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G303-130S05A1U
Yutai
This Sealed Miniature Micro Switch with Round Handle is a high-precision, snap-action electronic control component, engineered for reliable circuit on-off control with minimal actuation force. Its integrated sealed structure and compact round handle design deliver stable performance in dust-laden, humid, and space-constrained working environments, making it a universal solution for low-power and low-voltage circuit control across multiple industries.
This product is manufactured by Yutai Electronics, with full compliance to international safety standards, and is widely adopted by global equipment manufacturers, wholesalers and OEM/ODM clients for its consistent quality and long service life.
Sealed Miniature Design
The round handle matches the fully sealed housing, protecting internal contact components from dust and moisture. Its compact miniature size fits into narrow installation spaces of small and medium-sized equipment, meeting the miniaturization design needs of modern electronic products.
Wide Temperature Adaptability
The switch operates stably in the temperature range of -40℃ to +85℃. It maintains consistent actuation force and contact performance in indoor, outdoor and vehicle-mounted scenarios, with no malfunction caused by temperature fluctuations.
Long Service Cycle
It delivers 500,000 cycles of mechanical life and 100,000 cycles of electrical life under rated working conditions. The high-precision internal structure reduces mechanical wear during repeated operations, lowering equipment failure rate and after-sales maintenance costs.
International Safety Certification
The product has obtained ENEC, CQC and UL certifications, complying with global electronic component safety standards. It meets the import and export requirements of mainstream markets in America, Europe and Southeast Asia.
Dual Circuit Compatibility
It supports both AC and DC circuit control, covering 0.1A 125/250VAC, 48VDC and 3A 12VDC rated loads. It adapts to low-power signal control and low-voltage power control circuit designs, with wide application compatibility.

This sealed miniature micro switch with round handle is applicable to the following mature scenarios, based on Yutai Electronics' verified industry solutions:
Automotive Electronics: Car door lock status detection, window regulator limit control, seat adjustment switch, shifting mechanism gear position sensing, electric sliding door position feedback, motorcycle handlebar button control.
Home Appliances: Refrigerator door open/close detection, slush machine lid closure interlock, electric faucet heating control, vacuum cleaner collision detection, floor scrubber power and mode switching.
Industrial & Commercial Equipment: EV charging gun lock status monitoring, high-pressure cleaner trigger control, electric spray gun spray start-stop, electric push rod travel limit, lawn mower safety protection.
Medical & Intelligent Equipment: Single-use surgical gun activation control, breeding equipment material level detection, agricultural machinery safety interlock, keyboard switch, smart lock position sensing.
Standard | Specification |
ENEC/CQC | 0.1A 125/250VAC 48VD |
UL | 3A 12VDC |
Operating Temperature | -40℃∽+85℃ |
Mechanical Life | 500000 cycles |
Electrical Life | 100000 cycles |
As a professional micro switch factory, we provide full customization services to match your specific application needs:
Round handle shape, length and material customization
Electrical parameter adjustment within certified ranges
Terminal type and wire lead customization
Sealing grade upgrade for harsh environments
Logo printing and packaging customization for bulk orders
Our R&D team, with 20-30 years of industry experience, provides rapid prototyping and sample testing services to shorten your product development cycle.
Full Production Chain Strength: We own a 65,000 square meter modern factory with over 500 employees, covering R&D, mold opening, production and full-process quality inspection. We ensure consistent product quality for bulk wholesale and OEM orders.
Strict Quality Control System: We have passed SGS ISO9001:2000 international quality management system certification, with CE, CB and other international safety certifications. All products undergo full inspection before delivery.
Flexible B2B Services: We support wholesale, bulk supply, OEM/ODM customization for global importers, brand owners and equipment manufacturers. We accept flexible order quantities to meet different scale business needs.
Mature Global Export Experience: Our products are exported to America, Europe, Southeast Asia and other regions, with complete export trade and logistics support. We provide professional pre-sales technical support and after-sales service.
This switch works normally in -40℃ to +85℃. Avoid long-term use in environments with strong corrosive gases, excessive dust or continuous water immersion. Keep the installation position away from direct impact and excessive vibration to maintain stable performance.
Yes. This product has UL certification and stable low-voltage DC performance, fully suitable for automotive electronic control scenarios such as car door locks, seat adjustment and window regulators. We also provide automotive-grade customization solutions.
We offer flexible MOQ for standard products to meet small batch procurement needs. For OEM/ODM customized orders, the minimum order quantity is confirmed based on your customization requirements, with a detailed quotation provided in time.
We use automated production lines and a 3-step full inspection system for each batch. All products go through electrical performance, mechanical life and sealing performance tests before delivery. We also provide complete test reports and certification documents for each batch.