2SB1201S-E

Single Bipolar Transistors Overview

The onsemi 2SB1201S-E is a single PNP bipolar junction transistor (BJT) designed for surface-mount applications. It features a maximum collector current of 2 A and a collector-emitter breakdown voltage of 50 V. The device utilizes the TP-FA package, which corresponds to the TO-252-3 form factor with an exposed thermal pad. Key electrical characteristics include a transition frequency of 150 MHz and a minimum DC current gain of 140 at 100 mA and 2 V. The component supports a maximum operating junction temperature of 150°C and has a power dissipation rating of 800 mW.

Single Bipolar Transistors Feature Summary

• High-speed switching capability supported by a 150 MHz transition frequency
• Low saturation voltage design for efficient power handling in switching circuits
• Robust current handling with a 2 A continuous collector current rating
• Surface-mount construction in a slim TP-FA package for compact board layouts

Single Bipolar Transistors Applications

• Relay driver circuits requiring high-current switching
• High-speed inverters and converter topologies
• General-purpose high-current switching applications

Single Bipolar Transistors Procurement Notes

Verify end-of-life status before finalizing designs, as this component may be subject to discontinuation. Confirm RoHS compliance and REACH material declarations through official datasheets or manufacturer documentation prior to procurement. Ensure that the specific ordering suffix matches the required packaging configuration, as variations may exist between bulk and tape-and-reel formats.

Single Bipolar Transistors Selection Notes

Select this component for applications demanding a PNP transistor with moderate voltage ratings and high current capacity in a surface-mount footprint. Consider the 50 V collector-emitter voltage limit when designing for higher voltage environments. Evaluate the thermal performance of the TP-FA package to ensure adequate heat dissipation for the 800 mW power dissipation rating under expected operating conditions.

Single Bipolar Transistors Part Context

The 2SB1201S-E belongs to the 2SB1201 series of general-purpose PNP transistors manufactured by onsemi. This series is engineered for use in consumer electronics and industrial equipment where reliable switching performance and compact packaging are essential. The device represents a standard solution for replacing older through-hole components in modern surface-mount assembly processes.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement part maintains compatible pinout configurations, voltage ratings, and current capabilities to guarantee circuit functionality without redesign.