BC856BT,115

Overview

The BC856BT,115 is a PNP general-purpose small-signal transistor manufactured by NXP USA Inc. It operates with a maximum collector current of 0.1 A and a collector-emitter voltage rating of 65 V. The device utilizes the SOT-323 (SC-70) surface-mount package, featuring three terminals in a plastic epoxy body. It exhibits a minimum DC current gain (hFE) of 125 and a transition frequency of 150 MHz. The component supports a maximum operating temperature of 150 °C and complies with RoHS standards.

Feature Summary

• PNP bipolar junction transistor configured for general-purpose small-signal applications
• High-speed operation capability supported by a 150 MHz transition frequency
• Compact SOT-323 surface-mount packaging designed for automated assembly processes

Applications

• General-purpose switching circuits
• Small-signal amplification stages
• Logic interface buffering

Procurement Notes

Verify the specific suffix 'BT' against official NXP documentation to confirm binning or gain classification differences compared to standard variants like 'W'. Ensure the ordering code matches the required tape-and-reel quantity specifications. Confirm that the SOT-323 package dimensions align with the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a compact PNP transistor is required for low-power signal processing. The 65 V breakdown voltage provides adequate headroom for standard logic levels. The 150 MHz transition frequency ensures suitability for moderate-speed switching tasks. Verify thermal management needs relative to the 200 mW power dissipation limit in the SOT-323 package.

Part Context

This part belongs to the BC856 series of PNP transistors from NXP. The series is widely used in consumer electronics and industrial control systems due to its balance of performance and size. The 'BT' suffix typically denotes a specific gain binning or manufacturing lot variation within the broader BC856 family, sharing core electrical characteristics with other variants.

Replacement Considerations

Direct substitutes include BC856B,115 and BC856W,115 from Nexperia/NXP. Verify pinout compatibility and ensure the replacement part meets the same 65 V and 100 mA ratings. Check if the alternative variant offers identical hFE binning requirements for the specific circuit design.