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FHDDMT87A
产品描述
1.SPECIFICATION
Speaker
|
1 |
Dimension |
87*87*H28 |
|
2 |
Impedance |
8±15%Ω at 1KHz,1.0V |
|
3 |
Rated Input Power |
2W |
|
4 |
Max Input Power |
4W |
|
5 |
Lowest Resonance Frequency |
250Hz±20% |
|
6 |
Audible Noise |
Must be free audible noise (buzzes and rattles)(Fo ~ 7KHz frequency range ,input level up to 4V) |
|
7 |
Sound Pressure Level |
85±3 dB @ 0.4,0.5,0.6,0.8, 1.2KHz @ 1W/1.0m |
|
8 |
Magnet |
Φ40*Φ19*8 |
|
9 |
Operating Temperature |
-20℃～+60℃ |
|
10 |
Store Temperature |
-30℃～+70℃ |
2.Dimensions *Unit: mm
Tolerance: ±0.5mm Except Specified
3.Reliability Test 可靠性測試
3.1 Load Test連續負荷測試
Power 功率：2W
Duration 測試時長：48hrs
3.2 High Temperature Test 耐熱測試
Temperature 溫度：+55±2℃
Relative Humidity：20%-25%RH
Duration測試時長：16hrs
3.3 Damp Heat 耐濕測試
Temperature溫度：40±2℃
Relative Humidity 濕度：90%-95%RH
Duration 測試時長：48hrs
All these tests above should be measured after leaving normal temperature for 1hrs.
Sensitivity difference at 1kHz shall be within ±3dB from initial value after test.
以上試驗完畢後必須於常溫狀態下放置1小時再進行檢測。
測試音壓級變化要求1kHz時必須在±3dB以內。
4.Electrical And Acoustical Measuring Condition
5.Frequency Response
6.Packing
空运追加6块隔磁板:
500*370mm*2块
500*200mm*2块
370*200mm*2块
海运无需追加隔磁板
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