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The Two-Channel Class AB Audio Power Amplifier IC 50 W + 50 W (STK402-120S) is a compact, high-performance electronic component designed for LCD TVs and other audio applications. Built as a surface-mount device (SMD) with a high-temperature-resistant plastic body, it delivers reliable power output in confined spaces. Its dual-channel configuration enables balanced audio amplification for stereo systems, while its robust pin configuration ensures stable electrical connections.
| Feature | Specification | Benefit |
|---|---|---|
| Power Output | 50 W + 50 W | Drives high-fidelity audio in TVs and speakers |
| Amplifier Class | Class AB | Balances efficiency and audio clarity |
| Mounting Type | Surface-Mount Device (SMD) | Enables compact PCB integration |
| Operating Temperature | -30°C to +85°C | Ensures reliability in extreme conditions |
| Pin Configuration | 16-pin (arranged for optimal heat dissipation) | Simplifies assembly and reduces errors |
| Certifications | RoHS-compliant, CE-certified | Meets global safety and environmental standards |
Adjustable gain settings and impedance matching parameters allow customization to meet specific audio output requirements or speaker compatibility needs.
Ideal for upgrading home theater systems, portable audio devices, or industrial equipment requiring clear, powerful audio in confined spaces. Its SMD design ensures seamless integration into modern electronics like LCD TVs, while its thermal stability guarantees performance under heavy use.
| Parameter | Base Model | Advanced Model | Pro Model |
|---|---|---|---|
| Peak Power Output | 50W + 50W | 65W + 65W (+30%) | 80W + 80W (+60%)* |
| THD+N (Total Harmonic Distortion) | 1.0% @ 1kHz | 0.8% @ 1kHz (-20% distortion) | 0.5% @ 1kHz (-50% distortion) |
| Signal-to-Noise Ratio | 75 dB | 85 dB (+13.3%) | 95 dB (+26.7%) |
Technical Breakthroughs:
Optimal Version Selection:
With its Class AB design, you can achieve a perfect balance of efficiency and audio quality. The Pro Model’s 80W output paired with 0.5% THD ensures immersive soundscapes for premium electronics, while its SMD form factor simplifies assembly in compact devices.
Note: Comparative values assume industry-standard benchmarks for similar ICs in the same power class.
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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.