Stk413-430 Circuit Diagram [portable] Jun 2026

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The STK413-430 is a robust power amplifier thick-film hybrid integrated circuit (IC) developed by Sanyo (now part of ON Semiconductor) and Sanken

The STK413-430 is a Class AB amplifier, meaning it generates a significant amount of heat.

: Refer to the datasheet to locate input pins, output terminals, and power supply rails. For STK series modules, Pin 1 is typically marked with a dot or notch. stk413-430 circuit diagram

The is a thick-film hybrid integrated circuit designed by Sanyo, primarily used as a 3-channel power amplifier for audio applications. It is part of the STK410 series, known for its "insulated metal substrate" technology that provides excellent heat dissipation and high-quality audio reproduction. STK413-430 Pinout & Functionality

The STK413-430 is a 2-channel audio power amplifier IC that can deliver a maximum output power of 40 watts per channel. It operates on a single power supply voltage, ranging from 12V to 24V, and features a low distortion rate, high gain, and a wide range of applications. The IC is packaged in a 9-pin SIP (Single In-line Package) and has a simple, compact design.

In the world of vintage audio repair and high-fidelity DIY projects, the STK series of hybrid integrated circuits occupies a legendary status. Among the most sought-after models for medium-to-high power stereo applications is the (often cross-referenced in design discussions with the STK413-430 series). To truly understand the potential of these chips, one must look beyond the black metal casing and examine the circuit diagram itself. : The STK413-430 is a robust power amplifier

). This removes the need for bulky output coupling capacitors and ensures deep bass response.

While you should always consult the specific datasheet for your PCB layout, the general layout for the STK413 series follows this logic: Channel 1 Input/Feedback. Central Pins: Positive and Negative Power Supply ( +Vccpositive cap V sub c c end-sub −Vccnegative cap V sub c c end-sub ) and Ground. Outer Pins: Channel Outputs and Standby/Mute controls. Building & Repair Tips

Here's a sample circuit diagram:

substrate temperature), which allows for slightly smaller heat sinks compared to older models. STK413-430 SANYO HYB-22 Modules - Veswin Electronics

The 1µH inductor in series with the output isolates cable capacitance from the amplifier's feedback loop.