BCY79-VII PBFREE

Overview

The BCY79-VII PBFREE is a PNP silicon small-signal bipolar junction transistor manufactured by Central Semiconductor Corp. It utilizes a TO-18 metal can package with three leads for through-hole mounting. The device supports a maximum collector-emitter voltage of 45V and a continuous collector current of 100mA. Key electrical characteristics include a collector-base breakdown voltage of 45V, an emitter-base breakdown voltage of 5V, and a transition frequency of 100MHz. Power dissipation is rated at 340mW, with a maximum operating temperature of +200°C.

Feature Summary

• Utilizes a hermetically sealed TO-18 metal can package designed for high reliability in harsh environments.
• Capable of operation up to a maximum junction temperature of +200°C for extended thermal endurance.
• Features a transition frequency of 100MHz suitable for general-purpose switching and amplification applications.

Applications

• General-purpose low-power switching circuits
• Small-signal amplification stages
• High-temperature electronic assemblies

Procurement Notes

Verify the specific suffix VII against official datasheets to confirm parameter tolerances and testing standards. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as legacy variants may differ. Ensure the TO-18 package dimensions match the target PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when a PNP configuration is required within a robust metal can package. The 100mA current rating and 45V voltage limits define its operational envelope. Consider the 200°C thermal capability if the application environment exceeds standard commercial temperature ranges. Verify that the transition frequency meets the signal processing requirements.

Part Context

This part belongs to the BCY series of small-signal transistors produced by Central Semiconductor. The series includes complementary NPN and PNP variants such as the BCY59. These components are characterized by their use of silicon planar technology and durable metal packaging, distinguishing them from plastic-packaged equivalents.

Replacement Considerations

Public confirmed substitute part numbers were not identified in available documentation. Cross-reference with other manufacturers offering TO-18 PNP transistors with matching 45V/100mA ratings only after verifying pinout compatibility and electrical specifications.