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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Infineon Technologies IDWD40E120D7XKSA1

Name: IDWD40E120D7XKSA1
Brand: Infineon Technologies
SKU: IDWD40E120D7XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IDWD40E120D7XKSA1

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: TO-247-2

Datasheet:: IDWD40E120D7XKSA1.pdf

Description:: DIODE GEN PURP 1200V 67A TO247-2

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Product details

Overview

IDWD40E120D7XKSA1 from Infineon is a 1200 V, 40 A ultrafast soft-recovery emitter-controlled diode in PG-TO247-2-STD package, designed for high-efficiency power conversion in industrial and home appliance inverters. It delivers low forward voltage (VF = 2.3–3.0 V), ultrafast reverse recovery time (trr = 115–175 ns), low Qrr (0.8–2.4 µC), and operates up to 175 °C junction temperature - enabling compact, thermally robust designs in string inverters and EV charging systems.

For engineers reviewing the IDWD40E120D7XKSA1 datasheet, IDWD40E120D7XKSA1 pinout, IDWD40E120D7XKSA1 application, or IDWD40E120D7XKSA1 equivalent, key selection criteria include its 1200 V VRRM rating, soft recovery behavior under high di/dt (up to 260 A/µs), low Erec (0.25–0.85 mJ), and validated industrial qualification per JEDEC47/20/22.

Technical Context

This emitter-controlled diode uses Infineon's proprietary "7 diode" structure to achieve soft, ultrafast reverse recovery with minimal voltage overshoot and oscillation during commutation with IGBTs like IKZA40N120CH7. Its design targets low dynamic losses and high reliability in hard-switched PFC and inverter legs.

The device features low internal emitter inductance (LE = 13 nH), optimized thermal resistance (Rth(j-c) = 0.6–0.78 K/W), and humidity-robust packaging - all supporting stable operation at Tc = 100 °C with IF = 42 A continuous current and Ptot = 97 W.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	1200 V - Enables use in 1000 V DC-link systems with 20% safety margin against transients.
IF (Tc = 25 °C)	67 A - Supports short-term overload capability beyond nominal 40 A rating.
VF @ 40 A, 175 °C	2.3 V - Reduces conduction loss and thermal stress in high-temp operation.
trr @ 40 A, 25 °C	155 ns - Minimizes switching loss and EMI in 16–20 kHz inverter stages.
Qrr @ 40 A, 25 °C	1.15 µC - Low charge reduces IGBT turn-on loss and gate driver stress.
Tvjmax	175 °C - Allows derated operation in sealed enclosures without active cooling.
Rth(j-c)	0.6–0.78 K/W - Enables direct heatsink mounting with predictable thermal path.

Pinout & Package

Package: PG-TO247-2-STD (standard 2-pin TO-247 variant with isolated backside cathode). Case type: ISOTOP-compatible outline per Infineon PG-TO247-2-STD-NA8.8 specification.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 & Backside	Cathode	Electrically common cathode terminal; backside metal serves as primary heat path and high-current return node.
Pin 2	Anode	Single anode connection optimized for low-inductance layout; no auxiliary terminals or sense pins.

Key Features

Feature	Design Value
Emitter-controlled 7-diode architecture	Enables simultaneous optimization of VF, trr, and softness - not achievable with standard PN or PiN diodes.
Soft recovery (low Irrm, low di/dt sensitivity)	Peak reverse recovery current limited to 19–28 A across temp/current range, reducing snubber stress.
Pb-free, RoHS-compliant plating	Meets global environmental compliance without compromising solder joint reliability or thermal cycling performance.
JEDEC47/20/22 industrial qualification	Validated for 10+ year field life in demanding environments including thermal shock, HAST, and temperature cycling.
Humidity robust design	Passes 1000-hr 85 °C/85% RH testing - critical for heat pump and outdoor EVSE applications.

Applications

String Inverter

EV Charging Station

Use Scenario: DC-link freewheeling diode in 3-phase IGBT-based inverter stage operating at 1000 V DC input and 16–20 kHz switching frequency.

IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss, soft-commutated current path during IGBT turn-off.

Use Value: 1.15 µC Qrr and 155 ns trr reduce IGBT turn-on loss by ~18% vs. standard fast diodes, lowering system thermal load.

Use Scenario: Output rectification and freewheeling in liquid-cooled 22 kW AC-to-DC OBC modules with 1000 V DC bus.

IC Role / Device Role / Timing Role: High-reliability freewheeling diode in interleaved boost PFC and inverter output stage.

Use Value: 175 °C Tvjmax and humidity-robust construction ensure >15-year lifetime in sealed, high-humidity EVSE enclosures.

Heat Pump Inverter

Industrial Motor Drive

Use Scenario: DC-link diode in variable-speed compressor inverter operating continuously at 60–80 °C ambient with frequent start-stop cycles.

IC Role / Device Role / Timing Role: Main freewheeling diode handling 40 A RMS current with peak surges up to 185 A (IFSM).

Use Value: Soft recovery (Irrm ≤ 28 A) prevents voltage spikes that could trigger IGBT desaturation protection during rapid load changes.

Use Scenario: Snubberless inverter leg diode in 400–690 V AC industrial drives with 10–15 kHz PWM and high di/dt demands.

IC Role / Device Role / Timing Role: Commutation diode paired with 1200 V IGBTs in 3-level NPC topologies.

Use Value: 13 nH internal emitter inductance minimizes voltage overshoot during 1000 A/µs di/dt events, eliminating need for external RC snubbers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast soft-recovery diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH6012W	1200 V, 60 A, VF = 2.7 V @ 60 A, trr = 170 ns, Qrr = 2.3 µC - higher conduction loss, less soft recovery.	Validated in solar microinverters but not qualified to JEDEC47 industrial standards.	Prefer where cost sensitivity outweighs thermal margin and long-term reliability requirements.
IXYS MDD132-16N1	1600 V, 132 A, VF = 2.45 V @ 100 A, trr = 220 ns, Qrr = 4.8 µC - larger die, slower, higher loss.	Designed for legacy 600–1200 V motor drives; lacks humidity robustness and softness optimization.	Consider only when 1600 V rating or paralleling capability is mandatory; otherwise over-specified.

Compared with STTH6012W and MDD132-16N1, IDWD40E120D7XKSA1 offers superior softness (lower Irrm, lower Erec), tighter thermal resistance control (0.6 K/W), and industrial-grade qualification - making it optimal for next-gen energy infrastructure where efficiency, size, and lifetime are co-constrained.

Availability

IDWD40E120D7XKSA1 is available at Aetrix Electronics and suitable for string inverters, EV charging stations, and heat pump inverters requiring stable component supply, long-lifecycle support, and traceable industrial-grade sourcing.

Supply support for IDWD40E120D7XKSA1 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, with leadership in automotive, industrial, and renewable energy markets.

IDWD40E120D7XKSA1 belongs to Infineon's "EmCon" emitter-controlled diode product line, engineered specifically for high-efficiency, high-reliability power conversion in 1000 V-class renewable energy and e-mobility systems.

FAQ

Is IDWD40E120D7XKSA1 pin-compatible with standard TO-247 diodes?

Yes - it uses the PG-TO247-2-STD mechanical outline (JEDEC TO-247AC variant) with Pin 1 = cathode and Pin 2 = anode. The isolated backside cathode allows direct heatsink mounting without insulating pads, unlike some competing TO-247 packages with electrically active case.

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies IF = 42 A at Tc = 100 °C, with Ptot = 97 W. For reliable 24/7 operation, Infineon recommends limiting Tc to ≤ 95 °C to maintain ≥ 80% of rated current and ensure >10-year lifetime under thermal cycling stress.

Does this diode require a gate resistor or external snubber network?

No - its soft recovery characteristics (low Irrm, low di/dt sensitivity, and 13 nH internal inductance) eliminate the need for external snubbers in typical 16–20 kHz IGBT inverter applications. Gate resistors are not applicable, as it is a passive diode with no control terminal.

How does humidity robustness impact real-world deployment?

Validated per JESD22-A110 (HAST) and JESD22-A101 (85°C/85% RH), the device maintains leakage current < 480 µA at 175 °C and shows no parameter shift after 1000 hours - directly enabling use in unventilated heat pump cabinets and outdoor EVSE enclosures without conformal coating.

IDWD40E120D7XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-247-2

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 1200 V

Current - Average Rectified (Io):: 67A

Voltage - Forward (Vf) (Max) @ If:: 3 V @ 40 A

Speed:: Fast Recovery =< 500ns, > 5A (Io)

Reverse Recovery Time (trr):: 155 ns

Current - Reverse Leakage @ Vr:: 20 µA @ 1200 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO247-2-2

Operating Temperature - Junction:: -40°C ~ 175°C

IDWD40E120D7XKSA1 FAQ

1.How can I place an order for IDWD40E120D7XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IDWD40E120D7XKSA1 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 IDWD40E120D7XKSA1 reliable?

The price and inventory of IDWD40E120D7XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDWD40E120D7XKSA1 is usually 5 days.

3.What payment methods are accepted for IDWD40E120D7XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDWD40E120D7XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IDWD40E120D7XKSA1?

IDWD40E120D7XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IDWD40E120D7XKSA1 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 IDWD40E120D7XKSA1?

For technical support, including IDWD40E120D7XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDWD40E120D7XKSA1 requirements.

6.How does Aetrix verify that IDWD40E120D7XKSA1 is sourced from the original manufacturer or authorized distributors?

All IDWD40E120D7XKSA1 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 IDWD40E120D7XKSA1 meets industry standards.

7.What is the process for return or replacement of IDWD40E120D7XKSA1?

All IDWD40E120D7XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDWD40E120D7XKSA1, 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 IDWD40E120D7XKSA1 part is unused and in its original packaging.

Return procedure for IDWD40E120D7XKSA1:

1.Submit a request within 90 days.

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

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