STK412-020 PDF Datasheet – AF Power Amplifier

An audio power amplifier is an electronic device that increases the amplitude of audio signals, allowing them to drive loudspeakers and produce sound at higher volumes. Audio power amplifiers are commonly used in various applications, from home stereo systems to professional sound reinforcement setups.

Part Number: STK412-020

Function: Class H Audio Power Amplifier Hybrid IC

Package: SIP 18 Pin

Manufacturer: Sanyo Semiconductor

Images:STK412-020 pdf amplifier


This is Two-Channel Shift Power Supply Audio Power Amplifier IC. The STK412-020, STK412-000 series are class H audio power amplifier hybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.


• Pin compatible IC series that covers power ratings from 50 W × 2 channels to 180 W × 2 channels at 0.7 or 0.8% THD, 20 Hz to 20 kHz. This allows the use of a common PCB for all output classes.

• The pin arrangement is also unified with that of the three-channel STK413-000 series. This means that PCBs designed for three-channel models can also be used for two-channel models.

• Miniature package

— 50 W/ch to 120 W/ch (THD = 0.8%, f = 20 Hz to 20 kHz): 64 × 36.5× 8.5 mm-

— 150 W/ch to 180 W/ch (THD = 0.7%, f = 20 Hz to 20 kHz): 78 × 44× 9 mm- – Not including the IC pins.

• Allowable load shorted time: 0.3 s   […]STK412-020 datasheet pinout

STK412-020 PDF Datasheet