28Pin Natural Male Wire Harness Connector with Terminals – Automotive Connector with TPA for Select Toyota Car Models

The TS30101-28P-11-4 is a 28-pin male automotive wiring connector engineered for reliable integration into factory audio and electronic control systems of select Toyota vehicles. Designed with an integrated Terminal Position Assurance (TPA) mechanism, this natural-colored male plug ensures terminals remain securely locked during operation, preventing dislodging caused by engine vibration, road shock, or thermal expansion. As the mating counterpart to the female housing TS30101-28P-21-4, it enables stable, plug-and-play connectivity for car stereos, navigation units, backup cameras, and auxiliary control modules in automobiles, marine yachts, UTVs, and specialty off-road vehicles.

Featuring a neutral natural (beige/off-white) finish, this connector blends seamlessly with original equipment wiring looms, making it ideal for both OEM replacements and aftermarket harness upgrades. Its precise molding and robust design support long-term durability in demanding automotive environments, ensuring consistent signal transmission for audio, data, and power lines.

Detailed Product Specifications

Understanding TPA and Non-TPA Variants

Zhejiang Tongsheng Electronic manufactures two versions of the TS30101-28P connector series: one with Terminal Position Assurance (TPA) and one without. The TS30101-28P-11-4 is designed for use with the TPA-equipped female housing (TS30101-28P-21-4), providing a secondary lock that enhances terminal retention. It's important to note that the physical design and internal locking features differ between TPA and non-TPA models—mixing components from different series may result in improper fit or compromised reliability. Always verify your harness requirements before installation.

High-Performance Materials for Automotive Durability

The connector body is precision-molded from either PBT+GF15% or PA66+GF30%, both high-strength thermoplastics known for excellent heat resistance, dimensional stability, and mechanical strength. These materials ensure the housing maintains its shape and sealing integrity across extreme temperatures (-40°C to +120°C). The internal terminals are made from copper alloy, brass, or phosphor bronze, offering high conductivity, low contact resistance, and strong resistance to oxidation—critical for maintaining clear audio signals and stable data transmission over time.

Custom Manufacturing and Branding Services

We support OEM and ODM partnerships for companies developing branded wire harness kits or requiring modified connector designs. Our services include custom mold creation, private labeling, packaging design, and technical documentation. Whether you're producing small prototype batches or large-scale production runs, we offer flexible, quality-driven solutions tailored to your project’s specifications and timeline.

Quality Assurance and Compliance

All connectors are manufactured in compliance with IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance restrictions). Each TS30101-28P-11-4 undergoes 100% inspection before dispatch, including checks for terminal alignment, housing integrity, TPA compatibility, and mating performance. This rigorous quality control process ensures every unit meets the high standards required for dependable performance in automotive electronics.

About TSCN – Trusted Automotive Connector Manufacturer

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) has been a leading supplier of automotive electrical components since 1998. With over 25 years of experience in precision molding and harness engineering, we deliver reliable, high-performance connectors trusted by installers, distributors, and OEMs worldwide. Our product range supports a wide variety of vehicle integration projects, including factory audio upgrades, marine systems, and off-road vehicle modifications.

Contact Us for Technical Support

For pinout diagrams, sample requests, compatibility verification, or bulk pricing, please contact us at mandy@tscn.com.cn. Our engineering team is ready to assist with product selection, customization options, and technical guidance for your next automotive wiring project.

Explore Our Complete Connector Line

Visit our official website to browse the full TS30101 series and other compatible automotive connectors. Find the right solution for your Toyota, Lexus, or specialty vehicle—whether you need male plugs, female housings, TPA-equipped models, or fully customized designs for unique integration needs.