Handle-Equipped or Handle-Free 3-Legged Micro Switch with Roller

The HK-04G-L micro switch features a short lever trigger structure and a snap-action mechanism, enabling rapid circuit switching with minimal mechanical force. With its precise operating characteristics, wide environmental adaptability, and global safety certifications, the product is widely used in critical control scenarios across home appliance control, industrial automation, and electronic equipment. It serves as a core component to ensure safe operation and accurate control of devices.

The mechanical lifespan is ≥100,000 cycles, and the electrical lifespan is ≥10,000 cycles. The contacts are made of silver alloy, with an initial contact resistance of ≤50 mΩ, ensuring low loss and signal stability during long-term use. The arc erosion rate of silver-nickel alloy contacts is 40% lower than that of pure silver contacts, which can extend the service life to 1.5 times that of standard products in high-frequency operation scenarios such as washing machine door locks.

Suitable for precision electronics and medical devices. For example: 

Printer: A swing arm in the paper feed channel detects the edge of the paper. A 0.3mm pre-travel can identify thermal paper with a thickness of 50μm; 

Medical monitor: Button activation uses a short swing arm structure, with an operating force of 1.0N balancing trigger sensitivity and prevention of accidental activation; 

Smart terminal: Battery compartment cover closure detection, with an over-travel ≥0.2mm to ensure the cover is fully secured.