Tactile Button For HMI Panel

A compact, sealed, and glove-friendly tactile pushbutton engineered for human–machine interfaces across industrial, medical, transportation, and commercial equipment. The switch delivers crisp tactile feedback, long cycle life, and optional LED illumination for clear status indication. Available in common panel sizes with multiple bezel styles, materials, and terminations to streamline panel design and assembly.

Key Features

• Crisp tactile feedback with audible click for confident actuation
• Front-panel sealing up to IP67; IK08 impact-resistant bezel options
• Glove-friendly, low-profile or raised actuator styles
• LED illumination: ring, dot, or backlit symbol; single color or RGB
• Long life: up to 5 million mechanical cycles (typical)
• Wide operating temperature for indoor/outdoor HMIs
• Multiple sizes (Ø12/16/19/22 mm) and panel thickness support
• Momentary NO as standard; latching and SPDT options on request
• Low-level signal switching with gold-plated contacts
• Quick-connect, PCB pin, screw terminal, or flying lead terminations
• RoHS and REACH compliant; UL/IEC switch standard options

Typical Applications

• Industrial HMI panels and operator consoles
• Medical devices and lab analyzers
• Building access, kiosks, vending, and ticketing
• Transportation dashboards and control panels
• Marine and outdoor equipment
• Robotics teach pendants and control boxes

Technical Specifications

• Switch function: SPST-NO momentary (standard); latching or SPDT optional
• Contact rating: up to 50–100 mA @ ≤30 VDC (signal level)
• Contact resistance: ≤100 mΩ (initial)
• Insulation resistance: ≥100 MΩ @ 500 VDC
• Dielectric strength: 1000 VAC, 1 min
• Bounce time: ≤10 ms
• LED options: 3 V, 5 V, 12 V, or 24 V input; single color (R/G/B/W/Y) or RGB

Mechanical

• Actuation force: 2.0–3.5 N (typical 2.5 N)
• Travel: 0.5 ± 0.2 mm
• Mechanical life: up to 5,000,000 cycles (application-dependent)
• Panel cutouts: Ø12 / Ø16 / Ø19 / Ø22 mm
• Panel thickness: 1–6 mm (bezel-dependent)
• Mounting: threaded bushing with nut or snap-in (select models)
• Recommended torque: 1.0–1.5 N·m

Environmental

• Ingress protection: IP65 (standard) to IP67 (front face, sealed bezel)
• Impact resistance: up to IK08 (metal bezel)
• Operating temperature: −40 to +85°C
• Storage temperature: −40 to +85°C
• Vibration: 10–500 Hz, 5 g
• Shock: 30 g, 11 ms
• UV-resistant plastics and stainless-steel bezels available for outdoor use

Materials and Finish

• Bezel/bushing: stainless steel 304/316 (brushed or polished) or anodized aluminum; nickel-plated zinc alloy optional
• Actuator cap: PC or PA12 (UV-stabilized); silicone overlay option for enhanced sealing/grip
• Seals/O-rings: silicone or NBR
• Contacts/springs: copper alloy with gold over nickel plating
• Light guide/lens: PMMA or PC
• Plastic parts flame class: UL94 V-0 (selected models)

Illumination Options

• Ring, dot, or symbol illumination; power icon or custom legends
• Single-color or RGB with separate control pins
• Uniform diffusion with low halo; adjustable intensity via series resistor or PWM
• Laser-etched legends on request

Terminations

• 2.8 mm quick-connect tabs
• PCB pins (straight or right-angle)
• Screw terminals
• Pre-wired flying leads with JST/Molex connectors

Compliance and Standards

• RoHS, REACH compliant; halogen-free options
• IP testing per IEC 60529
• Switch safety per IEC/EN 61058 (selected certifications)
• ESD immunity (front face): up to ±8 kV contact, ±15 kV air per IEC 61000-4-2

Dimensions

• 12 mm: front bezel Ø14–16 mm; behind-panel depth 18–22 mm
• 16 mm: front bezel Ø18–20 mm; behind-panel depth 20–25 mm
• 19 mm: front bezel Ø21–23 mm; behind-panel depth 22–27 mm
• 22 mm: front bezel Ø24–26 mm; behind-panel depth 24–30 mm

Cleaning and Chemical Resistance

• Compatible with 70% isopropyl alcohol, ethanol, mild detergents, and quaternary ammonium solutions
• Avoid prolonged exposure to ketones (e.g., acetone), strong solvents, or high-pressure/high-temperature wash without protective boots
• Wipe clean; do not immerse unless specified IP67 submersion variant

Installation Notes

• Ensure gasket is seated and panel surface is clean/flat for rated IP performance
• Tighten mounting nut to specified torque; avoid over-torque that may deform seals
• Use appropriate series resistor for LED based on supply voltage
• Verify clearance for wiring harness behind panel depth

Ordering Guide

• TBHMI-[Size]-[Function]-[Bezel]-[Material]-[Illum]-[Color]-[Voltage]-[IP]-[Term]
• Example: TBHMI-19-MO-FL-SS-RO-RG-12V-IP67-QC
  (19 mm, momentary NO, flat bezel, stainless steel, ring illumination, red/green, 12 V LED, IP67, quick-connect)

Customization

• Sizes: 12/16/19/22/25 mm
• Bezel: flat, raised, concave; brushed or black anodized
• Legends: standard symbols or custom icons/text
• Illumination: color mixing, intensity, and PWM-ready
• Electrical: custom actuation force, SPDT, or latching variants
• Cabling: bespoke harness length and connector types
• Compliance: region-specific certifications on request

Packaging, Lead Time, and Warranty

• Packaging: tray or individual polybag with protective caps
• MOQ: samples available; standard production MOQ varies by variant
• Lead time: samples 3–7 days; standard builds 2–4 weeks
• Warranty: 24 months against manufacturing defects under normal use

Safety Notes

• Not intended for direct mains switching; use as signal input to controller/PLC
• De-energize circuits before installation or service
• Use in accordance with applicable standards and panel design best practices