BC857AMTF

Overview

The BC857AMTF is a PNP silicon small signal transistor manufactured by Fairchild Semiconductor. It features a maximum collector current of 100 mA and a collector-emitter voltage rating of 45 V. The device utilizes an epitaxial die construction and is housed in a SOT-23 surface mount package with three terminals. It is lead-free, RoHS compliant, and qualified to AEC-Q101 standards for high reliability.

Feature Summary

• Epitaxial die construction for robust performance
• Ultra-small surface mount SOT-23 package design
• Qualified to AEC-Q101 automotive standards

Applications

• General purpose amplification
• Switching applications
• Complementary circuits using BC847 series

Procurement Notes

Verify the specific manufacturer documentation for the BC857AMTF to confirm exact electrical characteristics and pinout configurations. Ensure compliance with relevant environmental regulations such as RoHS requirements before integration into final assemblies.

Selection Notes

Select this component when a compact PNP transistor with 100 mA capability is required. The SOT-23 package suits space-constrained designs. Verify that the 45 V voltage rating meets circuit requirements and that the AEC-Q101 qualification aligns with target application standards.

Part Context

This part belongs to the BC857 family of PNP transistors. It serves as a complementary device to the BC847 NPN series. The 'A' suffix typically denotes a specific DC current gain binning category within the product line, distinguishing it from other variants like BC857B or BC857C.

Replacement Considerations

Direct substitutes include BC857AT, BC857BT, and BC857CT from Diodes Incorporated. Other manufacturers offer equivalent PNP small signal transistors in SOT-23 packages with matching 100 mA and 45 V ratings.