| 1.技术规格 产品测试条件：温度：5～35℃，湿度：45%～85%R.H.，气压：860～1060hPa。 标准测试条件：温度：25±3℃,湿度：60±10%R.H. 气压：860～1060hPa。 |
|||
|
1 |
谐振频率(Hz) |
4000±500Hz |
|
|
2 |
工作电压(Vp-p) |
1～20 Vp-p |
|
|
3 |
额定电流(mA) |
Max.2mA , (在方波5Vp-p 4KHz占空比为50%时) |
|
|
4 |
在10cm处输出音压(dB) |
Min. 80dB, (在方波5Vp-p 4KHz占空比为50%时) |
|
|
5 |
电容量(pF) |
16000±30%pF at 1KHz |
|
|
6 |
工作温度(℃) |
-20℃～+70℃ |
|
|
7 |
储存温度(℃) |
-30℃～+80℃ |
|
|
8 |
净重(g) |
Approx 0.5g |
|
|
9 |
环保 |
Yes |
|
| 2.尺寸 |
Unit: mm |
||
|
|
|||
|
*基本公差:除特殊注明外，一般公差为±0.3mm *外壳材质:黑色LCP *焊盘:2个焊盘,镀锡铜 |
|||
| 3. Electrical And Acoustical Measuring Condition |
|
Recommended Setting
|
| 4.Frequency Response
5Vp-p 50% duty Square wave,10cm |
| 5.Surface mounting condition 5.1 Reflow soldering Recommendable reflow soldering condition is as follows.
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. |
|
5.2 Soldering pattern |
| 6.ReliabilityTest 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 6.1 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. 6.2 High Temperature Test The part shall be capable of with standing a storage temperature of +80℃for 96 hours. 6.3 Low Temperature Test The part shall be capable of with standing a storage temperature of --30℃ for 96 hours. 6.4 Humidity Test Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours and expose to room temperature for 6 hours 6.5 Temperature Shock Test Temperature:60℃/1hour→25℃/3hours→-20℃/1hour→25℃/3hours (1cycle) Total cycle: 10 cycles 6.6 Drop Test Standard Packaging From 120cm(Drop on hard wood or board of 5cm thick, three sides, six plain.) 6.7 Vibration Test Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes 6.8 Reflow Test Use recommendable reflow soldering condition (as shown in 5.1) (1) No abnormality should be found after reflow (2) Good soldering to meet soldering requirements |