Notice, 4 frequency response(square wave 3vp-p 10cm), Piezo sounder – BeStar BPT2203H07 LF User Manual
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1.4 Frequency Response(Square wave 3Vp-p 10cm)
2. Notice
2.1 The products mustn't be washed
2.2 Storage Condition
The products should be stored in the room ,where the temperature/humidity is stable.
And avoid such places where there are large temperature changes. Please store the
products at the following conditions:
Temperature: -10 to + 40 C Humidity: 15 to 85% R.H.
2.3 Expire Date on Storage
Expire date (Shelf life) of the products is six months after deliveried under the conditions of a
sealed and an unopened package. Please use the products within six months after deliveried.
If you store the products for a long time (more than six months), use carefully because the
products may be degraded in the solderability and/or rusty.Please confirm solderability and
characteristics for the products regularly.
2.4 Notice on Product Storage
(1) Please do not store the products in a chemical atmosphere (Acids, Alkali, Bases, Organic
gas, Sulfides and so on), because the characteristics may be reduced at quality, and/or be d-
egraded in the solderability due to the storage in a chemical atmosphere.
(2) Please use the products immediately after the package is opened, because the character-
istics may be reduced at quality, and/or be degraded in the solderability due to storage under
the poor condition.
(3) Please do not drop the products to avoid cracking of ceramic element.
BPT2203H07 LF
BPT2203H07 LF
李红元
邱 俊
赵 峥
DRG NO: BS/TEP01.211C
09/12/10
1K
10K
20K
Hz
40
50
60
70
80
90
SPL dB
博 士 達