STK412-030 PDF Datasheet – AF Power Amplifier

An AF (Audio Frequency) power amplifier is an electronic circuit designed to amplify audio signals to a level suitable for driving speakers or other output devices. These amplifiers are used in various audio applications, including home audio systems, public address systems, musical instruments, and more.

The primary function of an AF power amplifier is to take a low-power audio input signal and boost its power level to a level sufficient to drive a loudspeaker or other load. This enables the reproduction of sound at a higher volume while maintaining good audio quality.

Part Number: STK412-030

Function: Two-Channel Shift Power Supply Audio Power Amplifier IC

Package: SIP 18 Pin Type

Manufacturer: Sanyo Semiconductor

Images:STK412-030 datasheet pinout


This is Two-Channel Shift Power Supply Audio Power Amplifier IC. The STK412-030, 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: 0.3s […]

STK412-030 pdf amplifier sanyo

STK412-030 PDF Datasheet