Tactile Button For Medical Equipment

A high-reliability tactile push button designed for medical and laboratory equipment. Engineered for gloved operation, disinfectant resistance, and long service life, it delivers a crisp tactile feel with optional illumination for clear status indication in clinical environments.

Key Features

• Crisp tactile feedback for positive actuation confirmation
• Optimized for gloved use; large, low-profile actuator
• Front-panel sealing up to IP65/IP67 (option) for fluid ingress protection
• Disinfectant-resistant materials (IPA, quaternary ammonium compounds, chlorine solutions)
• Optional LED backlighting (single, bi-color, RGB) for status/fault indication
• High cycle life (up to 5–10 million actuations depending on model)
• Low-force variants for reduced operator fatigue
• Gold-plated contacts for reliable low-level signal switching
• Multiple mounting sizes (12/16/19/22 mm panel cutouts)
• Custom legends, colors, and braille/raised icons for accessibility
• RoHS and REACH compliant; halogen-free options available

Typical Applications

• Patient monitors, infusion pumps, ventilators, defibrillators
• Ultrasound systems, imaging consoles, anesthesia machines
• Point-of-care diagnostics, lab analyzers, centrifuges
• Sterilizers, autoclave controllers (panel exterior), bed controls
• OEM medical control panels and handsets

Technical Specifications

• Function: Momentary, normally open (SPST); latching options available
• Contact rating (signal level): up to 24 VDC, 100 mA max (model dependent)
• Contact resistance: <50 mΩ initial
• Insulation resistance: >100 MΩ at 100 VDC
• Dielectric strength: 500 VAC, 1 minute
• ESD immunity (contact/air): ≥8 kV / ≥15 kV (per IEC 61000-4-2, model dependent)
• Illumination: 2.0–2.2 V LED (typical), 20 mA; bi-color and RGB options; requires series resistor

Mechanical

• Actuation force: 2.0–4.0 N (customizable)
• Travel: 0.3–1.0 mm (model dependent)
• Life: up to 5–10 million cycles
• Mounting: Panel mount with threaded bezel or snap-in; PCB mount versions available
• Termination: Solder lugs, PCB pins, ribbon/IDC, or quick-connect terminals
• Actuator: low-profile, domed or flat; anti-slip surface texture

Environmental

• Operating temperature: -20 °C to +70 °C (extended range options available)
• Storage temperature: -40 °C to +85 °C
• Humidity: 0–95% RH, non-condensing
• Ingress protection: up to IP65/IP67 at front face when properly mounted
• Chemical resistance: compatible with IPA (70%), quats, dilute bleach (≤0.5% NaOCl), peroxide-based wipes

Materials

• Actuator/seal: medical-grade silicone elastomer or thermoplastic elastomer (TPE)
• Body: polycarbonate or PBT; flame-retardant options (UL94 V-0)
• Hardware: stainless steel bezel/nut; gold-plated copper alloy contacts
• Optical components: clear/opaque polycarbonate light guides

Compliance and Quality

• RoHS, REACH compliant; halogen-free variants
• Designed for integration into medical electrical equipment; end-product certification to IEC 60601-1/-1-2 remains the responsibility of the OEM
• Manufactured under robust quality management systems; lot traceability available

Disinfection and Cleaning Guidance

• Compatible disinfectants: IPA 70%, quaternary ammonium wipes, dilute chlorine solutions, hydrogen peroxide wipes
• Not recommended: prolonged exposure to strong solvents (acetone, MEK) or repeated steam autoclave cycles
• Wipe only; avoid high-pressure spray directly at seal interface unless IP67 variant is selected and correctly installed

Customization Options

• Actuation force and travel tuning
• Illumination color, intensity, and patterns (steady, blink control via external driver)
• Legends: laser-etched, printed, embossed; custom icons and text
• Actuator shape and color; high-contrast and UV-stable pigments
• Accessibility: braille dot arrays or raised pictograms
• Connectors and cable assemblies; harness length and labeling
• Sealing level (IP65 vs. IP67), materials, and flammability rating

Dimensions

• Panel cutout: 12 mm, 16 mm, 19 mm, 22 mm
• Bezel diameter: 14–24 mm depending on cutout size
• Front profile height: 2.5–4.5 mm above panel
• Recommended panel thickness: 1–4 mm (threaded), 1–2.5 mm (snap-in)

Ordering Information

• Choose cutout size, sealing level, illumination, actuation force, termination
• Example part code format (customizable): TB-MED-16-IP67-RD-3N-PL
  • TB-MED: Tactile Button, Medical
  • 16: 16 mm cutout
  • IP67: front-face sealing level
  • RD: red illumination
  • 3N: 3.0 N actuation force
  • PL: PCB long-pin termination
• Lead time: typically 4–6 weeks for custom configurations
• Samples: engineering samples available upon request

Installation Notes

• Ensure gasket alignment and correct torque on bezel nut to achieve IP rating
• Use appropriate series resistor for LED illumination; observe polarity
• Route wiring to minimize ESD/EMI exposure; use shielded harnesses where required
• Verify compatibility with cleaning protocols used in your facility

Warranty and Support

• Standard warranty: 12 months against manufacturing defects
• Technical support: datasheets, 3D models, and integration guidelines available
• Lot traceability and CoC provided upon request

Safety and Regulatory Notes

• Component intended for OEM integration; not a standalone medical device
• Final equipment must be validated for electrical safety, EMC, biocompatibility (if patient-contact), and usability per applicable regulations