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Discriminator Electronic Components And Materials

    Buy cheap Discriminator Electronic Components And Materials from wholesalers
     
    Buy cheap Discriminator Electronic Components And Materials from wholesalers
    • Buy cheap Discriminator Electronic Components And Materials from wholesalers
    • Buy cheap Discriminator Electronic Components And Materials from wholesalers
    • Buy cheap Discriminator Electronic Components And Materials from wholesalers
    • Buy cheap Discriminator Electronic Components And Materials from wholesalers
    • Buy cheap Discriminator Electronic Components And Materials from wholesalers

    Discriminator Electronic Components And Materials

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    Brand Name : HM
    Model Number : KHZ
    Certification : Rohs
    Price : €0.15
    Payment Terms : T/T, Western Union, MoneyGram
    Supply Ability : 1000000
    Delivery Time : 35 day
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    Discriminator Electronic Components And Materials

    Piezoelectric Ceramic Discriminator CDBCB455KCAY24-R0 CDBc455C24 Alternative model:JGK04-0155K


    1. Scope


    The specification applies to the discriminator for IF demodulation used in communications equipment .


    2.Spec No.:HM-180059


    3.Part No.:CDBC455C24


    4. Input signal condition


    NO.ItemSpecification
    4 – 1Input level-27.0dBm
    4 – 2Deviation±1.5KHz
    4 – 3Frequency Modulation1.0 khz

    5.Electrical Characteristics


    NO.ItemSpecification
    5 – 1Modulation Frequency455±1.0KHz
    5 – 2Demodulated Bandwidth(3dB)±4.0KHz min (from 455 kHz)
    5– 3Demodulated Output100±40mV. (at 455 kHz)
    5 – 4Demodulated Distortion Factor2.0%Max.
    5 – 5Withstand VoltageD.C. 50V for 1 minute

    6. :Measurement


    6-1. Measurement Condition


    Unless otherwise sepecified ,the shandard range of atmospheric conditions for measurements and tests are as follows:

    Ambient temperature:5℃ to 35 ℃ Relative humidity :45% to 85%

    Air pressure :86Kpa to 106 Kpa

    If there is doubt about the results, measurement shall be made within the following limits:

    Ambient temperature:18℃ to 22 ℃ Relative humidity :60% to 70%


    Air pressure :86Kpa to 106 Kpa

    6-2. Measuring Circuit


    Discriminator Electronic Components And Materials


    6-3. Test Method



    Input signal condition

    Input level80dBμ
    Frequency Deviation±4.0 kHz
    Modulation Frequency1.0 kHz

    Demodulated 3dB Bandwidth

    Input the above signal and sweep the carrier around 455 kHz, and find

    Out the maximum audio output frequency. Then sweep the carrier frequency again and find two frequencies, which are observed

    –3dB attenuation points from the maximum point.

    Higher frequency point is called (f1) and lower called (f2). (F1-455KHz) is defined as upper 3dB bandwidth and (455KHz-f2) defined as lower

    3dB bandwidth.



    Demodulate Output

    Demodulated output shall be measured when carrier frequency is adjusted to 455KHz.

    Demodulated

    Distortion Factor

    Carrier frequency is adjusted to

    455KHz.And distortion shall be measured with 1 kHz modulation frequency.


    7./outline

    7-1.

    Appearance:Mark shall be clear,appearance shall be smooth and no damage.

    7-2.

    Material List


    NO.ItemSpecification
    1CasePolybutenetelephthalate (mixture of glass fiber)
    2TerminalPhosphor bronze Ag Clad
    3Base SealingEpoxy resin

    7-3.

    Dimensions:(mm)

    Discriminator Electronic Components And Materials

    (1)(2) Input/Output


    (3)Dummy

    8.Physical Characteristics



    NO.


    Item


    Measurement condition


    Requirement


    8-1


    Random Drop


    Filter shall be measured after 3 times random


    No visible damage and it



    drops from the height of 30cm on concrete

    floor

    meet Table 1

    8-2


    Vibration


    Filter shall be measured after being applied vibration of amplitude of 1.5mm with 10-55Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours


    No damage and it meet

    Table 1.


    8-3


    Solderability


    Lead terminals are immersed in aide solder for

    5 sec and then immersed in soldering bath of

    230±5℃, for 3±0.5 sec.


    At least 95% lead terminals shall be covered with solder.


    8-4

    (1)


    Terminal strength Pulling


    After force of 1kg for 10 seconds is applied to each terminal in axial direction, Filter shall be measured.


    No damage, no cut-off and it meet Table 1.


    (2)


    Bending


    After lead terminals shall be fixed at 2mm from filter’s body, they shall be folded up to

    90°from their axial directions and folded

    back to –90°.Then folded back to their axial direction, the speed of folding be each 3 seconds.


    No damage, no cut-off and it meet Table 1.


    9.Environmental Characteristics



    NO.


    Item


    Measurement condition


    Requirement


    9 – 1


    Humidity


    After being placed in a chamber with 90-95% R.H. at 40±2℃ for 100 hours and then being placed in room temperature for 1 hour, filter shall be measured.


    It shall meet Table 1.


    9 – 2


    Resistance to

    Solder Heat



    It shall meet Table 1.



    Lead terminals are immersed up to 1.5mm from filter’s body in soldering bath of 350±

    10℃, for 3±0.5 sec. And then filter shall be measured after being placed in room temperature for 1 hour.


    9 – 3


    High Temperature


    After being placed in a chamber with 80±2

    ℃,for 100 hours and then being placed in room temperature for 1 hour , filter shall be measured.


    It shall meet Table1


    9 – 4


    Low Temperature


    After being placed in a chamber with -20±2

    ℃,for 100 hours and then being placed in room temperature for 1 hour, filter shall be measured.


    It shall meet Table 1


    9 – 5


    Heat Shock


    After being kept at room temperature, filter shall be placed at temperature of –55 ℃ , for

    30 minutes, then be placed at temperature. 85

    ℃, for 30 minutes. After that returned to –55

    ℃ again. Repeated above cycle for 5 times. After being kept in room temp. for 1 hour, filter shall be measured


    It shall meet Table 1


    10. Reflow conditions


    Discriminator Electronic Components And Materials


    Table 1



    Item


    Specification

    Modulation Frequency455±1.0KHz

    Demodulated

    Bandwidth(3dB)

    ±4.0KHz min (from 455 kHz)
    Demodulated Output100±40mV. (at 455 kHz)

    Demodulated Distortion

    Factor

    2.0%Max.


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