KSC1674RTA

Overview

The KSC1674RTA is an NPN bipolar junction transistor manufactured by onsemi, formerly Fairchild Semiconductor. It is housed in a TO-92 plastic package and designed for high-frequency applications within the very high frequency band. The device supports a maximum collector current of 0.02 A and a collector-emitter voltage of 20 V. It features a minimum DC current gain (hFE) of 70 and operates at a maximum junction temperature of 150 °C. The component is RoHS compliant and lead-free.

Feature Summary

• Optimized for operation in the very high frequency band
• Single NPN configuration with low power dissipation
• RoHS compliant and lead-free construction

Applications

• High-frequency amplification circuits
• RF signal processing stages
• General-purpose switching applications

Procurement Notes

Verify the specific suffix 'RTA' against official datasheets to confirm tape-and-reel packaging details. Ensure compatibility with RoHS directives if required by the target assembly process. Cross-reference the manufacturer history between Fairchild and onsemi for accurate documentation access.

Selection Notes

Select this component when a small-signal NPN transistor with a 20V rating and 20mA current limit is required for high-frequency use. Compare hFE minimums against circuit requirements. Consider thermal limits given the 0.25W power dissipation capability in the TO-92 package.

Part Context

This part belongs to the discrete semiconductor transistor category. It is historically associated with Fairchild Semiconductor before the company's rebranding to onsemi. The TO-92 package is a standard through-hole form factor widely used in consumer electronics and industrial control boards.

Replacement Considerations

Consult official substitution guides for equivalent NPN transistors with matching 20V/20mA ratings and TO-92 packaging. Verify frequency characteristics and hFE ranges match original design specifications.