• • • • AUIRFS8403

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Reference price and stock shown as of 2026-09-19. Confirm live availability and unit price via RFQ before placing a PO.

AUIRFS8403

AUIRFS8403 - 20V-40V N-CHANNEL A

Infineon Technologies · Transistors - FETs, MOSFETs - Single · BOM Matching

Mfr. Part Number

AUIRFS8403

Manufacturer

Infineon Technologies

Package / Case

TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

Datasheet

Description

AUIRFS8403 - 20V-40V N-CHANNEL A

RoHS Status

Lead Free / RoHS Complaint

Availability

Sourcing — Lead time quoted on request (often 3–15 business days by channel)

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AUIRFS8403

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In Stock1,949

Unit

Price

$1.18

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Reference Price

Quantity	Price
1	$ 1.1800

Prices are for reference only. The final transaction is subject to confirmation.

As of 2026-09-19 · Valid as reference until 2026-09-26 · Request RFQ for live stock.

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Specification Summary

Package / Case

TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

Supplier Device Package

PG-TO263-3

Drain to Source Voltage (Vdss)

40 V

Drive Voltage (Max Rds On, Min Rds On)

10V

Current - Continuous Drain (Id) @ 25°C

123A (Tc)

Operating Temperature

-55°C ~ 175°C (TJ)

Mounting Type

Surface Mount

FET Type

N-Channel

Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote

Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)

Shortage / allocation / EOL lines may need longer — ask via RFQ.

Reference price and stock shown as of 2026-09-19. Confirm live availability and unit price via RFQ before placing a PO.

Lead time FAQ Authenticity FAQ MOQ FAQ

Specifications

Product Description

Purchase & Inquiry

Drive Voltage (Max Rds On, Min Rds On)

10V

Vgs (Max)

±20V

Mounting Type

Surface Mount

Operating Temperature

-55°C ~ 175°C (TJ)

Current - Continuous Drain (Id) @ 25°C

123A (Tc)

Drain to Source Voltage (Vdss)

40 V

FET Feature

FET Type

N-Channel

Gate Charge (Qg) (Max) @ Vgs

93 nC @ 10 V

Input Capacitance (Ciss) (Max) @ Vds

3183 pF @ 25 V

Power Dissipation (Max)

99W (Tc)

Rds On (Max) @ Id, Vgs

3.3mOhm @ 70A, 10V

Vgs(th) (Max) @ Id

3.9V @ 100µA

Supplier Device Package

PG-TO263-3

Technology

MOSFET (Metal Oxide)

Package / Case

TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

AUIRFS8403 - 20V-40V N-CHANNEL A

Brand Introduction

On April 1st, 1999, Siemens Semiconductors became Infineon Technologies. A dynamic more flexible company geared towards success in the competitive, ever-changing world of microelectronics.

Infineon is a leading global designer, manufacturer and supplier of a broad range of semiconductors used in various microelectronic applications. Infineon's product portfolio consists of logic products, including digital, mixed-signal, and analog integrated circuits, as well as discrete semiconductor products.

Drive Voltage (Max Rds On, Min Rds On)

10V

Vgs (Max)

±20V

Mounting Type

Surface Mount

Operating Temperature

-55°C ~ 175°C (TJ)

Current - Continuous Drain (Id) @ 25°C

123A (Tc)

Drain to Source Voltage (Vdss)

40 V

FET Feature

FET Type

N-Channel

Gate Charge (Qg) (Max) @ Vgs

93 nC @ 10 V

Input Capacitance (Ciss) (Max) @ Vds

3183 pF @ 25 V

Power Dissipation (Max)

99W (Tc)

Rds On (Max) @ Id, Vgs

3.3mOhm @ 70A, 10V

Vgs(th) (Max) @ Id

3.9V @ 100µA

Supplier Device Package

PG-TO263-3

Technology

MOSFET (Metal Oxide)

Package / Case

TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

AUIRFS8403 - 20V-40V N-CHANNEL A

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Buying FAQ — AUIRFS8403

How do I buy AUIRFS8403 from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes AUIRFS8403. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.

BOM matching · Anti-counterfeit · Lead time & shipping

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AUIRFS8403

Specification Summary

Related Parts

Buying FAQ — AUIRFS8403

How do I buy AUIRFS8403 from Yingxinyuan?

Is the listed price final?

How fresh is the stock figure?

How do you source authentic parts?

What is a typical lead time?

Explore by Brand, Category & Application