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STK441 from SANYO

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STK441

Manufacturer: SANYO

20W MIN 2 CHANNEL AF POWER AMPLIFIER

Partnumber Manufacturer Quantity Availability
STK441 SANYO 68 In Stock

Description and Introduction

20W MIN 2 CHANNEL AF POWER AMPLIFIER The **STK441** is an integrated circuit (IC) manufactured by **Sanyo (now part of ON Semiconductor)**. It is a **thick-film hybrid IC** designed for **audio amplifier applications**, particularly in **stereo systems**.  

### **Key Specifications:**  
- **Type:** Stereo Audio Power Amplifier IC  
- **Package:** SIP (Single In-line Package)  
- **Output Power:**  
  - **10W per channel (min.) @ 8Ω, 20V supply (THD = 10%)**  
  - **12W per channel (typ.) @ 8Ω, 22V supply**  
- **Supply Voltage Range:** **±12V to ±25V (dual supply)**  
- **Total Harmonic Distortion (THD):** **0.3% (typ.) @ 1kHz, 8Ω, 10W**  
- **Frequency Response:** **20Hz - 50kHz (-3dB)**  
- **Input Impedance:** **~50kΩ**  
- **Built-in Thermal Protection:** Yes  

### **Features:**  
- **Compact design** with minimal external components required  
- **Low noise and distortion** for high-fidelity audio output  
- **Thermal shutdown protection** to prevent overheating  
- **Mute function** for pop-free operation  
- **Designed for stereo amplifiers, car audio, and home audio systems**  

### **Applications:**  
- **Stereo amplifiers**  
- **Car audio systems**  
- **Home theater systems**  
- **Portable audio devices**  

The **STK441** is a reliable and widely used IC in audio amplification due to its **high power efficiency** and **low distortion** characteristics.

Application Scenarios & Design Considerations

20W MIN 2 CHANNEL AF POWER AMPLIFIER

Alternative Part Number

  • STK404-070 --: Same STK thick-film hybrid audio power amplifier family with comparable output power and supply voltage, widely used as a substitute in audio equipment.
  • TDA7294 --: Popular Class-AB audio power amplifier IC with similar power rating and voltage range, commonly used to replace obsolete STK hybrid modules.
  • LM3886 --: Well-known high-power audio amplifier IC offering comparable output power and reliability, a common modern alternative for discontinued STK devices.
  • STK404-130 --: Same Sanyo thick-film hybrid audio power amplifier family with comparable output power and pinout, widely used as a substitute in audio equipment.
  • STK4151II --: Similar hybrid audio power amplifier IC in the STK series with compatible supply voltage and output rating for audio amplifier repairs.
  • LM3886TF --: Modern monolithic Class-AB audio power amplifier offering comparable output power and thermal performance, usable as a functional replacement with minor circuit adaptation.

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