ISO9001 / IATF16949/ ISO14001 etc

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UnionwellReliable Automotive Door Lock Switch Manufacturer in China

As an experienced automotive switch supplier/manufacturer, Unionwell has provided stable, reliable and cost-effective automotive switch solutions for many domestic and foreign automotive brands and won a good reputation in the industry. On automotive door lock switches, we provide cooperation for a variety of models, including Chevrolet silverado, SUV, family sedans, etc.

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A video to give you a comprehensive understanding of Unionwell automotive switch factory
UNIONWELL

Automotive door lock switch specifications

Unionwell car door lock switches come in three types, including the G303 subminiature sealed switch for electric door closing, the G304 silent car door switch, the G16 automotive door lock swing switch, G1&17 Sealed Car Door Micro Switch and the automotive rocker switch. They all have an IP67 waterproof and dustproof protection level, which can effectively resist the dust and humidity encountered in cars on a daily basis.
More models and customization options are available on the Unionwell product page, please click here to view！
Clip Type Silent Sealed Micro Switch G304/6/9 Series
01

Clip Type Silent Sealed Micro Switch G304/6/9 ...
Sealed Subminiature Micro Switch With Inner Resistor G3
02

Sealed Subminiature Micro Switch With Inner Res...
Waterproof Swing Rotary Switch G16
03

Waterproof Swing Rotary Switch G16
Top IP67 Sealed Rocker Switch Manufacturer & OEM Supplier in China
04

Top IP67 Sealed Rocker Switch Manufacturer & OE...
Custom Sealed Car Door Micro Switch for Automotive Manufacturing
05

Custom Sealed Car Door Micro Switch for Automot...

G303 Subminiature Waterproof Automotive Door Switch

In door switches, the G303 ultra-small sealed micro switch is widely used in automotive door lock systems due to its excellent performance and reliability.
●A variety of voltage specifications are available, compatible with different circuit design requirements.
●Provide IP40 and IP67 grades to adapt to a variety of use environments.
●Optional PCB, welding, outlet terminals, more flexible wiring.
●Wide operating temperature range, suitable for -40°C to +85°C environment.
G303 Subminiature sealed micro switch

Parameter

Below are the specifications of G303 subminiature sealed automotive door switch.
Operating Frequency Electrical 0.1A,120 cycles/min 3A,10~30 cycles/min
Mechanical 120 cycles/min
Contact Resistance (Initiative) 100mΩ Max.(without wire type)
Insulation Resistance (at 500VDC) 100MΩ Min.
Vbration Durability 10~55Hz,move 0.75mm(p-p)
Dielectric Strength 500VAC(50~60Hz)
Operating Temperature -40℃~+85℃
Operating Humidity 85%RH Max
Service Life Electrical Min.100,000 cycles (Depend on part NO.)
Mechanical Min.500,000 cycles

Automotive Door Lock Switch

  • FD-6100 Specs.pdf

    Sealed Subminiature Micro Switch - G303 Series PDF

    Download

  • FD-6100 Specs.pdf

    Sealed Clip Type Subminiature Micro Switch - G306 Series PDF

    Download

  • FIP-2405 Specs.pdf

    Waterproof Swing Rotary Switch - G16 Series PDF

    Download

Automobile door switch application

This video will give you a comprehensive explanation of the application of Unionwell car door lock micro switch in car door locks.

The micro switch of the car door lock is usually installed inside the car door lock body or near the door lock mechanism. Its main function is to detect the opening and closing status of the car door, and synchronize with electronic systems such as central lock, alarm device, car lights, etc.

If the car door fails to close normally, the micro switch is triggered, an abnormal warning is sent to the vehicle system, and the door is not closed signal is lit in the instrument panel.

    Get A Micro Switch Samples Now

    Why Choose Our Automotive Door Lock Switches?

    Unionwell has been specializing in the research and development and production of automotive door micro switches for 20 years. As a source factory in China, we provide high-performance, reliable and affordable door lock switches that are compatible with all types of car door locks.

    • Reliable quality, low defective rate of switches
    • The switch has passed multiple rounds of testing and certification, and has obtained ISO, IATF16949, UL, cUL, ENEC and other certifications.
    • 90% of the company's switches are produced using automated equipment.
    • Affordable price and flexible delivery.
    Get the automotive door switch drawing
    Sealed Subminiature Micro Switch With Inner Resistor G303R--G303R-130E00B48-GA150-T609U (1-1)

    How to choose the right automotive door lock micro switch

    When selecting microswitches for automotive door locks, door handle mechanisms, or central locking actuators, the approach is actually quite simple: just confirm the electrical requirements, triggering method, environmental rating, and lifespan requirements in sequence to quickly identify the optimal model.
    Taking the G303 Sealed Subminiature Micro Switch as an example and referring to the selection table below, this type of sealed 12V microswitch is specifically designed for the humid, vibrating, and temperature-volatile environments inside car doors. Therefore, you can directly determine its suitability by considering the following key points when selecting a model:

    1. Electrical Parameter Confirmation
    First, verify that the system's operating voltage and current fall within the allowable range of the G303 sealed microswitch to ensure that overload will not affect its lifespan.
    2. Selecting the Appropriate Actuator Type
    Select the structural form based on the door lock mechanism's operating method: for touch-sensitive, space-constrained mechanisms, choose a short lever or roller lever; for direct-contact mechanisms, choose a plunger type.
    3. Clarifying Contact Requirements
    If both "locked" and "unlocked" states need to be detected simultaneously, select SPDT; if only a single signal is required, select NO or NC.
    4. Considering Environmental Resistance
    The interior of car doors is subject to significant humidity, salt spray, and vibration. It is recommended to prioritize the IP67 waterproof version of the G303 to ensure long-term reliability.
    5. Installation and Wiring Harness Handling
    Ensure smooth actuator travel and allow for over-travel; ensure proper waterproof sealing of the wiring harness terminals.
    G3 micro switchG3 micro switch（1）
    The selection table above only shows a portion of the technical documents. You can click the button below to view the detailed technical documents for the G303 automotive door lock switch online. If you are unsure or do not see the parameters that meet your needs in the selection table, please click the button below to contact Unionwell, and we will assist you in selecting the appropriate model.
    Contact Unionwell

    Case

    Automotive Side Door Lock

    The Unionwell G304E series automotive door switches are widely used in automotive side door locking systems and are highly reliable door lock micro switches. They utilize a plunger-type direct-actuation mechanism and are precisely mounted at the core of the door lock mechanism. They monitor the door's open and closed status in real time and transmit signals to the body control module.

    With IP67-rated waterproof and dustproof performance, these automotive door switches maintain stable operation in harsh environments such as rain, dust, and high and low temperatures. They offer a long lifespan and high durability, effectively ensuring the safety and reliability of vehicle door lock systems.

    th-arrow1 Click to Inquire G304E Automotive Switch
    automotive slide door lock

    Case

    Automotive Door Locks

    The G303B series automotive micro switches are widely used in automotive door lock systems, suitable for detecting the opening and closing of front and rear door locks. The switch features a left-right terminal design, allowing for flexible installation and easy wiring, enabling efficient integration in confined spaces.

    The high-sensitivity triggering ensures accurate feedback on door lock status, providing a stable signal to the body control unit, thereby enhancing vehicle safety and reliability. With its excellent durability and sealing properties, the G303B series is a reliable choice for automotive door switches and a popular door lock micro switch solution.

    th-arrow1 Click to Inquire G303B IP67 Car Door Switch
    automotive door lock switch

    Door Lock Micro Switch

    The Unionwell G303 series automotive door lock microswitchis widely used in automotive side door lock systems. It is a highly reliable microswitch specifically designed for door lock control. This series of switches utilizes a lever-and-wire structure, precisely mounted at the core of the vehicle lock. It monitors the door lock status in real time and transmits the signal to the body control module.

    With IP67-rated waterproof and dustproof performance, the G303 series automotive door lock switches maintain stable operation even in harsh environments such as rain, dust, and extreme temperatures. Its high durability and long lifespan ensure the safety and reliability of the door lock system, providing solid protection for the entire vehicle.

    Automotive slide door switch case View More
    Automotive slide door switch case
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    Automotive slide door switch case

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    Customized solutions for automotive micro switches

    Unionwell provides customized solutions for automotive micro switches. We have many engineers with more than 30 years of R&D experience and many years of OEM/ODM design and production mode. We can easily solve all your project needs and produce compatible, stable and affordable automotive micro switches for your car.

    • Customizable voltage parameters
    • Customizable terminal types
    • Customizable protection level, IP40/IP67/IP68
    • Customizable lever type, straight lever/roller lever/plunger type

    If you are not sure which micro switch to buy, you can describe your needs and application scenarios, and our sales staff will provide you with the most suitable suggestions and solutions.

    Customized Car Door Switches
    Customized solutions for automotive micro switches
    Production workshop
    Let's walk into the world of Unionwell micro switches

    why choose Unionwell

    Unionwell is a sealed car door micro switch manufacturer in Huizhou, Guangdong with 30 years of manufacturing experience. It covers an area of ​​more than 65,000 square meters, has obtained CE certification from many countries around the world, has introduced advanced equipment in the industry, and has a professional R&D team!
    • 1

      Quality Certification

      We have formed a complete quality management system and have passed ISO9001, IATF16949, ISO14001 certifications, with high-quality and reliable performance!
    • 2

      Efficient Production Capacity

      Unionwell has introduced advanced automated production technology in the industry, with an annual production capacity of more than 250 million switches, including more than 4 million waterproof automotive switches.
    • 3

      Customized Service

      Unionwell has many R&D engineers with 20 years of work experience, and has many years of experience in OEM and customized micro switches, which can meet your various project needs.
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    FAQ

    How does the car door lock switch work?

    The car door lock switch senses the open and closed state of the car door through mechanical contacts. When the car door is closed, the switch is triggered and sends a "door closed" signal to the body control module (BCM), thereby enabling functions such as central locking, interior lighting, and anti-theft system. It is usually installed near the door lock mechanism or door pillar, and is accurately triggered through a compression spring structure.

    Does it comply with automotive-grade certification standards (such as ISO, IATF 16949)?

    Yes. Unionwell automotive door switches must pass ISO9001/45001, IATF16949, ENEC, UL and other testing standards, and meet the access standards of many countries around the world.

    What protection levels does it have? Can it be used in harsh environments?

    Optional protection levels range from IP40 to IP67. The IP67 model is waterproof and dustproof and can be installed in exposed or wet areas, such as door frames and door pillars, to adapt to wet and dusty environments.

    What voltage and current specifications are supported? Is it suitable for 12V or 24V platforms?

    Supports multiple specifications such as 0.1A/125VAC, 3A/12VDC, 0.1A/250VAC, etc., suitable for traditional fuel vehicles, new energy vehicles and commercial vehicle platforms, compatible with 12V and 24V systems.

    Does it support customization of terminals, structures, etc.? Is it a stable supply?

    Yes. The terminal type (such as PCB, welding, bottom outlet) and installation method can be customized according to customer requirements to meet the structural requirements of different vehicle models. It has OEM/ODM capabilities and supports large-scale stable supply.

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