Electromechanical

US$0.54
  • Piezoelectric ceramic buzzer sheet is formed by the coated electrode material as silver-metal ceramic sheet through polarization, which is mainly circular, square, rectangular and so on. It can be bonded together with metal materials such as iron, copper, steel and nickel alloy to form parts with high strength.Main performance indicators: resonance frequency Fr, impedance R, static electro - air C0.
  • Piezoelectric ceramic buzzer is a basic electronic sound device, which has the advantages of simple structure, stable performance and reliability.It is not only the core component of piezoelectric buzzer, ringing and alarm, but also increasingly used as impact signal sensor in various sensitive instruments.
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US$2.72
Ultrasonic Buzzer Speakers are frequently used to generate sound in digital quartz watches and other electronic devices, and are sometimes used as tweeters in less-expensive speaker systems, such as computer speakers and portable radios.
 
 
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US$0.94
This Piezoelectric element can turn any mechanical energy into electrical energy (AC). For this reason, you can use it as a knock or tap sensor. You can also implement it in any of your Arduino projects by connecting it to the analog inputs of the microcontroller (see link for more details). You can feed the sensor AC voltage as well. This (coupled with the right frequency) can turn the element into a buzzer or speaker. You won’t need to worry about soldering any leads as they come with pre-soldered red and black wires. Note that this sensor in particular has a diameter of 18mm.
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US$0.80
This Piezoelectric element can turn any mechanical energy into electrical energy (AC). For this reason, you can use it as a knock or tap sensor. You can also implement it in any of your Arduino projects by connecting it to the analog inputs of the microcontroller (see link for more details). You can feed the sensor AC voltage as well. This (coupled with the right frequency) can turn the element into a buzzer or speaker. You won’t need to worry about soldering any leads as they come with pre-soldered red and black wires. Note that this sensor in particular has a diameter of 10mm.
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US$4.50
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 12-24VDC to the LED ring to have it light up nicely, there's a built in resistor!
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US$4.50
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 12-24VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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US$4.50
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 12-24VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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US$4.50
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 12-24VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
+
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US$4.50
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 12-24VDC to the LED ring to have it light up nicely, there's a built in resistor!
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US$4.09
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 3-6VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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US$4.09
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 3-6VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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Add to wish list

US$4.09
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 3-6VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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US$4.09
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 3-6VDC to the LED ring to have it light up nicely, there's a built in resistor!
In stock
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US$4.09
These illuminated waterproof chrome-plated metal pushbuttons give a professional appearance to any project. When you press it the 'normally-open' contact shorts to the common contact and the ‘normally closed’ contact button opens. The contacts will stay in this position momentarily until the button is released. Waterproofing is provided with a rubber O-ring. On the front of the button is a flat metal actuator, surrounded by a plastic LED ring. On the back there are 3 contacts for the switch; C (common), NO (normally open) and NC (normally closed) and 2 contacts for the LED ring (+ and -). Connect 3-6VDC to the LED ring to have it light up nicely, there's a built in resistor!
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US$1.36
This is a 12mm MINI active piezo buzzers fit for computers printers, arduino, etc.,
 

 

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