Compact Tactile Switch For Bluetooth Devices

A low‑profile, compact tactile switch engineered for Bluetooth-enabled products that demand precise feel, small footprint, and long life. Optimized for portable, battery-powered designs such as TWS charging cases, Bluetooth speakers, headsets, remotes, trackers, and smart tags. Delivers a clean, crisp click with stable electrical performance under thin plastic or metal keycaps.

Key features:

• Ultra-compact footprint with low profile for slim enclosures
• Clean, strong tactile feedback with short travel for quick actuation
• Surface-mount (SMD) terminals; tape-and-reel for automated assembly
• Multiple actuation force options to match cover thickness and user feel
• High life rating and low contact bounce for reliable firmware detection
• Optional side-actuated and splash-resistant sealed versions
• RoHS/REACH compliant; halogen-free materials

Typical specifications:

• Size/height: 3.5 × 2.6 mm footprint; 1.5–2.0 mm height (series dependent)
• Actuation force: 160 gf, 240 gf, 320 gf (other options available)
• Travel: 0.2–0.35 mm; tactile dome for crisp response
• Electrical rating: 12 VDC max, 50 mA; recommended low-voltage logic use
• Contact resistance (initial): ≤100 mΩ; bounce ≤5 ms
• Insulation resistance: ≥100 MΩ at 100 VDC
• Dielectric strength: 250 VAC, 1 minute
• Mechanical life: 100k–500k cycles; high‑durability versions up to 1M cycles
• Operating temperature: −20 to +70 °C; extended −40 to +85 °C variants
• Materials: stainless-steel dome; Ag or Au over Ni contacts; LCP housing; Sn or Au-plated terminals
• Packaging: tape-and-reel (8–12 mm carrier, orientation marked)

Applications:

• TWS earbud charging case open/close detect, reset, pairing
• Bluetooth speakers: power, mode, pairing, factory reset
• Headsets/earphones: volume, multifunction key under thin overmold
• BLE beacons, trackers, smart tags: wake and pairing buttons
• Remote shutters, gamepads, styluses, mice: compact user inputs

Dimensions and layout:

• Top-actuated and side-actuated styles available
• Recommended SMT pad layout provided in datasheet; maintain solder mask clearance and keep-out under actuator
• Low-profile actuator options for minimal cap stack height

Mounting and soldering:

• Reflow soldering recommended; peak 245 °C max; ≤2 reflow cycles
• Preheat per standard profiles; avoid excessive mechanical load during reflow
• Not intended for ultrasonic cleaning; if washing, use sealed variants
• Use appropriate pick-and-place nozzle; avoid side force on actuator

Design integration tips:

• Select higher force (240–320 gf) for thicker covers or where accidental presses must be avoided; choose 160 gf for light-touch remotes
• Ensure cap alignment to minimize side-load; use support posts or ribs around the switch
• Debounce in firmware (e.g., 5–10 ms) and add ESD protection if the actuator is accessible externally
• For outdoor/portable speakers, consider sealed options to resist dust and splashes

Quality and compliance:

• Manufactured under ISO 9001/14001 systems
• Housing UL94 V-0 grade (series dependent)
• RoHS and REACH compliant; halogen-free

Ordering options:

• Actuation type: top or side
• Footprint/height: compact low profile variants
• Actuation force: 160/240/320 gf
• Contact plating: silver or gold for low-level signal reliability
• Sealing: standard or splash-resistant center-seal
• Terminals: standard, optional ground terminal
• Packaging: tape-and-reel orientation (left/right), quantity per reel

Documentation and support:

• Datasheet with detailed dimensions, pad layout, and reflow profile
• 3D models (STEP), reliability reports, and application notes available