STK433-270-E

Overview

The STK433-270-E is a four-channel Class-AB audio frequency power amplifier hybrid IC manufactured by Sanyo Semicon Device, now part of onsemi. Designed for high-power consumer applications, this component delivers an output power of 80W per channel into a recommended 6Ω load. It features a miniature package and supports pin-to-pin compatibility with other models in the series ranging from 40W to 150W. The device allows for the use of predesigned standby and mute circuits and permits a maximum load shorted time of 0.3 seconds.

Feature Summary

• Four-channel Class-AB audio power amplification architecture
• Pin-to-pin compatible outputs within the STK433 series
• Miniature package design for space-constrained applications
• Supports predesigned standby and mute circuit integration

Applications

• Audio power amplifiers
• Consumer electronic audio systems
• High-power multi-channel sound reproduction units

Procurement Notes

Verify the manufacturer designation carefully, as the component was originally produced by Sanyo Semicon Device before acquisition by onsemi. Confirm the specific ordering suffix and revision level against official datasheets to ensure compatibility with existing designs. Cross-reference technical specifications with current product documentation to validate performance parameters and operational limits.

Selection Notes

Select this model when a four-channel configuration is required for high-power audio applications. Consider the STK433 series alternatives if different channel counts or power levels are needed, as they share pin-to-pin compatibility. Ensure the application design accommodates the recommended operating voltage and thermal requirements specified for the 80W per channel output capability.

Part Context

This component belongs to the STK433 series of thick film hybrid ICs designed for audio frequency power amplification. The series includes various models offering different power outputs and channel configurations, such as two-channel variants like the STK433-040N-E and higher power options like the STK433-130N-E. These devices are characterized by their compact size and versatility in consumer audio equipment.

Replacement Considerations

The STK433-040N-E, STK433-060N-E, and STK433-130N-E are listed as series models with pin-to-pin compatibility. Verify electrical ratings and thermal characteristics when substituting between these variants to ensure system integrity.