2SB1229S-AA

Single Bipolar Transistors Overview

The onsemi 2SB1229S-AA is a PNP silicon small signal transistor housed in a TO-92 package. It supports a maximum collector current of 2 A and a collector-emitter voltage of 50 V. The device features a minimum DC current gain (hFE) of 140 and operates at temperatures up to 150 °C with a power dissipation rating of 0.75 W.

Single Bipolar Transistors Feature Summary

• PNP epitaxial planar silicon construction for reliable switching performance
• High current handling capability suitable for general-purpose applications
• Low saturation voltage characteristics for efficient operation

Single Bipolar Transistors Applications

• Relay driver circuits
• High-speed inverters
• DC-DC converters

Single Bipolar Transistors Procurement Notes

Verify the specific suffix AA against official documentation to confirm pinout and electrical tolerances, as variations exist within the 2SB1229 series. Ensure the component matches the required TO-92 form factor and PNP polarity for your design. Cross-reference datasheets from authorized distributors to confirm RoHS compliance and lead-free status before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when a robust PNP switch is needed for moderate current loads up to 2 A. The TO-92 package offers a cost-effective solution for through-hole designs. Consider the 50 V breakdown voltage and thermal limits to ensure adequate headroom for your specific circuit requirements and operating environment.

Single Bipolar Transistors Part Context

This part belongs to the broader category of small signal transistors used in discrete semiconductor applications. It serves as a fundamental switching element in electronic circuits, often paired with NPN counterparts like the 2SD1235 for complementary push-pull configurations in audio or power management stages.

Single Bipolar Transistors Replacement Considerations

• 2SB1229S