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Product Detailed Parameters
- Description：RF TRANS NPN 15V 1.1GHZ TO-92-3
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Transistor Type：NPN
- Voltage - Collector Emitter Breakdown (Max)：15V
- Frequency - Transition：1.1GHz
- Noise Figure (dB Typ @ f)：-
- Gain：-
- Power - Max：250mW
- DC Current Gain (hFE) (Min) @ Ic, Vce：120 @ 5mA, 10V
- Current - Collector (Ic) (Max)：50mA
- 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 KSC1730YBU is an NPN epitaxial silicon transistor manufactured by Fairchild Semiconductor, designed for RF small signal applications. It features a maximum collector current of 0.05 A and a collector-emitter voltage rating of 15 V. The device operates in the ultra-high frequency band with a typical transition frequency (fT) suitable for high-frequency amplification. Packaged in a TO-92 cylindrical plastic case with three through-hole terminals, it offers a collector capacitance of 1.5 pF. This single-element component is optimized for low-power analog switching and amplifier circuits requiring reliable performance in compact form factors.
Feature Summary
- Epitaxial silicon construction for stable RF performance
- Optimized for ultra-high frequency band amplification
- Compact TO-92 through-hole package design
Applications
- RF small signal amplification circuits
- Low-level analog switching applications
- Sample and hold circuit implementations
Procurement Notes
Verify part authenticity against official Fairchild Semiconductor documentation due to discontinued status. Confirm package marking matches TO-92 specifications. Check for RoHS compliance records if required. Ensure replacement components meet identical electrical parameters including VCEO and IC ratings. Validate supplier source reliability before acquisition.
Selection Notes
Select this component for designs requiring NPN RF transistors with 15V collector-emitter voltage tolerance. Suitable for ultra-high frequency applications needing 0.05A current handling. Consider TO-92 mounting constraints for PCB layout. Verify thermal resistance requirements for ambient temperature operation. Compare fT specifications against target frequency range needs.
Part Context
The KSC1730 series includes variants like KSC1730OD26Z and KSC1730YTA, all sharing similar NPN epitaxial silicon characteristics. These devices belong to Fairchild's discrete semiconductor transistor lineup focused on RF small signal processing. The YBU suffix typically denotes specific packaging or tape-and-reel configuration within the family.
Replacement Considerations
KSC1730OD26Z and KSC1730YTA are documented related parts within the same product family. Verify pinout compatibility and electrical parameter equivalence before substitution. Cross-reference datasheets for exact fT and capacitance values.
