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Product Detailed Parameters
- Description：RF TRANS NPN 15V 9GHZ CMPAK-4
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Voltage - Collector Emitter Breakdown (Max)：15V
- Frequency - Transition：9GHz
- Noise Figure (dB Typ @ f)：1.3dB ~ 2.4dB @ 900MHz
- Gain：-
- Power - Max：500mW
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 40mA, 8V
- Current - Collector (Ic) (Max)：120mA
- Operating Temperature：175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-82A, SOT-343
- Supplier Device Package：CMPAK-4
- Grade：-
- Qualification：-
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Overview
The BFG540W/X,115 is an NPN silicon planar epitaxial transistor designed for wideband applications in the GHz range. It features a transition frequency of 9 GHz and a maximum unilateral power gain of 16 dB at 900 MHz. The device operates with a collector-emitter voltage of 15 V and supports a DC collector current up to 120 mA. Total power dissipation reaches 500 mW at a case temperature of 85 °C. Packaged in a 4-pin SOT343R plastic housing, it utilizes gold metallization for reliability.
Feature Summary
- High power gain suitable for broadband amplification
- Low noise figure optimized for sensitive RF front ends
- High transition frequency enabling operation up to 9 GHz
- Gold metallization ensures excellent long-term reliability
Applications
- Analog and digital cellular telephones
- Cordless telephones (CT2, CT3, PCN, DECT)
- Satellite television tuners (SATV)
- MATV/CATV amplifiers and repeater amplifiers in fibre-optic systems
Procurement Notes
Verify the specific ordering suffix
Selection Notes
Select this component for high-frequency wideband designs requiring low noise and high gain. Ensure the circuit layout accommodates the SOT343R package dimensions and thermal requirements. Verify that the operating conditions remain within the absolute maximum ratings, particularly regarding junction temperature and power dissipation limits.
Part Context
This part belongs to the BFG540W family of NPN wideband transistors manufactured by NXP Semiconductors. The series includes variants such as BFG540W and BFG540W/XR, all sharing similar electrical characteristics but differing in packaging or pinning configurations. These devices are engineered for robust performance in GHz-range communication systems.
Replacement Considerations
Consult the manufacturer's cross-reference documentation for verified substitutes. Potential alternatives within the same product family include BFG540W and BFG540W/XR. Ensure any replacement matches the required package type and pin configuration before integration.
