2SC5200 / 2SA1943 Mono Class AB Amplifier Boards 250W
The 2SC5200 / 2SA1943 Mono Class AB Amplifier Board 250W is a high-performance audio amplification module designed for delivering powerful and clear sound output. Built around the well-known complementary transistor pair 2SC5200 (NPN) and 2SA1943 (PNP), this amplifier board uses a push-pull Class AB topology to achieve an excellent balance between efficiency and audio fidelity. These transistors are widely respected in audio applications for their durability, high current handling, and stable performance under demanding conditions.
This amplifier board is capable of producing high output power, typically around 200W to 250W depending on the power supply and load configuration. It operates using a dual power supply system and is commonly paired with appropriate transformers and filtering circuits to ensure stable operation. The Class AB design minimizes distortion while maintaining good efficiency, making it suitable for both music playback and professional audio systems.
Features:
- High power output up to 250W.
- Uses 2SC5200 and 2SA1943 complementary transistors.
- Class AB amplifier design for low distortion and high efficiency.
- Stable performance with dual power supply operation.
- Strong current handling capability for driving low-impedance loads.
- Wide frequency response for clear and balanced audio output.
- Suitable for DIY and professional audio applications.
- Durable and reliable circuit design for long-term use.
Specifications:
| Parameter | Value |
|---|---|
| Amplifier Type: | Class AB Mono |
| Transistors: | 2SC5200 (NPN) + 2SA1943 (PNP) |
| Supply Voltage: | ±35V DC |
| Max. Output Power: | 250W |
| Load Impedance: | 4Ω – 8Ω |
| Frequency Response: | 20Hz – 20kHz |
| Total Harmonic Distortion (THD): | < 0.1% |
| Signal-to-Noise Ratio (SNR): | ≥ 85dB |
| Cooling Requirement: | Heatsink required |
| Channel Type: | Mono |
Important Note: Power Supply Requirements
This amplifier board requires a dual-rail power supply (+V, 0V, -V) for proper operation. It cannot operate using only two connections (35V and 0V).
When using a center-tapped AC transformer, an appropriate bridge rectifier and capacitor smoothing/filter circuit must be used to convert the AC output into positive and negative DC supply rails.
Warning: Verify that the rectified DC output voltage matches the amplifier board’s rated supply voltage before connecting power. Incorrect power supply connections or excessive voltage may damage the amplifier board.
Applications:
- Home Audio Amplifiers.
- Subwoofer Amplifier Systems.
- DIY Audio Projects.
- PA Sound Systems.
- Studio Monitoring Systems.
- Speaker Driving Circuits.
Package Contents:
- 1x 2SC5200 / 2SA1943 Mono Class AB Amplifier Boards 250W
