LS320 TO-72 4L

Overview

The LS320 TO-72 4L is a monolithic dual NPN transistor manufactured by Linear Integrated Systems. It belongs to the company's family of general-purpose dual transistors designed for integrated circuit applications. The component utilizes a hermetically sealed metal can package, specifically the TO-72 style with four leads, providing robust environmental protection and reliable performance for analog signal processing tasks.

Feature Summary

• Monolithic construction integrating two NPN transistors on a single semiconductor die
• Hermetically sealed metal can packaging for enhanced durability
• General-purpose design suitable for broad analog amplification applications

Applications

• Analog signal amplification circuits
• Integrated circuit building blocks
• General-purpose switching applications

Procurement Notes

Verify the manufacturer designation carefully, as Linear Integrated Systems has undergone corporate changes and asset acquisitions. Confirm that the specific TO-72 4L package variant matches the original Intersil specifications if replacing legacy designs. Ensure the component source is an authorized distributor or verified surplus supplier to avoid counterfeit devices.

Selection Notes

Select this component when a matched pair of NPN transistors is required in a compact, hermetically sealed form factor. Consider the thermal characteristics and pinout compatibility of the TO-72 package during PCB layout. Evaluate the general-purpose nature against specific beta requirements of the target circuit design.

Part Context

This device is part of Linear Integrated Systems' portfolio of dual transistors, which includes variants like the LS310 and LS318. These components often serve as replacements for discontinued parts from manufacturers such as Intersil. The LS320 provides a compact solution for applications requiring two closely matched NPN transistors within a single package.

Replacement Considerations

The LS320 serves as a replacement for the Intersil IT120. Verify pinout compatibility and electrical parameter matching when substituting these components in existing designs.