Piezo Switches

  • >> 12mm
12mm Piezo switch 12mm Piezo switch 12mm Piezo switch 12mm Piezo switch 12mm Piezo switch
12mm Piezo switch 12mm Piezo switch 12mm Piezo switch 12mm Piezo switch 12mm Piezo switch
  • >> 16mm
16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch
16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch
16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch
16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch
16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch 16mm Piezo switch
  • >> 19mm
19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch
19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch
19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch
19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch
19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch 19mm Piezo switch
  • >> 22, 25 and 30mm
22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch
22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch
22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch
22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch
22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch 22, 25 and 30mm Piezo switch
  • >> LED Color
Blue Green Red Yellow White
B G R Y W
  • >> Anodized color/ Material
Natural anodized Blue anodized Black anodized Green anodized Gold anodized Red anodized Stainless steel 316L
0 1 2 3 5 6 B

    What are Piezo Switches?

    Piezo Switches
    Piezo Switches

    LANGIR 2 wireleads piezo switch is not polarity sensitive: (+) and (-) wires can inversed without any risk.

    A piezo switch is an electrical switch based on the FET.

    The charge generated by the piezoelectric element in the switch is typically used to turn on an integrated semiconductor device such as a field effect transistor (FET), causing the switch assembly's output to be active, or "on". When the FET is on, current can flow through it as with a conventional metal contact-based switch. After the voltage pulse is dissipated in the gate resistor, the FET turns back "off", its normal high impedance state. The Piezoelectric Effect uses the fact that force applied to certain materials causes stresses that generate this electric charge. In the case of piezo switches, the force could be compressive pressure that causes the (typically disc-shaped) piezo element to bend very slightly like a drumhead.

    Thus piezo switches produce a single, brief "on" pulse. This pulse can vary with the amount of pressure which is applied, since higher pressures generate higher voltages which take longer to dissipate. A capacitor may be used to store the charge in order to lengthen the time constant of the gate circuit and therefore the width of the pulse. With additional circuitry this pulse can be extended further or used to change the state of an output from steady "Off" to steady "On" by toggling a flip-flop.

    Piezo switches have some interesting advantages over their conventional mechanical counterparts. One is that there are no moving parts necessary for them to do their job. This means the lifetime of such a switch can be ensured to be tens of millions of operations, since there is no wear involved.

    Another advantage is that they may easily be completely sealed from the environment and thus made weatherproof. They are often constructed with stainless steel housings such that they are resistant to damage by vandals or heavy use.

Technical Characteristics:

    Mechanical Specifications:
  • Water Resistance: Up through IP68
  • Connection: Wireleads PVC wires 30cm 24AWG
  • Materials: Aluminum & Stainless Steel
  • Minimum Actuation Force: 5 - 15N+ (Typical)
  • Mechanism: 100% Solid-state, No Moving Parts
  • Operational Life: +20mm cycle, -40C to 70C (Typical)
    Functional Operation Specifications:
  • Momentary / Latching
  • Normally Open / Normally Closed
  • Impact: 1kg Shock Test
  • Make / Break via Transistor
    Electrical Specifications:
  • Voltage:
    3 wireleads +5 or 10~24VDC ± 5% or per customer specifications
    2 wireleads 3~12VDC ± 5% or per customer specifications
  • LEDs Voltage: 12V DC Standard
  • Current: 100mA or per customer specifications
  • Contact Resistance: None
  • Contact Bounce: None
  • EMI/RFI: No Effect

    Wiring Schemes

    Piezo switch Wiring Schemes
    2 wire leads
    Piezo switch Wiring Schemes
    3 wire leads for latching

Applications

  • In and out of water applications
  • Medical equipment
  • Testing equipment
  • Automatic gas pumps
  • Mining equipment
  • Car wash systems
  • Control panels
  • Packaging
  • Cosmetics
  • Paints
  • Petrochemical
  • Fertilizers
  • Pharmaceutical
  • Bakeries
  • Dairies
  • Food packing
  • Food Preparation
  • Meat processing
  • Gate access
  • Process control
  • Public telephones
  • Security doors
  • Irrigation systems
  • Locomotive control panels
  • Vending machines
Disclaimer: The appearance of the products listed on this website, color, parameters are for reference only, issued a kind of LANGIR Electric Company shall prevail. LANGIR Electric Company reserves the right to modify or cancel the relevant parameters of this website does not advance notice. If in doubt, please contact customer service hotline.