Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2022-03-24 10:01
141
Company Profile
By certification [File Integrity]
Contact：fhd2022(Mr.)
Email：
Telephone：
Phone：
Area：Beijing
Address：Beijing
Website：http://www.czfhd.net/ http://fhd2022.sxlleather.com/
Technical parameters
Part shall be measured under a condition (Temperature: 5～35℃, Humidity: 45%～85%R.H., Atmospheric pressure: 860 ～1060hPa) unless the standard condition (Temperature: 25±3℃, Humidity: 60±10%R.H. Atmospheric pressure: 860 ～1060hPa) is regulated to measure. |
|
Resonant Frequency |
4000±400Hz |
Operating Voltage |
1～25Vp-p |
Rated Current |
Max.3mA, At 4KHz 50% duty Square Wave 5Vp-p |
Sound Output at 10cm |
Min.75dB, At 4KHz 50% duty Square Wave 5Vp-p |
Capacitance |
12000±30% pF At 120Hz |
Operating Temperature |
-20℃～+70℃ |
Store Temperature |
-30℃～+80℃ |
Net Weight |
Approx 1.0g |
RoHS |
Yes |
DRAWING & DIMENSION
*Unit: mm; Tolerance: ±0.5mm Except Specified
*Housing Material: Black PPO
Frequency Response
5Vp-p 50% duty Square wave, 10cm
Wave Curve
Note: (1) In automated mounting of the SMD sound transducers on PCB, any bending, expanding and pulling forces or shocks against the SMD sound transducers shall be kept minimum to prevent them from electrical failures and mechanical damages of the devices.
(2) In the reflow soldering, too high soldering temperatures and too large temperature
Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices.
Reliability Test
After any following tests the partshall meet specificationswithout any degradation in appearance andperformance 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 ofwith standing a storage temperatureof +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 temperaturefor 6 hours
5 Temperature Shock Test
Temperature: 60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
6 Drop Test
Standard Packaging From 75cm (Drop on hard wood or board of5cm thick, three sides, six plain.)
7 Vibration Test
Vibration: 1000cycles/ min. Amplitude: 1.5mm, Duration: 1 hour in each 3 axes
8 Reflow Test
Use recommendable reflow soldering condition (as shown in 5.1)
(1) No abnormalityshould be foundafter reflow
(2) Good solderingto meet solderingrequirements
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.
Packing
Application
Delivery, shipping and service
Advantage
1. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.
2. Delivery time: about 25~30 days after order details and production confirmed.
3. Strict physical and chemical testing procedures: meet product design and process requirements and provide reliable testing data.
FAQ
Q: Which payment form you can accept?
A: T/T, L/C, Western Union, PayPal etc. We accept any convenient and swift payment term.
Q: Do you have the products in stock?
A: No. All bikes are to be produced according to your order including samples.
Q: What's your warranty terms?
A: We offer different warranty time for different products. Please contact with us for detailed warranty terms.
Q: Is the sample available?
A: Yes, we are providing free of samples are available for you to check the quality once confirmed after 1~2day.
http://www.czfhd.net/
