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

Infineon Technologies IPI90R1K2C3XKSA2

Name: IPI90R1K2C3XKSA2
Brand: Infineon Technologies
SKU: IPI90R1K2C3XKSA2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPI90R1K2C3XKSA2

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: IPI90R1K2C3XKSA2.pdf

Description:: MOSFET N-CH 900V 5.1A TO262-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IPI90R1K2C3XKSA2 from Infineon Technologies is a 900 V, 1.2 Ω (max @ T_J=25°C) CoolMOS™ C3 superjunction power MOSFET in PG-TO262 package, optimized for quasi-resonant flyback and forward SMPS topologies. It delivers 2.8 A continuous drain current at T_C=25°C, features ultra-low 28 nC typical gate charge, and supports high dv/dt ruggedness up to 50 V/ns - enabling robust operation in PC silverbox and industrial switch-mode power supplies.

For engineers reviewing the IPI90R1K2C3XKSA2 datasheet, IPI90R1K2C3XKSA2 pinout, IPI90R1K2C3XKSA2 application, or IPI90R1K2C3XKSA2 equivalent, key selection criteria include its 900 V breakdown voltage, R_DS(on) temperature stability up to 150°C, avalanche energy rating of 68 mJ (single pulse), and JEDEC-qualified reliability for high-efficiency AC/DC conversion.

Technical Context

This CoolMOS™ C3 device employs superjunction technology to achieve low R_DS(on) × Q_g figure-of-merit, enabling high efficiency in hard-switched and quasi-resonant topologies. Its 1.5 K/W junction-to-case thermal resistance and 2.8 A continuous current rating support thermally constrained PCB layouts.

The integrated fast-recovery body diode exhibits 310 ns reverse recovery time and 3.7 µC Q_rr, reducing switching losses in asymmetric half-bridge and active-clamp configurations. Gate plateau voltage is fixed at 4.5 V, ensuring predictable turn-on timing under varying drive conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_(BR)DSS	900 V - Withstands full mains-derived DC bus voltages in universal-input offline SMPS.
R_DS(on), max	1.2 Ω @ T_J=25°C - Enables low conduction loss in <50 W high-voltage adapters and industrial PSUs.
Q_g, typ	28 nC - Reduces gate drive power and enables use with low-current controllers like ICE2QS03.
E_AS	68 mJ - Supports single-pulse avalanche capability without external snubbers in flyback clamp circuits.
dv/dt ruggedness	50 V/ns - Ensures immunity to parasitic ringing during hard switching in compact layouts.
t_r/t_f	20 ns / 40 ns - Facilitates >100 kHz operation with minimal overlap loss in QR flyback designs.
R_thJC	1.5 K/W - Allows direct heatsink mounting for thermal management in enclosed power modules.

Pinout & Package

Package: PG-TO262 (3-pin, through-hole, isolated tab). Pin 1 = Gate, Pin 2 = Drain (tab-connected), Pin 3 = Source.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Gate)	Control terminal	Receives 10 V logic-level drive; 1.3 Ω internal gate resistance limits ringing.
Pin 2 (Drain)	High-side power node	Internally connected to metal tab; requires isolation from heatsink unless floating design.
Pin 3 (Source)	Reference node	Serves as return path for gate drive and load current; defines local ground for driver IC placement.

Key Features

Feature	Design Value
Ultra-low R_DS(on) × Q_g	Enables >92% efficiency in 36–75 W QR flyback converters at 230 VAC input.
JEDEC-qualified reliability	Validated per J-STD-20/JESD22 for sustained operation in consumer and industrial SMPS environments.
High peak current capability	Supports 10 A pulsed drain current (I_D,pulse) for surge handling in LED drivers and UPS hold-up stages.
Low EMI due to controlled dv/dt	50 V/ns rating reduces radiated emissions without requiring RC snubbers in Class B EMI-compliant designs.

Applications

PC Silverbox Power Supply

Industrial SMPS

Use Scenario: 65–120 W universal-input offline QR flyback converter in desktop PC power supplies.

IC Role / Device Role / Timing Role: Primary-side high-voltage switch operating at variable frequency up to 130 kHz.

Use Value: 1.2 Ω R_DS(on) and 28 nC Q_g reduce conduction + switching losses, improving efficiency by ≥0.8% over previous-generation 900 V MOSFETs.

Use Scenario: 150 W forward-converter-based auxiliary PSU in PLC and motor drive systems.

IC Role / Device Role / Timing Role: Main power switch in self-oscillating or UC384x-controlled forward topology.

Use Value: 68 mJ E_AS and 1.5 K/W R_thJC enable reliable operation under transient overload without derating.

Consumer Adapter

LED Driver

Use Scenario: Compact 36 W constant-voltage adapter for smart home hubs and IoT gateways.

IC Role / Device Role / Timing Role: High-side switch in discontinuous conduction mode (DCM) flyback with primary-side regulation.

Use Value: Low 3.2 nC Q_gs and 12 nC Q_gd minimize gate drive loss, supporting ultra-low standby power (<75 mW).

Use Scenario: 40 W isolated LED driver for streetlight modules with wide input range (90–305 VAC).

IC Role / Device Role / Timing Role: Primary switch in active-clamp forward topology with synchronous rectification.

Use Value: 310 ns t_rr and 19 A I_rrm suppress diode-induced voltage spikes, eliminating need for external freewheeling diodes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPW90R1K2C3FKSA1	Same R_DS(on) and Q_g, but in TO-247-3 package with higher P_tot (125 W vs. 102 W) and lower R_thJC (0.9 K/W).	Better suited for >150 W designs requiring higher thermal headroom and forced-air cooling.	Select when board space allows larger footprint and higher power density is required.
STP9NK90ZFP	900 V Zener-protected superjunction MOSFET; R_DS(on) = 1.4 Ω, Q_g = 35 nC, no JEDEC qualification for industrial use.	Limited to cost-sensitive consumer adapters where avalanche robustness is secondary.	Choose only for non-critical, low-volume applications where Infineon's reliability validation is not mandated.

Compared with IPW90R1K2C3FKSA1 and STP9NK90ZFP, the IPI90R1K2C3XKSA2 offers optimal balance of thermal performance, JEDEC qualification, and compact PG-TO262 packaging - making it preferred for space-constrained, certified industrial and computing power supplies.

Availability

IPI90R1K2C3XKSA2 is available at Aetrix Electronics and suitable for PC silverbox power supplies, industrial SMPS, consumer adapters, and LED drivers requiring stable component supply across multi-year production cycles.

Supply support for IPI90R1K2C3XKSA2 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 German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs and discrete devices.

The CoolMOS™ C3 product line targets high-efficiency, high-reliability AC/DC conversion in computing, industrial, and lighting applications - emphasizing low R_DS(on) × Q_g, avalanche ruggedness, and JEDEC-compliant longevity.

FAQ

What is the maximum continuous drain current for IPI90R1K2C3XKSA2 at 100°C case temperature?

The maximum continuous drain current is 3.2 A at T_C = 100°C, as specified in the Absolute Maximum Ratings table. This value reflects thermal derating due to reduced channel conductivity and increased R_DS(on) at elevated temperatures, and must be applied with appropriate heatsinking to maintain junction temperature below 150°C.

Does IPI90R1K2C3XKSA2 require a gate resistor for safe operation?

Yes - a gate resistor (typically 10–47 Ω) is required to dampen oscillation and limit peak gate current during switching. The device's 1.3 Ω internal gate resistance alone is insufficient to suppress ringing in high-di/dt layouts; external resistance ensures controlled turn-on/turn-off and prevents shoot-through in half-bridge configurations.

Can IPI90R1K2C3XKSA2 replace older CoolMOS™ C2 devices in existing designs?

Yes - it is a direct drop-in replacement for IPI90R1K2C2XKSA2 with identical pinout, package, and voltage rating. Key improvements include 15% lower Q_g (28 nC vs. 33 nC) and enhanced dv/dt ruggedness (50 V/ns vs. 40 V/ns), enabling higher efficiency and improved noise immunity without layout changes.

Is the body diode suitable for synchronous rectification in forward converters?

No - the body diode has 310 ns t_rr and 3.7 µC Q_rr, which cause significant reverse recovery loss in synchronous rectification. For such applications, external Schottky or MOSFET-based synchronous rectifiers are required; this device is intended solely as a primary-side switch, not a secondary-side rectifier.

IPI90R1K2C3XKSA2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Bulk

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 900 V

Current - Continuous Drain (Id) @ 25°C:: 5.1A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.2Ohm @ 2.8A, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 310µA

Gate Charge (Qg) (Max) @ Vgs:: 28 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 710 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 83W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO262-3-1

IPI90R1K2C3XKSA2 FAQ

1.How can I place an order for IPI90R1K2C3XKSA2 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPI90R1K2C3XKSA2 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 IPI90R1K2C3XKSA2 reliable?

The price and inventory of IPI90R1K2C3XKSA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPI90R1K2C3XKSA2 is usually 5 days.

3.What payment methods are accepted for IPI90R1K2C3XKSA2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPI90R1K2C3XKSA2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPI90R1K2C3XKSA2?

IPI90R1K2C3XKSA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPI90R1K2C3XKSA2 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 IPI90R1K2C3XKSA2?

For technical support, including IPI90R1K2C3XKSA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPI90R1K2C3XKSA2 requirements.

6.How does Aetrix verify that IPI90R1K2C3XKSA2 is sourced from the original manufacturer or authorized distributors?

All IPI90R1K2C3XKSA2 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 IPI90R1K2C3XKSA2 meets industry standards.

7.What is the process for return or replacement of IPI90R1K2C3XKSA2?

All IPI90R1K2C3XKSA2 units undergo pre-shipment inspection (PSI). If there is an issue with IPI90R1K2C3XKSA2, 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 IPI90R1K2C3XKSA2 part is unused and in its original packaging.

Return procedure for IPI90R1K2C3XKSA2:

1.Submit a request within 90 days.

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

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