Before designing a PCB or troubleshooting, always consult the STK412-230 Datasheet PDF for stress limits. Exceeding these values will destroy the IC.
| Parameter | Symbol | Conditions | Rating | Unit | |-----------|--------|------------|--------|------| | Maximum Supply Voltage | Vcc max | No signal | ±55 | V | | Recommended Supply Voltage | Vcc | With signal | ±48 | V | | Peak Output Current | Io peak | Per channel | ±15 | A | | Power Dissipation | Pd | Tc = 25°C | 150 | W | | Junction Temperature | Tj | - | 150 | °C | | Operating Substrate Temp | Tc | - | -30 to +125 | °C | | Storage Temperature | Tstg | - | -40 to +150 | °C |
Note: You must use a sufficiently large heatsink. The thermal resistance (θj-c) is approximately 0.9°C/W.
The STK412-230 is a beast. When paired with a hefty toroidal transformer (500VA+), 10,000µF caps per rail, and a massive heatsink, it delivers clean, dynamic power that rivals many discrete designs. Stk412-230 Datasheet Pdf
But you cannot build or repair it blind. Download the official STK412-230 datasheet PDF before you pick up a soldering iron. Keep it open. The pinout, power limits, and PCB layout notes are your roadmap to a successful build—or a safe repair of that vintage Japanese integrated amp.
Have you worked with the STK412-230? Or are you troubleshooting a blown channel? Drop your questions in the comments below!
STK412-230 is a two-channel, Class H audio power amplifier hybrid IC manufactured by (now part of Before designing a PCB or troubleshooting, always consult
). It is widely used in high-fidelity home theater systems, PA systems, and car audio for its reliability and high power output. Key Technical Specifications
Based on technical datasheets and professional reviews, the STK412-230 is characterized by its high efficiency due to a built-in shift power supply circuit that adjusts voltage based on the input signal level. Output Power : Typically 150W + 150W (Two-channel). Total Harmonic Distortion (THD) : 0.08% typical, ensuring clear audio reproduction. Package Type
: SIP-ZIP (Single In-line Package with ZIP leads), often 18 to 22 pins depending on the specific variant. Operating Temperature : Ranges from -20°C to +75°C Protection Features Note: You must use a sufficiently large heatsink
: Integrated thermal protection and overcurrent protection to prevent damage from overheating or short circuits. Performance Review Highlights Expert insights and user experiences from platforms like AliExpress highlight the following: New original STK412-230 STK412-230B STK412-230C Module
The STK412-230 is a hybrid IC audio power amplifier module (vertical mounting) used in stereo or mono high-power audio applications. It integrates power transistors, driver circuitry, and protection features in a single package for easier amplifier design.
The STK412-230 is a Hybrid Integrated Circuit (Hybrid IC) manufactured by Sanyo (now ON Semiconductor). It is primarily used as a Class AB Audio Power Amplifier.
These chips are commonly found in older home audio systems, stereo receivers, and shelf systems from brands like Pioneer, Sony, and JVC.
| 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 |