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

Infineon Technologies IPI90R1K2C3XKSA1

Name: IPI90R1K2C3XKSA1
Brand: Infineon Technologies
SKU: IPI90R1K2C3XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPI90R1K2C3XKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IPI90R1K2C3XKSA1.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IPI90R1K2C3XKSA1 from Infineon Technologies is a 900 V, 1.2 Ω R_DS(on) max CoolMOS™ 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 total 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 IPI90R1K2C3XKSA1 datasheet, IPI90R1K2C3XKSA1 pinout, IPI90R1K2C3XKSA1 application, or IPI90R1K2C3XKSA1 equivalent, key selection criteria include its 900 V breakdown voltage, 1.2 Ω R_DS(on) at 25 °C, 28 nC Q_g, JEDEC-qualified reliability, and TO-262 thermal resistance of 1.5 K/W (junction-to-case).

Technical Context

This device implements Infineon's 9th-generation CoolMOS™ superjunction architecture, delivering reduced R_DS(on) × Q_g figure-of-merit for improved efficiency in hard-switched and quasi-resonant converters. Its 900 V V_(BR)DSS and 50 V/ns dv/dt rating support stable operation under high-voltage transients in offline AC/DC designs.

The integrated body diode exhibits 310 ns reverse recovery time and 3.7 µC Q_rr, enabling moderate-frequency synchronous rectification in flyback secondaries. Thermal design is supported by a low 1.5 K/W R_thJC, allowing 102 W power dissipation at T_C = 25 °C with proper heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_(BR)DSS	900 V - Withstands full mains-derived DC bus voltages up to 400 V with margin for surge and ringing.
R_DS(on) max @ 25 °C	1.2 Ω - Enables low conduction loss at 2.8 A ID, critical for <100 W adapter efficiency targets.
Q_g typ	28 nC - Reduces gate drive power and switching loss in 65–130 kHz QR flyback designs.
E_AS	68 mJ - Supports single-pulse avalanche capability during overvoltage events without failure.
R_thJC	1.5 K/W - Allows direct mounting to heatsink for thermal management in compact industrial SMPS layouts.
t_r/t_f	20 ns / 40 ns - Fast switching transitions minimize overlap loss in hard-switched topologies.
V_GS(th)	2.5–3.5 V - Compatible with standard 5 V or 10 V gate drivers without level-shifting.

Pinout & Package

Package: PG-TO262 (3-pin, through-hole, isolated tab). Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source. The drain-connected metal tab provides low-inductance, high-current path and direct thermal interface to heatsink.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Gate)	Control terminal	Receives PWM signal; low 1.3 Ω gate resistance enables fast turn-on with minimal external driver strength.
Pin 2 (Drain)	High-side power node	Connected to internal die backside; electrically and thermally coupled to exposed metal tab for efficient heat transfer.
Pin 3 (Source)	Reference return path	Serves as local ground reference for gate drive; must be routed with low inductance to minimize switching oscillation.

Key Features

Feature	Design Value
Ultra-low R_DS(on) × Q_g	Enables >90% efficiency in 65–100 kHz QR flyback designs at 30–90 W output without active cooling.
Extreme dv/dt ruggedness	Rated to 50 V/ns - suppresses false triggering during high-slew-rate switching in high-noise industrial environments.
JEDEC-qualified reliability	Validated per J-STD-20/JESD22 - ensures long-term stability in consumer and industrial SMPS operating at 150 °C junction temperature.
Low E_oss and C_o(er)	23 pF effective output capacitance - reduces turn-off energy loss and improves light-load efficiency in resonant topologies.
Integrated fast-recovery diode	310 ns t_rr, 3.7 µC Q_rr - permits use in secondary-side synchronous rectification without external Schottky replacement.

Applications

PC Silverbox Power Supply

Industrial SMPS

Use Scenario: 65–100 W offline AC/DC adapter for desktop PCs and monitors using quasi-resonant flyback topology.

IC Role / Device Role / Timing Role: Primary-side high-voltage switch handling 400 V DC bus, driven by QR controller with variable frequency modulation.

Use Value: 1.2 Ω R_DS(on) and 28 nC Q_g reduce conduction and switching losses, meeting 80 PLUS Bronze efficiency requirements at 230 VAC input.

Use Scenario: 75–150 W industrial control power supply operating continuously at 60 °C ambient with wide input range.

IC Role / Device Role / Timing Role: Main switching transistor in forward converter with active clamp, requiring high avalanche tolerance and thermal robustness.

Use Value: 68 mJ E_AS and 1.5 K/W R_thJC ensure reliable operation under repetitive line surges and sustained load conditions.

Consumer TV Power Stage

LED Driver Auxiliary Supply

Use Scenario: Standby and main power stage in 43–75 inch smart TVs with dual-output SMPS (12 V/19 V).

IC Role / Device Role / Timing Role: High-side switch in asymmetric half-bridge configuration, supporting burst-mode operation at light load.

Use Value: Low 1 µA I_DSS at 900 V and 25 °C minimizes no-load power consumption below 0.5 W, satisfying Energy Star Tier 2 standby limits.

Use Scenario: Auxiliary 12 V supply for LED driver ICs and dimming controllers in commercial lighting systems.

IC Role / Device Role / Timing Role: Primary-side switch in compact flyback supplying isolated bias rails for gate drivers and communication interfaces.

Use Value: 900 V rating allows direct connection to 400 V PFC output, eliminating intermediate step-down stage and reducing BOM count.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPW90R1K2C3FKSA1	Same die, PG-TO247-3 package; higher R_thJC (0.9 K/W) but larger footprint and higher cost.	Better thermal performance in high-power (>150 W) designs where TO247 heatsinking is available.	Select when board space permits TO247 and peak power exceeds 120 W with forced-air cooling.
STP90NF03L	30 V logic-level N-channel MOSFET; not rated for >200 V operation; incompatible with 900 V breakdown requirement.	Only suitable for low-voltage DC/DC stages-not a functional substitute for offline AC/DC primary switches.	Avoid for any application requiring >400 V blocking; not a valid alternative for IPI90R1K2C3XKSA1 use cases.

Compared with IPW90R1K2C3FKSA1, the IPI90R1K2C3XKSA1 offers identical electrical specs in a smaller, lower-cost TO262 package-ideal for space-constrained 65–100 W adapters. STP90NF03L lacks voltage rating and avalanche capability, making it unsuitable for primary-side switching in offline SMPS.

Availability

IPI90R1K2C3XKSA1 is available at Aetrix Electronics and suitable for PC silverbox power supplies, industrial SMPS, consumer TV power stages, and LED driver auxiliary supplies requiring stable component supply across multi-year production cycles.

Supply support for IPI90R1K2C3XKSA1 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.

This part belongs to the CoolMOS™ C3 family-designed specifically for high-efficiency, high-reliability offline SMPS in consumer, computing, and industrial applications demanding 900 V blocking and low R_DS(on) × Q_g.

FAQ

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

The IPI90R1K2C3XKSA1 supports 3.2 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the TO262 package and requires adequate heatsinking to maintain safe junction temperature below 150 °C.

Does this MOSFET require a negative gate voltage for reliable turn-off?

No. The device has a gate threshold voltage of 2.5–3.5 V and is fully controllable with 0 V to +10 V gate drive. A negative gate voltage is not required or recommended; applying V_GS < –20 V risks gate oxide damage per absolute maximum ratings.

Can the integrated body diode replace an external Schottky in flyback secondary rectification?

No-the body diode is optimized for primary-side switching, not secondary-side rectification. Its 310 ns t_rr and 0.8–1.2 V V_SD result in higher conduction and switching losses than dedicated Schottky diodes, making it unsuitable as a synchronous rectifier replacement.

Is lead-free soldering compatible with the PG-TO262 package?

Yes. The device uses Pb-free lead plating and complies with RoHS. Wave soldering is permitted only at leads located ≥1.6 mm from the case for ≤10 s at 260 °C, as defined in the Thermal Characteristics section-reflow profiles must follow JEDEC J-STD-20 guidelines.

IPI90R1K2C3XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

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

Packaging:: Tube

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

IPI90R1K2C3XKSA1 FAQ

1.How can I place an order for IPI90R1K2C3XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPI90R1K2C3XKSA1 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 IPI90R1K2C3XKSA1 reliable?

The price and inventory of IPI90R1K2C3XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPI90R1K2C3XKSA1 is usually 5 days.

3.What payment methods are accepted for IPI90R1K2C3XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPI90R1K2C3XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPI90R1K2C3XKSA1?

IPI90R1K2C3XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPI90R1K2C3XKSA1 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 IPI90R1K2C3XKSA1?

For technical support, including IPI90R1K2C3XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPI90R1K2C3XKSA1 requirements.

6.How does Aetrix verify that IPI90R1K2C3XKSA1 is sourced from the original manufacturer or authorized distributors?

All IPI90R1K2C3XKSA1 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 IPI90R1K2C3XKSA1 meets industry standards.

7.What is the process for return or replacement of IPI90R1K2C3XKSA1?

All IPI90R1K2C3XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPI90R1K2C3XKSA1, 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 IPI90R1K2C3XKSA1 part is unused and in its original packaging.

Return procedure for IPI90R1K2C3XKSA1:

1.Submit a request within 90 days.

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

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