BCY59-VII PBFREE

Overview

The BCY59-VII PBFREE is an NPN bipolar junction transistor manufactured by Central Semiconductor Corp. It features a collector-base voltage of 45V and an emitter-base voltage of 7.0V. The device supports a maximum continuous collector current of 100mA with a power dissipation rating of 340mW in standard operation, extending to 1W under specific conditions. It utilizes a TO-18 metal can package for through-hole mounting. The component operates within a temperature range of -65°C to +200°C and exhibits a transition frequency of 150MHz.

Feature Summary

• NPN switching transistor configuration designed for low current applications
• Metal case construction providing robust thermal and mechanical stability
• High junction temperature capability suitable for demanding environments

Applications

• General purpose switching circuits
• Low voltage amplification stages
• Discrete transistor logic implementations

Procurement Notes

Verify the active status of this component as it is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or surplus channels. Ensure compliance with RoHS directives if required for the specific assembly process. Check for alternative sourcing options given the discontinued status.

Selection Notes

Select this component for designs requiring a hermetically sealed NPN transistor in a TO-18 package. Consider its 45V collector-base voltage limit and 100mA current capacity for appropriate circuit biasing. Evaluate the high operating temperature range for thermal management requirements in enclosed spaces.

Part Context

This part belongs to the BCY59 series of NPN switching transistors originally specified by Philips Semiconductors. Central Semiconductor produces the Pb-Free variant, maintaining the electrical characteristics of the original specification while adhering to modern environmental standards. It serves as a discrete semiconductor solution for legacy and new designs requiring metal can packaging.

Replacement Considerations

The BCY58-VII PBFREE is a related variant with lower voltage ratings (32V). Verify pinout compatibility and electrical limits when substituting. No direct public substitute part numbers are confirmed for this specific model.