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    120VA Toroidal Transformer for Audio Amplifier, 110V to 12V

    5 out of 5 based on 1 reviews | Write a review
    All copper toroidal transformer for audio power amplifier, it is 120VA , single phase, small size and weight, is designed for converting AC supply voltages to one or more AC voltages, for example 110V to 12V or 230V to 2 x 24V (24-0-24).
    SKU: ATO-T-C120VA
    30-day Returns
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    Delivery date: 6-12 days

    High efficiency and lower cost 120VA toroidal transformer for audio amplifier, with a single input of 110V AC and a output of 12V, double outputs are available and is customizable, manufactured and tested in compliance with CE, RoHS, ISO, UL standard.

    Advantages of ATO Toroidal Transformer

    1. High Efficiency: Winding matches core perfectly, which makes the transformer more efficiency.

    2. Long Service Life: With high quality materials and manufacturing technology, the transformer can be used for 30 years.

    3. Less Noise: The core is seamlessly rolled and the winding is set evenly over it, which makes the transformer quiet when it is working.

    4. Less Radiation: Toroidal structure and winding technology reduce electromagnetic radiation.

    5. Low Temperature Rise: Even it is overloaded at 120%, temperature rise will be less than 70℃.

    120VA Toroidal Transformer Specifications

    Model ATO-C120VA
    Phase Single phase
    Power 120VA (120W)
    Primary Voltage 110V AC (Optional: 110V, 120V, 220V, 230V, 240V)
    Secondary Voltage 12V AC (Optional: 12V, 24V, 48V, 110V, 220V, 2x6V, 2x12V, 2x15V, 2x24V, 2x30V, 2x35V, 2x40V, 2x50V, can be customized)
    Secondary Current 10A
    No. of Inputs 1 input
    No. of Outputs

    1 output (4-wire 2 outputs are available)

    Note: For the transformer with 2 outputs 4-wire, each output provides the same voltage and current level, the sum of 2 output power capacities is equal to the total capacity.

    Frequency 50Hz/60Hz
    Winding Material Copper Wire
    Coil Structure Toroidal
    Efficiency 90%-96%
    No-load Loss <2.5W
    Input Wire UL1672-18#Red
    Output Wire UL1015-16#Blue, Black, Orange, Green
    Voltage Strength DC2500V
    Insulation Impedance ≥500MΩ
    Cooling Method Natural air cooling
    Temperature +40℃
    Certification CE, RoHS, ISO, UL
    Warranty 12 months
    External Diameter 105mm
    Pedestal 100*100mm
    Mounting Hole Distance 90*90mm
    Height 47mm
    Weight 2.3kg
    Package Included 1*Toroidal transformer + 1*Accesorries sets (Nut, Shim, Metal disk, Rubber gaske, Pedestal, Screw)

    Toroidal Transformer Accessories

    toroidal transformer accessories

    Toroidal Transformer Mounting Methods

    toroidal transformer mounting method

    Toroidal Transformer Internal Structure

    toroidal transformer internal structure


    Tips: What is the difference between toroidal transformer and R-shaped transformer?

    The core of toroidal transformer is made of high-quality silicon steel sheet by winding, which is characterized by complex process, high efficiency, high cost and high permeability that leads to much smaller volume under the same power. Moreover, its overall dimension can be adjusted arbitrarily, application range is wide, and the secondary coil of toroidal transformer is evenly wound on the primary coil. In addition, the installation method can be diversified due to its circular appearance. In theory, if the core is made of the same material, the interference of magnetic flux leakage of the toroidal transformer is better than that of the R-shaped transformer with the same capacity.

    R-shaped transformer (also known as U-shaped transformer), whose core is composed of two "U-shaped" cores, has a standardized design structure, a relatively single overall dimension, simple winding process and high efficiency. However, the processing technology of core is complex, the form of composition is not likely to change arbitrarily, the cost is slightly higher and the installation method is also relatively single.

    Compared with ordinary transformers, toroidal transformers have great advantages in efficiency, temperature rise, cost, anti-interference, and longevity. This video will showcase its function and benefits.

    Existing reviews of 120VA Toroidal Transformer for Audio Amplifier, 110V to 12V
    Can you change colors of your 120VA toroidal transformer primary and secondary leads?
    Can you change colors of your 120VA toroidal transformer primary and secondary leads?
    From: Rolando | Date: 22/07/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, all lead colors for primary and secondary sides are available (white, red, black, blue, green, yellow, and brown), and we can modify based on your request "free of charge".
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