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PT Series - Piezoelectric Switches

Built to last. Built for any environment.

No moving parts. Fully sealed. Rated at 50 million activations. The PT Series covers every mounting format from 16mm to 30mm, in flat, bevel, recessed, illuminated and tactile configurations. Available as a standard switch or with onboard MCU intelligence via PT Plus.

IP69K 50M activations IK10 Washdown 100 bar 316L stainless or aluminium
RNC PT-22 Piezo Switch
50M
Actuations, rated
IP69K
Fully sealed, washdown rated
IK10
Maximum impact resistance
100 bar
Pressure washdown rated
Product range

Six surface formats.

Available from 16mm to 30mm mounting diameter. All formats in PT Series standard or PT Plus intelligent (22mm and above).

PTF-22 flat piezo switch, angled viewPTF-22 flat piezo switch, front view
PTF
Flat
Flush flat surface. Clean, easy to clean, no edges to collect dirt. Most common format for general OEM applications.
PTF-16 flat piezo switch 16mm, angled viewPTF-16 flat piezo switch 16mm, front view
PTF-16
Flat 16mm
Compact 16mm flat-head switch with a lower-profile body than the PTF-22. For rugged and anti-vandal installations where panel depth is limited or a smaller footprint is required.
PTB bevel piezo switch, angled viewPTB bevel piezo switch, front view
PTB
Bevel
Chamfered edge guides the finger to the activation area. Preferred for glove use and high-traffic installations.
PTR recessed piezo switch, angled viewPTR recessed piezo switch, front view
PTR
Recessed
Activation area sits below the panel face. Prevents accidental actuation. Ideal for outdoor, emergency and high-abuse environments.
PTL illuminated piezo switch, angled viewPTL illuminated piezo switch, front view
PTL
Illuminated
Ring LED for status indication, backlit marking or premium aesthetics. Single colour, bi-colour or RGB. 3.3V to 24V.
New
PTC tactile piezo switch
PTC
Tactile
Mechanical click feel with piezo reliability. Still works even if the mechanical element freezes or jams. Available with ring illumination.
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Free samples for qualified projects
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Standard or custom configuration
Download datasheets
Full specs and wiring diagrams
PT Plus
Need adjustable sensitivity, programmable logic, or digital communication? PT Plus adds an onboard MCU to any switch from 22mm.
Explore PT Plus →
What is inside matters

Not all piezo switches are built the same.

A piezo switch looks identical on the outside whether it is built well or built cheaply. The difference is inside: how the disc is coupled, how the connections are made, how the sealing holds up after years in the field. These are the things that determine whether your product works reliably at year ten or starts failing at month eighteen.

RNC builds every switch in-house. We control the construction, the materials, and the testing. Every single unit is tested at every stage of production. Not sampling. Every one.

See how we build differently →
Disc coupling
Mechanical pressure, not adhesive.
The sensing bond does not depend on glue holding up over time. Consistent sensitivity for the life of the switch.
Connections
Direct mechanical contact, no solder on disc.
Eliminates the brittle solder joints that crack under thermal cycling and vibration.
Sealing
Multi-level, not single O-ring.
Multiple independent sealing levels protect against moisture even after years of thermal cycling.
Testing
100% tested. Every unit, every stage.
Not statistical sampling. Every switch passes activation, electrical, and seal testing before it ships.
Customization

Every switch is configurable.

Diameter
16 / 18 / 19 / 22 / 25 / 28 / 30 mm
Custom diameters available
Material
Aluminium 6061
Stainless 303 / 304 / 316L
Finish
Natural / Red / Black / Blue / Green
Custom colours on request
Illumination
None / Ring LED
Single / Bi-colour / RGB
3.3V to 24V
Marking
Plain / Laser engraved
Anodized print / Braille
Output
N.O. momentary / N.C.
Latching / Timed / Prolonged
Termination
Wire leads / Pin connectors / Terminal blocks / Custom
Red flat switch
Green illuminated switch
Blue bevel switch
Red recessed switch
Green anodized switch
Deep red recessed switch
Technical specifications
PT Series
Electrical Data
Switch FunctionN.O. Momentary (other functions optional)
Switch Voltage0–24 V AC/DC
Switch Current0.2 A standard (up to 1 A optional)
Electrical Rating1 Watt
Operating Cycles> 50,000,000
Switch Resistance OFF> 20 MΩ
Switch Resistance ON< 5 Ω
N.O. Impulse Duration125 ms (depending on force, time and speed)
Switch Capacitance10 pF
Contact ConfigurationFree Polarity
Mechanical Data
Housing MaterialsAluminium 6061 T651 or Stainless Steel (303 / 304 / 316)
Actuating Force< 3 Newton
Connection22 AWG standard (pin or terminal blocks optional)
Shock ProtectionIK10
Mounting Screw Torque2.5 Nm
Environmental Data
Operating Temperature−20 °C to +75 °C
Storage Temperature−40 °C to +125 °C
IP ProtectionIP69K
Want to understand what is inside a PT Series switch and why it matters?
Learn about our build quality →
Datasheets
Download product data
Full electrical specifications, mechanical drawings and wiring diagrams for each PT Series variant.
Ready to specify?
Tell us about your application.

Standard switch, custom configuration, or PT Plus intelligence. Describe what you need and we respond within one business day with a real engineering assessment.