Description
Classic 2-Channel AF Power Amplifier Hybrid IC
The STK4151II is a renowned thick-film hybrid integrated circuit from Sanyo's STK series. Designed specifically for high-fidelity audio amplification, this module provides a reliable 30W + 30W stereo output, making it the go-to replacement part for many classic 1980s and 90s stereo receivers.
The "Series II" designation indicates an improved internal circuit architecture that ensures low harmonic distortion and enhanced thermal stability compared to standard modules.
Key Technical Features:
- Continuous Power Output: 30W + 30W (at 8?, THD = 0.3%)
- Configuration: 2-Channel Stereo (SIP-22 Package)
- Frequency Response: 20Hz to 20kHz
- Built-in Muting Circuit: Features internal circuitry to suppress "thump" noises during power-on/off sequences.
- Operating Voltage: Recommended ±27.5V (Max ±42V)
Installation & Safety:
Ensure that the device is mounted securely to a clean heatsink using thermal silicone grease. Failure to provide adequate cooling will result in immediate thermal runaway and permanent damage to the IC.
Note: For best results, it is recommended to check the filter capacitors in the power supply section of your amplifier when replacing this module.