Stk411-210e Datasheet Page

The IC generates significant heat when driving 6-ohm loads at full power. It must be securely bolted to a large aluminum heatsink. Use a high-quality thermal compound (silicon grease) between the IC substrate and the heatsink. If the substrate temperature exceeds 125°C, the internal transistors run a high risk of thermal runaway and permanent failure. Speaker Protection

Class-H technology allows the device to switch between low and high voltage rails. This reduces power dissipation during low output periods and improves overall thermal efficiency. Key Technical Specifications Value / Rating 120W + 120W (at THD = 0.4%) Load Impedance Ωcap omega Max Supply Voltage (No Signal) ±plus or minus Max Supply Voltage (With Signal) ±plus or minus Thermal Resistance ( j-c) Operating Substrate Temperature Storage Temperature Stk411-210e Datasheet

I can guide you through tailored diagnostic workflows or provide standard peripheral application circuit values. Share public link The IC generates significant heat when driving 6-ohm

Here are the verified specifications from the Sanyo datasheet and credible repair forums: If the substrate temperature exceeds 125°C, the internal

Powers the internal low-signal amplification stages.

Scrape away all old, crusty silicone thermal compound using isopropyl alcohol and a non-abrasive plastic tool.