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Quadrate Warning SMD 3V Piezo Buzzer 8.5×8.5×3 MM 2670Hz Rated Frequency

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Province/State: Jiangsu
Country/Region: China
Tel: 86-519-89185720
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Quadrate Warning SMD 3V Piezo Buzzer 8.5×8.5×3 MM 2670Hz Rated Frequency

Brand Name : MANORSHI
Model Number : SM08ET03A
Certification : ISO, CE, ROHS
Place of Origin : Jiangsu China
MOQ : 1000PCS
Price : Negotiable
Payment Terms : L/C, T/T, Western Union, By Paypal
Supply Ability : 1000000PCS/MONTH
Delivery Time : 2-3 weeks
Packaging Details : Export Standard Package
Voltage : 3V 8.5 * 8.5 *3MM SMD BUZZER
SPL : 88db 8.5 * 8.5 *3MM SMD BUZZER
Housing material : LCP 8.5 * 8.5 *3MM SMD BUZZER
Rate Frequency : 2670 Hz
Weight : 0.5g
Color : Black
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Quadrate Warning SMD 3V Piezo Buzzer 8.5×8.5×3 MM 2670Hz Rated Frequency​

Quick Detail :

1. Size:8.5mm*8.5mm*3.0mm


Model NoSM08ET03A
Rated Voltage(square wave) (VDC)3
Operating Voltage (VDC)2~4
Rated Current(max) (mA)90
Min Sound Output at 1kHz/10cm (dB)88
Rated Frequency (Hz)2670
Coil Resistance(Ω)16±2.4
Operating Temperature (℃)-20~+70
Storage Temperature (℃)-30~+80
Weight (g)0.5
Case material and colorLCP/BLACK


Frequency curve

Tell you how to choose a buzzer.

Here’re many different kinds of buzzer to choose.Firstly we need to know a few parameters, such as voltage, current, drive method, dimension, mounting type, and the most important thing is how much SPL and frequency we want.

Operating voltage: Normally, the operating voltage for a magnetic buzzer is from 1.5V to 24V, for a piezo buzzer is from 3V to 220V. We suggest you at least 9V to drive a piezo buzzer.

Consumption current: According to the different voltage, the consumption current of a magnetic buzzer is from dozens to hundreds of mill amperes.Oppositely, the piezo type saves much more electricity, only needs a few mill amperes, and consumes three times current when the buzzer start to work.

Driving method: Because of the internal set drive circuit, the self-drive buzzer can emit sound as long as connecting with the direct current. Due to the different work principle, the magnetic buzzer need to be driven by 1/2 square waves, and the piezo buzzer need square waves to get better sound output.

Dimension: The dimension of the buzzer affects its SPL and the frequency, the dimension of the magnetic buzzer is from 7 mm to 25 mm; the piezo buzzer is from 12 mm to 50 mm, or even bigger.

Connecting way: Wire type, SMD type, and pin type for piezo buzzer are usually seen.

SPL: Buzzer is usually tested the SPL at the distance of 10 cm.If distance is double, the SPL will decay about 6 dB.Oppositely, the SPL will increase 6 dB when the distance is shortened by one time. The SPL of the magnetic buzzer can reach to around 85 dB/ 10 cm; the piezo buzzer can be designed to emit very loud sound.For example, the common siren, are mostly made of piezo buzzer.

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