Specified for operation from -40°C to 105°C (TA).
It supports Bridge-Tied Load (BTL) configurations, allowing the two channels to be combined for high-power mono output (potentially up to 400W depending on the setup). Application and Sourcing Guide
Housed in a ZIP-22 (Zig-Zag In-line Package) or DIP-22P module, which facilitates easy mounting on a heatsink. Stk411-210e Datasheet
You can still find "New Old Stock" (NOS) or refurbished units through specialized distributors like Veswin Electronics or Jotrin Electronics .
Always use high-quality thermal paste and an appropriately sized heatsink. Operating the IC without a heatsink will cause immediate and permanent failure. Ic Stk411 210e(968) - Alibaba Specified for operation from -40°C to 105°C (TA)
It remains highly sought after for repairing vintage AV receivers and for DIY audio enthusiasts who prefer its "warm, musical" analog sound profile over modern Class-D alternatives.
Typically remains below 0.1% to preserve audio signal integrity. Pinout and Internal Architecture You can still find "New Old Stock" (NOS)
According to technical summaries from Alibaba and other electronic component databases, the STK411-210E features: