STK404-140N-E

Overview

The STK404-140N-E is a single-channel Class-AB audio power amplifier hybrid IC manufactured by onsemi. It utilizes insulated metal substrate technology (IMST) for miniaturization and features a low thermal resistance substrate to enable compact packaging. The device integrates optimally designed discrete component power amplifier circuits within a miniature package, offering significantly reduced size compared to earlier similar specifications.

Feature Summary

• Integrates discrete component power amplifier circuits into a single hybrid unit
• Employs unique insulated metal substrate technology (IMST) for structural integrity
• Utilizes a newly developed low thermal resistance substrate for efficient heat dissipation
• Achieves significant physical miniaturization relative to prior generation products

Applications

• Audio power amplifier systems
• Mixed integrated circuit designs requiring high power density

Procurement Notes

Verify the specific suffix 'N-E' against official manufacturer documentation to confirm exact pinout, thermal characteristics, and compliance status. Ensure the ordering part number matches the required package variant and that the source document explicitly identifies this suffix as distinct from other series members.

Selection Notes

Select this component when designing audio amplifiers that require a compact form factor with high power output capabilities. The IMST construction and low thermal resistance substrate make it suitable for applications where space constraints are critical while maintaining performance levels comparable to larger discrete solutions.

Part Context

This component belongs to the STK404-000 series of audio power amplifier hybrid ICs. The series is characterized by the use of Sanyo's (now onsemi) proprietary IMST technology. These devices represent an evolution in hybrid IC design, focusing on reducing the physical footprint without compromising the power handling capabilities inherent to thick-film mixed IC architectures.