It is a high-performance dual-loop micro switch designed for automotive electronics and precision equipment. Utilizing a momentary double-clamp sliding structure, it achieves a synchronous switching time of less than 15ms, ensuring accurate and reliable signal switching.
The switch has micro-current ratings of 50mA 18VDC and 50μA 5VDC, making it suitable for high-sensitivity control systems. Its compact design and small size ensure stable operation in a wide temperature range of -40℃ to +85℃, and it offers up to 300,000 electrical cycles and 500,000 mechanical cycles. It supports both DIP and SMT mounting methods, providing flexible adaptation to various device designs.
The G307A offers both DIP and SMT terminal options, making it a viable alternative to similar ALPS products and an ideal solution for automotive handbrake systems.
The Feature Of Dual Loop Subminiature Micro Switch
● High-precision dual-loop switching: Dual-loop synchronization time <15ms, meeting the high requirements of automotive electronics.
● Strong micro-current control capability: Rated value 50mA 18VDC / 50μA 5VDC, suitable for low-power devices.
● Long-life structural design: Electrical life 300,000 cycles, mechanical life 500,000 cycles.
● Small size and high reliability: Compact structure, initial contact resistance ≤75mΩ, ensuring stable signal.
● Strong insulation reliability: 100MΩ min. insulation resistance, dielectric strength AC 100V.
● Wide temperature range adaptability: Operating environment -40℃～+85℃, suitable for automotive and outdoor equipment.
● Flexible installation: Supports both PCB (DIP) and SMT surface mount mounting methods.
● Import replacement: Performance comparable to and can replace ALPS dual-loop micro switches.
The Parameters Of Dual Loop Subminiature Micro Switch
| Technical Parameters | ||
|---|---|---|
| Rated Value | G307A | 50mA 18VDC
50μA 5VDC |
| Operating Frequency | Electrical | 15–20 cycles/min (1–100 mm/s) |
| Mechanical | 15–20 cycles/min | |
| Initial Contact Resistance | 75mΩ Max. | |
| Insulation Resistance | 100MΩ Min. | |
| Dielectric Strength | Terminal to Terminal: AC 100V Terminal to Case: AC 100V |
|
| Operating Temperature | -40℃ to +85℃ | |
| Life Expectancy | Electrical | 300,000 cycles |
| Mechanical | 500,000 cycles | |
Dual Loop Subminiature Micro Switch Structural Features Explanation
1. Dual-row independent switching circuit;
2. Adopts a double-clamp sliding structure for reliable contact;
3. Uses a plastic coating process to integrate the double clamps into a single structure,
achieving synchronous switching;
4. Achieves instantaneous switching mechanism by assembling the clamp assembly through a spring-supported moving plate assembly, achieving a synchronous switching time of less than 15ms;
5. The sealing ring and housing are joined using a hot-riveting process;
6. Employs the G3 switch working principle, reverse-pulling the spring to rapidly switch the moving plate assembly and achieve signal switching.
The Drawing Of Dual Loop Subminiature Micro Switch
Details View
Application Of Dual Loop Subminiature Micro Switch
Designed specifically for the automotive industry, plays a crucial safety monitoring role in automotive handbrake systems. When the driver or passenger engages or releases the handbrake, the switch’s dual-loop structure simultaneously outputs two independent status signals, providing precise input for the vehicle’s handbrake light indicator, instrument cluster, body control unit (BCM), and electronic parking brake logic.
Compared to traditional single-loop solutions, the G307A’s dual-loop design enables dual status verification, significantly improving the reliability of handbrake detection. This ensures correct handbrake feedback during vehicle start-up, parking, or hill starts, avoiding safety risks from misjudgments or delayed responses.
Furthermore, its miniaturized structure, fast 15ms synchronous response, and highly stable micro-current performance make it ideal for the confined spaces of automotive interiors and long-term, high-frequency operating environments. In addition to handbrake systems, the G307A can also be used in electronic devices and intelligent detection modules, continuously providing accurate and stable switching signals. It is a highly reliable solution widely recognized by automotive OEMs and the parts supply chain.
