You must use a sufficiently large heatsink. The thermal resistance (θj-c) is approximately 0.9°C/W.

(now part of ON Semiconductor/Panasonic). It is widely used in high-fidelity home audio systems, receivers, and DIY amplifier projects due to its built-in "shift power supply" technology, which significantly improves efficiency by switching supply voltages based on the input signal level. IC Components Technical Specifications According to various technical summaries and the STK412-230 Datasheet (PDF) , the key specifications include: Power Output : Delivers between 100W to 150W per channel Amplifier Class , utilizing a high-efficiency switching mechanism. Operating Voltage Max High Voltage (VH) plus or minus 75 cap V Max Low Voltage (VL) plus or minus 43 cap V Typical Dual Supply plus or minus 35 cap V plus or minus 55 cap V Package Type

Several specialized websites are dedicated to hosting millions of component datasheets. These are often the most straightforward way to find a PDF for older parts. Reliable options include:

The STK412-230 is known for its high power efficiency, achieved through a "shift power supply" topology, which optimizes the supply voltage based on the signal level, thus reducing heat dissipation. Power Output

This IC became popular in high-power stereos, home theater systems, and powered mixers from the 1990s to the mid-2000s.

Authoritative datasheets and product listings from sources like Veswin Electronics IC Components define the following core parameters: Output Power: 150W + 150W (min) into an 8-ohm load. Amplifier Class: Operating Voltage: