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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IRF7450

Name: IRF7450
Brand: Infineon Technologies
SKU: IRF7450
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRF7450

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: IRF7450.pdf

Description:: MOSFET N-CH 200V 2.5A 8SO

Quantity:: RFQ Add To RFQ list

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Inventory:4,240

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Product details

Overview

IRF7450 from Infineon Technologies (formerly International Rectifier) is a 200V, 2.5A N-channel enhancement-mode MOSFET in SO-8 package, optimized for high-frequency DC-DC converters. It features 0.17Ω R_DS(on) at V_GS = 10V, 26–39nC total gate charge, and fully characterized avalanche capability (230mJ E_AS). Used as primary-side switch in offline SMPS and synchronous rectifier in isolated flyback topologies.

For engineers reviewing the IRF7450 datasheet, IRF7450 pinout, IRF7450 application, or IRF7450 equivalent, key selection criteria include its low Q_gd/Q_g ratio (≈46% typ), effective C_oss of 25pF, 11V/ns diode dv/dt rating, and SO-8 thermal performance (R_θJA = 50°C/W).

Technical Context

This HEXFET power MOSFET employs planar silicon process with integrated body diode and is rated for repetitive unclamped inductive switching. Its gate threshold voltage (3.0–5.5V) enables direct drive from 5V logic controllers, while low Miller charge (12–18nC) minimizes switching losses in hard-switched topologies above 100kHz.

The device's dynamic parameters are fully characterized across temperature: R_DS(on) increases to ~1.8× nominal at T_J = 150°C, and reverse recovery charge (Q_rr) ranges 350–525nC with trr = 97–146ns at di/dt = 100A/µs - critical for ZVS/ZCS design validation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	200V - supports 170V AC input rectified rails with 20% margin for surge transients
R_DS(on) max	0.17Ω @ V_GS = 10V - delivers ≤0.64W conduction loss at 2.5A DC
Q_g max	39nC - determines gate driver current requirement (≥3.9mA avg for 100kHz, 10V swing)
E_AS	230mJ - enables robust operation under unclamped inductive turn-off without external snubber
C_{oss eff.}	25pF - defines hard-switching energy loss (½ × C_oss × V_DS²) during turn-on
R_θJA	50°C/W - limits continuous power dissipation to 2.5W on standard FR-4 PCB with 1-in² copper pour

Pinout & Package

IRF7450 is housed in JEDEC MS-012AA-compliant SO-8 surface-mount package (4.9mm × 6.0mm × 1.75mm), with exposed drain paddle thermally connected to pins 1–4 and 6–8. The package supports reflow soldering up to 300°C for 10 seconds at 1.6mm from case edge.

Pin/Terminal	Circuit Role	Design Meaning
1–4, 6–8 (D)	Drain	High-side switching node; all eight pins electrically tied to internal drain metallization for low-inductance, high-current path
5 (G)	Gate	Control terminal requiring <20nC gate charge to reach full enhancement; sensitive to ESD (±30V rating)
7–8 (S)	Source	Power return path and reference for gate drive; pins 7 and 8 provide dual-source connection for reduced loop inductance

Key Features

Feature	Design Value
Low Q_gd/Q_g ratio	≈46% (12–18nC / 26–39nC) - reduces Miller-induced switching delay and improves controllability in high-dV/dt environments
Fully characterized C_oss(V_DS)	25pF effective output capacitance - enables accurate calculation of turn-on switching loss in resonant and hard-switched converters
Avalanche-rated	230mJ single-pulse E_AS - eliminates need for external clamping circuits in flyback and forward converter primary switches
Lead-free (PbF)	RoHS-compliant finish with SnAgCu plating - meets IPC-J-STD-020 moisture sensitivity level 1 (MSL1) for board assembly

Applications

Offline AC-DC Adapters

Isolated DC-DC Converters

Use Scenario: 12W–30W universal-input (85–265VAC) flyback adapter powering USB-C PD devices.

IC Role / Device Role / Timing Role: Primary-side power switch operating at 65–130kHz with self-supplied gate drive from auxiliary winding.

Use Value: Low R_DS(on) and Q_g reduce no-load consumption and improve efficiency across 10–100% load range per DOE Level VI requirements.

Use Scenario: 48V-to-12V isolated half-bridge DC-DC module for telecom shelf power distribution.

IC Role / Device Role / Timing Role: Synchronous rectifier on secondary side, driven by transformer-coupled gate signals with adaptive dead-time control.

Use Value: Body diode V_SD ≤1.3V and Q_rr ≤525nC minimize reverse recovery loss and enable >94% full-load efficiency at 200kHz.

Industrial Motor Drives

LED Driver Power Stages

Use Scenario: 24V/48V BLDC gate driver stage controlling 3-phase inverter for fan/pump motor control.

IC Role / Device Role / Timing Role: High-side switch in three half-bridge legs, driven by isolated gate drivers with 100ns propagation delay.

Use Value: 11V/ns dv/dt immunity prevents false turn-on during fast commutation, reducing shoot-through risk in 20kHz PWM operation.

Use Scenario: Constant-current buck-boost LED driver for architectural lighting (36–72V output, 1.5A).

IC Role / Device Role / Timing Role: Main switching element in continuous conduction mode (CCM) topology with valley-switching control.

Use Value: Characterized C_iss, C_oss, and C_rss allow precise timing of zero-voltage switching transitions, lowering EMI and improving thermal stability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP12NM60N	600V V_DSS, 12A I_D, 0.32Ω R_DS(on), TO-220 package	Higher voltage rating but larger footprint and higher conduction loss; requires heatsink for >1A continuous	Select when system requires >400V blocking or >5A peak current, not for space-constrained SMPS
Si2302DS	20V V_DSS, 2.6A I_D, 0.075Ω R_DS(on), SOT-23 package	Lower voltage rating and smaller package; unsuitable for >30V bus applications	Select only for low-voltage (<24V) DC-DC stages where SO-8 thermal mass is unnecessary

Compared with STP12NM60N and Si2302DS, IRF7450 uniquely balances 200V rating, SO-8 thermal performance, and sub-40nC gate charge - making it optimal for compact, high-frequency, medium-power SMPS where board area and switching loss are co-constrained.

Availability

IRF7450 is available at Aetrix Electronics and suitable for offline AC-DC adapters, isolated DC-DC converters, and industrial motor drives requiring stable component supply and long-term manufacturability.

Supply support for IRF7450 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control ICs and discrete devices.

The IRF7450 belongs to Infineon's HEXFET® power MOSFET product line, engineered specifically for high-efficiency, high-frequency switched-mode power supplies in consumer and industrial applications.

FAQ

What is the maximum continuous drain current at 70°C ambient?

The IRF7450 supports 2.0A continuous drain current at T_A = 70°C with V_GS = 10V, derated from 2.5A at 25°C using the linear derating factor of 0.02W/°C and R_DS(on) increase with temperature. This assumes standard SO-8 mounting on 1-inch square copper PCB without forced airflow.

Does IRF7450 have an integrated Schottky diode?

No. IRF7450 uses a monolithic p-n junction body diode inherent to its vertical DMOS structure. Its diode forward voltage is 1.3V at 1.5A and 25°C, with reverse recovery time of 97–146ns - typical of fast-recovery MOSFET body diodes, not Schottky characteristics.

Can IRF7450 be used in synchronous rectification?

Yes - its low R_DS(on) (0.17Ω), characterized Q_rr (350–525nC), and fast trr (97–146ns) make it suitable for secondary-side synchronous rectification in isolated flyback and forward converters up to 200kHz, provided gate drive timing avoids shoot-through.

What is the gate threshold voltage range and its impact on drive compatibility?

V_GS(th) is specified from 3.0V to 5.5V at I_D = 250µA. This allows reliable turn-on with 5V logic-level drivers but requires careful layout to avoid noise-induced partial turn-on near the lower threshold; gate resistors ≥10Ω are recommended for stability in noisy environments.

IRF7450 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 200 V

Current - Continuous Drain (Id) @ 25°C:: 2.5A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 170mOhm @ 1.5A, 10V

Vgs(th) (Max) @ Id:: 5.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 39 nC @ 10 V

Vgs (Max):: ±30V

Input Capacitance (Ciss) (Max) @ Vds:: 940 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

IRF7450 FAQ

1.How can I place an order for IRF7450 through Aetrix?

Please submit a Request for Quotation (RFQ) for IRF7450 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRF7450 reliable?

The price and inventory of IRF7450 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF7450 is usually 5 days.

3.What payment methods are accepted for IRF7450?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF7450 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRF7450?

IRF7450 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRF7450 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRF7450?

For technical support, including IRF7450 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF7450 requirements.

6.How does Aetrix verify that IRF7450 is sourced from the original manufacturer or authorized distributors?

All IRF7450 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRF7450 meets industry standards.

7.What is the process for return or replacement of IRF7450?

All IRF7450 units undergo pre-shipment inspection (PSI). If there is an issue with IRF7450, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRF7450 part is unused and in its original packaging.

Return procedure for IRF7450:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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