Description
Compact 35W Mono Audio Power Amplifier Module
The STK4030II is a reliable thick-film hybrid integrated circuit manufactured by Sanyo. Designed for split-rail power supplies, this mono module provides a consistent 35 Watts of power. It is an essential replacement part for the restoration of mid-80s audio equipment, compact receivers, and active speaker systems.
The "Series II" architecture is celebrated for its balanced performance, offering low harmonic distortion (0.4% THD) and excellent thermal stability in a space-saving package.
Key Technical Features:
- Continuous Power Output: 35W (at 8Ω, THD = 0.4%)
- Configuration: Mono (Single Channel)
- Package Design: Slim SIP (Single In-line Package) for efficient board layout.
- Frequency Response: 20Hz to 50kHz
- Operating Voltage: Recommended ±30V (Absolute Maximum ±45V).
- Protection: Features integrated shock noise reduction to prevent turn-on/turn-off "pops."
Installation & Thermal Care:
The STK4030II must be securely mounted to a flat heatsink with high-quality thermal silicone grease. Because of its 35W output in a small form factor, thermal management is critical; operating the IC without a heatsink for even a short period will cause permanent damage to the hybrid substrate.
Technician's Note: Always verify your power supply rail symmetry and ensure it does not exceed the ±30V recommendation for optimal longevity and signal purity.