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2731Hz 5V SMD Buzzer

2731Hz 5V SMD Buzzer
2731Hz 5V SMD Buzzer 2731Hz 5V SMD Buzzer 2731Hz 5V SMD Buzzer

Large Image :  2731Hz 5V SMD Buzzer

Product Details:

Place of Origin: CHINA
Brand Name: ANYO
Model Number: 7525WS05

Payment & Shipping Terms:

Minimum Order Quantity: 500pcs
Price: Negotiation
Packaging Details: customized carton
Delivery Time: 8-10 work days
Payment Terms: L/C, T/T
Supply Ability: 10000pcs per day
Detailed Product Description
Other Name: SMD Magnetic Buzzer Rated Voltage: DC 5V
Operating Voltage: DC 4-6.5V Rated Current: Max.90mA
Sound Pressure Lever: Min.82dB/10cm Resonant Frequency: 2731Hz
Operating Temperature: -20℃~60℃ Coil Resistance: 31±3Ω
High Light:

magnetic door buzzer


electromagnetic buzzer

7.5*7.5*2.5mm 2731Hz passive SMD electro-magnetic buzzer 31Ω 82dB




Housing LCP plastic resin(color:Black)
Leading pin Tin plated brass
Weight(Gram) 0.6




SMD magnetic buzzer features in small volume, light weight, convenient installation,especially in low voltage but high sound.


Electromagnetic buzzers featuring high reliability consists mainly of products that support automotive applications. They are directly mountable to PCBs due to their pin terminals, and are available in small φ12 type and φ16 type designed for broadband applications.


There are two main types of buzzer: active and passive.


A passive buzzer emits a tone when a voltage is applied across it. It also requires a specific signal to generate a variety of tones. The active buzzers are a lot simpler to use, so these are covered here.

An active buzzer can be connected just like an LED, but as they are a little more robust, you won’t be needing a resistor to protect them.


Difference between piezo buzzer & magnetic buzzer:


A piezo buzzer generates sound because of the piezoelectric effect from the piezoelectric ceramic which drives the metallic diaphragm to vibrate.

A magnetic buzzer is based on the electromagnetic principle, the metal diaphragm is pulled when input the power, and spring back without power.

The piezo buzzer is driven by square waves, and the magnetic buzzer needs 1/2 square waves to drive.

We suggest inputting higher voltage for a piezo buzzer, normally over 9V to have enough SPL. On the other hand, a magnetic buzzer can be driven to generate 85 dB by only 1.5V, but the consumption of the current will be much higher than Piezo one.

To compare the two types of buzzers, the magnetic type can have lower frequency response with the same dimension.

Though being limited by the dimension, the SPL of a magnetic buzzer can only reach to 90 dB. The piezo buzzer can achieve the SPL of 120 dB in some spec., some larger size can also easily reach to 100 dB.


  Piezo buzzer Magnetic buzzer
Start method Piezoelectric effect Electro-magnetic effect
Size Big (10-50mm) Small(6-25mm)
Resonant frequency High(2-6KHz) Low(1-3KHz)
Operating voltage High(9-24V) Low(1.5-12V)
Sound level Louder(85-120dB) Lower(70-95dB)
Current consumption Low(5-20mA) High(35-60mA)




Type Unit 7525WS
Rated voltage Vp-p 3.6
Operationg voltage Vp-p 2-5
Rated current mA ≤90
Coil resistance Ω 16±3
Sound output at 10cm dB ≥82
Resonant frequency Hz 2731
Operating temperature -20~+70
Storage temperature -30~+80
Weight g 1.5




Widely used in bluetooth earphones, the anti-lost device, LED TV, remote control, camera, smart home furnishing and so on.


Dimension: (mm)

2731Hz 5V SMD Buzzer 0

Frequency response:

2731Hz 5V SMD Buzzer 1

Package method:

2731Hz 5V SMD Buzzer 2

Contact Details
Ningbo Anyo Import & Export Co., Ltd.

Contact Person: Mr. Roy Zhang

Tel: 86 574 56807757

Fax: 86-574-55844980

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