3D preview of 18V 20A EI Transformer
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Interactive 3D model of 18V 20A EI Transformer

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18V 20A EI Transformer

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Bounding box
108 × 74.6 × 90 mm
Engine
3D Printing B-rep
Parameters
11
Published
November 5, 2026

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The prompt

A electrical transformer 230v to 18v that can handle up to 20 amp. iron core and wires.

Parameters

NameValueRange
Centre leg width36 mm20 – 80
Window width18 mm10 – 40
Window height54 mm30 – 120
Yoke thickness18 mm10 – 40
Lamination stack depth48 mm20 – 120
Bobbin wall thickness2.5 mm1.2 – 5
Bobbin flange thickness2.5 mm1.2 – 5
Primary winding radial build3 mm1 – 10
Secondary winding radial build6 mm1 – 12
Winding corner radius5 mm1 – 12
Flange overhang past winding2 mm0.5 – 4

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

18V 20A EI Transformer - Free CAD Model (STEP, STL) | TextoCAD