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

Infineon Technologies IPP120N04S401AKSA1

Name: IPP120N04S401AKSA1
Brand: Infineon Technologies
SKU: IPP120N04S401AKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPP120N04S401AKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IPP120N04S401AKSA1.pdf

Description:: MOSFET N-CH 40V 120A TO220-3-1

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Product details

Overview

IPP120N04S401AKSA1 from Infineon Technologies is an N-channel enhancement-mode OptiMOS™-T2 power MOSFET in PG-TO220-3-1 package, rated for 40 V V_DS, 120 A continuous drain current at T_C = 25°C, and 1.5 mΩ max R_DS(on) (SMD version). It is AEC-qualified, 100% avalanche tested, and supports automotive and industrial DC-DC converters requiring high-current switching with low conduction loss.

For engineers reviewing the IPP120N04S401AKSA1 datasheet, IPP120N04S401AKSA1 pinout, IPP120N04S401AKSA1 application, or IPP120N04S401AKSA1 equivalent, key selection criteria include its 0.8 K/W R_thJC, 175°C operating temperature, 750 mJ single-pulse avalanche energy, gate plateau voltage of 5.3 V, and integrated body diode with 64 ns t_rr.

Technical Context

This device operates as a high-current, low-voltage power switch in synchronous rectification and motor drive half-bridges. Its 1.5 mΩ R_DS(on) (SMD) and 135–176 nC total gate charge enable efficient operation at high-frequency PWM up to 100 kHz in 12 V/24 V automotive systems.

The MOSFET features a robust 40 V breakdown voltage with 2.0–4.0 V gate threshold range, 10770–14000 pF input capacitance, and thermally optimized TO-220 package enabling direct heatsink mounting. Its 100% avalanche testing ensures reliability under inductive load switching stress.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	40 V - Maximum blocking voltage for 12 V/24 V battery rail applications
R_DS(on) max (SMD)	1.5 mΩ - Enables ≤180 W conduction loss at 120 A, critical for high-efficiency power stages
I_D continuous	120 A at T_C = 25°C - Supports high-current motor phases and DC-DC output stages
E_AS	750 mJ - Withstands single-pulse inductive energy without failure in solenoid or motor control
R_thJC	0.8 K/W - Allows direct thermal path to heatsink; enables >200 W dissipation with modest cooling
t_rr	64 ns - Minimizes body diode reverse recovery loss during synchronous FET commutation
Q_g total	135–176 nC - Determines gate driver current requirement (~1.5 A avg for 100 ns turn-on)

Pinout & Package

IPP120N04S401AKSA1 uses the PG-TO220-3-1 package: insulated case, vertical mounting, leaded through-hole configuration with tab-drain connection. The metal tab is electrically connected to the drain terminal and serves as primary thermal interface.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal	Low-side reference node; connects to ground or current-sense resistor
Pin 2 (Gate)	Control input	Receives 5.3 V gate plateau voltage; requires ≥1.5 A peak drive for fast switching
Pin 3 (Drain / Tab)	High-current output / thermal path	Electrically tied to metal tab; must be isolated from heatsink unless system design permits common-drain topology

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive powertrain and chassis applications per stress test requirements
100% avalanche tested	Each unit passes single-pulse E_AS = 750 mJ test, ensuring ruggedness in inductive switching
175°C maximum junction temperature	Enables operation in engine bay or enclosed industrial enclosures without derating at full current
MSL1 rating (260°C peak reflow)	Compatible with standard lead-free PCB assembly processes without moisture sensitivity concerns
Integrated body diode with 64 ns t_rr	Reduces need for external freewheeling diodes in H-bridge and buck converter topologies

Applications

Automotive DC-DC Converters

Industrial Motor Drives

Use Scenario: 12 V to 48 V bidirectional DC-DC conversion in mild-hybrid vehicles.

IC Role / Device Role / Timing Role: High-side synchronous rectifier switch in interleaved buck-boost stage.

Use Value: 1.5 mΩ R_DS(on) reduces conduction loss by >40% vs. legacy 3.0 mΩ devices at 100 A, improving system efficiency from 92% to 94.5%.

Use Scenario: 3-phase inverter for 5–10 kW PMSM drives in HVAC compressors.

IC Role / Device Role / Timing Role: Low-side power switch in IGBT/MOSFET hybrid half-bridge modules.

Use Value: 175°C rating allows sustained 120 A operation without thermal throttling in sealed enclosures with limited airflow.

Onboard Charger (OBC) Rectification

Server PSU Primary Switch

Use Scenario: Secondary-side synchronous rectification in 6.6 kW OBC AC/DC stage.

IC Role / Device Role / Timing Role: Fast-switching, low-R_DS(on) rectifier replacing Schottky diodes.

Use Value: 64 ns t_rr and 0.9–1.3 V V_SD minimize reverse recovery loss and forward drop, increasing conversion efficiency by 1.2% at full load.

Use Scenario: Primary-side high-current switch in 1U server 2 kW LLC resonant PSU.

IC Role / Device Role / Timing Role: Main switching transistor in asymmetric half-bridge configuration.

Use Value: 0.8 K/W R_thJC enables direct heatsink mounting with <1.5°C/W total thermal resistance, maintaining T_j < 125°C at 120 A continuous.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPP120N04S4-01	Same die, identical R_DS(on), Q_g, and avalanche rating; differs only in marking suffix (KSA1 denotes tape-and-reel packaging variant)	No functional difference; KSA1 indicates AEC-compliant reel packaging per JEDEC J-STD-020	Select KSA1 for automated SMT line compatibility; select non-KSA1 for manual prototyping or low-volume through-hole assembly
IPB120N04S4-01	Same silicon, but in PG-TO263-3-2 (D²PAK) package; R_DS(on) identical, but R_thJC = 0.7 K/W and higher thermal mass	Better suited for surface-mount designs with large copper pour; less suitable for discrete heatsink mounting	Choose IPB120N04S4-01 when PCB space allows SMD layout and thermal vias; choose IPP120N04S401AKSA1 for through-hole mechanical stability and serviceability

Compared with IPP120N04S401AKSA1, the KSA1 variant offers identical electrical performance with optimized packaging for high-volume production, while IPB120N04S4-01 trades mechanical mounting flexibility for superior PCB-level thermal performance-selection depends on assembly method and thermal management architecture.

Availability

IPP120N04S401AKSA1 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and onboard chargers requiring stable component supply across extended temperature and high-reliability environments.

Supply support for IPP120N04S401AKSA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global manufacturing and R&D centers.

This part belongs to the OptiMOS™-T2 product line, designed specifically for high-current, low-voltage power conversion in automotive and industrial applications where conduction loss, thermal robustness, and avalanche ruggedness are critical.

FAQ

What is the maximum allowable gate-source voltage for IPP120N04S401AKSA1?

The absolute maximum gate-source voltage is ±20 V. Operation above +20 V risks permanent gate oxide damage, while negative voltage beyond –20 V may cause gate leakage or threshold shift. Recommended drive is 10 V for full enhancement, with 5.3 V gate plateau confirmed in characterization.

Does IPP120N04S401AKSA1 require a gate resistor, and what value is recommended?

Yes-a gate resistor is required to control dV/dt and prevent oscillation. For 100 kHz switching with 120 A load, a 3.5 Ω resistor is validated per datasheet test conditions (V_DD = 20 V, R_G = 3.5 Ω), yielding ~34 ns turn-on delay and 16 ns rise time.

Is the metal tab of IPP120N04S401AKSA1 electrically isolated from the PCB mount?

No-the metal tab is internally connected to the drain terminal and is not electrically isolated. When mounted to a heatsink, electrical isolation (e.g., mica washer or silicone pad) is mandatory unless the heatsink is referenced to drain potential in the circuit design.

How does the 175°C operating temperature affect long-term reliability in continuous 120 A operation?

At 120 A and T_C = 100°C, junction temperature remains below 150°C due to 0.8 K/W R_thJC, well within the 175°C limit. This margin extends lifetime per Arrhenius model-MTTF exceeds 100,000 hours at 150°C T_j, supporting 15+ year automotive service life.

IPP120N04S401AKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 120A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.9mOhm @ 100A, 10V

Vgs(th) (Max) @ Id:: 4V @ 140µA

Gate Charge (Qg) (Max) @ Vgs:: 176 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 14000 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 188W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-3-1

IPP120N04S401AKSA1 FAQ

1.How can I place an order for IPP120N04S401AKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPP120N04S401AKSA1 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 IPP120N04S401AKSA1 reliable?

The price and inventory of IPP120N04S401AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPP120N04S401AKSA1 is usually 5 days.

3.What payment methods are accepted for IPP120N04S401AKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPP120N04S401AKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPP120N04S401AKSA1?

IPP120N04S401AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPP120N04S401AKSA1 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 IPP120N04S401AKSA1?

For technical support, including IPP120N04S401AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPP120N04S401AKSA1 requirements.

6.How does Aetrix verify that IPP120N04S401AKSA1 is sourced from the original manufacturer or authorized distributors?

All IPP120N04S401AKSA1 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 IPP120N04S401AKSA1 meets industry standards.

7.What is the process for return or replacement of IPP120N04S401AKSA1?

All IPP120N04S401AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPP120N04S401AKSA1, 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 IPP120N04S401AKSA1 part is unused and in its original packaging.

Return procedure for IPP120N04S401AKSA1:

1.Submit a request within 90 days.

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

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