Description
The TK-066S Tactile Switch is a highly responsive, micro-miniature function switch designed for reliable electronic control. Measuring 4.5 x 4.5mm, this compact switch is engineered for intuitive “momentary” operation—the circuit is activated when the button is pressed and immediately turns off upon release. This functionality is achieved through high-quality internal metal shrapnel, ensuring a precise and consistent mechanical response.
Built for the modern demands of power electronics and control circuitry, the TK-066S provides stable performance for devices that require reliable switching. Its snap-in terminal design allows for direct, secure mounting onto PCBs, providing excellent stability and built-in protection against electrostatic discharge (ESD). Whether you are designing professional control panels or compact consumer electronics, the TK-066S offers the reliability and sharp tactile feedback required for a high-quality user experience.
Note: Product images are for reference only. The actual product may vary slightly in appearance or manufacturer markings depending on stock availability.
Key Features
- Momentary Operation: Designed for “press-to-activate, release-to-deactivate” functionality, perfect for control and reset triggers.
- Compact Footprint: 4.5 x 4.5mm dimensions ideal for high-density, space-constrained circuit designs.
- High-Reliability Dome: Utilizes precision metal shrapnel to deliver a crisp, professional “click” feel.
- Robust PCB Mounting: Snap-in terminal design ensures secure installation and effective ESD mitigation.
- Design Flexibility: Compatible with a wide variety of cap shapes, heights, and color options to suit your device aesthetics.
Benefits
- Operational Reliability: Low contact resistance (≤50mΩ) and high insulation resistance (≥100MΩ) ensure clear signal integrity.
- Versatile Application: Perfect for modern power electronic systems where precise control of switching values is critical.
- Easy Installation: Simplified mounting makes this switch an excellent choice for both rapid prototyping and efficient large-scale assembly.
Applications
- Power Control Modules: Reliable interface buttons for adjusting voltage, timing, and switching values in electronic equipment.
- Consumer Electronics: High-quality input buttons for remote controls, home appliances, and portable devices.
- Industrial Controls: Responsive switching for laboratory instruments and portable diagnostic equipment.
- Custom Hardware: A reliable, standard-bearer for user-facing control panels in custom PCB builds.
Package Includes
- 1 x Tact Switch-TK-066S-4 Pin 4.5×4.5
Specifications
| Parameter | Specification |
|---|---|
| Model | TK-066S |
| Dimensions | 4.5 × 4.5 mm |
| Rated Voltage | 12V DC |
| Rated Current | 0.5A |
| Operating Force | 250 ± 40gf |
| Lifespan | 30,000 Cycles |
| Contact Resistance | ≤ 50mΩ |
| Insulation Resistance | ≥ 100MΩ |
| Shipping Weight | 0.005 kg |
| Shipping Dimensions | 5 × 4 × 1 cm |














