KSC2755OMTF

Overview

The KSC2755OMTF is an NPN epitaxial silicon transistor manufactured by onsemi, housed in a SOT-23 surface-mount package. It features a maximum collector-emitter voltage of 30 V and a collector current rating of 20 mA with a power dissipation of 150 mW. Designed for RF applications, it offers a typical noise figure of 2.0 dB and a power gain of 23 dB at 200 MHz. The device supports forward AGC capability up to 30 dB and includes hFE classifications (R, O, Y) ranging from 60 to 240.

Feature Summary

• Optimized for low noise figure and high power gain in VHF and TV tuner circuits
• Supports forward automatic gain control (AGC) functionality
• Available in multiple DC current gain (hFE) grades for precise selection

Applications

• VHF amplifier stages
• TV tuner front-end circuits
• Low-noise RF amplification

Procurement Notes

Verify the manufacturer origin carefully, as the datasheet indicates Fairchild Semiconductor copyright while the brand is listed as onsemi. Confirm the specific ordering suffix matches the required hFE grade classification. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability for RF circuit designs.

Selection Notes

Select this component when designing VHF or TV tuner circuits requiring low noise figures around 2.0 dB. Consider the available hFE grades (R, O, Y) to match specific gain requirements. Verify that the 30 V voltage rating and 20 mA current limits align with the system's operating conditions.

Part Context

This part belongs to the KSC2755 series of NPN RF transistors. It is designed specifically for high-frequency applications where low noise and stable gain are critical. The SOT-23 package allows for compact PCB layouts suitable for consumer electronics and communication devices.

Replacement Considerations

Check for direct equivalents from other manufacturers offering similar RF performance metrics. Verify pinout compatibility and thermal characteristics before substitution.