KSC1674COTA

Overview

The KSC1674COTA is an NPN epitaxial planar silicon transistor manufactured by onsemi, designed for radio frequency applications. It operates within a collector-emitter voltage range of up to 20 V and supports a continuous collector current of 20 mA. The device features a minimum DC current gain (hFE) of 70 and functions at frequencies up to 300 MHz. Power dissipation is rated at 250 mW, with an operating temperature range spanning from -55 °C to +150 °C. It utilizes a TO-92 through-hole package configuration.

Feature Summary

• NPN epitaxial planar silicon construction optimized for RF performance
• Capable of operation in very high frequency bands
• Through-hole mounting via TO-92 package

Applications

• RF amplifier circuits
• High-frequency switching applications
• General-purpose small-signal amplification

Procurement Notes

Verify the specific suffix 'COTA' against official manufacturer documentation to confirm exact binning or testing criteria, as suffixes can denote specific electrical parameter ranges or packaging variations. Ensure compatibility with existing PCB footprints for the TO-92 form factor during component sourcing and verification processes.

Selection Notes

Select this component when an NPN RF transistor with a 20 V collector-emitter rating and 20 mA current capacity is required. Consider the 250 mW power dissipation limit and the -55 °C to +150 °C operating temperature range to ensure suitability for the intended thermal environment and signal frequency requirements.

Part Context

This part belongs to the KSC167x series of RF bipolar transistors. It shares similar structural characteristics with related models like the KSC1675, differing primarily in specific voltage ratings and current handling capabilities. The series is engineered for compact RF designs requiring reliable small-signal performance in standard through-hole packages.

Replacement Considerations

The KSC1674OTA is listed as a functional equivalent with identical electrical specifications including 20 V VCEO and 20 mA IC. Verify pinout compatibility and package dimensions before substitution.