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LLC Transformers

The heart of your high frequency power solution

The LLC transformer is a key component in determining the efficiency of an LLC resonant converter. A resonant power conversion topology minimizes switching losses by promoting zero voltage switching (ZVS), minimizing unnecessary power dissipation in switches. Power dissipation can be lowered to as little as 5%, ensuring 99% transformer efficiency and 95% overall efficiency. Combines enhanced performance with cost and real estate savings.

  • Reduces costs by as much as 75% and real estate up to 50%
  • 99% transformer efficiency and 95% overall efficiency
  • Reduces transformer losses and costs by as much as 30%
  • Power ranges on standard packages from 100 to 800W. High powered custom LLC transformer designs available upon request.
  • Perfect for LED and LCD televisions, LED lightning, and all AC/DC power converters with a PFC front end
  • High power custom designs are also available

 * For standard product: Please select the quantity for each item you wish to order or receive a quote and click the 'Add To Quote' button below.

* For custom product: Please click 'Custom' button below. You will be directed to a page where you can add custom product information and attach prints.
Pin Spacing
Pin Row
No. of Pins
PDF Spec
    100-200W  45 mm
1.772 in
30 mm
1.181 in
24.40 mm
.961 in
5 mm
.197 in
37 mm
1.457 in

    200-300W  43.10 mm
1.697 in
34.80 mm
1.370 in
30.60 mm
1.205 in
5.80 mm
.228 in
36 mm
1.417 in

    300-500W  45 mm
1.772 in
35 mm
1.378 in
28.20 mm
1.110 in
5 mm
.197 in
36 mm
1.417 in

    500-800W  54.85 mm
2.159 in
45 mm
1.772 in
40.32 mm
1.587 in
5 mm
.197 in
40.40 mm
1.591 in

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Product Releases

Precision, Inc. has announced the global launch of its new LLC transformer which provides up to 99% efficiency and extremely low power loss.
Our new LLC Transformer is a combination of two components, a resonant inductor and a transformer, into a single device, which helps cut costs by as much as 75% and real estate by 50%. Perfect for use in high powered devices like LCD televisions, the LLC transformer can meet all of your converter needs with high efficiency and low costs.