BC238ATFR

Single Bipolar Transistors Overview

The BC238ATFR is an NPN epitaxial planar silicon transistor manufactured by onsemi. It features a maximum collector-emitter voltage of 25 V and a continuous collector current rating of 100 mA. The device operates with a transition frequency of 250 MHz and supports a maximum power dissipation of 500 mW. It utilizes a TO-92-3 surface-mount package and maintains a junction temperature capability up to 150°C.

Single Bipolar Transistors Feature Summary

• Epitaxial planar construction for stable performance
• Low noise characteristics suitable for signal amplification
• High transition frequency for RF applications

Single Bipolar Transistors Applications

• General purpose switching
• Low noise amplifier circuits
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix ATFR against the official onsemi datasheet to confirm tape-and-reel packaging and binning specifications. Ensure the component matches the required RoHS compliance status and lead frame material updates documented in recent product change notices.

Single Bipolar Transistors Selection Notes

Select this component when a small-signal NPN transistor with low noise properties is required. Compare the DC current gain (hFE) bins against circuit requirements. Verify that the TO-92-3 footprint aligns with the PCB design constraints compared to through-hole alternatives.

Single Bipolar Transistors Part Context

This part belongs to the BC237/BC238/BC239 series of general-purpose transistors. The BC238 variant specifically provides NPN configuration, distinguishing it from the PNP BC237 and high-voltage BC239. It serves as a standard solution for low-power analog and digital switching tasks.

Single Bipolar Transistors Replacement Considerations

Cross-reference with BC238BU or BC238TAR for pin-compatible alternatives. Verify electrical parameter equivalence before substitution.