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Infineon Technologies IDWD50E120D7XKSA1
- Part No.:
- IDWD50E120D7XKSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- TO-247-2
- Datasheet:
-
IDWD50E120D7XKSA1.pdf
- Description:
- DIODE GEN PURP 1200V 81A TO247-2
- Quantity:
- Payment:
- Shipping:
Inventory:230
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Product details
Overview
IDWD50E120D7XKSA1 from Infineon is a 1200 V, 50 A ultrafast soft-recovery emitter-controlled diode in TO-247-2 package, designed as a freewheeling/anti-parallel diode for high-voltage IGBT modules in industrial inverters and heat pump PFC stages. It delivers VF = 2.3–3.0 V at 50 A, trr = 120–200 ns, Qrr = 1.05–3.6 µC, and operates up to TJ = 175 °C.
For engineers reviewing the IDWD50E120D7XKSA1 datasheet, IDWD50E120D7XKSA1 pinout, IDWD50E120D7XKSA1 application, or IDWD50E120D7XKSA1 equivalent, key selection criteria include reverse recovery charge (Qrr), softness factor (Irrm/trr), junction-to-case thermal resistance (0.51–0.66 K/W), and industrial qualification per JEDEC47/20/22.
Technical Context
This diode employs Infineon's Emitter Controlled 7 (EC7) technology to achieve low conduction loss and controlled reverse recovery dynamics without snubbers. Its soft recovery minimizes voltage overshoot and EMI in hard-switched topologies like three-phase bridge rectifiers and boost PFC circuits.
The device is optimized for co-packaging with 1200 V IGBTs (e.g., IKY50N120CH7), featuring matched thermal expansion, low internal inductance (LE = 13 nH), and robust humidity resistance-critical for outdoor EV charging stations and residential heat pumps operating across -40 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - supports DC-link voltages up to 1000 V in string inverters and EV chargers |
| IF (rated) | 50 A continuous - defines thermal design basis at Tc = 100 °C with 114 W dissipation |
| VF @ 50 A | 2.3–3.0 V - directly impacts conduction loss and system efficiency at full load |
| trr @ 50 A | 120–200 ns - determines switching loss contribution and gate driver stress in IGBT half-bridges |
| Qrr @ 50 A | 1.05–3.6 µC - critical for EMI filtering sizing and snubberless operation in high-di/dt applications |
| Tvjmax | 175 °C - enables compact heatsink designs and extended lifetime under sustained overload |
| Rth(j-c) | 0.51–0.66 K/W - quantifies thermal path efficiency from die to heatsink mounting surface |
Pinout & Package
Package: PG-TO247-2-STD-NA8.8 (TO-247-2 variant with standard leadframe, 8.8 mm lead pitch). Case is electrically connected to cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 & Backside | Cathode | Main current return path; electrically tied to case for low-inductance mounting to heatsink |
| Pin 2 | Anode | Forward current input terminal; isolated from case for flexible PCB layout and thermal decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Emitter Controlled 7 (EC7) structure | Enables precise control of carrier lifetime for consistent soft recovery across temperature and current |
| Soft recovery (low Irrm/trr ratio) | Reduces voltage spikes and EMI generation during turn-off, eliminating need for RC snubbers |
| Pb-free RoHS-compliant plating | Meets global environmental compliance requirements without compromising solder joint reliability |
| JEDEC47/20/22 industrial qualification | Validated for 15+ year field life in harsh environments including thermal cycling and humidity exposure |
Applications
| String Inverter | EV Charging Station |
|---|---|
Use Scenario: DC-link freewheeling diode in 1000 V-class three-phase NPC or T-type inverters for solar farms. IC Role / Device Role / Timing Role: Anti-parallel diode paired with 1200 V IGBTs, conducting during dead-time and inductive energy recirculation. Use Value: Low Qrr and soft recovery reduce switching losses by ≥15% vs. standard FREDs, improving inverter efficiency at 20 kHz switching. | Use Scenario: Boost PFC stage in 22 kW AC Level 2 EV charger with 900 V DC bus. IC Role / Device Role / Timing Role: High-frequency rectifier handling 50 A RMS input current with fast zero-crossing recovery. Use Value: 175 °C max junction temperature allows derating margin for sealed enclosure thermal management without forced air. |
| Heat Pump Inverter | Industrial Motor Drive |
Use Scenario: Regenerative braking path in variable-speed compressor drives for residential heat pumps. IC Role / Device Role / Timing Role: Bidirectional energy return diode in inverter leg, managing reactive power during deceleration. Use Value: Humidity-robust packaging ensures long-term reliability in condensing indoor environments without conformal coating. | Use Scenario: Snubberless IGBT clamping in 400–690 V AC drive output stages for HVAC and pump systems. IC Role / Device Role / Timing Role: Freewheeling diode absorbing inductive kickback from motor windings during PWM transitions. Use Value: Low LE (13 nH) and matched thermal coefficient minimize parasitic oscillation and thermal mismatch failure modes. |
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 |
|---|---|---|---|
| STTH5012W | 1200 V, 50 A, VF ≈ 2.7 V, trr ≈ 180 ns, Qrr ≈ 3.2 µC - higher Qrr and no EC7 softness optimization | Limited to lower-di/dt applications; requires external snubber in >10 kHz inverters | Lower cost but increases system-level EMI filter size and thermal design complexity |
| IXYS MDD50-12N1 | 1200 V, 50 A, VF ≈ 2.5 V, trr ≈ 140 ns, Qrr ≈ 2.1 µC - soft recovery verified, but not JEDEC-qualified for industrial use | Suitable for commercial-grade equipment; not recommended for outdoor or mission-critical deployments | Acceptable for cost-sensitive consumer appliances but lacks humidity robustness and lifetime validation |
Compared with STTH5012W and MDD50-12N1, IDWD50E120D7XKSA1 provides superior softness (lower Irrm/trr), JEDEC-validated industrial reliability, and lower thermal resistance-enabling smaller heatsinks and snubberless designs in demanding 1200 V systems.
Availability
IDWD50E120D7XKSA1 is available at Aetrix Electronics and suitable for string inverters, EV charging stations, and heat pump inverters requiring stable component supply across multi-year production cycles.
Supply support for IDWD50E120D7XKSA1 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.
IDWD50E120D7XKSA1 belongs to Infineon's Emitter Controlled Diode (EC7) product line, engineered specifically for high-efficiency, high-reliability 1200 V converter systems where soft switching, low EMI, and extended thermal margin are mandatory.
FAQ
What is the maximum allowable case temperature for continuous operation?
The datasheet specifies IF = 50 A at Tc = 100 °C, with corresponding Ptot = 114 W. At Tc = 125 °C, derating applies: maximum IF drops to ~38 A. Operation beyond 125 °C case temperature requires thermal simulation and lifetime validation per JEDEC22-A108.
Is IDWD50E120D7XKSA1 compatible with standard TO-247 heatsinks?
Yes-it uses the PG-TO247-2-STD-NA8.8 outline, matching mechanical dimensions and screw hole placement of standard TO-247-2 heatsinks. The backside cathode connection ensures direct thermal interface without insulating pads, provided the heatsink is electrically isolated from system ground.
Does this diode require a gate resistor or external snubber network?
No gate resistor is needed (it is a diode). Due to its soft recovery characteristics and low Qrr, it operates reliably without an RC snubber in typical 10–20 kHz IGBT-based inverters. However, layout inductance must remain ≤27 nH (per datasheet test condition) to maintain specified trr and Erec performance.
How does humidity robustness impact long-term field reliability?
Infineon's humidity-robust design includes enhanced mold compound adhesion and barrier layer protection on bond wires and chip edges. This prevents moisture ingress-induced corrosion and parameter drift-validated over 1000 hours at 85 °C/85% RH-making it suitable for unsealed outdoor EV chargers and humid indoor heat pump enclosures.
IDWD50E120D7XKSA1 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):
- 81A
- Voltage - Forward (Vf) (Max) @ If:
- 3 V @ 50 A
- Speed:
- Fast Recovery =< 500ns, > 5A (Io)
- Reverse Recovery Time (trr):
- 160 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
IDWD50E120D7XKSA1 FAQ
1.How can I place an order for IDWD50E120D7XKSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDWD50E120D7XKSA1 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 IDWD50E120D7XKSA1 reliable?
The price and inventory of IDWD50E120D7XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDWD50E120D7XKSA1 is usually 5 days.
3.What payment methods are accepted for IDWD50E120D7XKSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDWD50E120D7XKSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDWD50E120D7XKSA1?
IDWD50E120D7XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDWD50E120D7XKSA1 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 IDWD50E120D7XKSA1?
For technical support, including IDWD50E120D7XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDWD50E120D7XKSA1 requirements.
6.How does Aetrix verify that IDWD50E120D7XKSA1 is sourced from the original manufacturer or authorized distributors?
All IDWD50E120D7XKSA1 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 IDWD50E120D7XKSA1 meets industry standards.
7.What is the process for return or replacement of IDWD50E120D7XKSA1?
All IDWD50E120D7XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDWD50E120D7XKSA1, 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 IDWD50E120D7XKSA1 part is unused and in its original packaging.
Return procedure for IDWD50E120D7XKSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDWD50E120D7XKSA1 Tags
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