Description
Reliable 15W Stereo Audio Power Amplifier Module
The STK4122II is a classic thick-film hybrid integrated circuit from Sanyo's legendary STK series. This module is designed for split power supply audio applications, delivering a stable 15W + 15W stereo output. It is the ideal replacement part for mid-80s to 90s compact stereo systems and integrated amplifiers.
As part of the "Series II" line, this IC features an internal muting circuit to eliminate pop noise during power cycles and offers improved harmonic distortion characteristics for a cleaner audio signal.
Key Technical Features:
- Continuous Power Output: 15W + 15W (at 8?, THD = 0.4%)
- Configuration: 2-Channel Stereo (SIP-18 Package)
- Frequency Response: 20Hz to 50kHz
- Operating Voltage: Recommended ±20V (Maximum ±30.5V)
- Compatibility: Direct replacement for NTE1817 and pin-compatible with other STK4102II series modules.
Installation Best Practices:
For long-term reliability, the STK4122II must be mounted to a proper heatsink using high-quality thermal compound. Ensure the mounting surface is clean and level to prevent hotspots that can lead to internal component failure.
Check your power supply rail voltage before installation to ensure it does not exceed the ±30.5V maximum limit.