All Size DIP Electromagnetic Buzzer 2 - 4v 4000Hz For Household Appliances

High Quality DIP Magnetic / Electromagnetic Buzzer External Drive / Without Circuit with all size
 
 
Technical Support:
1. We have professional technical support team to support our customers
2. If you have any question for the technology of our products,please Email to us and we will reply to you immediately
 
 
Our Service:
1. Reply your enquiry in 24 working hours.
2. Experienced staffs answer all your questions in professional and fluent English.
3. Customized design is available.
4. Exclusive, considerate and unique solution can be provided to our customers by our well-trained and professional engineers and staffs.
 
 
Features:
Operating Voltage: 2.0-30v
Coil Resistance : 16 ± 3Ω
Sound Output : 85dB
Small Size
Highly efficient
Shot lead time & Low Price.
 
Applications:
Children's toys
Alarm Medical equipments
Telecommunication
Security
Household appliances
Audio and Video Products
 

 
 
Payment and Shipping:
1, Lead time about 3~5 days.
2, Payment: T/T; Western union; Paypal .
3, Shipping: by DHL, Fedex, TNT, UPS, EMS ect
 
 
 
Reliability Test:
After any following tests the part shall meet specifications without any degradation in
appearance and performance except SPL. SPL shall not deviate more than -10 dB
from the initial value

1. Ordinary Temperature Life Test

The part shall be subjected to 96 hours at 25±10℃. Input rated voltage
Resonant frequency, 1/2 duty Square wave.
 
     2.High Temperature Test
The part shall be capable of with standing a storage temperature of +85℃ for 96 hours.
     
     3. Low Temperature Test
The part shall be capable of with standing a storage temperature of ­-40℃ for 96 hours.
 
     4.Humidity Test
Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours
and expose to room temperature for 6 hours
   
     5.Temperature Shock Test
Temperature:70℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
   
     6.Drop Test
Standard Packaging From 1.2m(Drop on hard wood or board of 5cm thick,
three sides, six plain.)
     
     7. Vibration Test
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
 
Note:

As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.
 
 
 
Electrical And Acoustical Measuring Condition

1. Recommended Setting

 
 
 
2. Recommended Test Circuit