
35mm Piezo Ceramic Elements Sound Sensor
The 35mm Piezo Ceramic Elements Sound Sensor is a large-diameter piezoelectric transducer that converts vibration, knock, and sound pressure into a small electrical signal, making it one of the most versatile passive parts for sound and shock detection builds. If you are comparing the piezo element price in Bangladesh for your next Arduino knock sensor, drum trigger, or vibration alarm, this brass-backed disc is an easy pick. Hobbyists and engineering students also buy this element in Bangladesh to drive it as a buzzer or tone generator, use it for robotics impact sensing, or build tap-activated switches and simple musical instruments. Pre-soldered leads and a wide frequency response let it connect straight to an analog input or a comparator stage with just one high-value resistor.
Key Features:
• 35mm diameter piezo ceramic disc bonded to a rigid brass backing plate
• Generates a voltage output when tapped, knocked, or hit by sound pressure
• Pre-soldered red (signal) and black (ground) lead wires for quick hookup
• Works both as a vibration and sound pickup and as a passive buzzer when driven
• No sensing power required — pairs with a 1MΩ parallel resistor on analog inputs
• Great for Arduino knock sensors, drum triggers, impact alarms, and shock logging
• Thin, lightweight, and simple to mount on enclosures, pads, or robot chassis
Not sure it will work? Test your circuit free in Tekko Sim — on your phone, in Bangla or English.
| Category | Sensors |
| Model no. | PIEZO-35MM |
| Availability | In stock |
| In stock | 10 pcs |
| Delivery | Cash on Delivery, nationwide Bangladesh |
| Element Diameter | 35mm |
| Construction | Piezoelectric ceramic disc bonded to brass plate |
| Lead Wires | 2 pre-soldered leads (red = signal, black = ground) |
| Sensing Type | Vibration, knock, tap, and sound pressure |
| Capacitance | Approximately 20nF (varies by batch) |
| Operating Principle | Piezoelectric charge generation under mechanical stress |
| Typical Interface | Analog input with 1MΩ parallel resistor, or LM393 comparator stage |
| Sensing Power Requirement | None (self-generating); drive circuit needed to use as buzzer |
| Mounting | Adhesive, clamp on brass rim, or through center hole |
| Applications | Knock sensors, drum triggers, vibration alarms, tone generators |
| Compatible With | Arduino, ESP32, ESP8266, Raspberry Pi (via ADC), robotics projects |