Description
Compact 20W Mono Audio Power Amplifier Module
The STK4024II is a classic thick-film hybrid integrated circuit from Sanyo. Designed for split power supply applications, this mono module provides a clean 20 Watts of continuous power. It is a vital replacement part for mid-80s slim-profile audio sets, compact receivers, and dedicated active speaker systems.
As part of the "Series II" line, it features an improved internal constant current circuit that ensures low harmonic distortion (0.4% THD) and high thermal stability in a miniature package.
Key Technical Features:
- Continuous Power Output: 20W (at 8Ω, THD = 0.4%)
- Configuration: Mono (Single Channel)
- Slim Design: Small-sized package allowing for thinner audio equipment designs.
- Frequency Response: Full-range audio capability from 20Hz to 50kHz.
- Operating Voltage: Recommended ±23V (Absolute Maximum ±35V).
- Pin Compatibility: Member of a series ranging from 20W up to 70W for flexible design needs.
Installation & Safety:
Proper thermal management is essential for the STK4024II. It must be mounted to a flat, clean heatsink using high-quality thermal silicone grease. Because this is a high-density hybrid substrate, operating the module without a heatsink for even a brief test will cause immediate and permanent internal damage.
Technician's Note: Before installation, verify that your power supply rails are healthy and do not exceed ±23V to ensure the longest possible lifespan for the module.