1Model NoERV38210-02
2Impedance .150 Ohm ±20% at 1KHz
3Sensitivity97+/-3dB at 1kHz 60mV with IEC 318 coupler
5Axial Director (at 1KHz 0dB 1A/M)≥-19dB
6Radial Director (t 1KHz 0dB 1A/M)≥-22dB
7Max. Input PowerMust be normal at a white noise , 50mW for 1 minute.
8Buzz, Rattle, etc.Should not be audible at 1V sine wave between 300 Hz to 3.4 kHz
9Appearance.Should not exist any obstacle to be harmful to normal operation: damages, cracks, rusts, and distortions, etc
10Buzz, Rattle, etc.Should not be audible at 1V sine wave between 300 Hz to 3.4 kHz
11Terminal Strength.Capable of withstanding 1 kg load for 15 sec without resulting in any damage or rejection
12Load Test.1mW white noise (-filter) is applied for 72 hours satisfy the tests listed on item 03,04,09, and 10

Fob Price:Price Negotiable

Supply Ability:200 thousand PCS per month

Mini Quantity:5000 PCS


Payment Terms:Cash on delivery

Clients:□supplier □manufacturer □company □factory □distributor □agent □final user

Company Introduction:

Established Time:1996

Company Location:Changzhou Esuntech Co.,Ltd. locates in Jiangsu near Shanghai which is convenient for goods transportation and customer visiting. And we have Electromax Co as the agent  in Seoul Korea.

Main Poducts:

Buzzer: piezoelectric (piezo) vibration element,piezoelectric buzzer,magnetic buzzer,SMD buzzer

Speaker:piezo tweeter,mylar speaker,loudspeaker,tweeter speaker,TV speaker,car speaker,multimedia speaker,woofer,sub-woofer,waterproof speaker etc

Ultrasonic sensor: for car parking system or distance tester



ISO9001:2000 & QS9000:1998, ROHS compliant 

Marketing Countries:  

 USA,Korea,Brazil,Canada,Russia,Turkey,Spain,Germany and so on.

Company Advantages:

We have excellent engineer (including Korea engineer)and we are focus on product innovation , Management innovation.The quality of product was recognized by customer from all over the world.Our products are sold more than twenty countries and regions around the world.our products are widely recognized  by them.And we have long-team relationship with the client.

YC2 International customers.jpg

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