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

Infineon Technologies IHW40T120FKSA1

Name: IHW40T120FKSA1
Brand: Infineon Technologies
SKU: IHW40T120FKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IHW40T120FKSA1

Manufacturer:: Infineon Technologies

Category:: Single IGBTs

Package:: TO-247-3

Datasheet:: IHW40T120FKSA1.pdf

Description:: IGBT 1200V 75A 270W TO247-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IHW40T120FKSA1 from Infineon Technologies is a 1200 V, 40 A TrenchStop® and Fieldstop IGBT with integrated soft-recovery EmCon™ HE anti-parallel diode in PG-TO247-3 package. It delivers 1.8 V V_CE(sat) at 25°C, 10 µs short-circuit withstand time, and 0.45 K/W IGBT junction-to-case thermal resistance. Designed specifically for induction heating and resonant soft-switching topologies, it enables high-efficiency, low-EMI operation in high-frequency power converters.

For engineers reviewing the IHW40T120FKSA1 datasheet, IHW40T120FKSA1 pinout, IHW40T120FKSA1 application, or IHW40T120FKSA1 equivalent, key selection criteria include its positive V_CE(sat) temperature coefficient for stable parallel operation, 195 ns diode t_rr at 25°C, JEDEC-qualified ruggedness, and optimized inverse diode behavior for ZVS/ZCS circuits.

Technical Context

This IGBT employs TrenchStop® gate trench geometry and Fieldstop® drift layer design to achieve tight parameter distribution and temperature-stable conduction across –40°C to +150°C junction range. Its integrated EmCon™ HE diode features low Q_rr (1880 nC at 25°C) and soft recovery (t_rr = 195 ns), minimizing voltage overshoot and EMI during turn-off.

The device supports hard-switched and soft-switched operation up to 100 kHz, with total switching energy of 6.5 mJ at 25°C and 10.4 mJ at 150°C under standard test conditions (V_CC = 600 V, I_C = 40 A, R_G = 15 Ω). Gate charge is 203 nC, and internal gate resistor is 6 Ω.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CE	1200 V - rated blocking voltage for industrial DC-link applications up to 900 V bus
I_C	40 A - continuous collector current at T_C = 100°C, enabling compact heatsink sizing
V_CE(sat)	1.8 V @ T_j = 25°C - low conduction loss improves efficiency in medium-frequency inverters
t_SC	10 µs - short-circuit withstand capability supports robust protection circuit design
R_thJC (IGBT)	0.45 K/W - enables high-power density thermal management in TO-247 packages
Q_rr	1880 nC @ T_j = 25°C - low reverse recovery charge reduces diode switching losses and snubber stress
E_ts	6.5 mJ @ T_j = 25°C - total switching energy defines minimum dead-time and gate drive strength requirements

Pinout & Package

Package: PG-TO247-3 - industry-standard 3-pin through-hole power package with isolated tab, rated for 260°C soldering (10 s, 1.6 mm from case).

Pin/Terminal	Circuit Role	Design Meaning
Collector (C)	Main high-side power terminal	Connected to DC-link positive; carries full load current and withstands 1200 V transients
Gate (G)	Control input	Receives ±20 V logic-level drive; internal 6 Ω resistor simplifies external gate driver design
Emitter (E)	Power return and reference node	Serves as common reference for gate drive and current sensing; low-inductance path critical for EMI control

Key Features

Feature	Design Value
TrenchStop® + Fieldstop® IGBT structure	Enables tight V_CE(sat) distribution (±0.1 V) and stable +2.5 mV/°C tempco for reliable paralleling
EmCon™ HE anti-parallel diode	Delivers soft recovery (dI/dt < 800 A/µs) and 300 ns t_rr at 150°C, reducing voltage spikes in ZVS circuits
Positive V_CE(sat) temperature coefficient	Ensures current sharing stability when multiple devices operate in parallel without active balancing
JEDEC J-STD-020 qualified	Validated for reflow and long-term reliability in industrial environments per moisture sensitivity level MSL 1
Low EMI profile	Result of controlled diode recovery and reduced C_iss/C_rss ratio (2500 pF / 110 pF), easing EMI filter design

Applications

Induction Heating Systems

Resonant DC-DC Converters

Use Scenario: Medium-frequency (20–100 kHz) series-resonant inverters driving cooking hobs or industrial metal heaters.

IC Role / Device Role / Timing Role: Main switching device in half-bridge topology; operates in zero-voltage switching (ZVS) mode using diode reverse recovery characteristics.

Use Value: Low Q_rr and soft recovery reduce turn-off losses by >35% vs. standard fast diodes, enabling >95% system efficiency at 5 kW.

Use Scenario: Isolated LLC resonant converters for telecom rectifiers and EV charging PSUs.

IC Role / Device Role / Timing Role: High-side switch in asymmetrical half-bridge; leverages 10 µs short-circuit rating for fault tolerance during transient overloads.

Use Value: 0.45 K/W R_thJC allows 40 A continuous operation at T_C = 100°C, supporting compact, fanless designs.

UPS Inverters

Motor Drive Inverters (Industrial)

Use Scenario: Online double-conversion UPS systems requiring high reliability and low THD output.

IC Role / Device Role / Timing Role: Output stage IGBT in three-phase inverter; switches at 8–16 kHz with sinusoidal PWM modulation.

Use Value: Tight V_CE(sat) distribution ensures balanced phase currents and reduces thermal derating margin by 15%.

Use Scenario: Vector-controlled 3-phase inverters for pumps, compressors, and conveyors (0.75–15 kW).

IC Role / Device Role / Timing Role: Main power switch in 6-pack module configuration; handles regenerative braking energy via integrated diode.

Use Value: EmCon™ diode's 25.3 A I_rrm at 150°C supports safe energy recirculation without external freewheeling paths.

Equivalent & Alternatives

The following parts are listed as comparable options for similar IGBT + integrated diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IXYS IXGN40N120B3	Higher V_CE(sat) (2.2 V), no integrated diode, requires external ultrafast diode	Requires separate diode layout and gate drive coordination; higher board area and BOM count	Select when discrete diode optimization is needed or when legacy gate drive compatibility is required
STMicroelectronics STGW40H12DF2	Lower t_SC (6 µs), higher Q_rr (2500 nC), same package and V_CE/I_C ratings	Less suitable for high-reliability ZVS induction heating due to harder diode recovery and reduced short-circuit margin	Select for cost-sensitive motor drives where 6 µs t_SC meets protection timing budgets

Compared with IXGN40N120B3 and STGW40H12DF2, IHW40T120FKSA1 provides superior soft-switching performance via its monolithic EmCon™ diode and 10 µs short-circuit rating-critical for resonant topologies where diode recovery dynamics directly impact efficiency and EMI.

Availability

IHW40T120FKSA1 is available at Aetrix Electronics and suitable for induction heating systems, resonant DC-DC converters, and industrial UPS inverters requiring stable component supply, JEDEC-qualified ruggedness, and low-EMI switching behavior.

Supply support for IHW40T120FKSA1 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 semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

The Soft Switching Series-including IHW40T120FKSA1-is engineered for high-frequency resonant converters and induction heating, emphasizing diode softness, thermal stability, and short-circuit robustness over general-purpose switching.

FAQ

What is the maximum recommended gate resistor value for reliable turn-on in soft-switching applications?

A 15 Ω external gate resistor is validated in the datasheet for standard dynamic testing (V_GE = 0/15 V, I_C = 40 A). For ZVS operation, values between 10 Ω and 25 Ω balance switching speed and voltage overshoot; exceeding 35 Ω increases turn-on delay beyond 52 ns at 150°C, risking overlap conduction loss.

Does the integrated diode support bidirectional current flow in bridge configurations?

Yes-the EmCon™ HE diode is co-packaged anti-parallel to the IGBT and rated for 31 A continuous forward current at T_C = 25°C. It conducts regenerative energy during motor drive braking and provides freewheeling paths in inverter leg commutation, with verified soft recovery down to –55°C storage temperature.

How does the 10 µs short-circuit withstand time translate to practical protection design?

The 10 µs rating assumes V_GE = 15 V, V_CC ≤ 1200 V, and T_j ≤ 150°C. Protection circuits must detect overcurrent and disable gate drive within ≤8 µs to maintain safety margin. Infineon recommends desaturation detection with <1 µs response plus 1 µs blanking time to avoid false triggering during turn-on transients.

Is the PG-TO247-3 package lead-free and RoHS compliant?

Yes-IHW40T120FKSA1 uses Pb-free lead plating and complies fully with RoHS Directive 2011/65/EU. The package passes JEDEC J-STD-020 reflow profiles up to 260°C (10 s), and its thermal pad is designed for solder paste volume control to ensure void-free mounting and optimal R_thJC performance.

IHW40T120FKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TrenchStop®

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Obsolete

IGBT Type:: Trench Field Stop

Voltage - Collector Emitter Breakdown (Max):: 1200 V

Current - Collector (Ic) (Max):: 75 A

Current - Collector Pulsed (Icm):: 105 A

Vce(on) (Max) @ Vge, Ic:: 2.3V @ 15V, 40A

Power - Max:: 270 W

Switching Energy:: 6.5mJ

Input Type:: Standard

Gate Charge:: 203 nC

Td (on/off) @ 25°C:: 48ns/480ns

Test Condition:: 600V, 40A, 15Ohm, 15V

Reverse Recovery Time (trr):: 195 ns

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO247-3-1

IHW40T120FKSA1 FAQ

1.How can I place an order for IHW40T120FKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IHW40T120FKSA1 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 IHW40T120FKSA1 reliable?

The price and inventory of IHW40T120FKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IHW40T120FKSA1 is usually 5 days.

3.What payment methods are accepted for IHW40T120FKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IHW40T120FKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IHW40T120FKSA1?

IHW40T120FKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IHW40T120FKSA1 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 IHW40T120FKSA1?

For technical support, including IHW40T120FKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IHW40T120FKSA1 requirements.

6.How does Aetrix verify that IHW40T120FKSA1 is sourced from the original manufacturer or authorized distributors?

All IHW40T120FKSA1 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 IHW40T120FKSA1 meets industry standards.

7.What is the process for return or replacement of IHW40T120FKSA1?

All IHW40T120FKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IHW40T120FKSA1, 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 IHW40T120FKSA1 part is unused and in its original packaging.

Return procedure for IHW40T120FKSA1:

1.Submit a request within 90 days.

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

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