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Home > Products > Discrete Semiconductor Products > Transistors > IGBTs > Single IGBTs

Infineon Technologies IKW40N65F5FKSA1

Name: IKW40N65F5FKSA1
Brand: Infineon Technologies
SKU: IKW40N65F5FKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IKW40N65F5FKSA1

Manufacturer:: Infineon Technologies

Category:: Single IGBTs

Package:: TO-247-3

Datasheet:: IKW40N65F5FKSA1.pdf

Description:: IGBT 650V 74A TO247-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IKW40N65F5FKSA1 from Infineon is a 650V, 40A high-speed TRENCHSTOP™ 5 IGBT copacked with a RAPID 1 fast/soft antiparallel diode in a PG-TO247-3 package. It delivers 1.6 V V_CE(sat) at 40 A and 25°C, supports 175°C maximum junction temperature, and achieves 60 ns diode reverse recovery time at 20 A/25°C - enabling high-efficiency hard-switching in solar converters and UPS systems.

For engineers reviewing the IKW40N65F5FKSA1 datasheet, IKW40N65F5FKSA1 pinout, IKW40N65F5FKSA1 application, or IKW40N65F5FKSA1 equivalent, key selection criteria include its low Q_G (95 nC), fast switching energy (E_ts = 0.46 mJ @ 20 A), integrated diode softness, and JEDEC-qualified industrial reliability for mid-to-high-frequency power conversion.

Technical Context

This IGBT employs TRENCHSTOP™ 5 trench-gate field-stop technology optimized for reduced conduction and switching losses simultaneously. Its integrated RAPID 1 diode features controlled reverse recovery (Q_rr = 0.45 µC, t_rr = 60 ns) and low peak reverse recovery current (I_rrm = 12.4 A) to minimize voltage overshoot and EMI in bridge-leg configurations.

The device operates with gate-emitter threshold voltage of 4.0 V (typ.), supports ±20 V DC and ±30 V transient V_GE, and maintains stable gain (g_fs = 50 S) across temperature - enabling robust gate drive design for resonant and hard-switched topologies up to 100 kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CE	650 V - Enables use in 400 V DC bus systems with 150 V margin for transients and ringing.
I_C	40 A continuous - Rated for sustained conduction at 100°C case temperature without derating.
V_CE(sat)	1.6 V @ 40 A, 25°C - Reduces conduction loss to ~64 W at full load, improving thermal headroom.
E_ts	0.46 mJ @ 400 V, 20 A - Low total switching energy enables efficient operation at 50–100 kHz switching frequencies.
t_rr (diode)	60 ns @ 20 A, 25°C - Fast, soft recovery minimizes commutation losses and dv/dt-induced shoot-through risk.
R_th(j-c)	0.60 K/W (IGBT) - Allows 255 W power dissipation at 25°C case, supporting compact heatsink designs.
T_vj(max)	175°C - Enables high-temperature operation in sealed or high-ambient environments without derating.

Pinout & Package

IKW40N65F5FKSA1 uses the PG-TO247-3 package with isolated mounting screw hole and backside collector connection. The package provides low-inductance layout, mechanical robustness for high-vibration environments, and compatibility with standard TO-247 heatsink clamps.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Gate	Control terminal requiring <100 nA leakage; driven by 15 V logic-level gate driver with 15 Ω series resistance.
Pin 2	Collector	Main high-side power terminal; electrically tied to backside metal for low-inductance high-current path.
Pin 3	Emitter	Power return and reference node for gate drive; internal emitter inductance is 13 nH (measured 5 mm from case).

Key Features

Feature	Design Value
Integrated RAPID 1 diode	Soft reverse recovery (dirr/dt = –280 A/µs) reduces EMI and stress on complementary switch in half-bridge.
TRENCHSTOP™ 5 technology	Optimized field-stop layer and trench gate reduce Q_G to 95 nC and improve trade-off between V_CE(sat) and switching speed.
JEDEC qualification	Validated for industrial power control applications per AEC-Q101 stress test conditions (excluding automotive temp range).
Pb-free & RoHS compliant	Lead plating meets EU RoHS Directive 2011/65/EU and IPC-J-STD-609A Class 1 moisture sensitivity.

Applications

Solar Inverters

Uninterruptible Power Supplies

Use Scenario: Three-phase string inverters converting DC from photovoltaic arrays to grid-synchronized AC.

IC Role / Device Role / Timing Role: High-side IGBT in NPC or T-type three-level inverter leg, switching at 16–32 kHz with sinusoidal PWM.

Use Value: Low V_CE(sat) and soft diode recovery reduce system-level conduction and commutation losses by >8% versus prior-generation IGBTs.

Use Scenario: Online double-conversion UPS delivering clean 50/60 Hz output during mains failure.

IC Role / Device Role / Timing Role: Inverter-stage IGBT in full-bridge output stage, operating in hard-switched mode with 5–10 kHz carrier frequency.

Use Value: 175°C junction rating allows sustained overload capability (120% for 10 s) without thermal shutdown under ambient >60°C.

Industrial Welding Converters

Motor Drive Inverters

Use Scenario: IGBT-based inverter for arc welding power supplies requiring precise current regulation and fast response.

IC Role / Device Role / Timing Role: Primary switching device in primary-side DC-DC converter (LLC or phase-shifted full-bridge) feeding inverter stage.

Use Value: Low Q_G and fast turn-on (t_d(on) = 19 ns) enable tight current-loop bandwidth (>10 kHz) for dynamic arc control.

Use Scenario: Variable-frequency drives for HVAC compressors and pumps operating in harsh factory environments.

IC Role / Device Role / Timing Role: Output stage IGBT in 3-phase inverter module driving PMSM/IM loads at 2–8 kHz PWM frequency.

Use Value: RAPID 1 diode's low Q_rr (0.45 µC) suppresses freewheeling current oscillation, reducing audible noise and bearing currents.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed IGBT applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IKW40N65ES5	Same 650 V/40 A rating but uses TRENCHSTOP™ 5 Enhanced Speed (ES5) process; lower V_CE(sat) (1.55 V) but higher E_off (0.13 mJ vs. 0.10 mJ).	Better conduction efficiency at light loads; less suitable for high-frequency resonant topologies due to slower fall time (18 ns vs. 16 ns).	Select when conduction loss dominates system efficiency and switching frequency ≤30 kHz.
FGA40N65SMD	ON Semiconductor part; 650 V/40 A, V_CE(sat) = 1.7 V, Q_G = 110 nC, t_rr = 90 ns - higher losses and slower diode recovery.	Limited to lower-frequency (<20 kHz) industrial motor drives where cost sensitivity outweighs efficiency targets.	Select only if cross-supply sourcing is required and thermal margin exceeds 25°C.

Compared with IKW40N65ES5 and FGA40N65SMD, IKW40N65F5FKSA1 offers the best balance of low conduction loss, fast soft switching, and diode recovery performance - making it optimal for solar inverters and UPS systems demanding both efficiency and reliability at 50–100 kHz.

Availability

IKW40N65F5FKSA1 is available at Aetrix Electronics and suitable for solar converters, uninterruptible power supplies, and industrial welding converters requiring stable component supply, long-term lifecycle support, and traceable manufacturing origin.

Supply support for IKW40N65F5FKSA1 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 semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

IKW40N65F5FKSA1 belongs to the TRENCHSTOP™ 5 High-Speed Switching Series, designed specifically for high-efficiency, medium-frequency power conversion in solar, UPS, and industrial motor control applications.

FAQ

What gate drive voltage is recommended for IKW40N65F5FKSA1?

Infineon specifies 15 V nominal gate-emitter voltage (V_GE) for full saturation and minimal V_CE(sat). The device supports ±20 V DC and ±30 V transient ratings. Driving below 12 V risks incomplete turn-on and increased conduction loss; exceeding +20 V does not improve performance and risks gate oxide stress over time.

Does IKW40N65F5FKSA1 require an external freewheeling diode?

No - IKW40N65F5FKSA1 integrates a co-packaged RAPID 1 antiparallel diode rated for 36 A continuous forward current at 25°C. This diode is optimized for soft recovery and low Q_rr, eliminating need for discrete diodes in standard inverter leg configurations.

How does thermal resistance differ between IGBT and diode sections?

The IGBT section has R_th(j-c) = 0.60 K/W, while the diode section has R_th(j-c) = 1.80 K/W - reflecting higher power dissipation density in the diode die. System thermal design must account for this asymmetry, especially in unbalanced conduction duty cycles where diode losses dominate.

Is IKW40N65F5FKSA1 suitable for use in automotive traction inverters?

No - although qualified to JEDEC industrial standards and rated for 175°C junction temperature, IKW40N65F5FKSA1 is not AEC-Q101 qualified for automotive under-hood use. It lacks automotive-specific screening (e.g., HTOL, UHAST) and is intended for industrial power applications only.

IKW40N65F5FKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TrenchStop®

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Active

IGBT Type:: -

Voltage - Collector Emitter Breakdown (Max):: 650 V

Current - Collector (Ic) (Max):: 74 A

Current - Collector Pulsed (Icm):: 120 A

Vce(on) (Max) @ Vge, Ic:: 2.1V @ 15V, 40A

Power - Max:: 255 W

Switching Energy:: 360µJ (on), 100µJ (off)

Input Type:: Standard

Gate Charge:: 95 nC

Td (on/off) @ 25°C:: 19ns/160ns

Test Condition:: 400V, 20A, 15Ohm, 15V

Reverse Recovery Time (trr):: 60 ns

Operating Temperature:: -40°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO247-3

IKW40N65F5FKSA1 FAQ

1.How can I place an order for IKW40N65F5FKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IKW40N65F5FKSA1 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 IKW40N65F5FKSA1 reliable?

The price and inventory of IKW40N65F5FKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IKW40N65F5FKSA1 is usually 5 days.

3.What payment methods are accepted for IKW40N65F5FKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IKW40N65F5FKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IKW40N65F5FKSA1?

IKW40N65F5FKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IKW40N65F5FKSA1 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 IKW40N65F5FKSA1?

For technical support, including IKW40N65F5FKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IKW40N65F5FKSA1 requirements.

6.How does Aetrix verify that IKW40N65F5FKSA1 is sourced from the original manufacturer or authorized distributors?

All IKW40N65F5FKSA1 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 IKW40N65F5FKSA1 meets industry standards.

7.What is the process for return or replacement of IKW40N65F5FKSA1?

All IKW40N65F5FKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IKW40N65F5FKSA1, 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 IKW40N65F5FKSA1 part is unused and in its original packaging.

Return procedure for IKW40N65F5FKSA1:

1.Submit a request within 90 days.

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

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