Product Specification
Ningbo East Electronics Limited
NO. 88 East Jinhui Road,Yinzhou Ningbo 315100,P.R.China
http://www.east-mingtao.com
Product Name:
Piezo Buzzer
Part Number:
Version:
Date:
EFM
EFM-- 210A
1.03
2020
2020-- 1 - 18
Note:
East is an ISO 9001 , IATF16949 and ISO 14001Certified Company
Revision History
Rev.
Description
Author/Date
Checked By
Approver
1.03
Add tolerance to the dimension.
俞凯
2020-1-18
汤礼东
王建成
1.02
Quality management system revised
汤礼东
2019-8-19
吕文斌
王建成
1.01
Quality Certificate Symbol revised
吕文斌
2015-1-31
汤礼东
王建成
Ningbo East Electronics Limited
1/5
1. Part Number EFM-210A
2. Dimension Drawing (Unit: mm)
3.Specification
No.
Item
Specification
3-1
Min. Sound Pressure Level
83dB/5VDC/10cm
3-2
Rate Voltage
5VDC
3-3
Operating Voltage
1~12VDC
3-4
Max. Consumption
20mA/5VDC
3-5
Oscillating Frequency
4.0± 0.5kHz
3-6
Tone Nature
Continuous
3-7
Operating Temperature
-20~+70ºC
3-8
Storage Temperature
-20~+70ºC
3-9
Case Material /Color
PC/Black
3-10
Weight
2.2g
3-11
Pin Strength
More than 10N
NOTES:
Test should be made under the conditions of room temperature (20±10℃), normal humidity (60±20%) and normal
atmospheric pressure. In this case, however, that the judgment is questionable, the test conditions are to be changed to room
temperature 20±2℃, relative humidity 60~70% and normal atmospheric pressure
Ningbo East Electronics Limited
2/5
4.Typical Frequency Response Curve
Note: Distance 10cm
5. Reliability Test
No.
Item
5-1
Operating
Temperature
-20~+70℃
5-2
Storage in high
temperature
Storage in +70℃ test box 96 hours then exposed to the room
temperature for 2 hours
5-3
Storage in low
temperature
Storage in -20℃ test box 96 hours then exposed to the room
temperature for 2 hours
5-4
Life test in the room Operate the product continuously 5 seconds on 5 seconds off
temperature
300 hours at rated voltage
5-5
Temperature /
humidity cycle test
Storage in +40℃, 93±3%RH test box 96 hours then exposed
to the room temperature for 2 hours
5-6
Temperature (high
and low) cycle test
Conduct the test for 5 cycles without applying power then
expose to the room temperature for 2 hours.(See Figure 5-6)
Vibration test
Conduct the test for the directions of X Y and Z for 0.5 hour
each (total 1.5 hours). To-and Fri sweep time(from 10 to 55Hz
and then 55 to 10) under single amplitude of 0.75mm is 3
minute, then expose to the room temperature for 2 hours
5-7
Ningbo East Electronics Limited
Method of Test
Tolerance after
Testing
Sound pressure level
initial value ±10dB
Max. consumption
value ±20%
Oscillating Frequency
±20%
3/5
5-8
Drop test
Drop a product naturally from the height of 700mm onto the
surface of 100mm thick wooden board. Two directions: upper
and side of the product are to be applied for this drop test once
respectively
5-9
Soldering heat
resistance test
Dip the connecting pins in soldering at 260±5℃ for 10±1
seconds
Test of soldering
Dip the connecting pins in soldering at 230±5℃ for 3±0.5
seconds
5-10
Solder shall be
attached around over
95% of the dipped
portion
NOTE: The pins are allowed to deform after drop test.
Figure 5-6
Ningbo East Electronics Limited
4/5
6. Electrical Testing Method
S.P.L.M Sound Pressure Level Meter
T.S
Testing Sample
F.C
Frequency Counter
P.S
Power Supply
D.V.M
DC Voltage Meter
D.A.M
DC Ampere Meter
7. Packing Information
Packing: 5000 pcs per export carton
Carton Size: 47× 30.5× 35 cm
G. Weight: 13.1 kgs N. Weight: 11.0 kgs
Ningbo East Electronics Limited
5/5
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