Mini Rectifier and Regulator Board, 5–24V Options

Add a fixed low-voltage DC stage to a suitable transformer-fed project. This small board combines rectification, filtering and a linear regulator. It is for makers matching the input headroom and load to the selected output.

• ✅ Choose a fixed project voltage — Seven regulator options provide different rails.
• ✅ Combine conversion stages — Rectifier, filter and regulator share one board.
• ✅ Fit a compact assembly — The small PCB uses little enclosure space.

Low-voltage AC input, never direct mains

Choose 5, 6, 9, 12, 15, 18 or 24V output. The source explicitly excludes AC 220V input. An appropriate isolated low-voltage transformer or approved source is required.

The output limit is described as up to 600 mA, decreasing with input/output difference and heat. A regulator part number does not guarantee full current without cooling. Verify wiring and actual voltage before connecting a load.

Technical details

• Regulator family: 78xx
• Fixed outputs: 5, 6, 9, 12, 15, 18 or 24V
• Maximum output label: 600 mA, heat-dependent
• Input maximum described: AC 22V, or 24V for 24V-output version
• Size: Approximately 43 × 23 × 25 mm
• Direct mains connection: Prohibited
• Package: One board

Match the isolated input and heat limits before adding a fixed DC rail to your project.

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