Transistors - FETs, MOSFETs

Transistors - FETs, MOSFETs - Single

Part Number	Description / PDF	Quantity
PMXB75UPEZ Nexperia	MOSFET P-CH 20V 2.9A DFN1010D-3	0
PMV48XP,215 Nexperia	MOSFET P-CH 20V 3.5A TO236AB	23533
PMPB19XP,115 Nexperia	MOSFET P-CH 20V 7.2A DFN2020MD-6	0
BSH103,235 Nexperia	MOSFET N-CH 30V 850MA TO236AB	32672
BUK964R8-60E,118 Nexperia	MOSFET N-CH 60V 100A D2PAK	13698
PMV74EPER Nexperia	MOSFET P-CH 30V 2.8A TO236AB	2325
PSMN8R5-60YS,115 Nexperia	MOSFET N-CH 60V 76A LFPAK56	457
BUK6215-75C,118-NEX Nexperia	MOSFET N-CH 75V 57A DPAK	0
PSMN017-60YS,115 Nexperia	MOSFET N-CH 60V 44A LFPAK56	88651
BUK663R5-30C,118 Nexperia	MOSFET N-CH 30V 100A D2PAK	8739
PSMN057-200B,118 Nexperia	MOSFET N-CH 200V 39A D2PAK	3416
PMBF170,235 Nexperia	MOSFET N-CH 60V 300MA TO236AB	19260
BUK9Y153-100E,115 Nexperia	MOSFET N-CH 100V 9.4A LFPAK56	11554
BUK6Y10-30PX Nexperia	MOSFET P-CH 30V 80A LFPAK56	877
BUK9M24-60EX Nexperia	MOSFET N-CH 60V 32A LFPAK33	0
PSMN2R2-40YSDX Nexperia	MOSFET N-CH 40V 180A LFPAK56	1043
PSMN1R3-30YL,115 Nexperia	MOSFET N-CH 30V 100A LFPAK56	0
BUK7608-40B,118 Nexperia	MOSFET N-CH 40V 75A D2PAK	1580
PH955L,115 Nexperia	MOSFET N-CH 55V 62.5A LFPAK56	10650
PMV120ENEAR Nexperia	MOSFET N-CH 60V 2.1A TO236AB	8129

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

Type	Functional Characteristics	Application Examples
Junction FET (JFET)	Voltage-controlled depletion mode operation, low noise	Low-noise amplifiers, analog switches
Enhancement Mode MOSFET	Normally-off device, requires positive V_GS to conduct	Power supplies, motor drives
Depletion Mode MOSFET	Normally-on device, requires negative V_GS to block	Radio frequency amplifiers, load switches
Insulated Gate Bipolar Transistor (IGBT)	Combines MOSFET input with bipolar output, high current capacity	High-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

Parameter	Description and Importance
V_DS (Drain-Source Voltage)	Maximum voltage rating between drain and source; determines breakdown tolerance
I_D (Drain Current)	Maximum continuous current capacity; critical for power handling
R_DS(on)	On-state resistance; impacts conduction losses and efficiency
V_GS(th) (Threshold Voltage)	Voltage required to form channel; determines control signal compatibility
Q_G (Gate Charge)	Charge required for switching; affects switching speed and driver requirements
P_D (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

Manufacturer	Representative Product	Key Features
Texas Instruments	CSD18534Q5A	60V, 4.2m R_DS(on), automotive-grade
STMicroelectronics	STP55NF06	55A, 60V, high-speed switching
Infineon Technologies	IPB041N06N3	0.41 , 600V, TO-220 package
ON Semiconductor	NDS355AN	Depletion mode, 300mA, RF applications

7. Selection Guidelines

Key considerations include:

Voltage and current requirements under operating conditions
Thermal performance (R_DS(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