• Sealed to IP 68 (switches mounted on panel)
• Easy to clean metal surface
• Long life
• Ring or dot illumination
The PBA piezo switches are based on the functional principle of the piezoelectricity. The direct piezoelectric effect is the ability of some materials to generate an electric potential in response to an applied mechanical stress. The piezoelectric effect is also reversible: when an electric field is applied, a strain is produced. This technology is the core part of many high-end applications: laser mirror alignment, fuel
injectors, ultrasonic submarine detectors, …
On the APEM piezo switches, the action of force on the piezo disk causes an electrical pulse converted by the electronic printed circuit board. The duration depends on the actuating speed and force, as well as on the duration of actuation. The output of the switch is closed for the specified pulse duration (depending on the electrical function chosen) Advantages
The APEM piezo switches integrate a solid-state output allowing a very long life expectancy (more than 50 millions cycles), needed for applications where reliability is very important.
The flat top surface without any moving part prevents retention areas and facilitates the efficient cleaning required in the medical and food-processing industries. A high performance sealing (IP68 and IP69K) is achieved due to the one-piece construction of the switch. The screw-machined metal housing construction and APEM’s vertical integration allow the manufacturing of any shape required.