KSD471ACGBU

Single Bipolar Transistors Overview

The KSD471ACGBU is an NPN epitaxial silicon bipolar junction transistor (BJT) manufactured by Fairchild Semiconductor. It features a collector-emitter voltage (VCEO) of 30 V, a collector-base voltage (VCBO) of 40 V, and an emitter-base voltage (VEBO) of 5 V. The device supports a maximum DC collector current of 1 A with a power dissipation of 800 mW. Key electrical characteristics include a gain-bandwidth product (fT) of 130 MHz, a DC current gain (hFE) range of 120 to 400, and a collector-emitter saturation voltage of 500 mV. It operates at temperatures up to +150°C.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon construction for reliable switching and amplification
• High collector current capability of 1 A in a compact package
• Wide operating temperature range extending to +150°C

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Amplifier stages requiring moderate current drive
• Low-voltage logic interface applications

Single Bipolar Transistors Procurement Notes

Verify component authenticity due to discontinued status and potential obsolescence. Confirm manufacturer documentation aligns with the specific suffix requirements. Check for equivalent replacements from onsemi or other authorized sources if original stock is unavailable. Ensure compliance with RoHS directives as specified in official datasheets.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring 30 V blocking voltage and 1 A continuous current handling. Consider the TO-92-3 package constraints for thermal management. Evaluate the hFE range of 120 to 400 for biasing stability. Compare against modern equivalents if long-term supply assurance is critical.

Single Bipolar Transistors Part Context

This part belongs to the KSD471A series of small-signal NPN transistors. It is functionally related to variants like KSD471ACYBU and KSD471ACGBU, sharing core electrical specifications. The component represents a legacy offering from Fairchild Semiconductor, now often associated with onsemi after corporate acquisitions.

Single Bipolar Transistors Replacement Considerations

Direct substitutes may include KSD471ACYBU or KSD471ACGBU from onsemi/Fairchild. Verify pinout compatibility and thermal characteristics when cross-referencing.