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Infineon Technologies D56U40CXPSA1
- Part No.:
- D56U40CXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- Stud
- Datasheet:
-
D56U40CXPSA1.pdf
- Description:
- DIODE GEN PURP 4KV 102A DSW272-1
- Quantity:
- Payment:
- Shipping:
Inventory:7,173
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Product details
Overview
D56U40CXPSA1 from eupec (Infineon Technologies) is a high-voltage, high-current fast recovery diode designed for industrial AC/DC and DC/DC conversion in medium-power rectification stages. It features 4000 V repetitive peak reverse voltage (VRRM), 140 A RMS forward current (IFRMSM), 3.3 µs reverse recovery time (trr), and 550 µAs recovered charge (Qr), enabling use in 3-phase bridge rectifiers for motor drives and UPS systems.
For engineers reviewing the D56U40CXPSA1 datasheet, D56U40CXPSA1 pinout, D56U40CXPSA1 application, or D56U40CXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.325 °C/W), softness factor (0.004 µs/A), forward voltage at 280 A (4.15 V max), and compatibility with M12 heatsink mounting per K1.1-M12-A specification.
Technical Context
This diode employs planar passivated silicon die with pressure-contact construction for high surge robustness and stable thermal performance under repetitive switching stress. Its 125 °C maximum junction temperature and 0.004 µs/A softness rating support controlled turn-off in hard-switched converters without excessive voltage overshoot.
The device delivers low stored charge (Qr = 550 µAs) and fast reverse recovery (trr = 3.3 µs) at iFM = 150 A and -diF/dt = 200 A/µs, with defined threshold voltage (V(TO) = 1.64 V) and slope resistance (rT = 8 mΩ), enabling predictable conduction loss modeling in high-frequency rectifier designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 4000 V - Maximum repetitive reverse blocking voltage; defines usable DC bus voltage headroom in 3-phase 690 VAC systems. |
| IFRMSM | 140 A - RMS forward current rating; sets continuous power-handling capability with forced-air or liquid-cooled heatsinking. |
| trr | 3.3 µs - Reverse recovery time at iFM = 150 A, -diF/dt = 200 A/µs; enables operation up to ~100 kHz in phase-controlled rectifiers. |
| Qr | 550 µAs - Recovered charge during turn-off; directly impacts commutation losses and snubber sizing in thyristor-diode hybrid bridges. |
| RthJC | 0.325 °C/W - Junction-to-case thermal resistance (DC); determines minimum heatsink requirement for 56 A average forward current at 73°C case temp. |
| VF @ 280 A | 4.15 V max - Forward voltage at rated pulse current; used to calculate peak conduction loss (1162 W) during short-duration overload events. |
| SR | 0.004 µs/A - Softness factor; quantifies di/dt-dependent recovery tail length, critical for minimizing EMI and voltage spikes in IGBT-based inverters. |
Pinout & Package
Package: Press-fit stud-mount diode with anode and cathode terminals on opposite faces of a 21 mm diameter ceramic-insulated metal case. Mounting uses M20 torque (20 Nm) to ensure consistent thermal and electrical contact with heatsinks K1.1-M12-A, K0.55-M12-A, or GK-M12-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Case) | Main current entry point | Electrically and thermally connected to metal case; requires insulated mounting or direct heatsink contact with isolation interface. |
| Cathode (Top stud) | Main current exit point | M12 threaded stud provides mechanical fixation and low-inductance connection to PCB or busbar; polarity must be verified before installation. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | 4000 V VRRM supports 690 VAC 3-phase input rectification with 2× safety margin per IEC 61800-5-1. |
| Controlled soft recovery | 0.004 µs/A softness ensures minimal voltage overshoot during IGBT commutation in VFD front-end rectifiers. |
| Low thermal resistance | 0.325 °C/W RthJC enables compact thermal design with standard M12 heatsinks under 56 A DC load. |
| High surge robustness | 1350 A IFSM (10 ms) withstands motor-start inrush and short-circuit fault currents in industrial power supplies. |
| Pressure-contact Si pellet | Eliminates wire bonds and solder interfaces, improving long-term reliability under thermal cycling in traction and welding equipment. |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies |
|---|---|
Use Scenario: Three-phase full-wave rectification in 75–110 kW variable frequency drive front ends. IC Role / Device Role / Timing Role: Fast recovery diode in anti-parallel configuration with line-commutated thyristors or as freewheeling element in active front-end topologies. Use Value: 3.3 µs trr and 550 µAs Qr reduce commutation losses by >18% versus standard recovery diodes, lowering heatsink mass by 22%. |
Use Scenario: Battery-charger rectifier stage in online double-conversion UPS systems rated ≥60 kVA. IC Role / Device Role / Timing Role: High-reliability main rectifier handling 140 A RMS input current with 4000 V isolation for 400 VDC bus generation. Use Value: 0.325 °C/W RthJC and M20 mounting enable stable operation at 73°C case temperature without derating under continuous load. |
| Medium-Voltage Welding Equipment | Renewable Energy Inverters |
Use Scenario: Secondary-side rectification in resonant DC-DC converters for robotic arc-welding power sources. IC Role / Device Role / Timing Role: Fast recovery diode in center-tapped or full-bridge output stage operating at 20–50 kHz switching frequency. Use Value: 4.15 V VF at 280 A pulse current ensures <1.2 kW peak conduction loss during weld initiation transients. |
Use Scenario: Grid-interface rectifier in bi-directional solar/wind converter systems with 1000 VDC bus architecture. IC Role / Device Role / Timing Role: High-reliability passive rectifier supporting bidirectional energy flow and fault ride-through requirements. Use Value: 4100 V VRSM and 125 °C tvj max meet IEC 62109-1 insulation coordination and thermal endurance for outdoor deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS DSEI 30-12A | 1200 V VRRM, TO-247 package, 50 A IFRMSM, 65 ns trr - lower voltage rating, faster recovery, but limited to ≤690 VAC systems. | Used in low-voltage SMPS and servo drives; unsuitable for 690 VAC industrial rectification due to insufficient blocking margin. | Select only when system DC bus ≤800 V and switching frequency >50 kHz demands ultrafast recovery. |
| STMicroelectronics STTH1606D | 600 V VRRM, TO-220AC package, 16 A IFRMSM, 65 ns trr - significantly lower voltage/current ratings and plastic packaging. | Targeted at consumer-grade AC-DC adapters and small inverters; lacks pressure-contact construction and M12 mounting. | Applicable only in cost-sensitive, low-power (<2 kW), non-industrial environments with no thermal cycling stress. |
Compared with D56U40CXPSA1, both alternatives offer faster trr but fail to deliver required 4000 V blocking, 140 A RMS current, or M12 stud-mount reliability-making them unsuitable for industrial medium-power rectification where long-term thermal stability and surge immunity are mandatory.
Availability
D56U40CXPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, medium-voltage welding equipment, and renewable energy inverters requiring stable component supply across multi-year production cycles.
Supply support for D56U40CXPSA1 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
eupec was a European power semiconductor manufacturer acquired by Infineon Technologies in 2000; its legacy high-power diode and thyristor products remain widely deployed in industrial infrastructure.
This part belongs to eupec's D56U fast recovery diode series, engineered specifically for ruggedized, high-current rectification in harsh-environment applications including traction, welding, and grid-tied power conversion.
FAQ
What is the maximum allowable case temperature for continuous operation?
The datasheet specifies tC op = –40 °C to +125 °C, but the mean forward current rating (IFAVM) is defined at tC = 73 °C (56 A) and tC = 22 °C (89 A). Sustained operation above 73 °C requires derating per the IFAVM curve; thermal design must maintain case temperature ≤73 °C for rated DC current.
Can D56U40CXPSA1 be used in parallel configurations?
Yes-its forward voltage matching (VF tolerance implied by V(TO) = 1.64 V and rT = 8 mΩ) and pressure-contact construction support current sharing when mounted on a common heatsink with matched thermal paths and symmetrical busbar layout. External balancing resistors are not required if mounting torque and surface flatness are controlled within ±5%.
What heatsink types are certified for use with this diode?
The datasheet explicitly lists three compatible heatsinks: K1.1-M12-A, K0.55-M12-A, and GK-M12-A-all featuring M12 mounting interface, single-sided thermal interface, and creepage distance ≥21 mm. Use of non-listed heatsinks voids thermal performance guarantees and may exceed RthCK = 0.04 °C/W limit.
Is this diode suitable for use in aerospace or medical life-support systems?
No-per the manufacturer's Terms & Conditions, this device is not qualified for aviation, health-endangering, or life-support applications. It lacks extended reliability testing, radiation hardening, or quality agreements required for such domains; users must notify the supplier and initiate joint risk assessment before considering deployment in those contexts.
D56U40CXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Stud
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 4000 V
- Current - Average Rectified (Io):
- 102A
- Voltage - Forward (Vf) (Max) @ If:
- 4.5 V @ 320 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 3.3 µs
- Current - Reverse Leakage @ Vr:
- 5 mA @ 4000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- BG-DSW272-1
- Operating Temperature - Junction:
- 125°C
D56U40CXPSA1 FAQ
1.How can I place an order for D56U40CXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D56U40CXPSA1 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 D56U40CXPSA1 reliable?
The price and inventory of D56U40CXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D56U40CXPSA1 is usually 5 days.
3.What payment methods are accepted for D56U40CXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D56U40CXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D56U40CXPSA1?
D56U40CXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D56U40CXPSA1 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 D56U40CXPSA1?
For technical support, including D56U40CXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D56U40CXPSA1 requirements.
6.How does Aetrix verify that D56U40CXPSA1 is sourced from the original manufacturer or authorized distributors?
All D56U40CXPSA1 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 D56U40CXPSA1 meets industry standards.
7.What is the process for return or replacement of D56U40CXPSA1?
All D56U40CXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D56U40CXPSA1, 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 D56U40CXPSA1 part is unused and in its original packaging.
Return procedure for D56U40CXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D56U40CXPSA1 Tags
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