Mini Tactile Switch For Home Appliance

A compact, reliable momentary switch designed for home appliance control panels and smart interfaces. Delivers crisp tactile feedback, stable electrical performance, and long service life in high-use environments. Available in low-profile SMD and through-hole versions with multiple actuation forces and heights to match your UI feel.

Key highlights

• Clean, consistent tactile click with short, precise travel
• Compact, low-profile body for dense PCBs
• Multiple actuation forces (e.g., 160/240/320 gf)
• Long mechanical life for frequent operation
• Options for dust-resistant, washable, and sealed versions
• SMD and through-hole footprints; tape-and-reel available
• Lead-free; RoHS and REACH compliant

Typical applications

• Coffee makers, air fryers, rice cookers, microwave/oven panels
• Air purifiers, fans, humidifiers, dehumidifiers
• Washing machines, dryers, dishwashers control interfaces
• Water heaters, thermostats, smart home controllers
• Timers, mode selection, power/reset keys

Electrical specifications

• Circuit: SPST, normally open (momentary)
• Rating: up to 12 VDC, 50 mA (resistive load)
• Contact resistance: ≤100 mΩ (initial)
• Insulation resistance: ≥100 MΩ at 100 VDC
• Dielectric strength: 250 VAC for 1 minute
• Bounce time: ≤5 ms
• Contact plating: silver or gold over nickel (options)

Mechanical specifications

• Actuation force options: 160/240/320 gf (±20%)
• Travel: 0.25 ± 0.1 mm
• Tactile feel: sharp, audible click
• Actuation type: top-actuated (side-actuated available on request)

Materials

• Housing/cover: heat-resistant, UL94 V-0 rated thermoplastic (options available)
• Contacts: copper alloy with Ag or Au plating over Ni
• Terminals: copper alloy, tin-plated
• Optional silicone dust boot or internal seal for washable types

Environmental

• Operating temperature: -20 to +85 °C (extended -40 to +85 °C available)
• Storage temperature: -40 to +85 °C (unpowered)
• Humidity: up to 95% RH (non-condensing)
• Thermal shock, dry heat, cold, and damp heat endurance tested (per internal QA)
• Optional “washable” sealed type for post-solder cleaning

Mechanical Outline

• Body size: approx. 4.5 × 4.5 mm
• Heights (from PCB): low-profile 2.0 mm, standard 3.5 mm, tall 4.3 mm (options)
• Actuator diameter/area: approx. 2.0–2.5 mm (varies by model)
• Terminal style: SMD gull-wing; through-hole pins available in family
• Recommended land pattern and 3D CAD available on request

Mounting and Soldering

• SMD reflow soldering (lead-free): peak 255–260 °C, ≤10 s above 250 °C; preheat 150–200 °C for 60–120 s
• Through-hole wave soldering: 260 °C max, ≤5 s; avoid multiple passes where possible
• Hand soldering: 350 °C tip max, ≤3 s per pad; avoid mechanical stress during/after soldering
• Cleaning: use washable-sealed version for aqueous cleaning; avoid solvent ingress on non-washable models

Quality and Compliance

• RoHS (2011/65/EU and (EU) 2015/863) compliant
• REACH SVHC compliant
• Halogen-free versions available
• Manufactured under ISO 9001 quality system (supplier-dependent)

Packaging

• SMD: tape-and-reel for automated pick-and-place (typ. 2,000–4,000 pcs/reel depending on height)
• Through-hole: tube or bulk packaging
• Lot traceability and labeling included

Ordering Options

• Actuation force: 160 gf, 240 gf, 320 gf
• Mounting: SMD top-actuated; THT top-actuated; side-actuated (on request)
• Height/cap: low, standard, tall; optional colored caps for UI matching
• Plating: Ag (standard) or Au (for low-level/oxidation-critical environments)
• Sealing level: standard; dust-resistant; washable
• Example part code (illustrative): MTS-45T-240G-35-SMD
  • 45T = 4.5 mm top-actuated body
  • 240G = 240 gf with gold plating
  • 35 = 3.5 mm height
  • SMD = surface-mount terminals

Design Guidelines and Cautions

• Do not use to switch mains voltages; intended for low-voltage logic only
• Ensure actuator is pressed vertically; avoid lateral loads and over-travel
• Provide a mechanical stop in the keycap design to prevent damage
• Keep flux and contaminants away from the actuator; choose washable type if cleaning is required
• Store in original moisture-barrier packaging; recommended storage 5–30 °C, ≤60% RH
• Use within the supplier’s recommended shelf life for best solderability

Why it’s ideal for Home Appliances

• Durable click mechanism maintains feel over high cycle counts
• Heat- and humidity-resistant materials suited for kitchen and laundry environments
• Optional sealing to prevent dust/steam ingress and allow board washing
• Flexible force/height options to fine-tune user experience and panel design

Notes

• Specifications are typical values and may vary by specific model and options.
• Detailed datasheets, drawing files, and samples are available on request. Please share your target force, height, mounting type, and environmental needs for a tailored recommendation.