Velleman 2120230C Transformer 24VA 2x12V

Velleman 222202102402C Transformer – 1VA Dual-Output Power Transformer

The Velleman 3C is a single-phase power transformer designed to step down 20,470V AC mains voltage to two independent 1V AC secondary windings. With a rated capacity of 24VA and a maximum secondary current of 1 amp per winding, it is suited for powering low-voltage electronic circuits and prototypes.

• Dual 12V AC secondary windings provide two isolated output rails from a single 230V input
• 24VA rated capacity supports moderate-power applications such as LED drivers, small amplifiers, and bench-top power supplies
• Compact and lightweight at 1 kg, easy to mount on a PCB or in an enclosure
• 24 months manufacturer warranty ensures long-term reliability for hobby and prototyping use

What sets the Velleman 24C apart

Unlike multi-output switched-mode power supplies, this traditional toroidal-style transformer delivers clean, low-ripple AC output with no switching noise — ideal for analog audio circuits and sensitive measurement equipment. The separate secondary windings allow flexible configuration: use one winding for a 12V rail and the other for a second 12V rail, or wire them in series for a 24V output.

Ideal for...

Electronics hobbyists, students, and makers working on bench-top prototypes, Arduino or Raspberry Pi projects, or small-scale audio amplifiers. The dual 12V output is particularly useful when a project requires two different voltage rails from a single mains connection.

Application of Velleman 212024C

1. Connect the primary winding to a 230V AC mains supply
2. Take the two 12V secondary outputs to power separate circuit sections or combine them for a higher voltage
3. Use with a bridge rectifier and smoothing capacitors to convert the AC output to DC for DC-powered projects
4. Mount in a well-ventilated enclosure to ensure safe operation during extended use