STK433-840N-E

Overview

The STK433-840N-E is a four-channel Class AB audio power amplifier hybrid integrated circuit manufactured by onsemi. It delivers a maximum output power of 40W per channel into a 6-ohm load. The device utilizes a 23-SIP through-hole package and operates with a recommended supply voltage of ±24V for the specified load condition.

Feature Summary

• Four-channel Class AB audio frequency power amplifier architecture
• Pin-to-pin compatible outputs within the STK433 series family
• Miniature SIP package design for compact integration

Applications

• Audio power amplifiers

Procurement Notes

Verify component status as this part is officially listed as obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors or secondary market suppliers like Rochester Electronics, LLC. Ensure compatibility with existing designs due to potential end-of-life restrictions and verify RoHS compliance documentation before procurement.

Selection Notes

Select this component for applications requiring a four-channel Class AB amplifier solution. Consider the STK433 series variants for pin-compatible alternatives offering different power ratings, such as the STK433-890N-E for higher output requirements. Evaluate the 23-SIP package constraints and thermal management needs relative to the 40W per channel specification at 6 ohms.

Part Context

This component belongs to the STK433 series of audio power amplifier hybrid ICs. The series offers various models with differing power outputs, ranging from lower wattage options up to 150W configurations, all sharing a common footprint and interface structure to facilitate design flexibility across different audio system power levels.