PW28 Dual Power Supply Rectifier Filter Board 25A

The PW28 (SFT-PW28) Dual Power Supply Rectifier Filter Board is a high-current, unregulated linear power supply module designed specifically for high-fidelity audio amplifiers and demanding DIY electronics projects. It efficiently converts dual AC input from a center-tapped transformer into a clean, stable dual DC output (V+, GND, V-). Equipped with a heavy-duty 25A flat bridge rectifier, this board is built to handle high current spikes with minimal thermal losses.

This rectifier board features four high-capacity electrolytic filter capacitors that work in parallel to suppress AC ripple and noise, ensuring a low-noise DC output that is critical for audio clarity in Class A/B or Class D power amplifiers. With its robust screw terminals, onboard LED power indicator, and compact FR4 glass fiber PCB layout, it provides a reliable and easy-to-integrate power stage for subwoofers, active speakers, and custom linear power supply builds.

Features:

• High Current Capacity: Features a robust 25A flat bridge rectifier for efficient AC-to-DC conversion under heavy loads.
• Dual Rail Output: Designed for center-tapped transformers to provide unregulated dual DC outputs (Positive, Ground, Negative).
• Excellent Ripple Filtering: Utilizes four high-quality electrolytic capacitors to minimize voltage ripple and noise.
• Onboard LED Indicator: Integrated LED provides immediate visual confirmation of the power status.
• Heavy-Duty Terminals: Equipped with high-quality screw terminal blocks for secure, low-resistance wiring.
• Compact & Durable: Built on a high-grade FR4 PCB with optimized trace routing for enhanced heat dissipation and reliability.

Package Includes:

1 x PW28 Dual Power Supply Rectifier Filter Board 25A