The STK412-230 is a classic thick-film hybrid audio power amplifier integrated circuit (IC) designed by Sanyo (now part of Onsemi). Famous for its presence in high-end legacy mini-component stereo systems, home theater receivers, and amplifiers from brands like Sony, Aiwa, and Kenwood, this module delivers robust multi-channel audio performance.
or a short-circuit beep, the internal output power transistors are blown. The IC must be replaced.
The Sanyo STK412-230 is a 2-channel, Class H thick-film hybrid IC designed for high-efficiency audio amplification in home stereos and receivers. It features a shift power supply, delivering roughly 100W to 150W per channel with a typical 0.8% total harmonic distortion (THD). View the full STK412-230 datasheet on AllDatasheet . STK412-230 Stereo Audio Amplifier IC - Amazon.in Stk412-230 Datasheet Pdf
) voltage rails to maintain high efficiency and reduce heat.
: Integrated dual channels allow for a compact stereo setup without multiple ICs. The STK412-230 is a classic thick-film hybrid audio
| Pin | Function | |-----|----------| | 1 | Non-inverting input (Ch1) | | 2 | Inverting input (Ch1) | | 3 | Ground | | 4 | Bootstrap (Ch1) | | 5 | Output (Ch1) | | 6 | +VCC | | 7 | -VCC | | 8 | Standby control | | 9 | -VCC (power ground) | | 10 | Output (Ch2) | | 11 | Bootstrap (Ch2) | | 12 | Ground | | 13 | Inverting input (Ch2) | | 14 | Non-inverting input (Ch2) | | 15 | Signal ground |
Non-inverting and inverting audio signal inputs, usually decoupled by electrolytic or film capacitors to block DC voltage. The IC must be replaced
The high power and efficiency of the STK412-230 made it an ideal choice for various real-world audio equipment. It was commonly found in:
The STK412-230 is housed in a standard with a
The STK412-230 is housed in a 15-pin package. While exact pin functions should be verified in the full STK412-230 PDF datasheet , the pins generally cover: Signal Input Left/Right Power Stage: +VCCpositive cap V sub cap C cap C end-sub (High Voltage), +VCCpositive cap V sub cap C cap C end-sub (Low Voltage), −VEEnegative cap V sub cap E cap E end-sub (Low Voltage), −VEEnegative cap V sub cap E cap E end-sub (High Voltage) Output Stage: Speaker Output Left/Right Control Stage: Mute, Ground, Feedback Electrical Characteristics (Typical Conditions)