FQD3N40TM Allicdata Electronics
Allicdata Part #:

FQD3N40TM-ND

Manufacturer Part#:

FQD3N40TM

Price: $ 0.00
Product Category:

Discrete Semiconductor Products

Manufacturer: ON Semiconductor
Short Description: MOSFET N-CH 400V 2A DPAK
More Detail: N-Channel 400V 2A (Tc) 2.5W (Ta), 30W (Tc) Surface...
DataSheet: FQD3N40TM datasheetFQD3N40TM Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Vgs(th) (Max) @ Id: 5V @ 250µA
Package / Case: TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package: D-Pak
Mounting Type: Surface Mount
Operating Temperature: -55°C ~ 150°C (TJ)
Power Dissipation (Max): 2.5W (Ta), 30W (Tc)
FET Feature: --
Input Capacitance (Ciss) (Max) @ Vds: 230pF @ 25V
Vgs (Max): ±30V
Gate Charge (Qg) (Max) @ Vgs: 7.5nC @ 10V
Series: QFET®
Rds On (Max) @ Id, Vgs: 3.4 Ohm @ 1A, 10V
Drive Voltage (Max Rds On, Min Rds On): 10V
Current - Continuous Drain (Id) @ 25°C: 2A (Tc)
Drain to Source Voltage (Vdss): 400V
Technology: MOSFET (Metal Oxide)
FET Type: N-Channel
Part Status: Obsolete
Packaging: Tape & Reel (TR) 
Description

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FQD3N40TM is a normal-level N-Channel enhancement mode insulated-gate field effect transistor (IGFET) which has been designed by Fairchild Semiconductor as part of their advanced powerTrench® MOSFET family. The device exhibits excellent dynamic and high-frequency performance and is suitable for a wide range of switch-mode power supplies. This article aims to provide an overview of FQD3N40TM, including its application field and working principle.

Application field

The FQD3N40TM is an N-channel MOSFET that is commonly used as a switch in power applications. This includes switch mode power supplies (SMPS), computer power supplies, power converters, chargers and other power management applications. Aside from switch applications, it can also be used as an adjustable current limiter in power supplies, motor control applications and motor drivers. Additionally, the FQD3N40TM can be used as an amplifier and buffer in high-speed MOSFET circuits.

Working Principle

The principle of operation of an N-channel MOSFET is very similar to that of an N-channel junction field effect transistor (JFET). The FQD3N40TM is an insulated-gate FET with three terminals - Gate, Drain and Source. As with JFETs, the FQD3N40TM operation is determined by the amount of voltage applied to the Gate terminal. When no voltage is applied, the FQD3N40TM can be thought of as an open switch, allowing no current to flow between the Drain and Source terminals. As the voltage is increased, a positive electric field is created around the Gate terminal, which in turn depletes the negative charge carriers in the channel region (in this case, electrons). This decreases the resistance between the Drain and Source terminals, allowing current to flow. When the voltage is increased to a certain level, the resistance between the two terminals becomes so low that it acts as if the FQD3N40TM is a closed switch, allowing maximum conduction.

Advantages of FQD3N40TM

The FQD3N40TM has a number of advantages over other MOSFETs and field effect transistors. For one, it has a low on-resistance, which makes it well suited for high current applications. It also has a wide operating voltage range, which allows it to be used in applications that require a wide variety of voltages. In addition, it has a high maximum breakdown voltage, making it suitable for use in both high voltage and low voltage applications. Finally, it has a fast switching time, which makes it an ideal choice for high speed applications.

Conclusion

The FQD3N40TM is a normal-level N-channel enhancement mode insulated-gate field effect transistor (IGFET) from Fairchild Semiconductor\'s advanced powerTrench® MOSFET family. It is commonly used as a power switch and is well suited for high current and high speed applications, as well as wide operating voltage applications. It exhibits excellent dynamic and high-frequency performance and is generally considered to be a reliable device.

The specific data is subject to PDF, and the above content is for reference

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