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    SENICO ELECTRONICS INTL CO., LIMITED

    Knowles BK-21839-000

    Part No.:
    BK-21839-000
    Manufacturer:
    Knowles
    Category:
    Speakers
    Package:
    Datasheet:
    SENICO ELECTRONICS INTL CO., LIMITEDBK-21839-000.pdf
    Description:
    SPEAKER 750OHM TOP PORT 127DB
    Quantity:

    Unit Price:$0

    Ext Price:$0

    Payment:
    Payment
    Shipping:
    Shipping

    Inventory:30,413

    Send us your inquiry,we will respond immediately.

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    In Stock:30,413

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    Product details

    • Specifications
    • FAQ
    • Comparison
    Attributes
    Property Value
    Manufacturer:
    Knowles
    Series:
    BK
    Packaging:
    Bulk
    Product Status:
    Active
    Technology:
    Magnetic
    Type:
    Receiver, Balanced Armature
    Frequency Range:
    200 Hz ~ 6 kHz
    Frequency - Self Resonant:
    -
    Impedance:
    750 Ohms
    Efficiency - dBA:
    127.00
    Efficiency - Testing:
    -
    Efficiency - Type:
    Sensitivity
    Power - Rated:
    -
    Power - Max:
    -
    Port Location:
    Top
    Shape:
    Rectangular
    Material - Cone:
    -
    Material - Magnet:
    -
    Ingress Protection:
    -
    Ratings:
    -
    Termination:
    Solder Pads
    Size / Dimension:
    0.310" L x 0.220" W (7.87mm x 5.59mm)
    Category:
    Speakers

    1. How to order BK-21839-000 on SENICO ELECTRONICS INTL CO., LIMITED?

    Currently, SENICO ELECTRONICS INTL CO., LIMITED only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does SENICO ELECTRONICS INTL CO., LIMITED guarantee that BK-21839-000 is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the BK-21839-000. All suppliers must pass our qualification reviews before they can publish their products including BK-21839-000 on SENICO ELECTRONICS INTL CO., LIMITED; we pay more attention to the channels and quality of BK-21839-000 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the BK-21839-000 price and inventory displayed accurate?

    The price and inventory of BK-21839-000 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

    Warm Tips: Some orders in certain payment forms may require handling fee.

    5. How is the shipping arranged?

    Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of BK-21839-000?

    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the BK-21839-000 we delivered, we will accept the replacement or return of the BK-21839-000 only when all of the below conditions are fulfilled:

    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

    (2)We are informed of the defect described above within 90 days after the delivery of BK-21839-000.

    (3)The PartNo is unused and only in the original unpacked packaging.

    Two processes to return the products:

    (1)Inform us within 90 days

    (2)Obtain Requesting Return Authorizations

    7.How to contact us to get technical supports, such as BK-21839-000 pin diagram, BK-21839-000 datasheet?

    If you need any after-sales service, please do not hesitate to contact us.

    Image BK-28507-000 BK-29725-000 BK-21610-000 BK-26824-000 BK-21610-028
    Part Number BK-28507-000 BK-29725-000 BK-21610-000 BK-26824-000 BK-21610-028
    Manufacturer Knowles Knowles Knowles Knowles Knowles
    Series BK BK BK BK -
    Packaging Bulk Bulk Tray Bulk Bulk
    Product Status Active Active Active Active Active
    Technology Magnetic Magnetic Magnetic Magnetic -
    Type Receiver, Balanced Armature Receiver, Balanced Armature Receiver, Balanced Armature Receiver, Balanced Armature -
    Frequency Range 100 Hz ~ 6 kHz 200 Hz ~ 4 kHz 200 Hz ~ 4 kHz 200 Hz ~ 5.6 kHz -
    Frequency - Self Resonant - - - - -
    Impedance 13.3 Ohms 285 Ohms 145 Ohms 29 Ohms -
    Efficiency - dBA - 118.00 125.50 112.00 -
    Efficiency - Testing - - - - -
    Efficiency - Type - Sensitivity Sensitivity - -
    Power - Rated - - - - -
    Power - Max - - - - -
    Port Location Side Top Top Side -
    Shape Rectangular Rectangular Rectangular Rectangular -
    Material - Cone - - - - -
    Material - Magnet - - - - -
    Ingress Protection - - - - -
    Ratings - - - - -
    Termination Solder Pads Solder Pads Solder Pads Solder Pads -
    Size / Dimension 0.310" L x 0.220" W (7.87mm x 5.59mm) 0.310" L x 0.220" W (7.87mm x 5.59mm) 0.310" L x 0.220" W (7.87mm x 5.59mm) 0.310" L x 0.220" W (7.87mm x 5.59mm) -

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