KSC1674OBU

Overview

The KSC1674OBU is an NPN silicon epitaxial planar transistor manufactured by Fairchild Semiconductor. It is housed in a TO-92 plastic package with three leads. The device supports a maximum collector current of 0.02 A and a collector-emitter voltage of 20 V. It operates within a junction temperature range up to 150 °C and has a maximum power dissipation of 0.25 W. The component meets RoHS standards and is lead-free.

Feature Summary

• NPN polarity configuration for signal amplification
• Very high frequency band operation capability
• Lead-free construction compliant with environmental standards

Applications

• High-frequency amplifier circuits
• General-purpose switching applications
• Small-signal processing stages

Procurement Notes

Verify the manufacturer source directly against official Fairchild Semiconductor documentation to confirm authenticity. Ensure the part number suffix matches the specific package variant required for your design. Check for RoHS compliance status if environmental regulations apply to your manufacturing process. Confirm lead-free certification details before finalizing procurement decisions.

Selection Notes

Select this component when a small-signal NPN transistor with low collector current requirements is needed. The 20 V breakdown voltage suits low-voltage logic interfaces. Verify that the TO-92 package fits the available board space. Ensure the operating frequency aligns with the very high frequency band specification provided in the datasheet.

Part Context

This transistor belongs to the general-purpose discrete semiconductor category. It serves as a fundamental active component for analog and digital circuit designs requiring low-power amplification or switching functions.

Replacement Considerations

Cross-reference with other NPN transistors in the TO-92 package having similar 20 V and 0.02 A ratings. Verify pinout compatibility and electrical characteristics match before substitution.