Description
High-Output 50W Mono Audio Power Amplifier Module
The STK4036II is a specialized thick-film hybrid integrated circuit from Sanyo. Unlike the stereo modules in the STK family, the 4036II is a dedicated mono (single channel) amplifier, delivering a robust 50 Watts of continuous power. This makes it a critical replacement part for active subwoofers, center-channel speakers, and public address (PA) equipment.
The "Series II" designation ensures low harmonic distortion (0.4% THD) and excellent thermal stability, maintaining a clean signal even at higher volume levels.
Key Technical Features:
- Continuous Power Output: 50W (at 8Ω, THD = 0.4%)
- Configuration: Mono (Single Channel)
- Compact Design: SIP (Single In-line Package) for slim-profile audio sets.
- Frequency Response: 20Hz to 50kHz
- Operating Voltage: Recommended ±35V (Absolute Maximum ±52V).
- Protection: Features built-in shock noise reduction for smoother power-on/off cycles.
Installation & Cooling:
Due to its high 50W output, the STK4036II generates significant heat. It must be mounted to a substantial heatsink with high-quality thermal grease to ensure longevity. Operating this chip without a heatsink—even for a brief test—will likely cause immediate internal failure.
Technician's Note: Verify your power supply rails do not exceed ±52V before installation, as voltage spikes are a common cause of failure for this specific hybrid substrate.