2SB1205S-TL-E

Single Bipolar Transistors Overview

The onsemi 2SB1205S-TL-E is a PNP bipolar junction transistor (BJT) designed for high-current switching applications. It features a maximum DC collector current of 5 A and a collector-emitter voltage rating of 50 V. The device utilizes the TP-FA surface-mount package, which supports a maximum power dissipation of 1 W. Key electrical characteristics include a transition frequency of 120 MHz and a low collector-to-emitter saturation voltage. The component is rated for operation at junction temperatures up to +150 °C.

Single Bipolar Transistors Feature Summary

• High current handling capability with a 5 A maximum DC collector current rating
• Low collector-to-emitter saturation voltage for efficient switching performance
• Fast switching speed supported by a 120 MHz transition frequency
• Compact TP-FA surface-mount package design

Single Bipolar Transistors Applications

• Relay drivers
• High-speed inverters
• Converters and general high-current switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official onsemi documentation to confirm exact packaging and tape-and-reel specifications. Ensure the requested part number matches the required thermal and electrical ratings for the target circuit design. Cross-reference datasheet revisions to confirm compliance with current environmental standards such as RoHS and REACH requirements before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component for circuits requiring robust PNP switching with moderate voltage ratings. The TP-FA package offers a balance of thermal performance and board space efficiency. Compare the 50 V breakdown voltage and 5 A current limits against peak load conditions. Consider the 1 W power dissipation limit when designing heat management strategies for continuous operation in dense layouts.

Single Bipolar Transistors Part Context

This device belongs to the 2SB1203/2SD1803 family of bipolar transistors from onsemi. The series is engineered for applications demanding high current density and fast switching speeds within a slim form factor. The 2SB1205S-TL-E variant specifically provides the PNP configuration with optimized saturation characteristics for use in power conversion and driver stages.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers: 2SB1412TLR.