2SB1223

Single Bipolar Transistors Overview

The onsemi 2SB1223 is a PNP bipolar junction transistor (BJT) designed for high-current switching applications. It features a collector-emitter voltage rating of 50 V and a continuous collector current capacity of 2 A. The device utilizes an ultraminiature PCP surface-mount package to facilitate higher-density mounting on printed circuit boards. Key electrical characteristics include low collector-to-emitter saturation voltage and fast switching speed, achieved through the adoption of FBET and MBIT processes.

Single Bipolar Transistors Feature Summary

• Low collector-to-emitter saturation voltage for efficient power handling
• Fast switching speed suitable for high-frequency operations
• Ultraminiature package design enabling high-density board mounting

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm exact binning or tape-and-reel specifications. Ensure the component matches the required PCP package dimensions and lead configuration for your PCB footprint. Confirm RoHS compliance status if restricted substances are a constraint for your assembly process.

Single Bipolar Transistors Selection Notes

Select this component when a compact PNP transistor with 50 V blocking capability and 2 A current handling is required. The low saturation voltage makes it suitable for applications where minimizing power loss in the switch is critical. Consider the thermal performance of the PCP package relative to the expected ambient temperature and duty cycle of the load.

Single Bipolar Transistors Part Context

This device belongs to a family of single PNP/NPN bipolar transistors from onsemi engineered for general-purpose switching. These components share common design philosophies focusing on miniaturization and efficiency. They are widely used in consumer electronics and industrial control systems where space constraints and switching performance are primary design drivers.

Single Bipolar Transistors Replacement Considerations

Check for direct cross-reference part numbers such as the 2SD1623 (NPN counterpart) or other 50V/2A PNP transistors in similar packages. Verify pinout compatibility and saturation voltage curves before substituting to ensure circuit stability.