Description
The TK-033 Tact Switch (KFC-320) is a precision-engineered 4-pin surface-mount (SMD) switch designed for high-performance user input. Built on reliable dome technology, this “key switch” operates through the deformation of internal metal shrapnel, ensuring a crisp, tactile response when pressed and an immediate disconnection when pressure is released. Its micro-miniature form factor makes it an essential component for space-constrained electronics where consistent, reliable operation is critical.
Constructed from a durable base, cover plate, and precision metal shrapnel, the TK-033 is built for longevity, boasting a lifespan of up to 100,000 cycles. The snap-in design allows for direct mounting onto printed circuit boards (PCBs), providing excellent stability and resilience against electrostatic discharge. Whether you are designing consumer gadgets, industrial controllers, or communication devices, the TK-033 offers the perfect balance of tactile feedback and compact integration.
Note: Product images are for reference only. The actual product may vary slightly in appearance or manufacturer markings depending on stock availability.
Key Features
- Excellent Tactile Feel: Utilizes high-reliability dome technology to provide a satisfying, crisp click with every press.
- Micro-Miniature Design: Ultra-compact profile, perfect for modern high-density PCB designs.
- Direct PCB Mounting: Snap-in SMD/SMT configuration allows for easy, automated installation.
- Electrostatic Resilience: Designed to offer protection against static discharge during handling and operation.
- Long Operational Lifespan: Engineered for durability with a service life of 100,000 cycles.
- Design Flexibility: Supports a wide variety of button shapes, heights, and cap colors to match your aesthetic requirements.
- Robust Electrical Specs: Rated for 12V DC at 0.5A, providing stable power handling for low-voltage signal circuits.
Benefits
- Improved User Interface: The responsive tactile feedback significantly enhances the perceived quality of your product’s control interface.
- Space Optimization: The miniature design saves valuable board real estate, allowing for more compact end-device dimensions.
- Streamlined Manufacturing: SMD compatibility enables efficient pick-and-place assembly, reducing production time.
- High Reliability: The internal shrapnel mechanism ensures consistent performance over thousands of operations.
- Customization Options: Multiple cap and color options allow for easy branding and functional differentiation on control panels.
- Safety and Stability: Low contact resistance (≤50mΩ) and high insulation resistance (≥100MΩ) ensure safe and efficient signal transmission.
Applications
- Consumer Electronics: Ideal for function buttons on portable audio, calculators, and handheld gaming devices.
- Office Equipment: Reliable switching for printer controls, scanner interfaces, and peripheral hardware.
- Communication Apparatus: Perfect for mode selection in intercoms, mobile radios, and networking equipment.
- Smart Home Interfaces: Suitable for physical buttons on home automation wall controllers and IoT modules.
- Industrial Instrumentation: Excellent for diagnostic settings in professional test and measurement equipment.
- Custom Hardware Prototyping: A fundamental choice for engineers building custom user interfaces and robotics.
Package Includes
- 1 x Tact Switch-TK-033-KFC-320 4 pin
Specifications
| Parameter | Specification |
|---|---|
| Model | TK-033 (KFC-320) |
| Pin Count | 4 Pins |
| Voltage Rating | 12V DC |
| Current Rating | 0.5A |
| Contact Resistance | ≤ 50mΩ |
| Insulation Resistance | ≥ 100MΩ |
| Mechanical Lifespan | 100,000 Cycles |
| Mounting Style | SMD / Snap-in |
| Shipping Weight | Approx. 0.001 kg |
