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electret condenser microphone(passed RoHS standard).CFR price:0.41USD/piece



Weifang Dongke Electric Co., Ltd is a professional acoustic components manufactuer in China.we produce all kinds of electret condenser microphone and digital microphone(substitute of silicon microphone) with good quality and competitive price.please refer to our to find more about us and our products.we are sincerely looking forward to do business with buyers from anywhere.If you have any inquiry,pls contact us via email [This information will show after login with premium membership] .thanks.


Please refer to the attached picture for specification.Thanks


This product has passed following test:


Height : 1m

Drop face : 2cm hardwood board

Duration : 3 times in each of three directions in state of packing

To be no interference in operation after vibrations 20Hz to 2000Hz for 48 minutesat three

directions with 20g (-20%, -0%) peak acceleration.

Temperature : -45± 2℃ ? RTM ? 80±2℃

Duration : 30 min 10 min 30 min.

Cycles : 5 cycles

Temperature Shock

Temperature : -45± 2℃ ? 80±2℃

Cycles : 100 cycles

Operating Condition

Storage Condition



Vibration Test

Drop Test

High Temperature Test

Low Temperature Test

Humidity Test

Temperature : -45℃

Duration : 200 hours

Temperature Cycle Test

Temperature :40℃

Humidity : 90% R.H.

Duration : 200 hours

Temperature : 80℃

Duration : 200 hours

page 7/8

Sensitivity change shall be within ± 3dB (at 1KHz) of initial sensitivity after 3 hours

conditioning at 20℃

Reliability Test





Posted by Jack Liu
e-MailContact company
Weifang Dongke Electric Co., Ltd
Address NO.268,Tongyin street,Weifang,Shandong
City & ZIP
For registered Members only.
For registered Members only.
Key Customers / Clientele
Company Profile Established in June 1999,Weifang Dongke Electric Co., Ltd specializes in developing and producing electret condenser microphone and other acoustic components.We have about 400 staff including 26 R&D engineers now.Since established,the company has been devoting a big effort to research and development of the product .solely in 2006,we have 8 patent applications submitted and already be awarded 4 of them,also we have independently developed more than 20 sets of automated production equipment and newly introduced full set of routine test equipment,thus ensuring the precision and stability of products.So far now,we have formed a full range of microphone products(Ф14mm-3mm) amounting to 300 types.leading the development trend of electronics industry,we have developed SMD and digital microphone and put them into mass production with their good market prospect.
The company has been devoting to the institutionalization and standardization of management.Succefully passing ISO9001:2008 international quality management system and ISO14001:2004 environmental management system,we operate according to the system requirements and devote to improve the product quality actively
Our advanced equipment ensures the reliability,stability and consistency of our products.We are export-orientated in sell.The products are directly or indirectly exported to Taiwan,Hong Kong,Singapore,Japan,Europe,America and other countries.Due to the credible quality also with our customers? recognition and high praise,we have signed technical development agreement,production agreement and product supply agreement with many cellphone manufacturers.
Pls visite our to find more about us and contact us via!

URLFor registered Members only.
Rating (0 reviews)
Keywords (seperated by comma)microphone
Product SpecificationsPlease refer to the attached picture for specification.Thanks!
Industry Categoryacoustic part
Quality/Safety CertificationsRoHS
Delivery Lead Time10 days
Payment & Price TermsL/C
My Offerswhole range of electret condenser microphone products
Product Portfolio / Other Products
Detailed Company Introduction
FOB Price & Port10000000usd
Packaging Details400
Our TeamMr Wang
Web SiteFor registered Members only.

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 Product Details
 Product id  261251
 Visits   517
 Date  2010.08.30

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