2SB1731TL

Single Bipolar Transistors Overview

The 2SB1731TL is a single PNP bipolar junction transistor manufactured by ROHM Semiconductor. It utilizes silicon technology and is housed in a TUMT3 (SOT-323T-3) surface-mount package. The device supports a maximum collector-emitter voltage of 30 V and a continuous collector current of -1.5 A. Key electrical parameters include a transition frequency of 280 MHz, a power dissipation rating of 400 mW, and a DC current gain ranging from 270 to 680 at -200 mA and -2 V. The saturation voltage is specified at 370 mV under standard test conditions.

Single Bipolar Transistors Feature Summary

• High DC current gain for efficient signal amplification
• Low saturation voltage for reduced power loss
• Compact SMD footprint for space-constrained designs

Single Bipolar Transistors Applications

• DC-DC converter circuits
• General-purpose switching applications
• Amplifier stages in consumer electronics

Single Bipolar Transistors Procurement Notes

Verify the specific suffix TL against the manufacturer's datasheet to confirm pinout compatibility and thermal characteristics. Ensure the ordering part number matches the required tape-and-reel or cut-tape configuration for your assembly process. Cross-reference the RoHS status and moisture sensitivity level with your project requirements before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when a 30 V PNP transistor is required in a compact SOT-323T-3 package. It serves as an alternative to higher-voltage variants like the 2SB1730 series if lower breakdown voltage is acceptable. Consider the 280 MHz transition frequency for moderate-speed switching needs rather than high-frequency RF applications.

Single Bipolar Transistors Part Context

This component belongs to the 2SB1731 series of PNP transistors designed for general-purpose use. It shares the same physical package dimensions as other members of the family but differs in voltage ratings and current handling capabilities compared to related models such as the 2SB1730 or 2SB1732.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers: None identified.