EFM-810

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-- 810 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 2015-2-9 汤礼东 王建成 1.0 Released 汤礼东 2011-12-21 张春雷 王建成 Ningbo East Electronics Limited 1/5 1. Part Number EFM-810 2. Dimension Drawing (Unit: mm) 3.Specification No. Item Specification 3-1 Min. Sound Pressure Level 88dB/12VDC/30cm 3-2 Rated Voltage 12VDC 3-3 Operating Voltage 3~28VDC 3-4 Max. Consumption 5mA/12VDC 3-5 Oscillating Frequency 3.5±0.5 kHz 3-6 Tone Nature Continuous 3-7 Operating Temperature -20~+70ºC 3-8 Case Material/Color ABS/Black 3-9 Weight 9.3g 3-10 Wire Standard UL1095-28AWG 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 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 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: 1140 pcs per export carton Carton Size: 47× 30.5× 33 cm G. Weight: 13.4 kgs N. Weight: 10.6 kgs Ningbo East Electronics Limited 5/5