Patch buzzer, also known as patch buzzer, SMD buzzer. What is patch type? It means that the appearance and size of the plastic case of the buzzer is small, it is a roll type packaging, and the pins can be flat affixed to the PCB, and the patch type package is another kind of packaging form of the buzzer relative to the plug-in type.
The advantages of the chip buzzer products are: small size, light weight, clear and thorough sound quality, solid structure, stable quality, high temperature resistance (can pass the wave welding), saving manual welding labor hours; Among them, the electromagnetic patch buzzer consumption current is generally relatively large, if you want to choose the power consumption current is relatively small, you should choose the piezoelectric patch buzzer.
According to the different structure and principle, it is divided into: passive electromagnetic patch buzzer, active electromagnetic patch buzzer; Passive piezoelectric patch buzzer, active piezoelectric patch buzzer.
Chip buzzer, the application market is as follows:
1. Communication products
2. Computer products
3. Consumer electronics
产品详细规格KS-0402H-0304 (4.0 x 4.0 x H2.0) 电磁式无源贴片蜂鸣器
Item | Unit | KS-0402H-0304 |
Oscillation Frequency | Hz | 4000 |
Operating Voltage | Vo-p | 2 ~ 4 |
Rated Voltage | Vo-p | 3 |
Current Consumption | mA | MAX. 90 |
Sound Pressure Level | dB | MIN. 75 at Rated Voltage at 5cm |
Coil Resistance | Ω | 17±3 |
Dimension | mm | 4.0 x 4.0 x H2.0 |
Operating Temperature | ℃ | -20 ~ +70 |
Storage Temperature | ℃ | -30 ~ +80 |
Weight (MAX) | gram | 0.1 |
OUTLINE DRAWING：UNIT：mm |
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FREQUENCY CHARACTERISTICS |
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Foshan cosson Technology Co. Ltd is a professional R & D, production, sales of various types of electroacoustic components with their own brand (KS) self-operated import and export enterprises. Major production and marketing: buzzer | ultrasonic sensor ultrasonic probe | atomization | sensing pills | SMD buzzer | piezoelectric buzzer | magnetic buzzer | active buzzer |passive buzzer mechanical buzzer | ultrasonic piezoelectric ceramic chip | ultrasonic atomization piece | microporous atomization piece |ultrasonic speaker | ultrasonic transducer ect electro-acoustic components .
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