Name: No Lever Pin Plunger Micro Switch G303
Brand: Guangzhou Unionwell Sensing & Control Technology Co., Ltd.

The Unionwell G303-130P00C50J-T370U Micro Switch features a unique no lever pin plunger design, delivering precision actuation without traditional lever mechanisms—perfect for applications where space is limited or lever-based operation is unnecessary. With an SPST-NO (Single Pole Single Throw, Normally Open) circuit and a maximum operating force of 130gf, this switch offers reliable, direct contact for the simplest yet most demanding electronic systems.

Space-Saving Direct Actuation

Designed for seamless integration into compact assemblies, the G303 eliminates lever components, reducing size and complexity while maintaining high performance. Its straight PCB terminals (0.6mm width) enable easy soldering and secure mounting on printed circuit boards, making it an excellent choice for space-constrained applications. The IP67 rating ensures protection against dust and water, enhancing durability in challenging environments.

Performance & Reliability

Built to international safety standards, this micro switch excels in diverse electrical and mechanical conditions:

Electrical Ratings: Supports 0.1A at 125/250VAC, 3A at 12VDC, 0.1A at 48VDC, and μ1E5 for versatile voltage/current requirements.
Longevity: Engineered for 500,000 mechanical cycles and 100,000 electrical cycles (dependent on part number), ensuring minimal downtime and replacement costs.
Environmental Resilience: Operates reliably from -40°C to +85°C and withstands up to 85% relative humidity, making it suitable for extreme industrial, automotive, and consumer applications.

Ideal Applications

Perfect for:

Automotive Systems: Seat position sensors, door latch mechanisms, and compact safety switches.
Household Appliances: Small kitchen devices, power tools, and smart home gadgets requiring simple, space-efficient switching.
Industrial Controls: Robotics, machinery limit switches, and equipment with direct-actuation requirements.

Parameters

Rating		0.1A, 125/250VAC; 3A/12VDC; 0.1A/48VDC;μ 1E5
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.
Vbretion Durabllty		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.)
	Mechanica	Min. 500,000 cycles

Why Unionwell?

Unionwell combines innovative design with engineering excellence, providing micro switches that solve real-world challenges. The G303’s no lever pin plunger design and SPST-NO configuration make it a top choice for engineers prioritizing simplicity, space efficiency, and reliability. Trusted by global industries, our components meet strict safety standards and deliver consistent performance—even in the most demanding environments.

Ready to streamline your design with a lever-free, high-precision micro switch? Contact us today to discuss how the G303-130P00C50J-T370U can elevate your application's efficiency and durability.

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