Noise-Free Push Button Switch For Mouse

A compact, high-reliability push button switch designed for computer mice and other handheld peripherals requiring silent actuation. The noise-free mechanism delivers soft tactile feedback with minimal acoustic output, making it ideal for office, library, and shared workspaces. Optimized for low-voltage digital circuits and long service life.

Key Features

• Near-silent actuation without audible “click”
• Smooth, light tactile feedback to reduce finger fatigue
• Long mechanical life for intensive use
• Low contact resistance and fast bounce time for precise signal integrity
• Compact footprint compatible with standard mouse switch layouts
• Available in multiple actuation force options
• RoHS and REACH compliant materials

Typical Applications

• Left/Right mouse buttons
• Middle button and auxiliary mouse buttons
• Trackballs, handheld scanners, wearable input devices
• Quiet consumer electronics, office peripherals

Technical Specifications

• Circuit: SPST-NO (Normally Open)
• Rating (resistive load): up to 30 VDC, 0.1 A max; typical mouse use: 5 VDC, <10 mA
• Contact resistance: ≤100 mΩ (initial), ≤300 mΩ (after life test)
• Insulation resistance: ≥100 MΩ at 500 VDC
• Dielectric strength: 500 VAC, 1 minute
• Bounce time: ≤3 ms

Mechanical

• Actuation force options: 35 gf, 45 gf, 65 gf (±15%)
• Pre-travel: 0.15–0.30 mm
• Total travel: 0.3–0.6 mm
• Tactile feel: soft, damped feedback (noise-reduced mechanism)
• Mechanical life: up to 10–50 million cycles (variant dependent)
• Operating mode: momentary, non-latching
• Actuator: low-profile plunger, compatible with standard mouse button geometry

Environmental

• Operating temperature: −20°C to +70°C (standard); extended options on request
• Storage temperature: −30°C to +80°C
• Humidity: 5–95% RH, non-condensing
• Vibration: 10–55 Hz, 1.5 mm amplitude, no malfunction
• Shock: 100 m/s² (10 g), 6 ms, no malfunction
• ESD robustness: typical ±8 kV air, ±4 kV contact (system dependent)
• Protection: IP40 (open-frame), higher ratings available with enclosure

Materials

• Housing: PA66 or POM, flame-retardant grade
• Contacts: silver alloy or gold-plated for low-level switching
• Terminals: copper alloy, tin plating
• Internal spring/dome: stainless steel with elastomeric damper for noise reduction

Mechanical Dimensions

• Body: approx. 12.8 × 5.8 × 6.2 mm (L × W × H)
• Terminal style: through-hole, 3-pin configuration
• Pin pitch: 5.08 mm (typical)
• Mounting: PCB through-hole; SMD variant available upon request

Reliability and Testing

• Mechanical endurance tested to rated cycles under standard load and temperature
• Electrical endurance at specified voltage/current
• Contact bounce characterization for digital signal integrity
• Thermal shock and humidity exposure
• Drop and vibration tests for portable device integration

Compliance

• RoHS compliant
• REACH compliant
• Halogen-free options available

Customization Options

• Actuation force tuning (35/45/65 gf or custom)
• Contact plating (silver or gold) based on signal level
• Terminal type (THT or SMD, straight or bent leads)
• Actuator height and shape adjustments for enclosure fit
• Acoustic profile optimization for specific housing designs

Packaging and Storage

• Packaging: bulk trays or tape-and-reel (SMD variants)
• Storage: keep in original packaging, dry environment, avoid prolonged exposure to high humidity or dust
• Shelf life: 24 months sealed, standard conditions

Integration Guidelines

• Mount on rigid PCB to maintain consistent actuation geometry
• Align actuator with mouse button post; ensure no side-load
• Use debounce in firmware if required by system timing
• Avoid flux ingress; if washing is necessary, confirm washability variant