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-- 260BL
1.02
2019
2019-- 8 - 19
Note:
East is an ISO 9001 , IATF16949 and ISO 14001Certified Company
Revision History
Rev.
Description
Author/Date
Checked By
Approver
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
2015-2-6
汤礼东
王建成
1.0
Released
汤礼东
2011-12-2
张春雷
王建成
Ningbo East Electronics Limited
1/5
1. Part Number EFM-260BL
2. Dimension Drawing (Unit: mm)
3.Specification
No.
Item
Specification
3-1
Min. Sound Pressure Level
85dB/12VDC/30cm
3-2
Rate Voltage
12VDC
3-3
Operating Voltage
3~24VDC
3-4
Max. Consumption
10mA/12VDC
3-5
Oscillating Frequency
3.5± 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
4.2g
3-11
Wire Standard
UL1095-26AWG
NOTE:
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 30 cm
Ningbo East Electronics Limited
3/5
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
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
5-7
5-8
Method of Test
Tolerance after
Testing
Sound pressure level
initial value ±10dB
Max. consumption
value ±20%
Oscillating Frequency
value ±20%
Figure 5-6
Ningbo East Electronics Limited
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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: 3920 pcs per export carton
Carton Size: 47× 30.5× 25 cm
G. Weight: 19.0 kgs N. Weight: 16.5 kgs
Ningbo East Electronics Limited
5/5
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