Transistors - FETs, MOSFETs - RF

Image Part Number Description / PDF Quantity Rfq
BLC9G20LS-120VY

BLC9G20LS-120VY

Ampleon

RF FET LDMOS 65V 19.2DB SOT12753

104

BLF8G27LS-100J

BLF8G27LS-100J

Ampleon

RF FET LDMOS 65V 17DB SOT502B

100

BLF8G22LS-270U

BLF8G22LS-270U

Ampleon

RF FET LDMOS 65V 17.7DB SOT502B

34

BLP0427M9S20Z

BLP0427M9S20Z

Ampleon

BLP0427M9S20Z/SOT1482/REELDP

3

BLA9H0912L-700GU

BLA9H0912L-700GU

Ampleon

BLA9H0912L-700G/SOT502/TRAY

8

BLF884PS,112

BLF884PS,112

Ampleon

RF FET LDMOS 104V 21DB SOT1121B

43

BLM8D1822S-50PBGY

BLM8D1822S-50PBGY

Ampleon

RF MOSFET LDMOS 28V 16-HSOP

0

BLC10G18XS-360AVTZ

BLC10G18XS-360AVTZ

Ampleon

BLC10G18XS-360AV/SOT1258/TRAYD

56

BLC2425M9LS250Z

BLC2425M9LS250Z

Ampleon

RF FET LDMOS 65V 18.5DB SOT12701

347

BLF7G24L-100,112

BLF7G24L-100,112

Ampleon

RF FET LDMOS 65V 18DB SOT502A

0

CLF1G0060-30U

CLF1G0060-30U

Ampleon

RF FET HEMT 150V 13DB SOT1227A

32

BLF574,112

BLF574,112

Ampleon

RF FET LDMOS 110V 26.5DB SOT539A

0

BLF2425M9LS140J

BLF2425M9LS140J

Ampleon

TRANS RF 140W LDMOST

0

BLP10H610Z

BLP10H610Z

Ampleon

RF FET LDMOS 104V 22DB 12VDFN

0

BLF2324M8LS200PU

BLF2324M8LS200PU

Ampleon

RF FET LDMOS 65V 17.2DB SOT539B

55

BLS9G2735LS-50U

BLS9G2735LS-50U

Ampleon

RF MOSFET LDMOS SOT1135B

14

BLF6G38LS-50,112

BLF6G38LS-50,112

Ampleon

RF FET LDMOS 65V 14DB SOT502B

80

BLP8G05S-200GY

BLP8G05S-200GY

Ampleon

RF FET LDMOS 65V 21DB SOT12042

79

BLC8G27LS-60AVY

BLC8G27LS-60AVY

Ampleon

TRANS RF 60W LDMOS DFM6F

0

BLF8G10LS-160,118

BLF8G10LS-160,118

Ampleon

RF FET LDMOS 65V 19.7DB SOT502B

95

Transistors - FETs, MOSFETs - RF

1. Overview

RF FETs and MOSFETs are critical semiconductor devices designed for high-frequency signal amplification and switching in radio frequency (RF) applications. These transistors operate efficiently in microwave and RF circuits, enabling wireless communication, radar systems, and broadcasting equipment. Their ability to handle high frequencies (typically above 1 MHz) with minimal noise and distortion makes them indispensable in modern telecommunications infrastructure.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Junction FET (JFET)Voltage-controlled device with low noise and high input impedanceLow-noise amplifiers in RF receivers
MESFETMetal-Semiconductor FET with GaAs substrate for high-speed operationSatellite communication systems
HEMT/PHEMTHigh-electron-mobility transistor with pseudomorphic structures5G base stations, microwave amplifiers
LDMOSLateral Diffused MOSFET with high power density and thermal stabilityCellular base station amplifiers
GaN HEMTGallium Nitride-based HEMT for ultra-high frequency/powerRadar systems, 5G mmWave

3. Structure and Composition

RF FETs typically feature a three-terminal structure (source, gate, drain) with a semiconductor channel (Si, GaAs, or GaN). The gate region uses Schottky contacts (MESFET) or insulated layers (MOSFET). Advanced devices like HEMTs employ heterojunctions between different semiconductor materials (e.g., AlGaN/GaN) to enhance electron mobility. Packaging includes ceramic or plastic enclosures with RF-compatible connectors to minimize parasitic capacitance and inductance.

4. Key Technical Specifications

ParameterDescriptionImportance
Frequency RangeOperational bandwidth (e.g., 0.1-6 GHz)Determines application suitability
Power Output (P1dB)1dB compression point (e.g., 10-500W)Measures linearity and saturation
Gain (S21)Signal amplification ratio (e.g., 10-30 dB)System sensitivity indicator
Efficiency (PAE)Power-added efficiency (e.g., 40-75%)Energy consumption metric
Input/Output VSWRVoltage Standing Wave Ratio (e.g., <2:1)Mismatch loss assessment

5. Application Fields

  • Telecommunications: 5G/4G base stations, small cells, fiber-optic networks
  • Defense: Radar systems, electronic warfare, UAV communication
  • Broadcasting: FM/TV transmitters, satellite uplinks
  • Medical: MRI machines, RF ablation equipment
  • Industrial: Plasma generators, RFID readers

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Specifications
NXP SemiconductorsMRF1K50GN50W GaN HEMT, 1.8-2.7GHz, 70% PAE
Wolfspeed (Cree)CGH4G090400F400W GaN HEMT, 900MHz, 10:1 VSWR ruggedness
InfineonBLS14H10LS-250250W LDMOS, 1.8-2.2GHz, 14dB gain
MACOMNPT1007SiGe HBT, 7GHz, 18dB gain for 5G

7. Selection Recommendations

  1. Match operating frequency to device transition frequency (fT)
  2. Verify power handling with derating curves under working temperatures
  3. Assess package thermal resistance (Rth) for longevity
  4. Compare S-parameters for impedance matching requirements
  5. Consider ESD protection and ruggedness for field conditions

8. Industry Trends

Key trends include: - Wide bandgap materials (GaN/SiC) enabling higher efficiency (>80%) at mmWave frequencies - 3D packaging for reduced parasitics in 5G massive MIMO systems - Integrated RF frontend modules (FEM) with on-chip matching networks - AI-driven design optimization for complex impedance matching - Growing adoption of GaN-on-diamond substrates for thermal management

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