Infineon Technologies IDWD40E65E7XKSA1
- Part No.:
- IDWD40E65E7XKSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-247-2
- Datasheet:
-
IDWD40E65E7XKSA1.pdf
- Description:
- HOME APPLIANCES 14
- Quantity:
- Payment:

- Shipping:

Inventory:168
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Product details
Overview
IDWD40E65E7XKSA1 from Infineon is a 650 V, 40 A soft-recovery silicon power diode in PG-TO247-2-STD-NA8.8 package, engineered for high-reliability industrial and home appliance inverters. It delivers low and temperature-stable forward voltage (VF = 1.55–2.1 V), very soft/fast recovery (trr = 69.9–146 ns), and low reverse recovery current (Irrm = 14.5–26.9 A) to minimize EMI and switching losses in UPS and aircon PFC stages.
For engineers reviewing the IDWD40E65E7XKSA1 datasheet, IDWD40E65E7XKSA1 pinout, IDWD40E65E7XKSA1 application, or IDWD40E65E7XKSA1 equivalent, key selection criteria include junction temperature rating (Tvjmax = 175 °C), cosmic ray ruggedness, humidity robustness, JEDEC-qualified industrial reliability, and soft recovery behavior critical for high-efficiency 650 V converter topologies.
Technical Context
This emitter-controlled Si diode uses a tailored carrier lifetime profile to achieve soft reverse recovery with minimal oscillation and low dirr/dt (418–847 A/µs), reducing snubber stress and gate driver coupling in half-bridge configurations. Its low Qrr (0.6–2.37 µC) and Erec (0.099–0.49 mJ) directly support high-frequency operation up to 100 kHz in micro-inverters and string inverters.
The device integrates internal emitter inductance control (LE = 13 nH) and thermal resistance optimization (Rth(j-c) = 0.95 K/W), enabling stable conduction at Tc = 100 °C with IF = 49 A while maintaining Tvj ≤ 175 °C under continuous duty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 650 V - Enables use in 400 VAC rectified bus systems with 100% safety margin against transient overvoltage. |
| IF (Tc = 100 °C) | 49 A - Sustains full-rated conduction at high heatsink temperatures without derating beyond datasheet limits. |
| VF (Tvj = 175 °C) | 1.55 V - Low, stable forward drop reduces conduction loss and thermal runaway risk in parallel operation. |
| trr (Tvj = 175 °C) | 146 ns - Soft, predictable recovery minimizes voltage overshoot and EMI in fast-switching IGBT/MOSFET bridges. |
| Irrm (Tvj = 175 °C) | 26.9 A - Low peak reverse current reduces diode-induced shoot-through risk during hard commutation. |
| Tvjmax | 175 °C - Supports extended lifetime in sealed enclosures and high-ambient environments like residential aircon. |
| Rth(j-c) | 0.95 K/W - Enables efficient heat transfer to heatsink, supporting compact thermal design in space-constrained UPS modules. |
Pinout & Package
Package: PG-TO247-2-STD-NA8.8 - 3-pin outline with isolated metal tab (cathode), optimized for high-current, low-inductance mounting using M3 screw (0.6 Nm torque).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 & backside | Cathode | Primary current return path; electrically connected to metal tab for direct heatsink mounting and lowest possible thermal resistance. |
| Pin 2 | Anode | High-side connection point; designed for low-parasitic routing to IGBT collector or MOSFET drain in boost/PFC stages. |
Key Features
| Feature | Design Value |
|---|---|
| Soft recovery waveform | Controlled dirr/dt (418–847 A/µs) eliminates voltage ringing and reduces snubber component count in bridge legs. |
| Cosmic ray ruggedness | Validated against single-event burnout (SEB) in high-altitude or mission-critical industrial deployments. |
| Humidity robust design | Passes JEDEC JESD22-A110 qualification, ensuring long-term reliability in tropical residential aircon environments. |
| Pb-free & RoHS compliant | Lead plating meets EU RoHS Directive 2011/65/EU and supports lead-free reflow soldering (260 °C, 10 s). |
| JEDEC industrial qualification | Fully tested per JEDEC47/20/22 standards including HTRB, HTGB, and uHAST for 10+ year field life expectancy. |
Applications
| String Inverter | Residential UPS |
|---|---|
Use Scenario: DC-to-AC conversion stage in photovoltaic systems with 600–1000 VDC input. IC Role / Device Role / Timing Role: Freewheeling diode in boost PFC and inverter leg, handling 40 A continuous current with soft recovery to limit dv/dt stress on IGBTs. Use Value: 146 ns trr at 175 °C enables >50 kHz switching without excessive EMI filtering, improving system power density. | Use Scenario: Online UPS battery charging and inverter output stage operating in 230 VAC grid-connected mode. IC Role / Device Role / Timing Role: Output rectifier in bidirectional AC/DC converter, conducting 49 A at Tc = 100 °C with low VF drift. Use Value: 1.55 V VF at 175 °C reduces conduction loss by ~12% vs. standard 650 V diodes, extending runtime and thermal headroom. |
| Industrial Welding | Residential Aircon |
Use Scenario: High-current DC link rectification in inverter-based arc welding equipment with 100–200 A pulsed loads. IC Role / Device Role / Timing Role: Main rectifier diode in secondary-side full-wave bridge, absorbing IFSM = 149 A surge currents. Use Value: 175 °C Tvjmax and 149 A IFSM allow reliable operation under repeated short-circuit and arc-strike transients. | Use Scenario: PFC front-end in variable-speed compressor drives for split-system air conditioners. IC Role / Device Role / Timing Role: Boost diode in continuous conduction mode (CCM) PFC, operating at 25–100 kHz with low Qrr = 0.6–2.37 µC. Use Value: 0.6 µC Qrr at 25 °C cuts turn-off energy loss by 35% vs. standard ultrafast diodes, improving efficiency above 95%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar soft-recovery 650 V diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH40R06DJF | Higher VF (1.85 V typ. @ 40 A, 25 °C); trr = 75 ns; no cosmic ray validation. | Lacks humidity robustness and JEDEC industrial qualification; suitable only for non-critical commercial UPS. | Prefer when cost sensitivity outweighs reliability requirements in non-sealed indoor environments. |
| IXYS MUR4060CT | Standard ultrafast recovery (trr ≈ 50 ns), higher Irrm (32 A), no softness specification; Rth(j-c) = 1.2 K/W. | Not qualified for industrial temp cycling or humidity; limited to lower-power <2 kW aircon designs. | Select only if board-level EMI filtering is already implemented and thermal margin exceeds 20 K. |
Compared with STTH40R06DJF and IXYS MUR4060CT, IDWD40E65E7XKSA1 provides superior softness, 175 °C operation, and validated industrial ruggedness-making it the sole choice for mission-critical, high-temperature, high-humidity applications where field failure is unacceptable.
Availability
IDWD40E65E7XKSA1 is available at Aetrix Electronics and suitable for string inverter, residential UPS, and residential aircon designs requiring stable component supply, long-lifecycle assurance, and JEDEC-qualified reliability.
Supply support for IDWD40E65E7XKSA1 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 leader specializing in power, sensor, and automotive ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
IDWD40E65E7XKSA1 belongs to Infineon's Emitter Controlled Diode (ECD) 7 family, developed specifically for high-reliability 650 V industrial and white-goods inverter applications demanding soft recovery, cosmic ray immunity, and extended junction temperature capability.
FAQ
What is the maximum recommended heatsink temperature for continuous 40 A operation?
The datasheet specifies IF = 49 A at Tc = 100 °C, meaning the case (heatsink) temperature must not exceed 100 °C to sustain 40 A continuously. Exceeding this requires derating per Fig. 2 in the datasheet, with Tvj clamped at 175 °C. Thermal design must account for Rth(j-c) = 0.95 K/W and interface resistance.
Does IDWD40E65E7XKSA1 support paralleling for higher current?
Yes-its positive VF temperature coefficient (VF decreases as Tvj rises) enables stable current sharing. However, layout symmetry, matched thermal paths, and external ballasting resistors (≤5 mΩ) are required to ensure <10% current imbalance across paralleled units at 175 °C junction temperature.
Is the PG-TO247-2-STD-NA8.8 package compatible with standard TO-247-2 footprints?
Yes-the mechanical outline matches JEDEC TO-247-2 (PG-TO247-2-U01), including pin pitch (2.54 mm), tab dimensions (15.7 × 10.88 mm), and M3 mounting hole. The "NA8.8" suffix denotes nominal tab thickness of 0.88 mm, fully compatible with standard TO-247 heatsink clamps and insulators.
How does cosmic ray ruggedness impact field reliability in industrial settings?
Infineon validates this diode against single-event burnout (SEB) induced by atmospheric neutrons-critical for high-altitude installations (e.g., telecom base stations, solar farms >2000 m). Without this, latent failures can occur after months of operation due to ionizing particle strikes, especially in 650 V devices operating near breakdown.
IDWD40E65E7XKSA1 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):
- 650 V
- Current - Average Rectified (Io):
- 50A
- Voltage - Forward (Vf) (Max) @ If:
- 2.1 V @ 40 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 89 ns
- Current - Reverse Leakage @ Vr:
- 20 µA @ 650 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PG-TO247-2-2
- Operating Temperature - Junction:
- -40°C ~ 175°C
IDWD40E65E7XKSA1 FAQ
1.How can I place an order for IDWD40E65E7XKSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDWD40E65E7XKSA1 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 IDWD40E65E7XKSA1 reliable?
The price and inventory of IDWD40E65E7XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDWD40E65E7XKSA1 is usually 5 days.
3.What payment methods are accepted for IDWD40E65E7XKSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDWD40E65E7XKSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDWD40E65E7XKSA1?
IDWD40E65E7XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDWD40E65E7XKSA1 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 IDWD40E65E7XKSA1?
For technical support, including IDWD40E65E7XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDWD40E65E7XKSA1 requirements.
6.How does Aetrix verify that IDWD40E65E7XKSA1 is sourced from the original manufacturer or authorized distributors?
All IDWD40E65E7XKSA1 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 IDWD40E65E7XKSA1 meets industry standards.
7.What is the process for return or replacement of IDWD40E65E7XKSA1?
All IDWD40E65E7XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDWD40E65E7XKSA1, 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 IDWD40E65E7XKSA1 part is unused and in its original packaging.
Return procedure for IDWD40E65E7XKSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDWD40E65E7XKSA1 Tags

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