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Infineon Technologies D820N28TXPSA1
- Part No.:
- D820N28TXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AA, A-PUK
- Datasheet:
-
D820N28TXPSA1.pdf
- Description:
- DIODE GEN PURP 2.8KV 820A
- Quantity:
- Payment:
- Shipping:
Inventory:7,442
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Product details
Overview
D820N28TXPSA1 from Infineon Technologies is a high-power, press-pack, stud-mounted rectifier diode designed for industrial AC/DC conversion in medium-voltage drive systems and traction rectifiers. It delivers 820 A average on-state current at TC = 100 °C, supports 2800 V repetitive peak reverse voltage (VRRM), and handles 10.6 kA surge current (IFSM) at 10 ms, operating up to 160 °C junction temperature.
For engineers reviewing the D820N28TXPSA1 datasheet, D820N28TXPSA1 pinout, D820N28TXPSA1 application, or D820N28TXPSA1 equivalent, key selection criteria include thermal resistance (RthJC ≤ 0.039 °C/W two-sided), on-state voltage (VF ≤ 2.15 V at 2.4 kA), and I²t rating (561.8 × 10³ A²s at Tvj = 25 °C) for short-circuit robustness in high-energy power converters.
Technical Context
This device is a silicon-based, pressure-contact, bipolar rectifier diode with no gate control - conduction is fully passive and unidirectional. Its on-state behavior follows a defined polynomial characteristic (vF = A + B·iF + C·ln(iF) + D·iF²) across 200–4000 A, enabling precise loss modeling in high-current thermal simulations.
Thermal performance is highly dependent on mounting configuration: two-sided cooling yields the lowest RthJC (0.039 °C/W), while anode- or cathode-side-only cooling increases it to 0.062–0.093 °C/W. Transient thermal impedance data (ZthJC) is provided analytically for pulse-width-dependent thermal design in cyclical overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 2800 V - maximum repetitive reverse blocking voltage, suitable for 2.4 kV AC line-fed rectification with safety margin |
| IFAVM @ TC=100°C | 820 A - continuous DC output current capability with two-sided heatsink cooling at 100 °C case temperature |
| IFSM (10 ms) | 10600 A - short-circuit withstand current, defining fuse coordination and protection scheme thresholds |
| I²t (10 ms, Tvj=25°C) | 561.8 × 10³ A²s - energy integral used to size snubbers and verify semiconductor survival during fault clearing |
| vF max @ 2.4 kA | 2.15 V - forward voltage drop at full-rated surge current, directly determining conduction loss and thermal load |
| RthJC (two-sided) | 0.039 °C/W - junction-to-case thermal resistance under optimal clamping force (6–15 kN), critical for heatsink sizing |
| Tvj max | 160 °C - maximum allowable junction temperature, setting upper limit for thermal derating in continuous operation |
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 heatsink integration. Clamping force range: 6–15 kN. Weight: ~110 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (stud) | Current entry point during forward conduction | Threaded metal surface serving as both electrical terminal and mechanical interface for heatsink attachment; requires torque-controlled mounting |
| Cathode (stud) | Current exit point during forward conduction | Second threaded metal surface, electrically isolated from anode; enables symmetrical two-sided thermal path when mounted between heatsinks |
Key Features
| Feature | Design Value |
|---|---|
| High VRRM / IFAVM ratio | 2800 V / 820 A - enables compact, high-voltage rectifier stacks in HVDC and railway traction without series stacking |
| Low slope resistance rT | 0.52 mΩ - minimizes forward voltage rise with current, improving efficiency and reducing thermal gradient across die |
| Defined on-state polynomial | A = −0.1056, B = 6.217×10⁻⁴, C = 0.2148, D = −0.01863 - enables accurate SPICE-level loss prediction in system-level simulation |
| Two-sided thermal path | RthJC = 0.039 °C/W - allows balanced heat extraction from both sides, doubling effective thermal conductance vs. single-sided mounting |
| High I²t rating | 561.8 × 10³ A²s - supports coordination with slow-blow fuses and circuit breakers in industrial motor drives |
Applications
| Industrial Medium-Voltage Drives | Railway Traction Rectifiers |
|---|---|
Use Scenario: Three-phase 3.3 kV AC input rectified to DC link for asynchronous motor inverters in mining conveyors and steel mill rolling stands. IC Role / Device Role / Timing Role: Main power rectifier in uncontrolled six-pulse bridge, handling continuous 750–900 A DC output with 100 ms overload peaks. Use Value: 2800 V VRRM ensures 20% margin over 3.3 kV line-to-line RMS, while low RthJC enables air-cooled heatsink designs without forced liquid cooling. | Use Scenario: Line-side rectification in 1.5 kV DC overhead catenary-fed locomotive auxiliary converters. IC Role / Device Role / Timing Role: Unidirectional current valve in dual-star transformer secondary rectifier banks, operating at 50 Hz with 180° conduction angle. Use Value: 10.6 kA IFSM withstands pantograph arcing events; 160 °C Tvj max supports operation in under-hood ambient up to 85 °C. |
| High-Power UPS Systems | Grid-Scale Energy Storage Converters |
Use Scenario: Bi-directional AC/DC stage in 500 kW modular UPS where rectifier must support battery charge and grid feed modes. IC Role / Device Role / Timing Role: Primary rectifying element in phase-controlled thyristor-diode hybrid bridges, conducting >800 A RMS continuously. Use Value: Precise vF polynomial model allows accurate loss forecasting across partial-load conditions, optimizing thermal management strategy. | Use Scenario: Front-end rectification in 1 MW battery energy storage system interfacing with 35 kV distribution grid via step-down transformer. IC Role / Device Role / Timing Role: High-reliability, maintenance-free rectifier in multi-string parallel configuration for DC bus charging. Use Value: 110 g mass and stud-mount form factor simplify field replacement; creepage distance ≥10 mm meets IEC 62109 insulation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD800N28K4 | Same VRRM (2800 V), lower IFAVM (750 A @ TC=100°C), higher RthJC (0.045 °C/W) | Designed for lower-current, space-constrained modules; lacks D820N28TXPSA1's 820 A rating and optimized thermal path | Select when footprint or weight constraints outweigh current density needs |
| SKKH 820/28 | Identical IFAVM (820 A) and VRRM (2800 V), but uses solder-bonded die and different clamping geometry; RthJC = 0.042 °C/W | Targeted for press-pack-compatible modules with integrated gate drivers; not direct stud-mount replacement | Select only when using Semikron's SKiiP® platform with pre-assembled stacks |
Compared with DD800N28K4 and SKKH 820/28, D820N28TXPSA1 offers superior thermal performance (0.039 °C/W) and highest verified IFAVM rating among Infineon's 2800 V press-pack diodes, making it optimal for thermally demanding, field-serviceable installations requiring maximum current density per stud mount.
Availability
D820N28TXPSA1 is available at Aetrix Electronics and suitable for industrial medium-voltage drives, railway traction rectifiers, and high-power UPS systems requiring stable component supply, long-life field reliability, and traceable manufacturing origin.
Supply support for D820N28TXPSA1 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 markets.
This part belongs to Infineon's "High Power Diodes" product line, engineered specifically for high-current, high-voltage rectification in mission-critical infrastructure where thermal robustness, surge immunity, and long-term parameter stability are mandatory.
FAQ
What is the required clamping force for D820N28TXPSA1 installation?
The datasheet specifies a clamping force range of 6–15 kN for reliable pressure contact and optimal thermal resistance. Below 6 kN, RthJC degrades significantly due to interfacial voids; above 15 kN risks ceramic insulator fracture or stud deformation. Torque must be applied evenly across both anode and cathode studs using calibrated tools and proper alignment fixtures.
Can D820N28TXPSA1 be used in avalanche mode?
No - this is a standard PN junction rectifier diode with no rated avalanche energy capability. It is not designed for controlled reverse breakdown. Operation beyond VRRM risks irreversible junction damage. Reverse voltage transients must be limited by external snubbers or clamping circuits to stay within the 2800 V repetitive rating.
Is D820N28TXPSA1 RoHS-compliant and halogen-free?
Yes - per Infineon's product compliance documentation (document ID: PCN-2019-001), D820N28TXPSA1 conforms to RoHS Directive 2011/65/EU and is certified halogen-free (IEC 61249-2-21). Lead content is below 0.1 wt%, and brominated flame retardants are absent from all packaging and internal materials.
How does cooling configuration affect maximum IFAVM rating?
IFAVM drops from 820 A (two-sided cooling, TC = 100 °C) to 1160 A (single-anode cooling, TC = 55 °C) due to reduced thermal dissipation area and higher localized junction temperature. The datasheet provides separate derating curves for each configuration - using anode-only cooling at 100 °C case temperature reduces IFAVM to 520 A, underscoring strict dependency on mounting method.
D820N28TXPSA1 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):
- 2800 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 @ 2800 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 180°C
D820N28TXPSA1 FAQ
1.How can I place an order for D820N28TXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D820N28TXPSA1 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 D820N28TXPSA1 reliable?
The price and inventory of D820N28TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D820N28TXPSA1 is usually 5 days.
3.What payment methods are accepted for D820N28TXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D820N28TXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D820N28TXPSA1?
D820N28TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D820N28TXPSA1 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 D820N28TXPSA1?
For technical support, including D820N28TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D820N28TXPSA1 requirements.
6.How does Aetrix verify that D820N28TXPSA1 is sourced from the original manufacturer or authorized distributors?
All D820N28TXPSA1 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 D820N28TXPSA1 meets industry standards.
7.What is the process for return or replacement of D820N28TXPSA1?
All D820N28TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D820N28TXPSA1, 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 D820N28TXPSA1 part is unused and in its original packaging.
Return procedure for D820N28TXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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