BCY79-X PBFREE

Overview

The BCY79-X PBFREE is a general-purpose small signal NPN silicon transistor manufactured by Central Semiconductor Corp. It utilizes a TO-18 metal can package and is designed for low-power amplification and switching applications. The device features a collector-emitter voltage rating of 45V, a maximum collector current of 200mA, and a power dissipation capacity of 1W. It operates within a temperature range of -65°C to +200°C.

Feature Summary

• General-purpose small signal amplification
• Metal can construction for thermal stability
• High junction temperature capability

Applications

• Low-noise audio pre-amplifiers
• General purpose switching circuits
• Small signal amplification stages

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and binning. Ensure that the procurement channel provides valid RoHS compliance certificates. Confirm that the component matches the intended lead configuration and metallurgical specifications required for the application environment.

Selection Notes

Select this component when a robust metal-can NPN transistor is required for high-temperature environments. Consider its 1W power dissipation and 200mA current handling capabilities relative to circuit demands. Evaluate the TO-18 package constraints against available board space and mounting requirements compared to plastic alternatives.

Part Context

This part belongs to the BCY series of small signal transistors produced by Central Semiconductor. These components are characterized by their reliability in harsh conditions due to the hermetic metal seal. The series serves as a legacy option for designs requiring proven silicon performance in compact form factors.

Replacement Considerations

Consult official substitution guides for equivalent NPN transistors with matching voltage and current ratings. Verify pinout compatibility before replacing existing assemblies.