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Transistors - FETs, MOSFETs - Single

Image Part Number Description / PDF Quantity Rfq
DMN3018SFGQ-13

DMN3018SFGQ-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 30V 8.5A PWRDI3333-8

12000
DMN67D8LW-7

DMN67D8LW-7

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 240MA SOT323

0
DMP4015SSS-13

DMP4015SSS-13

Zetex Semiconductors (Diodes Inc.)

MOSFET P-CH 40V 9.1A 8SO

0
DMN2028UVT-13

DMN2028UVT-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 20V 6.2A TSOT-26

0
DMT35M7LFV-13

DMT35M7LFV-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 30V 76A POWERDI3333

0
DMP3165L-7

DMP3165L-7

Zetex Semiconductors (Diodes Inc.)

MOSFET P-CH 30V 3.3A SOT23 T&R

6000
DMP1022UFDF-13

DMP1022UFDF-13

Zetex Semiconductors (Diodes Inc.)

MOSFET P-CH 12V 9.5A 6UDFN

0
DMNH6042SK3Q-13

DMNH6042SK3Q-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 25A TO252-4L

1238
DMG4466SSSL-13

DMG4466SSSL-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 30V 10A 8SO

55000
DMT6007LFGQ-7

DMT6007LFGQ-7

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 15A PWRDI3333

0
DMN2004WK-7

DMN2004WK-7

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 20V 540MA SOT323

125741
DMG3420U-7

DMG3420U-7

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 20V 5.47A SOT23-3

0
DMP3105LVT-7

DMP3105LVT-7

Zetex Semiconductors (Diodes Inc.)

MOSFET P-CH 30V 3.1A TSOT23-6

803193000
BSN20Q-7

BSN20Q-7

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 50V 500MA SOT23

2174
DMTH6004SCTB-13

DMTH6004SCTB-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 100A TO263AB

51518400
DMNH6042SPD-13

DMNH6042SPD-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 25A PWRDI5060

10000
DMN6140L-13

DMN6140L-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 1.6A SOT23

54222
ZVN4525GTA

ZVN4525GTA

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 250V 310MA SOT223

18720
DMP2004WK-7

DMP2004WK-7

Zetex Semiconductors (Diodes Inc.)

MOSFET P-CH 20V 400MA SOT323

60000
DMNH6012LK3Q-13

DMNH6012LK3Q-13

Zetex Semiconductors (Diodes Inc.)

MOSFET N-CH 60V 80A TO252-4L

2504

Transistors - FETs, MOSFETs - Single

1. Overview

Field-Effect Transistors (FETs) and Metal-Oxide-Semiconductor FETs (MOSFETs) are voltage-controlled semiconductor devices that regulate current flow through an electric field. As fundamental components in modern electronics, they offer advantages such as high input impedance, low power consumption, and fast switching capabilities. Single discrete FETs/MOSFETs are widely used in power management, signal amplification, and switching applications across industries.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Junction FET (JFET)Voltage-controlled depletion mode operation, low noiseLow-noise amplifiers, analog switches
Enhancement Mode MOSFETNormally-off device, requires positive VGS to conductPower supplies, motor drives
Depletion Mode MOSFETNormally-on device, requires negative VGS to blockRadio frequency amplifiers, load switches
Insulated Gate Bipolar Transistor (IGBT)Combines MOSFET input with bipolar output, high current capacityHigh-power industrial equipment, electric vehicles

3. Structure and Composition

A typical MOSFET structure includes three terminals: Source, Gate, and Drain. The gate is insulated by a thin layer of silicon dioxide (SiO2), forming a capacitive control interface. The channel between source and drain is formed in a silicon substrate. Advanced devices use materials like silicon carbide (SiC) or gallium nitride (GaN) for higher performance. Packaging options include TO-220, DPAK, and SOT-23 for different thermal and space requirements.

4. Key Technical Specifications

ParameterDescription and Importance
VDS (Drain-Source Voltage)Maximum voltage rating between drain and source; determines breakdown tolerance
ID (Drain Current)Maximum continuous current capacity; critical for power handling
RDS(on)On-state resistance; impacts conduction losses and efficiency
VGS(th) (Threshold Voltage)Voltage required to form channel; determines control signal compatibility
QG (Gate Charge)Charge required for switching; affects switching speed and driver requirements
PD (Power Dissipation)Maximum power handling capability; dictates thermal management needs

5. Application Fields

  • Consumer Electronics: Mobile phone chargers, notebook power adapters
  • Industrial: Motor drives, uninterruptible power supplies (UPS)
  • Automotive: Electric vehicle (EV) battery management systems, HEV inverters
  • Telecommunications: Base station power amplifiers, optical network transceivers
  • Renewable Energy: Solar micro-inverters, wind turbine converters

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsCSD18534Q5A60V, 4.2m RDS(on), automotive-grade
STMicroelectronicsSTP55NF0655A, 60V, high-speed switching
Infineon TechnologiesIPB041N06N30.41 , 600V, TO-220 package
ON SemiconductorNDS355ANDepletion mode, 300mA, RF applications

7. Selection Guidelines

Key considerations include:

  • Voltage and current requirements under operating conditions
  • Thermal performance (RDS(on), package thermal resistance)
  • Switching speed vs. conduction loss trade-off
  • Gate drive compatibility with control circuitry
  • Environmental factors (temperature, vibration, humidity)
  • Cost-performance balance for volume production

8. Industry Trends

Current trends include:

  • Adoption of wide bandgap materials (SiC, GaN) for higher efficiency
  • Advanced packaging technologies (double-sided cooling, copper clip)
  • Integration with gate drivers and protection circuits
  • Miniaturization through trench and shielded gate structures
  • Development of automotive-qualified devices for EVs and ADAS

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