Acoustic components

Acoustic components converts electric current into sound, or sound into electric current. To this category we count loudspeakers, microphones and buzzers.

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Buzzers (‏15)
Speakers (‏16)
Microphones (‏7)
Ultrasonic (‏2)

Featured products

  Speaker 8ohm ø50mm 0.25W
Miniature speaker for education and testing. * Impedance: 8ohms * Max power: 0.25W * Diameter: 50mm
1 - $1.14
10 - $0.92
25 - $0.69
100 - $0.46
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  Ultrasonic transducer reciever
Ultrasonic transmitter for alarms, remote controls and distance sensors. The sensor is combined with a transmitter to create a complete module. Water-proof and shock resistant. * Distance: 0.2 - 6m * Frequency: 40kHz * Sensitivity: -67dB min.
$4.70
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  Speaker 8ohm ø40mm 0.25W thin
Speaker for projects where space is at a premium. With its total build height of just 4mm it will fit in most places! Specifications: * Impedance: 8ohm * Power: 0.25W * Diameter: 40mm * Thickness: 4mm * Weight: 11g
1 - $1.19
10 - $1.07
25 - $0.89
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  Speaker 8ohm ø30mm 0.2W PCB
This through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don't have room for a full-blown speaker. This 30mm diameter speaker is encased in plastic and will handle about 100mW of power. Features: * Impedance: 8ohm * Power: 0.1W (0.2W max) * Diameter: 30mm * Height: 12.7mm * Pitch: 15mm
$3.49
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  Breakout Board for Electret Microphone with op-amp
This small breakout board couples an Electret microphone (100Hz10kHz) with a 60x mic preamplifier to amplify the sounds of voice, claps, door knocks or any sounds loud enough to be picked up by a microcontrollers analog-to-digital converter. Each breakout comes fully assembled and works from 2.7V up to 5.5V.The Electret Mic Breakout translates amplitude (not volume) by capturing sound waves between two conducting plates (one a vibrating diaphragm and the other fixed) in the microphone and converting them into electrical waves. These electrical signals are then amplified and picked up by your microcontrollers ADC.
$10.72
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  Piezo element ø20mm 7BB-20-6
Piezo element that can be used either to play sound or in reverse, to pick up sound / vibrations Extremly low build height. Requires external oscillator. When used to pick up sound, it's usually called a contact microphone. Resonant frequency: 6.3 kHz ± 600 Hz Impedance: 350 ohm @ 6.3 kHz Diameter: 20mm Thickness: 0.42mm
$1.29
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  Piezo element ø20mm with wires
20mm piezo element with pre-mounted load resistor and cables with pins. Ready to use as a speaker or sensor. Can be used to detect foot steps, knocks, drums and much more!
$2.41
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  Miniature speaker ø25mm 8ohm 3W
Small speaker for computers and televisions. * Max power: 3W * Impedance: 8ohm * Frequency range: 150Hz - 20kHz * SPL: 76dB * Dimensions: 28 x 10.8mm * Weight: 21g * Model: 28KC08-1-A
$8.31
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  Speaker 4ohm 3W with enclosure and JST-connector
This 2.8" x 1.2" speaker is a great addition to any audio project where you need 4 ohm impedance and 3W or less of power. We particularly like this speaker as it is small and enclosed for good audio volume and quality. It has a handy JST 2PH input cable to add audio to your displays and other projects (this connector is part of the JST-PH series which is ~2.0mm spacing). Speaker weight: 26.4g Dimensions: 30mm x 70mm x 17mm / 1.2" x 2.8" x .7" Cable is 22.5" long 3.4mm diameter mounting holes 63mm x 24mm mounting rectangle
$7.11
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  Piezo element ø27mm 7BB-27-4
Piezo element that can be used either to play sound or in reverse, to pick up sound / vibrations Extremly low build height. Requires external oscillator. When used to pick up sound, it's usually called a contact microphone. Resonant frequency: 4.6 kHz ± 500 Hz Impedance: 200 ohm @ 4.6 kHz Diameter: 27 mm Thickness: 0.54 mm
$1.45
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  Piezo alarm passive
Module with a passive piezo summer. Can be used as a regular speaker by sending a audio signal to it. The piezo element is resonant around 2-5kHz, which means that it will sound the loudest in this frequency range. Can be connected directly to a digital output on a microcontroller or via a transistor for a louder signal.
$4.34
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  INMP411ACEZ-R7 MEMS microphone
Surface mount miniature microphone with a high signal-to-noise ratio, low power consumption and wide frequency response. Suitable for portable and battery powered devices. Built-in amplifier with an analog output. * Size: 4.72 x 3.76 x 1mm * Sensitivity: -42dBV * Signal-to-noise ratio: 62dBA * Frequency response: 100Hz - 15kHz * Runs on 1.5 - 3.3V * Power consumption
$7.11
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