常州压电蜂鸣器FDK-420160F

a. scope 
this specification applies piezobuzzer, fdk-420160f-12028w150   
 
b. specification

no.

item

unit

specification

condition

1

oscillation frequency

khz

2.8±0.5

2

operating voltage

vdc

3 ~ 24

3

rated voltage

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 pressureare 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 thenbeing 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 thenbeing 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 96hours 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 beconsist 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 to55 hz band of vibration frequency to each of 3 perpendiculardirections for 2 hours .
allowable variation of spl after test: 10db.

7

solderability
test

lead terminals are immersed in rosin for 5 seconds and thenimmersed 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 axialdirection 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