A. SCOPE 
This specification applies piezo buzzer, FDK-420160F-12028W150   
 
B. SPECIFICATION

Item

Unit

Specification

Condition

1

Oscillation Frequency

KHz

2.8±0.5

2

Operating Voltage

VDC

3 ~ 24

3

VDC

12

4

Current Consumption

mA

MAX. 12

at Rated Voltage

5

Sound Pressure Level

dB

MIN. 105

at 10cm at Rated Voltage

6

Tone Nature

Constant

7

Operating Temperature

℃

-20~ +60

8

Storage Temperature

-30 ~ +70

9

Dimension

mm

Φ42 x H16

See appearance drawing

10

Weight (MAX)

gram

13.4

11

Housing Material

ABS( Black )

12

Leading Pin

 Wire type

13

Environmental  
Protection Regulation

 RoHS

 
C. APPEARANCE DRAWING  
 
Tol : ± 0.5      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. VOLTAGE / CURRENT / SOUND PRESSURE CHARACTERISTICS

F. RELIABILITY TEST

NO.

ITEM

TEST CONDITION AND REQUIREMENT

1

High Temperature
Test (Storage)

After being placed in a chamber with 702℃ for 96 hours and then being placed in normal condition for 2 hours.
Allowable variation of SPL after test: 10dB.

2

Low Temperature
Test (Storage)

After being Placed in a chamber with -302℃ for 96 hours and then being placed in normal condition for 2 hours.
Allowable variation of SPL after test: 10dB.

3

Humidity Test

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.
Allowable variation of SPL after test: 10dB.

4

Temperature Cycle
Test

The part shall be subjected to 5 cycles. One cycle shall be consist of: 
 
Allowable variation of SPL after test: 10dB.

5

Drop Test

Drop on a hard wood board of 4cm thick, any directions ,6 times, at the height of 75cm .
Allowable variation of SPL after test: 10dB.

6

Vibration Test

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 .
Allowable variation of SPL after test: 10dB.

7

Solderability
Test

Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +3005℃ for 31 seconds .
90% min. lead terminals shall be wet with solder
(Except the edge of terminals).

8

Terminal Strength
Pulling Test

The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds.
No visible damage and cutting off.

TEST CONDITION. 
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 
 

G. PACKING STANDARD