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FHDDMT4028A
FHDDMT4028A
零件应在一个条件下(温度:5~35℃,湿度:45%~85%R.H.,大气压:860~1060hPa)进行测量,除非调节标准条件(温度:25±3℃,湿度为60±10%R.H.大气压:860~1060hPa)来进行测量。
关键词:蜂鸣器 | 喇叭| 物化片
产品描述
1.SPECIFICATION
Speaker
1 |
Dimension |
40.2*28.2*H11.6mm |
|
2 |
Impedance |
8Ohm ±20% at 1.2KHz,1.0V |
|
3 |
Rated Input Power |
2.0W |
|
4 |
Max Input Power |
3.0W |
|
5 |
Lowest Resonance Frequency |
400±20%Hz |
|
6 |
Audible Noise |
The input power shall be set at rated noise power(2.0W). Using an audio oscillator sweep from F0 to 16KHZ in free air. There shall be no buzzes,rattles,nor spurious noises. |
|
7 |
Sound Pressure Level |
99±3dB SPL(0.1m,1.0W) at1.0,1.2,1.5,2.0KHz (0dB SPL=20μPa) |
|
8 |
Distortion |
Less exceed≤7% |
|
9 |
Operating Temperature |
-20℃ to + 70℃ |
|
10 |
Store Temperature |
-30℃ to +80℃ |
2.Dimensions
3.Reliability Test 可靠性測試
3.1 |
High Temperature Test |
High Temperature: +80℃±5℃ |
3.2 |
Low Temperature Test |
Low Temperature: -30℃±5℃ |
3.3 |
Humidity Test |
Temperature: +40℃±5℃ |
3.4 |
Vibration Test |
Vibration: 10Hz~55Hz |
3.5 |
Temperature Cycle Test |
|
3.6 |
Drop Test |
Height: 1.0m |
3.7 |
Load Test |
Noise: White noise |
The test shall be carried out on the parts that passed 12hours in temperature 20℃.
The sensitivity difference from the initial value shall be within ±3dB.
4.Electrical And Acoustical Measuring Condition
5.Frequency Response

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