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Micro-miniature circular 4-pin waterproof connector

Product Overview： Our micro-miniature circular 4-pin waterproof connector is a high-precision compact connection solution tailored for miniaturized electronic devices that require multi-channel signal and power synchronous transmission. Upgraded from 2-pin and 3-pin single-function connectors, this 4-pin circular design features four independent pin circuits, perfectly meeting the wiring demands of multi-signal feedback, multi-channel control and integrated power supply for precision equipment. Built with ultra-fine circular docking structure and industrial full sealing technology, this tiny waterproof plug delivers ultra-stable circuit transmission, excellent dustproof and waterproof capability, and superior environmental adaptability. It can operate stably for a long time in outdoor, humid, dusty, vibrating and other harsh scenarios, being the preferred mini connection accessory for smart electronics, industrial precision equipment, automotive micro-devices and wearable devices. With an ultra-small circular streamlined body and standardized 4 independent isolated channels, this 4-pin connector effectively avoids signal crosstalk, current interference and power loss. Its ultra-compact embedded structure fits the miniaturization and high integration development trend of modern equipment, greatly optimizing internal wiring layout, saving installation space and improving the overall stability and aesthetics of equipment assembly.

Application field： Smart Home Intelligent Devices，Outdoor Intelligent Monitoring Equipment，Automotive & Motorcycle Electronics，Industrial Precision Automation，Wearable & Miniature Medical Electronics

Mobile: +86 15810047588
Email: 469148808@qq.com

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Waterproof connector

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Core Features & Advantages

Micro-Miniature Circular Compact Design: Adopts optimized mini circular structural design, with ultra-small overall size that greatly reduces installation space occupation. It is perfectly suitable for narrow-space embedded installation and dense wiring scenarios that conventional connectors cannot adapt to, featuring flexible assembly and neat wiring.

4-Pin Multi-Channel Independent Transmission: Four isolated independent pin channels support simultaneous transmission of power and multi-group signals. It solves the industry pain point of insufficient pins of 2/3-pin connectors, realizing multi-channel signal control, data feedback and power integrated connection without external wiring expansion.

Professional IP67 Waterproof & Dustproof Grade: Equipped with integrated overmolding sealing process and high-elastic imported waterproof rubber ring, forming a fully enclosed waterproof and dustproof barrier. It effectively resists rain immersion, water splashing, dust accumulation, moisture and oxidation corrosion, maintaining consistent and stable electrical performance in complex harsh environments.

Industrial-Grade Durable Materials: The connector shell adopts high-strength flame-retardant anti-aging engineering plastic, which is resistant to bending, extrusion and low-temperature aging. The contact pins are made of high-purity oxygen-free copper with anti-oxidation nickel plating, featuring low resistance, high conductivity and excellent corrosion resistance.

Anti-Vibration Locking Docking Structure: Built-in precision circular threaded locking structure ensures tight and firm fitting after plugging. It effectively prevents loose connection, signal interruption and circuit failure caused by long-term vibration, shaking and pulling, ensuring continuous and safe circuit operation.

Tool-Free Installation & Wide Compatibility: Plug-and-play quick docking design requires no professional tools, greatly improving production assembly and daily maintenance efficiency. It is compatible with AWG24-AWG28 fine wires, widely applicable to various miniature low-power and multi-signal precision devices.

Product Specifications

Item	Specification
Product Type	Micro-Miniature Circular 4-Pin Waterproof Connector
Pin/Core Number	4 Pins (Independent Isolated Circuit Transmission)
Waterproof Rating	IP67 (Full Dustproof & Temporary Water Immersion Resistant)
Shell Material	Flame-Retardant & Anti-Aging High-Strength Engineering Plastic
Contact Pin Material	High-Purity Oxygen-Free Copper with Anti-Oxidation Nickel Plating
Applicable Wire Gauge	AWG24 - AWG28 Fine Wires
Working Temperature	-20℃ ~ +85℃
Plugging Life	≥1000 Times Standard Plug & Unplug Cycles
Core Performance	IP67 Waterproof, Dustproof, Anti-Vibration, Anti-Crosstalk, Low Resistance, High Stability

Application Scenarios

This micro-miniature circular 4-pin waterproof connector is specially designed for precision devices requiring multi-channel signal and power integrated transmission, widely used in high-precision electronics, intelligent control, automotive and industrial fields:

Smart Home Intelligent Devices: Multi-function smart sensors, RGB color-changing landscape lights, intelligent door and window detectors, waterproof smart control modules

Outdoor Intelligent Monitoring Equipment: Mini high-definition outdoor cameras, outdoor multi-signal sensing devices, intelligent roadside monitoring terminals, portable outdoor detection equipment

Automotive & Motorcycle Electronics: Vehicle multi-function miniature sensors, car multi-color ambient lights, motorcycle intelligent control wiring harnesses, automotive hidden precision connection modules

Industrial Precision Automation: Micro industrial detection sensors, miniature automation control modules, precision instrument multi-channel signal transmission equipment

Wearable & Miniature Medical Electronics: High-end wearable smart devices, miniature medical detection instruments, portable beauty equipment, multi-function waterproof consumer electronics

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