BCX41E6433HTMA1

Overview

The BCX41E6433HTMA1 is an NPN silicon small-signal transistor manufactured by Infineon Technologies. It is housed in a SOT-23 surface-mount package and belongs to the BCX41 series. The device supports a maximum collector current of 800 mA and features a collector-emitter voltage rating of 125 V. Key electrical parameters include a transition frequency of 150 MHz, a power dissipation capacity of 330 mW, and a DC current gain range between 200 and 450. It operates within a temperature range of -65°C to +150°C.

Feature Summary

• High voltage capability with a 125 V collector-emitter breakdown rating suitable for demanding switching applications.
• Robust current handling with a maximum continuous collector current of 800 mA.
• Wide operating temperature range extending up to +150°C junction temperature.

Applications

• General-purpose switching circuits
• Amplifier stages requiring high voltage tolerance
• Industrial control logic interfaces

Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm the specific suffix HTMA1 matches project requirements. Check for end-of-life status as older revisions may be discontinued. Ensure RoHS compliance documentation is available for regulatory adherence. Validate packaging type against assembly line specifications.

Selection Notes

Select this component when a single NPN transistor requires both high voltage blocking (125 V) and moderate current drive (800 mA). The SOT-23 package offers space efficiency for compact designs. Consider the 150 MHz transition frequency for general audio or low-frequency signal processing tasks where higher speed is not critical.

Part Context

This part is a variant within the BCX41 family of NPN transistors. It shares the same core electrical characteristics as other BCX41 devices but utilizes the HTMA1 ordering suffix to denote specific tape-and-reel packaging configurations. It serves as a standard discrete solution for medium-power analog and digital switching needs.

Replacement Considerations

Direct substitutes include BCX41E6327HTSA1 and BCX41E6433XT. Verify pinout compatibility and thermal resistance values before substitution. Ensure replacement parts meet the same 125 V and 800 mA ratings.