Noise-Free Tact Switch For Mouse For Keyboard

A compact, near-silent tactile switch engineered for precision input on computer mice and keyboards. It delivers a smooth, low-bounce actuation with minimal acoustic output, long service life, and stable electrical performance. Available in SMT and THT variants and multiple force/travel options to fit different feel preferences and mechanical designs.

Key Features

• Near-silent actuation with damped mechanism to reduce click noise
• Crisp tactile feedback with low bounce for accurate signaling
• Long life: up to 5–10 million cycles (application-dependent)
• Multiple operating forces (e.g., 35/45/60/75 gf) and short travel options
• Compact footprints for mouse side/primary buttons and low-profile keys
• Stable contact resistance and enhanced wear resistance plating
• SMT (tape-and-reel) and through-hole mounting options
• RoHS and REACH compliant; halogen-free materials
• Optional dust cap, bracket, and LED integration

Typical Applications

• Mouse: left/right buttons, middle scroll, DPI switch, side buttons
• Keyboard: low-profile keys, media/function keys, macro keys, programmable shortcuts
• Game controllers, handhelds, embedded HMI, remote controls

Electrical Specifications

• Contact rating: 12–24 VDC, up to 50 mA (signal level; higher on request)
• Contact resistance: ≤100 mΩ (initial)
• Insulation resistance: ≥100 MΩ at 100 VDC
• Dielectric strength: 250 VAC for 1 minute
• Bounce time: ≤5–10 ms (typical)
• ESD robustness: up to ±8 kV air / ±4 kV contact (with recommended system design)

Mechanical Specifications

• Operating force options: 35 / 45 / 60 / 75 gf (±20%)
• Total travel: 0.2–0.4 mm (short-travel tactile)
• Tactile profile: pronounced yet smooth, low acoustic emission
• Actuator styles: low-profile round or rectangular; optional extended stem
• Life expectancy: 5–10 million actuations (force/travel dependent)
• Operating temperature: −20 °C to +70 °C (−40 °C option)
• Mounting: SMT (4-pad) or THT with optional support bracket
• Common sizes: compact 4–7 mm body options for dense layouts

Materials

• Contacts: silver alloy with selective gold plating for low wear and stable resistance
• Terminals: copper alloy, nickel underlayer with tin finish (SMT/THT)
• Spring: stainless steel for consistent tactile response
• Housing: high-temperature LCP/PA for reflow compatibility
• Actuator: POM/nylon; optional elastomer damping insert

Acoustic and Damping Design

• Internal geometry and elastomer interface minimize impact sound
• Reduced keycap/actuator slap via controlled overtravel and standoff
• Consistent low-noise performance across typical user force ranges

Reliability and Testing

• Mechanical endurance to rated cycles under standard load
• Vibration and shock tolerance appropriate for consumer devices
• Thermal/humidity exposure: tested for typical office/home environments
• Solderability per common SMT reflow profiles; flux ingress control features
• Optional salt-mist and dust ingress tests for specific use cases

Compliance and Safety

• RoHS and REACH compliant; halogen-free
• Conflict-free sourcing; material declarations available
• Third-party test reports available on request

Customization Options

• Operating force, travel, and tactile profile
• Footprint, terminal plating, and mounting bracket
• Actuator height, color, and dust cap
• Integrated LED or light-pipe interface
• IP protection (up to IP40–IP54 depending on design)
• Branding and specific acoustics tuning

Packaging and Storage

• SMT: tape-and-reel (e.g., 2,000–5,000 pcs/reel depending on size)
• THT: bulk or tray packaging to protect actuators
• Recommended storage: 5–30 °C, <60% RH, clean/dry environment
• Shelf life: 12 months in original packaging
• Moisture sensitivity: typically MSL 1 (confirm per variant)

Integration Guidelines

• Follow recommended PCB pad layout and solder mask clearance
• SMT reflow: peak ≤260 °C, short dwell; avoid multiple excessive reflows
• Control flux application to prevent ingress; use standoff features
• Support the switch mechanically via bracket or housing features in high-load areas
• Design keycaps to minimize impact noise; consider elastomer interfaces
• Implement system-level ESD protection and debounce filtering
• Validate feel/noise with target keycap materials and chassis

Ordering Information

• Available in multiple sizes, forces, and mounting styles
• Samples for evaluation are available; typical lead time 3–6 weeks
• Minimum order quantities vary by variant and packaging
• Provide intended application, desired force/travel, footprint, and compliance needs for the best recommendation