規 格 承 認 書
PECIFICATION FOR APPROVAL
客 戶
CUSTOMER
項 目
ITEM
型 號
：
：
立创
电磁有源一½蜂鸣器（内含驱动电路）
TYPE
：
GMD12075YB-3V2700
描述
DESCRIPTION
：
φ12
x 7.5 mm 2700Hz DC3V
客戶料號
CUSTOMER NO.
：
規 格 書 號
SPECIFICATION NO.：
版 本
EDITION NO.
日 期
DATE
：
：
≥80DB
PBT
材质
P=7.6MM
V1.1
2019-12-26
客戶承認
CUSTOMER CONFIRM AND SIGN
檢查
TESTED BY
審核
CHECKED BY
承認
APPROVED BY
東莞市赢海電子有限公司
DONGUAN INGHAI ELECTRONICS CO.,LTD
½½
ISSUED BY
審查
CHECKED BY
確認
APPROVED BY
周明
李林
地址：廣東省東莞市長安鎮上沙第五工业区新春 1 路新春科技园
電話 /
TEL：0769-83060958
傳真
/ FAX： 0769-81608993
網址：HTTP://WWW.INGHAI.COM
1/4
DONGGUAN INGHAI ELECTRONICS CO.,LTD
Model NO:
GMD12075YB-3V2700
A: DIMEMSIONS：
Unit:mm
Tolerance:±0.5mm
Potting
(+)
(-)
Sound Hole
B:SPECIFICATIONS：
Model NO
Rated Voltage
Operating Voltage
Max.Rated Current
Sound Pressure level(dB/min)at 3VDC/10cm
GMD12075YB
3VDC
2.0~5.0VDC
Max.30mA
Min 80dB
2700
±
300
Hz
-20
℃~+75 ℃
-30
℃~+80℃
PBT / Black
Resonant Frequency
Operating Temperature
Storage Temperature
Case material and color
Measuring condition
Part shall be measured under a condition (Temperature: 5½ 35℃, Humidity: 45%
½
85%R.H., Atmospheric
pressure: 860
½
1060hPa) unless the standard condition (Temperature: 25±3℃, Humidity: 60±10%R.H.
Atmospheric pressure: 860
½1060hPa)
is regulated to measure.
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C: 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:
D: Typical Frequency Response Curve：
dB-V
(dB)
90
85
80
75
70
2
3
Temp 25°
at 10cm
mA-V
(mA)
30
25
20
15
10
(VDC)
2
Temp 25°
at 10cm
4
5
3
4
5 (VDC)
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E: Reliability Test
After any following tests the part shall meet specifications without any degradation in
appearance and performance except SPL. SPL shall not deviate more than -10 dB
from the initial value
1.
Ordinary Temperature Life Test
The part shall be subjected to 96 hours at 25±10℃. Input rated voltage
2.
3.
4.
Resonant frequency, 1/2 duty Square wave.
High Temperature Test
The part shall be capable of with standing a storage temperature of +80℃ for 96 hours.
Low Temperature Test
The part shall be capable of with standing a storage temperature of -30℃ for 96 hours.
Humidity Test
Temperature:+40℃±3℃
Relative Humidity:90%½95% Duration: 48 hours
and expose to room temperature for 6 hours
5. Temperature Shock Test
Temperature:75℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
6. Drop Test
Standard Packaging From 120mm(Drop on hard wood or board of 5cm thick,
three sides, six plain.)
7. Vibration Test
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
Note:
As this product is not protected from foreign material entering, please make sure that any foreign materials
(e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production
processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.
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