Name : FUET-4020H
Type : Electromagnetic Buzzer
Drive Mode : Passive Buzzer
Technology : Smd Buzzer
Size : 3-5mm
This specification applies magnetic buzzer, FUET-4020H
Vo-p=1/2duty , square wave
2 ~ 4
at Rated Voltage
Sound Pressure Level
at 10 cm at Rated Voltage
-20 ~ +70
-30 ~ +80
4.0 x 4.0 x H2.0
See appearance drawing
LCP( Black )
Tin Plated Brass(Sn)
See appearance drawing
C. APPEARANCE DRAWING
Tol : ± 0.3 Unit: mm
Standard Measurement conditions
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. Soldering Condition
(1)Recommendable reflow soldering condition is as follows
(Reflow soldering is twice)
Note:It is requested that reflow soldering should be executed after heat of product goes down to normal.
Heat resistant line
(Used when heat resistant reliability test is performed)
Manual soldering temperature 350 oC within 5 sec.
H. RELIABILITY TEST
TEST CONDITION AND REQUIREMENT
After being placed in a chamber with 802℃ for 96 hours and then being placed in normal condition for 2 hours.
After being Placed in a chamber with -302℃ for 96 hours and then being placed in normal condition for 2 hours.
After being Placed in a chamber with 90-95% R.H. at 402℃ for 96 hours and then being placed in normal condition for 2 hours.
The part shall be subjected to 5 cycles. One cycle shall be consist of:
Drop on a hard wood board of 4cm thick, any directions ,6 times,at the height of 75cm .
After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours .
Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +3005℃ for 31 seconds .
The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds.
Standard Test Condition : a) Temperature : +5 ~ +35℃ b) Humidity : 45-85% c) Pressure : 860-1060mbar
Judgment Test Condition : a) Temperature : +25 ± 2℃ b) Humidity : 60-70% c) Pressure : 860-1060mbar
I. PACKING STANDARD