Switches (Solid State)

Solid-state magnetic switches operate based on the Hall effect or magnetoresistive effect, triggering digital signal outputs by sensing magnetic field changes. Their core advantages over traditional mechanical switches include:

Contactless Design: Eliminates mechanical wear and offers a lifespan of over one billion cycles.

Fast Response: Switching speeds in microseconds, suitable for high-frequency applications.

Environmental Adaptability: Vibration-resistant, dust-proof, and waterproof, with an operating temperature range of -40°C to 150°C.

 

1. What are the Typical Applications of Solid-State Magnetic Switches?

Industrial Automation: Motor position detection, valve status monitoring.

Consumer Electronics: Sleep/wake-up functions for flip phones and laptops.

Automotive: Seat memory, seat belt status detection.

Smart Home: Door and window opening and closing sensing, magnetic counters for smart water meters.

 

2. Key Selection Parameters of Solid-State Magnetic Switches

Trigger Magnetic Field Strength: Typically 5-50mT, which determines sensitivity.

Output Type: Push-pull or open-drain. Supply voltage: 3.3V/5V/24V and other industrial standards.

ESD Protection Level: Must comply with IEC 61000-4-2.

 

3. Industry Development Trends of Solid-State Magnetic Switches

With growing demand in the IoT and new energy sectors, this market segment will exhibit three key characteristics by 2025:

Miniaturization: The 0402 package size will account for 35% of the market.

Integration: SoC solutions integrated with MCUs will become mainstream.

Low Power Consumption: Standby current will be reduced to below 0.1μA.