Stk411210e Datasheet [new] (TRUSTED)
Because this is an older component, "new old stock" (NOS) or reputable pulls are common sources. Check distributors like Dalbani or Veswin for availability.
Designed for a split power supply (dual supply) configuration.
You can find the STK411-210E at reputable distributors, such as Ariat-Tech or Jotrin. Conclusion
The STK411-210E is a stereo amplifier hybrid IC. It is engineered to provide an efficient and reliable audio amplification solution for amplifiers, mini-components, and active speaker systems. By combining discrete components—transistors, resistors, and capacitors—onto a single thick-film substrate, it ensures optimal performance, thermal matching, and reliability, overcoming the limitations of conventional discrete designs. Key Features stk411210e datasheet
: Standard hybrid modules can only tolerate output short circuits for a very short duration (often less than 2 seconds under full load conditions). Incorporating an external speaker protection relay board with DC offset sensing is strongly advised. Sourcing & Equivalent Part Options STK411-210E SANYO ZIP-22 Transistors - Veswin Electronics
Total Harmonic Distortion (THD) is approximately 0.08% to 0.4% depending on the specific operating conditions.
| Parameter | Conditions | Min | Typ | Max | Unit | |-----------|------------|-----|-----|-----|------| | Quiescent current | No signal | – | 60 | 100 | mA | | Output power (both channels driven) | THD = 0.4% | 45 | 50 | – | W | | Total harmonic distortion | Po = 20W | – | 0.04 | 0.2 | % | | Intermodulation distortion | 60Hz : 7kHz = 4:1 | – | 0.04 | – | % | | Voltage gain | f = 1kHz | – | 40 | – | dB | | Input impedance | – | 27 | 33 | 40 | kΩ | | Output noise voltage | A-weighted, input shorted | – | 0.7 | 1.5 | mV | | Ripple rejection (VCC) | f = 100Hz, Vripple = 0.5Vrms | 35 | 40 | – | dB | Because this is an older component, "new old
Provides the standard STK411-210E PDF which includes internal equivalent circuits and test circuit diagrams.
: Position high-quality decoupling capacitors—typically a combination of a electrolytic capacitor along with a ceramic disc capacitor—directly adjacent to the physical +VCCpositive cap V sub cap C cap C end-sub −VCCnegative cap V sub cap C cap C end-sub
Common failure modes:
A regulated positive and negative DC power supply is required.
The STK411210E dissipates significant heat. The datasheet provides a thermal resistance junction-to-case of 1.5°C/W. To calculate the required heatsink:
