INDUSTRY COMPONENT

Power MOSFET

Power MOSFET is a voltage-controlled semiconductor switch used for efficient power conversion and switching in electronic circuits.

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Component Specifications

Definition
A Power Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is a type of field-effect transistor designed to handle significant power levels. It operates as a voltage-controlled switch, where a voltage applied to the gate terminal controls the flow of current between the drain and source terminals. In High-Efficiency LED Driver Modules, it enables precise pulse-width modulation (PWM) for regulating current to LEDs, minimizing energy loss as heat through low on-resistance (Rds(on)) and fast switching speeds.
Working Principle
The Power MOSFET works by applying a voltage to the gate terminal, which creates an electric field that forms a conductive channel between the drain and source. This allows current to flow when the gate voltage exceeds a threshold (Vgs(th)). It operates in enhancement mode, meaning it is normally off (non-conductive) without gate voltage. In LED drivers, it switches on and off rapidly to control average current through PWM, ensuring stable LED brightness and efficiency.
Materials
Silicon (Si) or Silicon Carbide (SiC) semiconductor wafer, with aluminum or copper metallization for terminals, encapsulated in epoxy or plastic packaging (e.g., TO-220, D2PAK).
Technical Parameters
ParameterTypical rangeNotes & selection driver
Package TypeTO-220, D2PAK, SO-8
Switching SpeedNanoseconds range
Current Rating (Id)Up to 50A
Voltage Rating (Vds)Up to 600V
On Resistance (Rds(on))As low as 10mΩ
Gate Threshold Voltage (Vgs(th))2-4V

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 9001, IEC 60747-8

Parent Products

This component is used in the following industrial products

High-Efficiency LED Driver Module

The High-Efficiency LED Driver Module is a compact electronic component that converts alternating current (AC) mains power into the regulated direct current (DC) required by LED lighting arrays.

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Computer Power Supply Unit (PSU) Voltage Regulator Module

Electronic component that stabilizes and regulates DC voltage outputs within a computer power supply.

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Driver Circuit

Electronic circuit that regulates power and controls current to LEDs in an illumination array.

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Engineering Analysis

Risks & Mitigation
  • Thermal runaway due to overheating
  • Gate oxide damage from electrostatic discharge (ESD)
  • Switching losses at high frequencies
FMEA Triads
Trigger: Excessive gate voltage or ESD
Failure: Gate oxide breakdown, leading to short circuit or permanent damage
Mitigation: Use ESD protection circuits, adhere to voltage limits, and implement proper handling procedures.
Trigger: Inadequate heat dissipation
Failure: Overheating and thermal shutdown, reducing efficiency or causing failure
Mitigation: Design with heatsinks, ensure proper airflow, and monitor temperature in the LED driver module.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±5% for electrical parameters under specified conditions
Test Method
Dynamic and static testing per IEC 60747-8, including Vds, Id, Rds(on), and switching characteristics measurement.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Power MOSFET

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Greegoo Electric
Zhejiang, CN
Also makes: Current Transformer (CT), Semiconductor Device, Power Semiconductor and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

Why use a Power MOSFET in LED drivers?

Power MOSFETs offer fast switching, low on-resistance, and precise control via PWM, making them ideal for regulating current in LED drivers to maximize efficiency and lifespan.

How does gate voltage affect MOSFET operation?

A sufficient gate voltage (above Vgs(th)) turns the MOSFET on, allowing current flow. Below this threshold, it remains off, enabling digital control with minimal power loss.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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