SMD Buzzer, buy External drive Magnetic SMD Buzzer(ROHS) on China Suppliers Mobile

Product Details

External drive type SMD magnetic Buzzer

1.Specification:

Rated Voltage:3.2V

Operating Voltage:2~5V

Fundamental Frequency:2500±200Hz

Sound Pressure level: Min.88dB

Coil Resistance:32±2 Ω

Rated Current:70mA Max

Dimension:8.5*8.5*H4.0MM

Weight :0.8g

Outer covering mateeial:LCP

Operating temp:-25°C~+70°C

Storage temp:-30°C~+80°C

2.Frequency characteristics:

3.Outline drawing:

4.Recommend Driving Circuit:

The base current Ib should high enough so that it saturates the collector current of the transistor with the CB load.

5.TESTING METHOD

.Standard Measurement conditions

Temperature:25±2°C Humidity:45-60%

.Acoustic Characteristics

The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below.

6.RELIABILITY

ITEMS	METHOD OF TEST AND MEASUREMENTS	PERFORMANCE
Coldness withstanding	After 98 hours of being exposed to -30°C environment, should be returned to normal environment for 2 hours, then re-proceed to test.	No abnormality shall exist
Hotness withstanding	After 98 hours of being exposed to +80°C environment, should be returned to normal environment for 2 hours, then re-proceed to test.	No abnormality shall exist
Humidity withstanding	After 98 hours of being exposed to 40°C 95%RH environment in actual operation, should be returned to normal environment for 2 hours, then re-proceed to test.	No abnormality shall exist
Durability	Testing after 1,000 hours actual continuous operation. (at standard measurement conditions)	No abnormality shall exist
Drop withstanding	A natural drop from 75cm high down to the ground.	No abnormality shall exist
Vibration withstanding	Vibration of 2,000 cycles per minute, 2mm amplitude, applied in X, Y and Z directions for 30 minutes each.	No abnormality shall exist