What are the key features of Fairchild FQS4903TF?

This product belongs to the MOSFETs category and ships in standard packaging. It features high reliability, stable performance and low power consumption. Key parameters include wide operating range, low loss, and over-temperature protection, suitable for industrial applications. Manufactured by Fairchild with full traceability.

What are the main application scenarios for FQS4903TF?

Typical applications include power management, industrial control. Additionally, it is widely used in automotive electronics, telecom infrastructure, medical devices, and consumer electronics as a critical circuit component, improving system integration and energy efficiency.

How does FQS4903TF work?

This device follows established MOSFETs design principles. Core functional stages include input handling, signal and power processing, and protection logic, ensuring stable operation under varying conditions. Refer to the datasheet for the detailed characteristics and application guidance.

What is the technical performance of FQS4903TF?

Performance highlights: stable characteristics across the operating temperature range, low loss, and long service life. Reliable contact and shock resistance, with protection against over-current and over-voltage where applicable. Meets industrial and automotive reliability standards where the series qualifies.

What is the current market demand for FQS4903TF?

The global MOSFETs market is growing at ~6-8% CAGR, with particularly strong demand in power management. Fairchild FQS4903TF is a mainstream model with stable stock and a typical lead time of 2-4 weeks. Driven by new energy and smart electronics trends, inquiries for this model are steadily increasing, indicating a positive long-term outlook.

What are the technical characteristics of FQS4903TF?

Three main technical features: 1) High reliability – stable performance over the rated life; 2) Low-loss design – reduced energy loss in operation; 3) Wide adaptability – compatible with various operating conditions. Additionally, Fairchild provides full technical support and reference designs.

FQS4903TF MOSFETs 500V Dual N-Ch QFET by Fairchild

FQS4903TF | Fairchild MOSFETs 500V Dual N-Ch QFET

Category: MOSFETs

Brand: Fairchild

MOSFETs 500V Dual N-Ch QFET

Stock: On request

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Product Details

PDF Datasheet

Technical Docs

Description: MOSFETs 500V Dual N-Ch QFET

Technical Parameters

Applications	General Purpose
Brand	Fairchild
Category	MOSFETs
Configuration	Single
Data Tier	Family Level
Description	MOSFETs 500V Dual N-Ch QFET
Lead Free	Yes
Manufacturer	onsemi
Mounting Type	Surface Mount / Through Hole
Number of Terminals	3
Operating Temperature	-55 to +150 C
Package	SOT-23
Package / Case	SMD / Through Hole
Packaging	Reel
Product Type	Diode / Transistor / MOSFET
RoHS	Compliant
Standard Pack Qty	3000
Technology	N-Channel

Standard Packaging: Standard packaging refers to the minimum packaging quantity obtained from the manufacturer/distributor. Therefore, the minimum order quantity may be less than the manufacturer's standard packaging quantity. When products are broken down into smaller quantities, the packaging type (i.e., reel, tube, tray) may change, subject to actual packaging delivery.

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3D Model (.stp)

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FQS4903TF Application and Selection Guide

FQS4903TF Model and Manufacturer Information

FQS4903TF, a MOSFETs manufactured by Fairchild: FQS4903TF helps you confirm the specific model, while Fairchild helps you confirm the product source. If you are selecting a part, you can first check whether FQS4903TF meets your requirements, then check whether Fairchild matches your expectations, and then refer to MOSFETs 500V Dual N-Ch QFET for further evaluation.

FQS4903TF Product Parameters and Description

The main parameters of Fairchild's MOSFETs product FQS4903TF include MOSFETs 500V Dual N-Ch QFET. This is a MOSFETs produced by Fairchild, and it also offers good applicability in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices.

FQS4903TF Application and Selection Reference

Fairchild's MOSFETs product FQS4903TF has a relatively wide range of applications in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices. Overall, FQS4903TF is a MOSFETs solution worth considering, and manufacturer Fairchild provides long-term supply program support for this product, which helps ensure supply continuity during mass production.

Recommended Part Numbers for FQS4903TF

Designers looking for FQS4903TF recommended parts can evaluate the following options. FQS4903TF selection decisions should verify parameters, tolerance and packaging against the original design bill of materials.

Recommended Part	Brand	Description
FDC654P	FAIRCHILD
FDB44N25TM	FAIRCHILD	Power MOSFET, N-Channel, UniFETTM, 250V, 44A, 69mΩ, D2PAK, 800-REEL
FQI27N25TU	FAIRCHILD	N-Channel QFET® MOSFET 250V, 25.5A, 110mΩ, 3LD, TO262, JEDEC VARIATION AA (I2PAK), 1000/RAIL

EZKEY can provide FQS4903TF recommended part comparison data and engineering samples for evaluation.