MODEL: ST-0503

PRODUCT: Electromagnetic Buzzer

EDITION: A/2017

THIS SPECIFICATION APPLIES TO THE ELECTROMAGNETIC BUZZER

SPECIFICATION

item

unit

specification

condition

rated voltage

Vo-p

3.0

operating volt

Vo-p

mean current

mA

110 Max

At rated voltage, 4000Hz square wave, 1/2 duty

coil resistance

Ω

12±3

sound output

dBA

80

At 10cm(A-weight free air), at rated voltage

4000Hz, square wave, 1/2duty

rated frequency

Hz

4000

operating temp

oC

storage temp

oC

dimension

mm

L5.0×W5.0×H3.0

See attached drawing

weight

gram

0.3

material

LCP(Black)

terminal

SMD type

(Plating Sn)

See attached drawing

environmental

protection regulation

RoHS

ENVIRONMENT TEST

item

test condition

evaluation standard

high temp. test

After being placed in a chamber at +80oC for

48 hours.

After the test the part will meet specifications

without any degradation in appearance and

performance except SPL, after 4 hours at +25oC.

The SPL will be in ±10dBA compared with initial

one.

low temp. test

After being placed in a chamber at -40oC for

48 hours.

thermal shock

The part will be subjected to 10 cycles.

One cycle shall consist of:

temp./humidity cycle

The part will be subjected to 10 cycles.

One cycle shall be 24 hours and consist of:

Vo-p

0V

60 min

30 min

-40oC

+80oC

30 min

a,b: 90~98%RH

c: 80~98%RH

+80oC

+25oC

3hrs

3hrs

12±0.5hrs

24 hrs

a

b

c

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