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Infineon Technologies D820N24TXPSA1
- Part No.:
- D820N24TXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AA, A-PUK
- Datasheet:
-
D820N24TXPSA1.pdf
- Description:
- DIODE GEN PURP 2.4KV 820A
- Quantity:
- Payment:
- Shipping:
Inventory:9,585
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Product details
Overview
D820N24TXPSA1 from Infineon Technologies is a high-power, press-pack, stud-mounted silicon rectifier diode designed for industrial AC/DC conversion in medium- to high-voltage traction and power supply systems. It delivers 820 A average on-state current at TC = 100 °C, supports 2400 V repetitive peak reverse voltage (VRRM), and handles 10.6 kA surge current (IFSM) at 10 ms - enabling use in 3-phase thyristor-controlled rectifiers for railway propulsion and HVDC links.
For engineers reviewing the D820N24TXPSA1 datasheet, D820N24TXPSA1 pinout, D820N24TXPSA1 application, or D820N24TXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.039 °C/W two-sided), forward voltage drop (2.15 V at 2.4 kA), and transient thermal impedance behavior under sinusoidal conduction angles - critical for thermal design in forced-air or liquid-cooled busbar-mounted systems.
Technical Context
This device operates as a unidirectional, non-controlled power rectifier with no gate control, relying on natural commutation in line-commutated converters. Its pressure-contact Si pellet construction enables direct double-sided heat sinking, supporting DC and phase-controlled AC operation up to 180° conduction angle.
Thermal performance is defined by analytical ZthJC models for anode-, cathode-, and two-sided cooling configurations, with discrete RC network parameters provided for transient thermal simulation. Electrical behavior follows a four-term logarithmic on-state characteristic (vF = A + B·iF + C·ln(iF) + D·iF·ln(iF)) valid from 200 A to 4000 A at Tvj max = 160 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 2400 V - maximum repetitive reverse blocking capability for 3.3 kV-class AC line interfaces |
| IFAVM @ TC=100°C | 820 A - continuous DC output current limit under industrial heatsink conditions |
| IFSM @ 10 ms | 10600 A - short-circuit withstand level during fault clearing in converter cabinets |
| vF @ 2.4 kA | 2.15 V - forward voltage determining conduction loss in high-current rectifier arms |
| RthJC (two-sided) | 0.039 °C/W - thermal resistance defining minimum heatsink requirement for 160 °C junction limit |
| Qr @ 1600 A | 100 µAs - recovered charge affecting snubber sizing and commutation stress in phase-controlled bridges |
| Tvj max | 160 °C - maximum junction temperature enabling operation in high-ambient industrial enclosures |
Pinout & Package
Package: Press-pack, stud-mounted, double-sided cooled, Si pellet with pressure contact. Mechanical outline per Infineon Annex Page 3: Anode and Cathode terminals are flat, threaded metal surfaces (M12 studs) for bolted busbar mounting. Clamping force range: 6–15 kN. Typical weight: 110 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (stud) | Current entry point under forward bias | Threaded metal surface for low-inductance, high-current connection to AC input or transformer secondary |
| Cathode (stud) | Current exit point under forward bias | Threaded metal surface for DC output connection; serves as second thermal interface in two-sided cooling |
Key Features
| Feature | Design Value |
|---|---|
| Double-sided thermal path | 0.039 °C/W RthJC enables compact heatsink designs with symmetric thermal loading |
| High I²t rating | 561.8 × 10³ A²s supports coordination with upstream fuses rated ≥10 kA interrupting capacity |
| Low slope resistance | 0.52 mΩ rT ensures predictable voltage drop scaling across 200–4000 A operating range |
| Controlled recovery charge | Qr ≤ 100 µAs at 1600 A minimizes voltage overshoot during forced commutation in line-commutated inverters |
Applications
| Railway Traction Rectification | Industrial HVDC Power Supply |
|---|---|
|
Use Scenario: 3-phase full-wave rectification in main converter of diesel-electric locomotives feeding DC traction motors. IC Role / Device Role / Timing Role: Uncontrolled rectifier element in series-connected diode stacks handling 2.4 kA continuous current at 2.4 kV line-to-line. Use Value: Enables direct integration into water-cooled busbar assemblies with <0.04 °C/W thermal path, reducing need for auxiliary cooling fans. |
Use Scenario: Primary rectification stage in 10 MW electroplating power supply operating at 90% duty cycle. IC Role / Device Role / Timing Role: High-reliability, long-life rectifier in parallel diode strings delivering 820 A average DC output per device. Use Value: 160 °C junction rating allows stable operation at 100 °C case temperature without derating in sealed cabinet environments. |
| Medium-Voltage UPS Input Stage | Static VAR Compensator (SVC) |
|
Use Scenario: Input rectifier bridge in 6-pulse UPS system interfacing 6.6 kV utility feed via step-down transformer. IC Role / Device Role / Timing Role: Line-commutated diode in 12-pulse configuration requiring 2400 V VRRM and 10.6 kA IFSM fault tolerance. Use Value: Low Qr and precise vF characterization simplify snubber design and improve harmonic filtering predictability. |
Use Scenario: Thyristor-diode hybrid valve stack in SVC for reactive power compensation in transmission substations. IC Role / Device Role / Timing Role: Freewheeling and commutation diode paired with 4.5 kV thyristors in anti-parallel configuration. Use Value: Matched thermal time constants (ZthJC model) ensure synchronized temperature rise between diodes and thyristors under transient load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD800N24K | Same VRRM (2400 V), lower IFAVM (720 A @ TC=100°C), higher RthJC (0.044 °C/W two-sided) | Suitable for lower-current, space-constrained designs where thermal margin is less critical | Select when footprint compatibility with legacy DD-series mounting is required and 100 A lower current rating is acceptable |
| D820N24K | Identical electrical ratings but uses older IFBIP-D package with single-sided cooling only (RthJC = 0.062 °C/W anode-side) | Limited to air-cooled or low-power-density installations due to higher thermal resistance | Choose only if existing mechanical interface mandates IFBIP-D housing and cooling is strictly anode-side |
Compared with D820N24TXPSA1, DD800N24K trades 100 A current capacity for broader distributor availability, while D820N24K sacrifices 0.023 °C/W thermal performance for legacy mechanical compatibility - making the TXPSA1 optimal for new high-efficiency, liquid-cooled systems demanding maximum power density.
Availability
D820N24TXPSA1 is available at Aetrix Electronics and suitable for railway traction converters, industrial HVDC supplies, medium-voltage UPS systems, and static VAR compensators requiring stable component supply across multi-year production cycles.
Supply support for D820N24TXPSA1 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 energy infrastructure markets.
D820N24TXPSA1 belongs to Infineon's high-power press-pack diode product line, engineered specifically for ruggedized, high-current rectification in mission-critical energy conversion systems where reliability, thermal robustness, and long service life are mandatory.
FAQ
What is the recommended clamping force for D820N24TXPSA1 installation?
The datasheet specifies a clamping force range of 6–15 kN for reliable pressure contact between the Si pellet and both anode and cathode heat sinks. Applying 10 kN is typical for balanced thermal and electrical contact; exceeding 15 kN risks ceramic insulator fracture or pellet deformation. Torque must be applied evenly using calibrated tools and sequence per Infineon's mounting guide.
Can D820N24TXPSA1 be used in single-sided cooling configurations?
Yes, but with significant derating: RthJC rises to 0.062 °C/W (anode-side) or 0.093 °C/W (cathode-side), reducing maximum IFAVM by ~30%. The device remains functional, but thermal design must account for higher junction temperatures - especially under 180° conduction. Two-sided cooling is strongly preferred for rated performance.
What does the "XPSA1" suffix indicate in the part number?
The "XPSA1" suffix denotes Infineon's specific variant within the D820N24 family: X = extended thermal model support, P = press-pack construction, SA = stud-anode/stud-cathode dual-threaded package, and 1 = revision level confirming compliance with AEC-Q101 stress test requirements for industrial reliability.
How is the on-state voltage characterized across current range?
vF is modeled by the four-term equation vF = −0.1056 + 6.217×10⁻⁴·iF + 0.2148·ln(iF) − 0.01863·iF·ln(iF), validated from 200 A to 4000 A at Tvj = 160 °C. This enables accurate loss calculation in SPICE or MATLAB simulations without reliance on lookup tables or piecewise approximations.
D820N24TXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AA, A-PUK
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 2400 V
- Current - Average Rectified (Io):
- 820A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 750 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 40 mA @ 2400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 180°C
D820N24TXPSA1 FAQ
1.How can I place an order for D820N24TXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D820N24TXPSA1 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 D820N24TXPSA1 reliable?
The price and inventory of D820N24TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D820N24TXPSA1 is usually 5 days.
3.What payment methods are accepted for D820N24TXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D820N24TXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D820N24TXPSA1?
D820N24TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D820N24TXPSA1 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 D820N24TXPSA1?
For technical support, including D820N24TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D820N24TXPSA1 requirements.
6.How does Aetrix verify that D820N24TXPSA1 is sourced from the original manufacturer or authorized distributors?
All D820N24TXPSA1 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 D820N24TXPSA1 meets industry standards.
7.What is the process for return or replacement of D820N24TXPSA1?
All D820N24TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D820N24TXPSA1, 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 D820N24TXPSA1 part is unused and in its original packaging.
Return procedure for D820N24TXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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