2SB1123S-TD-E

Single Bipolar Transistors Overview

The onsemi 2SB1123S-TD-E is a PNP bipolar junction transistor designed for surface-mount installation. It features a PCP package with three pins and supports a maximum DC collector current of 2 A. The device withstands a maximum collector-emitter voltage of 50 V and a collector-base voltage of -60 V. Key electrical parameters include a maximum power dissipation of 1.3 W, a transition frequency of 150 MHz, and an operating temperature range from ambient to +150 °C. Physical dimensions are 4.5 x 2.5 x 1.5 mm.

Single Bipolar Transistors Feature Summary

• Utilizes FBET or MBIT process technology for fast switching speed
• Provides low collector-to-emitter saturation voltage for efficient operation
• Offers large current capacity and wide safe operating area (ASO)
• Designed for optimal automated board assembly in compact form factors

Single Bipolar Transistors Applications

• Voltage regulators
• Relay drivers
• Lamp drivers
• General electrical equipment

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'TD-E' against official datasheets to confirm lead-free status and RoHS compliance. Ensure the PCP package footprint matches the target PCB design. Confirm that the 50V rating and 2A current limit align with the circuit requirements. Check for any automotive qualification standards if used in vehicle electronics. Validate thermal management capabilities given the 1.3W dissipation rating.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring high-speed switching and low saturation voltage in a surface-mount format. The PCP package provides a balance between current handling and board space efficiency. Consider the 150 MHz transition frequency for medium-frequency switching tasks. Evaluate the thermal performance within the system enclosure to ensure the junction temperature remains within the +150 °C limit under continuous load conditions.

Single Bipolar Transistors Part Context

This part belongs to the 2SB112x series of PNP transistors from onsemi, which are engineered for general-purpose switching applications. The series emphasizes low VCE(sat) and high current capability. The PCP package variant offers a robust solution for power handling compared to smaller signal packages. It serves as a direct replacement for legacy through-hole devices in modern compact designs.

Single Bipolar Transistors Replacement Considerations

The 2SB1124S is a similar PNP transistor in the same series but rated for 3 A collector current. Verify if the increased current capacity is necessary or if the 2 A rating of the 2SB1123S is sufficient. Both share the PCP package and similar voltage ratings, ensuring pin compatibility.