12 В постоянного тока 24 В Электронный пьезоэлектрический

12V 24V Active Piezoelectric Buzzer Active Piezo Electronic Alarm Buzzer

Description:

The piezoelectric buzzer is mainly composed of a multivibrator, a piezoelectric buzzer, an impedance matching device, a resonance box, an outer casing and the like. Some piezoelectric buzzer housings are also equipped with light-emitting diodes. A multivibrator is composed of a transistor or an integrated circuit.

When the power is turned on (1.5~15V DC working voltage), the multivibrator starts to oscillate and outputs an audio signal of 1.5~2.5kHZ

Piezoelectric buzzers can be divided into: passive piezoelectric buzzer (external drive series), active piezoelectric buzzer (including drive series), and self-excited piezoelectric buzzer.

The characteristics of the piezoelectric buzzer are: small size, light weight, thin thickness, low power consumption, good reliability, and low cost.

It is suitable for sounding devices on small electronic products such as electronic watches, pocket calculators, electronic doorbells and electronic toys. Electronic clocks, electrical products, burglar alarms, downhole alarms, smoke alarms and the use of electronic toys. It can also be used acoustic sensor for voice-activated toys.

Specification:

Material: plastic

Product detailed size: 29x25mm/1.14x0.98 inch

Voltage range: 6.0 ~ 28.0VDC

Current consumption (maximum): max.20mA

Output sound pressure (minimum): min.90dB

Output frequency : 2,900 ± 500 Hz

Operating temperature : -20°C to +60°C

Storage temperature : -30 ° C to +70 ° C

Test Condition : 12VDC /10cm

Package Includes:

1 Piece Active Piezoelectric Buzzer