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    9V AC to DC Wall Adapter, 9W/ 18W, 1A/ 2A

    5 out of 5 based on 1 reviews | Write a review
    Low-price AC/DC wall adapter with output voltage 9VDC, rated power 9W/ 18W, output current 1A/ 2A, capacity 1000mA/ 2000mA, 98% high efficiency. The wall adapter power supply is suitable for blood glucose meter, blood type meter, attendance fingerprint machine and CCTV.
    This product has a minimum quantity of 3
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    Delivery date: 6-12 days

    9V wall mount AC adapter with cheap price, which features frequency 50-60Hz, 100-250VDC input voltage, DC port size 5.5*2.5mm (compatible 5.5*2.1mm). The wall plug adapter has the advantages of good flexibility, fast charging speed, environmental protection, non-toxicity, good flexibility, and durability.


    Model ATO-AWA-SPF-09
    Rated power 9W/ 18W
    Output voltage 9VDC
    Output current 1A/ 2A
    Input voltage 100-250VAC
    Frequency 50-60Hz
    DC port size 5.5*2.5mm (compatible 5.5*2.1mm)
    Efficiency 98%
    Shell material Fireproof plastic enclosure
    Colour Black
    Capacity 1000mA/ 2000mA
    Input ripple ≤80mV
    Applicable equipment Sphygmomanometer/ blood glucose meter/ blood type meter/ attendance fingerprint machine/ CCTV
    Size 74mm*42mm*28mm
    Certificates CE, FCC, RoHS
    Plug GB/ US/ EUR/ JPN/ UK/ GER/ AUS
    Warranty 2 years

    Dimension (mm)

    Dimension of AC wall adapter

    Tips: How to Solve the Electromagnetic Compatibility of AC Wall Adapter?

    The single-stage EMI filter of the wall adapter power supply mainly includes common mode chokes and filter capacitors. The EMI filter can effectively suppress the electromagnetic interference of the switching power adapter. Using soft switching start technology, adding inductance to the original hard switching circuit And capacitive elements, using the resonance of capacitance and inductance to reduce du/dt and di/dt during the switching process, so that the voltage drop when the switching device is turned on is before the timing of the rise of the current, or the current drop is before the voltage when the switching device is turned off. The timing of the rise of the voltage and current to eliminate the overlap of voltage and current. Reasonable use of electromagnetic interference filters, one of the main purposes of EMI filters, power grid noise is a type of electromagnetic interference, which belongs to radio frequency interference, and the frequency spectrum of its conducted noise is roughly 10KHz~30MHz, up to 150MHz. In general, the differential mode interference amplitude is small and the frequency is low, and the interference caused is small, the common mode interference amplitude is large, the frequency is high, and radiation can be generated through the wire, which causes greater interference.

    Existing reviews of 9V AC to DC Wall Adapter, 9W/ 18W, 1A/ 2A
    Work as intended!
    Purchased this ac to dc wall adapter because I lost the original one. I located the plug that fit my device and it booted up right away. It works perfect and everything goes well. Highly recommend it!
    From: Gates | Date: 28/04/2022
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