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Product Detailed Parameters
- Description：RF TRANS NPN 20V 600MHZ TO-92-3
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Transistor Type：NPN
- Voltage - Collector Emitter Breakdown (Max)：20V
- Frequency - Transition：600MHz
- Noise Figure (dB Typ @ f)：3dB ~ 5dB @ 100MHz
- Gain：-
- Power - Max：250mW
- DC Current Gain (hFE) (Min) @ Ic, Vce：120 @ 1mA, 6V
- Current - Collector (Ic) (Max)：20mA
- Operating Temperature：150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The KSC1674YTA is a single NPN silicon epitaxial planar transistor manufactured by Fairchild Semiconductor. It is designed for high-frequency amplifier applications and operates within the Very High Frequency (VHF) band. The device is housed in a TO-92 cylindrical plastic package with three terminals. Key electrical specifications include a maximum collector current of 0.02 A, a collector-emitter breakdown voltage of 20 V, and a minimum DC current gain (hFE) of 70. The component supports a maximum operating temperature of 150 °C and has a power dissipation rating of 0.25 W.
Feature Summary
- Optimized for high-frequency signal amplification in VHF bands
- Utilizes silicon epitaxial planar construction for reliability
- Provides standardized through-hole mounting via TO-92 package
Applications
- High-frequency RF amplifier circuits
- VHF signal processing stages
- General-purpose switching applications requiring low current
Procurement Notes
Verify the specific suffix 'YTA' against official Fairchild documentation to confirm tape-and-reel packaging or binning variations. Ensure compliance with RoHS directives as indicated by the e3 terminal finish code. Cross-reference datasheets from authorized distributors to validate current manufacturing status and lead times.
Selection Notes
Select this component when a small-signal NPN transistor with a 20V collector-emitter voltage rating is required for VHF frequency operations. Consider the 0.02A continuous current limit and 0.25W thermal dissipation capability during circuit design. The TO-92 package dictates specific PCB footprint requirements compared to surface-mount alternatives.
Part Context
This part belongs to the KSC1674 series of NPN transistors produced by Fairchild Semiconductor. The series is characterized by its suitability for high-frequency applications. The YTA suffix typically denotes specific packaging or shipping configurations within the manufacturer's product line.
Replacement Considerations
Direct substitutes must match the NPN polarity, 20V Vceo rating, and VHF frequency classification. Verify pinout compatibility for the TO-92 package. Consult manufacturer cross-reference guides for equivalent parts with identical hFE ranges and thermal characteristics.
