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  • 丹姆德


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    所屬分類: 壓電無源蜂鳴器

    關鍵詞:蜂鳴器 | 喇叭| 物化片


    1.Technical Parameter
    Measuring condition
    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.

    1 Resonant Frequency 4000Hz
    2 Operating Voltage 2-25 Vp-p
    3 Resonance Impedance ≤ 500Ω  At  9.0KHz
    4 Rated Current Max.8mA , At 4KHz 50% duty Square Wave 12Vp-p
    5 Sound Output at 10cm Min.80dB, At 4KHz 50% duty Square Wave 12Vp-p
    6 Capacitance 9000±30% pF At 1KHz
    7 Operating Temperature -40℃~+85℃
    8 Store Temperature -40℃~+85℃
    9 Net Weight Approx 0.75g
    10 RoHS Yes


    2.Dimensions Unit: mm         

    *Unit: mm; Tolerance: ±0.5mm Except Specified
    *Housing Material: Black PBT


    3. Electrical And Acoustical Measuring Condition

    Recommended Setting


    4.Frequency Response

    12Vp-p 50% duty Square wave,10cm


    5.Reliability Test

    After any following tests the part shall meet specifications without any degradation in
    appearance and performance except SPL. SPL shall not deviate more than -5 dB
    from the initial value
    a)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.
    b)High Temperature Test
    The part shall be capable of with standing a storage temperature of +85℃ for 96 hours.
    c)Low Temperature Test 
    The part shall be capable of with standing a storage temperature of -40℃ for 96 hours.
    d)Humidity Test
    Temperature:+40℃±3℃   Relative Humidity:90%~95% Duration: 48 hours
    and expose to room temperature for 6 hours
    e)Temperature Shock Test
    Temperature:60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle)
    Total cycle: 10 cycles
    f)Drop Test
    Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick, 
    three sides, six plain.)
    g)Vibration Test
    Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
    h)Welding test
    Below350℃, within 5 seconds (electric iron below 80W)


    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.


    6.Recommended the wave soldering temperature



    包裝 要求

    1.內盒    500PCS    
    2.外箱     5000PCS /箱    尺寸:37×34.5×56cm










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