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STK412-230 Datasheet PDF: The Complete Guide to Pinouts, Specifications, and Application Circuits

Introduction

If you are working on high-fidelity audio amplification, vintage stereo repair, or a DIY project requiring robust power output, you have likely encountered the STK412-230. This hybrid thick-film IC from SANYO (now ON Semiconductor) has been a workhorse in mid-to-high-end consumer electronics for decades. However, finding a complete, reliable STK412-230 Datasheet PDF can be challenging, as many online sources offer incomplete scans or misleading information.

Package Type: Housed in a ZIP18 (Zigzag Inline Package) or SIP18 module, optimized for heat dissipation. Features and Design Advantages STK412-230 Stereo Audio Amplifier IC - Amazon.in Stk412-230 Datasheet Pdf

Common Issues & Repair Tips

• Counterfeits are rampant. If you buy an STK412-230 from eBay for $15, it is fake. Real ones cost $40–80+. The datasheet shows the exact mold shape and laser markings.
• Check for DC offset. Before connecting speakers, measure output pins (5 & 8) against ground. Should be under ±50mV. High DC offset means a dead module.
• Muting function. The STK412-230 has a built-in muting circuit (controlled via a few external components). The datasheet explains how to delay turn-on to avoid "thump."

To download the full STK412-230 Datasheet PDF, you can visit authoritative component repositories:  STK412-230 Datasheet PDF: The Complete Guide to Pinouts,

Key Specs (From the Datasheet)

| Parameter | Rating | | :--- | :--- | | Max Output Power (per ch) | 230W (4Ω, 10% THD) | | Typical RMS Power | 150W–180W (8Ω, 0.4% THD) | | Supply Voltage (Recommended) | ±55V to ±75V DC | | Max Supply Voltage | ±85V DC | | Quiescent Current | 100 mA (typical) | | Load Impedance | 4Ω to 16Ω | | Package | SIP-22 (Single Inline Package, 22 pins) | Counterfeits are rampant