin configurations, and dedicated mold creation. Our engineering team supports clients from concept to mass production, ensuring that every custom connector meets exact performance, aesthetic, and compliance requirements. With fast tooling development and scalable manufacturing, we help businesses deliver high-quality, branded solutions to market efficiently.

Quality Assured and Globally Certified

Every TS30381-12P-21 undergoes 100% inspection before dispatch, including continuity testing, visual checks, and verification of locking wedge engagement. Certified to IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance compliance), our products meet the highest international standards for reliability, safety, and environmental responsibility.

Fast Global Delivery and Technical Support

With a minimum order of 1,000 pieces and a delivery window of 2–15 days, we support rapid fulfillment for distributors, installers, and manufacturers worldwide. For samples, technical drawings, or customization inquiries, contact our sales team at mandy@tscn.com.cn for prompt and professional assistance.

About TSCN – Delivering Precision Connectivity for Demanding Industries

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) is a leading manufacturer of high-performance automotive and industrial connectors. With over 25 years of experience, we deliver durable, precision-engineered products that power reliable connections across global markets.

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ZHEJIANG TONGSHENG ELECTRONIC CO.,TLD are founded in 1998, we are a ISO 9001 and ISO/TS16949 certificated professional manufacturer engaged in automotive aftermarket automotive connector and wire harness, terminals and mold development for more than 20 years.

Our Automotive connectors are components of a vehicle's electrical system that allow power, electrical signals and data to be safely and reliably transmitted between respective systems. Connectors are often used to link the main power supply, wherever the engine is located, to all the other electrical systems within the vehicle. These systems can include brakes, transmission, steering and climate control. Different types of automotive connectors are used for different purposes, and the style, number and location of connectors can vary depending on the make and model of the vehicle. Automotive connectors can include connectors for devices such as headlamps, sensors, lights, power tools, and other devices that may be built in to the vehicle. They are usually designed for use in an automotive environment, and as such must be able to withstand all the extreme conditions that driving may present.

We are OEM/ODM available, we performs "excellent quality, super connector" as our honest management principles actively, and provide customers with professional solution service. Our main customer are in North America, Southeast Asia, Europe etc.

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 Excellent PA material, Reasonable price, Quickly delivery!!!