2N5321 PBFREE

Overview

The Central Semiconductor Corp 2N5321 PBFREE is an NPN silicon epitaxial planar transistor housed in a TO-39 metal case. It supports a maximum collector current of 2 A and a collector-emitter breakdown voltage of 50 V. The device features a power dissipation rating of 10 W, a transition frequency of 50 MHz, and a minimum DC current gain of 40. Designed for high-voltage medium-power applications, it operates up to a junction temperature of 175 °C with through-hole mounting.

Feature Summary

• Epitaxial planar NPN silicon construction within a JEDEC TO-39 metal case
• High-voltage medium-power switching capability
• Through-hole mounting configuration

Applications

• High-voltage medium-power switching circuits
• General-purpose small signal amplification
• Power switching applications requiring robust thermal performance

Procurement Notes

Verify the specific manufacturer source when ordering, as specifications may vary between Intersil/Renesas, Continental Device India Limited (CDIL), and Central Semiconductor. Confirm RoHS compliance status, noting that some datasheets indicate non-compliance for certain variants. Ensure the package type matches the required TO-39 metal can form factor for proper integration into existing designs.

Selection Notes

Select this component for applications requiring a rugged metal-can NPN transistor with high voltage tolerance. Consider the 50 V collector-emitter breakdown and 2 A current capacity against circuit demands. Evaluate the TO-39 package for thermal management needs, as its metal construction aids heat dissipation compared to plastic alternatives. Verify compatibility with existing PCB layouts designed for through-hole metal cans.

Part Context

The 2N5321 belongs to a family of silicon epitaxial planar transistors, often paired with the 2N5320 and 2N5322/2N5323 series. Manufactured by various vendors including STMicroelectronics and CDIL, these devices share similar structural characteristics but may differ in exact electrical tolerances. The TO-39 metal case provides environmental protection and efficient heat transfer for medium-power operations.

Replacement Considerations

Public confirmed substitute part numbers include 2N5320, 2N5322, and 2N5323 from compatible manufacturers. Verify pinout and electrical parameters match before substitution.