Silicone Tact Switches Ip67 Waterproof Smd Vertical Smt Micro Push Button Switch

Products Specification

Cantact Resistance：≤100MΩ

Insulation Resistance：≥1000MQ

Dielectric Strength：250V DC,1min

Mechanical Life(cycles)：≥300,000

IP code：IP67 (开关内部)

Operating temperature：-40℃~+95℃

Max.Rating Current：AC/DC 42V,100mA

Size:  12 * 12mm

Operation mode:  Direct press

1.Silicone Keypad Design

Utilizes highly elastic silicone material for a soft tactile feel, rapid rebound after pressing, and resistance to wear and aging.

Customizable embossed/depressed textures or character markings on the surface to enhance operational comfort and recognition.

2.Self-Resetting Tactile Switch Structure

Built-in metal dome for automatic reset after pressing, delivering crisp tactile feedback.

Low actuation force design (customizable typical force values) to accommodate frequent operation demands.

3.SMT (Surface Mount Technology) Process

Surface-mount design compatible with automated reflow soldering, improving production efficiency and consistency.

Oxidation-resistant pad plating ensures reliable soldering performance.

4.Waterproof and Dustproof Performance

Hermetically sealed internal structure (IP67-rated) effectively prevents moisture and dust ingress, suitable for humid and dusty environments such as automotive engine compartments and outdoor equipment.

• Automotive Electronics: In-car central control panels, AC controls, light adjustment systems, steering wheel buttons.
• Industrial Equipment: Instrumentation, control panels, automated machinery buttons.
• Consumer Electronics: Smart home controllers, waterproof remotes, outdoor lighting devices.
• Medical Devices: Sterilized-environment operation interface buttons.

1. Why do tactile switches have 4 pins?

Tactile switches often have 4 pins mainly for mechanical stability and ease of PCB design, not because all four pins are electrically independent. Here's a breakdown of why:

• Electrical Redundancy:

Internally, the 4 pins are usually connected in pairs. That means pin 1 is connected to pin 2, and pin 3 is connected to pin 4.

Functionally, the switch is just a simple single-pole, single-throw (SPST) switch - it either connects the two internal sides together when pressed or keeps them open when not pressed.

Having two pins per side provides redundancy, making it easier to route PCB traces and connect the switch securely.

• Mechanical Stability:

4 pins provide better mechanical anchoring to the PCB compared to just 2 pins.

This makes the switch more resistant to physical stress (like pressing and releasing) and reduces the risk of the switch being ripped off the PCB over time.

• Ease of Assembly and Soldering:

When reflow soldering or wave soldering in manufacturing, 4 points of contact help the switch sit flat and stay properly aligned during the process.

2.Are tactile switches momentary?

Yes, tactile switches are momentary switches.

This means:

They only stay active (closed) while you are pressing them.

Once you release the pressure, the switch returns to its default (open) state automatic

3.What is the difference between push button switch and tactile switches?

If you have any other questions, please contact us,we will reply you ASAP.