福鼎SMD7525贴片式蜂鸣器用于防丢器
A. SCOPE
This specification applies magnetic buzzer, SMD-075025H-03627
B. SPECIFICATION
No. |
Item |
Unit |
Specification |
Condition |
1 |
Oscillation Frequency |
Hz |
2700 |
Vo-p=1/2duty , square w**e |
2 |
Operating Voltage |
Vo-p |
2.5~4.5 |
|
3 |
Rated Voltage |
Vo-p |
3.6 |
|
4 |
Current Consumption |
mA |
MAX. 100 |
at Rated Voltage |
5 |
Sound Pressure Level |
dB |
MIN. 80 |
at 10cm at Rated Voltage |
6 |
Coil Resistance |
Ω |
16±3 |
|
7 |
Operating Temperature |
℃ |
-30 ~ +70 |
|
8 |
Storage Temperature |
℃ |
-40 ~ +85 |
|
9 |
Dimension |
mm |
7.5 x 7.5 x H2.5 |
See appearance drawing |
10 |
Weight (MAX) |
gram |
0.8 |
|
11 |
Housing Material |
|
LCP( Black ) |
|
12 |
Leading Pin |
|
Tin Plated Brass(Sn) |
See appearance drawing |
13 |
Environmental |
|
RoHS |
|
C. APPEARANCE DRAWING
Tol : ± 0.3 Unit: mm
D.TESTING METHOD
Standard Measurement conditions
Temperature:25±2℃ Humidity:45-65%
Acoustic Characteristics:
The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below
In the measuring test, buzzer is placed as follows:
E. Typical Frequency Response Curve
F. Recommend Driving Circuit
The base current Ib should high enough so that it saturates the collector current of the transistor with the CB load.
G. PACKING STANDARD