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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：70 @ 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)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The KSC1674COBU is an NPN epitaxial silicon RF bipolar junction transistor manufactured by Fairchild Semiconductor. It operates with a maximum collector-emitter voltage of 20V and a continuous collector current of 20mA. The device features a transition frequency of 600MHz and a maximum power dissipation of 250mW. DC current gain (hFE) is specified at a minimum of 70 when tested at 1mA and 6V. The component utilizes a TO-92-3 through-hole package and supports a maximum junction temperature of 150°C.
Feature Summary
- Designed for high-frequency radio frequency applications utilizing NPN epitaxial silicon technology.
- Provides low noise performance suitable for sensitive signal processing circuits.
- Constructed in a standard TO-92-3 through-hole package for reliable mounting.
Applications
- RF amplifier stages
- High-frequency oscillator circuits
- Signal processing modules
Procurement Notes
Verify the manufacturer part number against official Fairchild Semiconductor documentation to confirm specifications. Check for obsolescence status as the component may be discontinued. Ensure the TO-92-3 package type matches the design requirements. Confirm RoHS compliance details if environmental regulations apply to the specific production batch.
Selection Notes
Select this component for designs requiring an NPN RF transistor with a 600MHz transition frequency. Ensure the circuit operates within the 20V collector-emitter voltage limit and 20mA current constraint. Verify that the thermal management allows for a maximum junction temperature of 150°C. Compare noise figure specifications against other available RF transistors if low-noise performance is critical.
Part Context
This component belongs to the family of RF bipolar transistors produced by Fairchild Semiconductor. It shares the KSC1674 series designation, which typically includes variants with different packaging or testing grades. The COBU suffix indicates the specific TO-92-3 bulk packaging configuration used for distribution.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided data. Consult official Fairchild Semiconductor replacement guides or distributor cross-reference tools for verified alternatives.
