High-Performance Switch For Air Purifier Controls

The HP‑AP Series is a premium, sealed tactile switch engineered for front-panel control interfaces in air purifiers. It delivers a quiet, consistent click feel, long electrical life, and robust dust and moisture protection—ideal for Power, Fan Speed, Mode, Timer, and Child Lock functions. Materials and sealing are optimized for high particulate environments and frequent cleaning, while optional backlighting and custom caps enable refined user experiences and brand consistency.

Key Features

• Ultra-quiet, smooth tactile actuation with consistent force curve
• Long life up to 1,000,000 cycles under typical UI loads
• Sealed against dust and moisture; IP67 option for harsh environments
• Gold-plated contacts for low resistance and high reliability at signal levels
• Low contact bounce for precise microcontroller detection
• Optional LED backlighting and light-pipe compatibility
• Multiple operating force options (soft/standard/firm) to match UX needs
• High-temperature, flame-retardant housing (UL94 V‑0)
• RoHS, REACH, and halogen-free compliant; low VOC/outgassing materials
• ESD robustness to ±15 kV air and ±8 kV contact
• SMT or THT mounting options; washable variants for post-solder cleaning

Typical Applications

• Air purifier front panels and UI PCBs
• Smart air purifiers with capacitive or hybrid control interfaces
• Dehumidifiers, air cleaners, and small HVAC control modules
• Control boards exposed to high dust loads and regular disinfection

Technical Specifications

• Contact rating: 12 VDC, 50 mA (signal level); optional 24 VDC, 100 mA
• Contact arrangement: SPST-NO, momentary
• Contact resistance: ≤100 mΩ (initial), ≤200 mΩ (after life test)
• Insulation resistance: ≥100 MΩ at 100 VDC
• Dielectric strength: 250 VAC for 1 minute
• Contact bounce: ≤10 ms typical (≤5 ms with firmware debounce)
• ESD immunity: IEC 61000‑4‑2 ±15 kV air, ±8 kV contact
• EMC: minimal emissions; suitable for dense UI boards

Mechanical

• Body sizes: 6.2 × 6.2 mm and 7.0 × 7.0 mm low-profile variants
• Actuation force options: 1.0 N (soft), 1.6 N (standard), 2.6 N (firm)
• Total travel: 0.25–0.35 mm; pre-travel tuned for quiet actuation
• Mechanical life: up to 1,000,000 cycles (standard force at 0.5 Hz, room temp)
• Mounting: SMT gullwing terminals or THT 2.54 mm pitch pins
• Actuator/cap: POM/PC stem with silicone overmold; antimicrobial cap optional
• Backlight: integrated SMD LED (0603) or light pipe; white/blue/green options

Materials

• Contacts: Au over Ni on Cu alloy for superior corrosion resistance
• Terminals: matte tin (Sn) over Cu, lead-free
• Housing: high-temp LCP or PA66, UL94 V‑0 flame rating
• Seals: silicone rubber perimeter and plunger seal

Environmental

• Operating temperature: −40 to +85 °C
• Storage temperature: −55 to +85 °C
• IP rating: IP67 (sealed versions); splash-resistant standard versions
• Humidity: 0–95% RH, non-condensing
• Salt spray: 48 h, no functional degradation
• Chemical resistance: compatible with isopropyl alcohol and common disinfectants
• Ozone and particulate resilience: materials selected for ozone exposure and high dust load

Compliance and Quality

• RoHS, REACH, and halogen-free
• UL94 V‑0 housing; conforms to IEC 60529 (IP) and IEC 61000‑4‑2 (ESD)
• ISO 9001 manufacturing; PPAP and reliability reports available on request
• Lot traceability; 100% visual inspection; functional AQL sampling

Soldering and Cleaning

• Reflow (SMT): peak 245–255 °C, ≤30 s above 220 °C; two reflow cycles supported
• Wave (THT): 260 °C, ≤10 s; preheat per board stack-up
• Hand solder: 350 °C tip, ≤3 s per pin
• Cleaning: sealed “washable” variants support aqueous/IPA cleaning; avoid ultrasonic cleaning on non-sealed versions

User Experience and Design Notes

• Quiet actuation reduces perceived noise in low‑noise appliances
• Low bounce simplifies firmware debounce and improves responsiveness
• Optional backlit caps align with night mode and status indication
• Tactile force tuning available to differentiate modes (e.g., Power vs. Speed)

Installation and Safety

• Designed for signal-level switching; do not use to switch mains power directly
• Observe ESD handling procedures during assembly
• Keep mechanical clearances for cap travel; avoid adhesives interfering with plunger
• For IP67 variants, ensure gasket compression is uniform; do not pierce seals

Customization Options

• Custom cap shapes, textures, and icons (laser etching or pad printing)
• RGB LED and custom light-pipe solutions
• Force and travel tuning, silent-dome variants
• Pre-assembled harness or submodule with connector
• Antimicrobial materials and color-matching to brand Pantones
• Conformal-coating compatible versions for harsh environments

Accessories

• Light pipes, bezels, and panel gaskets
• Dust shields and decorative trim caps

Ordering Information

• Samples available within 3–5 business days; standard lead time 4–6 weeks
• MOQ: 1,000 pcs for customized configurations; lower MOQs for standard parts
• Provide desired force/travel, mounting type (SMT/THT), LED color, cap style/color, and IP rating requirements when ordering