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  • 丹姆德

    FHDQT30A


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    • a35.jpg

    FHDQT30A

    零件應在一個條件下(溫度:5~35℃,濕度:45%~85%R.H.,大氣壓:860~1060hPa)進行測量,除非調節標準條件(溫度:25±3℃,濕度為60±10%R.H.大氣壓:860~1060hPa)來進行測量。


    所屬分類: 腔體喇叭
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    關鍵詞:蜂鳴器 | 喇叭| 物化片

    產品描述

    1.SPECIFICATION
    Speaker

    1

    Dimension

    30*H8.0mm

    2

    Impedance

    4Ω±20% at 2 KHz 1.0Vms Sine Wave

    3

    Rated Input Power

    2.0W

    4

    Max Input Power

    2.2W

    5

    Lowest Resonance Frequency

    1250HZ±20% at 1.0V Sine wave

    6

    Audible Noise

    Must be free audible noise (buzzes and rattles)(F0 ~ 15KHz frequency range ,input level up to 2.83V)

    7

    Sound Pressure Level

    96±3dB(AT 0.1m/2.0W, Average at 1KHZ)

    8

    Distortion

    Not exceed 10% at 2KHz 2W

    9

    Operating Temperature

    -20℃~+60℃

    10

    Store Temperature

    -30℃~+70℃

     

    2.Dimensions

    *Unit: mm; Tolerance: ±0.3mm Except Specified

     

    3.Reliability Test 可靠性測試

     

    3.1

    High  Temperature  Test

    High  Temperature:   +70℃±3℃
    Duration :            96 hours

    3.2

    Low Temperature  Test

    Low  Temperature:    -30℃±3℃
    Duration :            96 hours

    3.3

    Humidity  Test

    Temperature:         +40℃±5℃
    Relative  humidity:    90%~96% RH
    Duration :            96 hours

    3.4

    Vibration  Test

    Vibration:            10Hz~500Hz   
    Amplitude:           0.35mm or acceleration : 50m/s2
    Duration :            2h per axis=10 cycles ; 3 axis

    3.5

    Temperature  Cycle  Test

    Temperature:         -30℃       +70℃
    Duration :            2 hours    2 hours
    Cycle:               6 Cycle

    3.6

    Drop  Test
    (under the unit)

    Height:              1.0m
    Cycle:               10 Cycles

    3.7

    Load  Test

    Noise:               White noise
    Power:              2.0W
    Duration:            96 hours and satisfy the test listed on   item 05,08,14.

    Sensitivity difference shall be within (3dB) and should satisfy the test described under item 14  after each following test

     

    4.Electrical And Acoustical Measuring Condition

    5.Frequency Response 

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