100W Mono HiFi Audio Amplifier Board 2SC5200+2SA1943 DC 35V
100W Mono HiFi Audio Amplifier Board 2SC5200+2SA1943 DC 35V
100W Mono Channel HiFi Audio Amplifier Board
Upgrade your audio setup with this high-performance 100W Mono Channel HiFi Audio Amplifier Board, built around the renowned 2SC5200 + 2SA1943 transistor pair. Engineered for audiophiles and DIY electronics enthusiasts alike, this compact yet powerful amplifier board delivers clean, full-bodied sound with remarkably low switching noise — so your speakers stay protected and your listening experience stays pure.
Whether you're building a custom home audio system, upgrading an existing setup, or working on a DIY electronics project, this amplifier board offers exceptional value and reliable performance in a space-efficient package measuring just 80 × 50 × 35 mm.
Key Features
- Maximum Output Power: 100W per channel (mono configuration)
- Operating Voltage: DC 35V
- Transistor Pair: 2SC5200 + 2SA1943 — a trusted NPN/PNP complementary pair known for stability and audio fidelity
- Low Switching Noise: Minimal interference to connected speakers for a cleaner sound stage
- Compact Design: 80 × 50 × 35 mm — fits easily into custom enclosures and DIY builds
- Mono Channel: Dedicated single-channel amplification for focused, high-power audio output
- Wide Compatibility: Suitable for a range of speaker systems and audio source inputs
- DIY-Friendly: Ready to integrate into your own amplifier chassis or project enclosure
Specifications
- Model: 2SC5200 + 2SA1943 Amplifier Board
- Channel: Mono (Single Channel)
- Max Power Output: 100W
- Supply Voltage: DC 35V
- Board Dimensions: 80 × 50 × 35 mm
- Transistor Type: NPN + PNP Complementary Pair
Who Is This For?
This amplifier board is ideal for audio hobbyists, DIY electronics builders, home theater enthusiasts, and anyone looking to create or enhance a high-fidelity mono audio channel. It also makes a great component gift for the electronics tinkerer in your life.
Learn More About Audio Electronics
For a deeper understanding of how amplifier circuits and transistor technology work, visit the U.S. Department of Energy for resources on electronics and energy efficiency, or explore NIST for standards in electronic measurements and components.
Frequently Asked Questions
Q: What transistors does this HiFi amplifier board use, and why does it matter?
A: This amplifier board uses the 2SC5200 (NPN) and 2SA1943 (PNP) complementary transistor pair — a combination highly regarded in the audio community for its thermal stability, high current capacity, and excellent linearity. These properties translate directly into cleaner, more accurate sound reproduction at high power levels.
Q: What is the power output and operating voltage of this mono amplifier board?
A: This board delivers a maximum output of 100W per channel (mono configuration) and is designed to operate at DC 35V. Please ensure your power supply matches these specifications for optimal and safe operation.
Q: Will this amplifier board cause noise or interference in my speakers?
A: No — one of the standout design advantages of this board is its low switching noise, which minimizes interference to connected speakers. This keeps your audio output clean and your speaker components well-protected over extended use.
Q: Is this amplifier board suitable for DIY audio projects?
A: Absolutely. At just 80 × 50 × 35 mm, this compact board is designed with DIY builders in mind. It can be integrated into custom amplifier enclosures, home theater builds, or standalone mono speaker systems with ease.