25A AC-DC Rectifier Filter Power Supply Bare PCB Board

25A Single AC-DC Audio Amplifier Rectifier Filter Power Supply Board — Bare PCB

Build a clean, stable power supply for your audio amplifier projects with this high-quality bare PCB board. Designed for DIY electronics enthusiasts, this board supports a max 25A bridge rectifier and dual filter capacitors, making it an ideal foundation for amplifier power supply builds. Available in packs of 1 or 3 boards so you can stock up for multiple projects.

Key Specifications

• Material: FR-4 PCB
• Board Size: 73 × 73 mm (Length × Width)
• Board Thickness: 1.6 mm
• Surface Finish: Double-sided solder resist for maximum durability
• Max Bridge Rectifier Rating: 25A
• Capacitor Slots: 2 × capacitors (supports 30 mm or 35 mm diameter)
• Country of Origin: Made in China

Wiring Overview

AC Input Connector

• AC: AC transformer connection line
• GND: Ground connection to transformer

Note: When using a single-voltage transformer, connect only one AC terminal and GND — leave the second AC terminal empty. This configuration will still double the output voltage.

DC Output Interface

• −Vout: Negative output terminal
• GND: Ground
• +Vout: Positive output terminal

What's in the Box

• 1 or 3 × Bare PCB Board(s) (no additional components included)

Please Note: This listing is for the bare PCB board only. Rectifier bridges, capacitors, and all other components are not included and must be sourced separately.

Ideal For

• DIY audio amplifier power supply builds
• Electronics prototyping and custom power supply projects
• Hobbyists and engineers working with AC-DC conversion circuits

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Does the 25A AC-DC rectifier filter power supply board come with capacitors or a bridge rectifier included?

A: No — this listing is for the bare PCB board only. The board supports up to a 25A bridge rectifier and two filter capacitors (30 mm or 35 mm diameter), but all components including the rectifier and capacitors must be purchased separately and soldered by the user.

Q: What size is the AC-DC filter power supply PCB board?

A: The board measures 73 × 73 mm with a thickness of 1.6 mm. It is made from FR-4 material with a double-sided solder resist finish for improved durability and ease of soldering.

Q: Can I use this bare PCB board with a single-voltage transformer?

A: Yes. When using a single-voltage transformer, connect one AC terminal and GND only, leaving the second AC terminal empty. This configuration will still produce a doubled output voltage, making it flexible for a range of amplifier power supply builds.

Q: What quantity options are available for this rectifier filter power supply PCB board?

A: This board is available in a pack of 1 or a pack of 3, allowing you to buy just what you need or stock up for multiple DIY audio amplifier power supply projects at once.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.