BC857BT116

Overview

The BC857BT116 is a PNP small signal surface mount transistor manufactured by ROHM Semiconductor. It utilizes epitaxial die construction and is housed in an ultra-small SOT-23 (TO-236AB) plastic package with three terminals. The device is designed for switching and audio frequency amplifier applications, featuring a collector-emitter breakdown voltage of 45 V and a continuous collector current rating of 100 mA. It is lead-free and RoHS compliant.

Feature Summary

• Epitaxial die construction optimized for switching and AF amplifier applications
• Ultra-small surface mount package design for space-constrained PCB layouts
• Lead-free finish and fully RoHS compliant manufacturing process

Applications

• General purpose amplification circuits
• High-speed switching applications
• Audio frequency amplifier stages

Procurement Notes

Verify the specific suffix 'T116' against official ROHM documentation to confirm tape-and-reel packaging specifications and binning grades. Ensure compatibility with standard SOT-23 footprint designs. Confirm that the component meets required environmental standards for the target assembly process.

Selection Notes

Select this component for low-power PNP switching or linear amplification tasks requiring minimal board space. Compare hFE gain ranges against circuit requirements. Verify thermal dissipation limits within the SOT-23 package constraints for the intended operating temperature range.

Part Context

This part belongs to the BC857 series of PNP transistors, which are widely used as complementary pairs to NPN types like the BC847. The BC857 series is characterized by high reliability and consistent electrical performance in general-purpose electronic circuits.

Replacement Considerations

Officially documented complementary parts include the BC847B series. Verify pinout compatibility and electrical parameter equivalence before substitution.