Space-Saving Tactile Switch For Bluetooth Enabled Electronics

A compact, low-profile tactile switch engineered for modern Bluetooth-enabled devices where PCB real estate and reliable user feedback are critical. Designed for functions such as power, pairing, reset, and mode selection, this switch delivers a crisp, audible click, stable electrical performance, and long mechanical life—all in a space-saving footprint suitable for wearables, audio accessories, smart remotes, trackers, and other portable IoT products.

Key Features

• Ultra-compact footprint and low profile to maximize PCB space and support slim enclosures
• Crisp, consistent tactile feedback for confident user interaction
• Multiple actuation force options to balance ergonomics and accidental-press resistance
• Long mechanical life for high-use consumer applications
• Surface-mount design compatible with automated pick-and-place and lead-free reflow
• Low contact bounce for simplified firmware debouncing
• RoHS and REACH compliant; halogen-free materials
• Optional sealed versions for enhanced dust/moisture resistance

Typical Applications

• Bluetooth pairing and reset buttons
• Power and wake/sleep controls
• Mode selection and function triggers in wearables, earbuds/charging cases, smart remotes, BLE beacons, trackers, and portable medical/fitness devices

Technical Specifications

• Type: SMT tactile dome switch
• Footprint: 3.5 × 2.6 mm or 4.2 × 3.2 mm options
• Height: 0.8–1.8 mm (low-profile options available)
• Actuation force: 150–300 gf (multiple force codes available)
• Travel: 0.2–0.35 mm
• Mechanical life: 100,000–1,000,000 cycles (depending on force and sealing)
• Electrical rating: up to 12 VDC, 50 mA max (other ratings available)
• Contact resistance: ≤100 mΩ initial (typ.), ≤200 mΩ end-of-life
• Insulation resistance: ≥100 MΩ at 100 VDC
• Dielectric withstanding: 250 VAC for 1 minute
• Contact bounce: <5 ms typical
• Operating temperature: −40 to +85°C (up to +105°C on select variants)
• Storage temperature: −55 to +125°C

Materials and Construction

• Dome: stainless steel for durable tactile response
• Contacts: silver or gold plating options for improved corrosion resistance
• Terminals: copper alloy with matte tin plating for reliable solderability
• Actuator cap: high-temperature engineering plastic (PA/PPA)

Mounting and Packaging

• Mounting: SMT; compatible with lead-free reflow (peak up to 260°C)
• Packaging: tape-and-reel per EIA-481; typical 3,000–4,000 pcs/reel
• Recommended PCB footprint and 3D models available upon request

Compliance and Reliability

• RoHS and REACH compliant; halogen-free
• Optional IP67 sealed version for harsh environments (select models)
• Designed to support compact antenna keep-out strategies in Bluetooth designs by minimizing metal mass and intrusion near RF areas

Notes

• Specifications and options may vary by variant; finalize parameters to meet your application’s mechanical, electrical, and environmental requirements.
• Custom forces, heights, and sealing levels can be supported for volume programs.