2SC4491-AN

Single Bipolar Transistors Overview

The onsemi 2SC4491-AN is a PNP bipolar junction transistor designed for small signal amplification and switching applications. It features a collector-emitter voltage rating of 60V and a continuous collector current capacity of 1.2A. The device is housed in a 3-NMP (SC-71) through-hole package, suitable for surface or standard mounting configurations. With a power dissipation rating of 1W, it supports efficient thermal management in compact designs. This component is engineered for reliability in consumer electronics and industrial control circuits requiring robust single-transistor performance.

Single Bipolar Transistors Feature Summary

• High-performance PNP bipolar junction transistor optimized for small signal amplification
• Capable of handling significant current loads with a 1.2A continuous collector rating
• Robust voltage tolerance up to 60V for reliable operation in varied circuit conditions
• Compact 3-NMP package design facilitating integration into space-constrained layouts

Single Bipolar Transistors Applications

• Small signal amplification in audio and RF circuits
• Switching applications for motor drivers and relay drivers
• Printer hammer driver circuits
• General-purpose logic level translation

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer datasheet for the 2SC4491-AN to confirm pinout compatibility and absolute maximum ratings before integration. Ensure that the 3-NMP package dimensions align with your PCB footprint requirements. Cross-reference the part number with official onsemi documentation to distinguish between original components and potential substitutes, as availability and lead times vary by distributor.

Single Bipolar Transistors Selection Notes

Select the 2SC4491-AN when a PNP transistor with moderate voltage and current capabilities is required for amplification or switching tasks. Its 60V rating makes it suitable for low-voltage digital systems, while the 1.2A current capacity supports driving small loads like relays or motors. Consider the SC-71 package size if board space is limited but through-hole mounting is preferred over surface-mount alternatives.

Single Bipolar Transistors Part Context

This component belongs to the family of single bipolar transistors manufactured by onsemi. It serves as a discrete solution for circuit designers needing reliable PNP switching elements. The 2SC4491-AN variant specifically utilizes the 3-NMP package, offering a balance between thermal performance and physical footprint compared to larger through-hole options.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.