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Infineon Technologies D471N90TXPSA1
- Part No.:
- D471N90TXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AB, B-PUK
- Datasheet:
-
D471N90TXPSA1.pdf
- Description:
- DIODE GEN PURP 9KV 760A
- Quantity:
- Payment:
- Shipping:
Inventory:7,467
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Product details
Overview
D471N90TXPSA1 from Infineon Technologies is a high-voltage, high-current press-pack rectifier diode designed for medium-voltage drive and pulsed-power systems. It delivers 9000 V repetitive peak reverse voltage (VRRM), 550 A average forward current at 100 °C case temperature (IFAVM), and 11 kA non-repetitive surge current (IFSM), with a low slope resistance of 1.8 mΩ and hermetically sealed ceramic package.
For engineers reviewing the D471N90TXPSA1 datasheet, D471N90TXPSA1 pinout, D471N90TXPSA1 application, or D471N90TXPSA1 equivalent, key selection criteria include blocking stability under 50/60 Hz AC line conditions, thermal resistance (RthJC = 28 K/kW), clamping force range (10–16 kN), and reverse recovery behavior (Qr ≤ 6 mAs, IRM ≤ 200 A) in high-di/dt switching environments.
Technical Context
This device is a two-terminal, silicon-based, pressure-contact rectifier diode with no gate control-operating solely as an uncontrolled, bidirectional thermal-path power switch. Its electrical behavior is defined by a piecewise polynomial on-state characteristic (vF = A + B·iF + C·iF² + D·iF³) and exhibits low stored charge (Qr typ. 4.2 mAs at VR = 100 V) to minimize turn-off losses in high-frequency converter topologies.
Thermally, it supports dual-sided cooling with a maximum junction temperature of 160 °C and transient thermal impedance modeled via seven RC network elements. Mechanical integration requires precise clamping force (10–16 kN) across its 58.5 mm diameter ceramic housing to ensure stable contact resistance and thermal conduction at both anode and cathode interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 9000 V - Sustains full AC line reversal without breakdown in medium-voltage drives up to 6.6 kV RMS systems. |
| IFAVM @ TC=100°C | 550 A - Continuous DC forward current rating under industrial heatsink conditions; defines steady-state power handling. |
| IFSM (10 ms) | 11000 A - Peak short-circuit current capability; enables robust fault ride-through in motor drives and UPS inverters. |
| rT | 1.8 mΩ - Slope resistance determines conduction loss linearity (vF ≈ VT0 + rT·iF); critical for efficiency at high load currents. |
| RthJC | 28 K/kW - Junction-to-case thermal resistance under two-sided cooling; sets minimum heatsink requirement for 160 °C max junction operation. |
| Qr (VR=1000 V) | 6 mAs - Recovered reverse charge during turn-off; directly impacts snubber sizing and EMI in hard-switched converters. |
| Clamping Force | 10–16 kN - Required mechanical load to maintain low contact resistance and thermal interface integrity across ceramic-metal interfaces. |
Pinout & Package
Hermetically sealed ceramic press-pack package with axial symmetry: anode and cathode are flat, circular metal surfaces (34 mm contact diameter, 58.5 mm outer diameter, 26.9 mm height). Requires external mechanical clamping for electrical and thermal connection-no solderable pins or leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Surface 1) | Forward current entry point | High-current input terminal; must be clamped with ≥10 kN force to minimize contact resistance and hot-spot formation. |
| Cathode (Surface 2) | Forward current exit point | Return path for DC output; dual-sided cooling requires symmetric thermal interface design on both terminals. |
Key Features
| Feature | Design Value |
|---|---|
| Full 50/60 Hz blocking over -40 to +160 °C | Ensures reliable operation in grid-tied and industrial drive applications without derating across ambient and junction temperature extremes. |
| Hermetically sealed ceramic housing | Prevents moisture ingress and contamination in harsh environments (e.g., offshore wind converters, mining equipment). |
| High case non-rupture current | Withstands mechanical stress during high di/dt events without housing fracture-critical for pulsed-power crowbar circuits. |
| Low VT0 (1.04 V) and rT (1.8 mΩ) | Reduces conduction losses at rated current, improving system efficiency and reducing heatsink size in high-power rectification stages. |
Applications
| Drive Rectifiers | Medium-Voltage Converters |
|---|---|
Use Scenario: Three-phase bridge rectification in 3.3 kV–6.6 kV AC motor drives for HVAC, compressors, and traction systems. IC Role / Device Role / Timing Role: Uncontrolled power conversion stage converting AC line input to stable DC bus; operates at fundamental frequency with minimal switching stress. Use Value: High VRRM and IFAVM enable direct rectification without series stacking; low rT reduces thermal load on liquid-cooled heatsinks. | Use Scenario: Input rectification in modular multilevel converters (MMC) and active front-end (AFE) inverters for renewable energy plants. IC Role / Device Role / Timing Role: Primary DC-link generation component; handles continuous conduction mode with high RMS current and low harmonic distortion. Use Value: Dual-sided cooling compatibility and 28 K/kW RthJC support high-power density packaging in compact converter cabinets. |
| Pulsed Power Systems | Crowbar Protection Circuits |
Use Scenario: Energy discharge paths in capacitor banks for electromagnetic launchers, laser drivers, and fusion research test beds. IC Role / Device Role / Timing Role: High-current, single-pulse conduction element triggered by thyristor-gated discharge cycles. Use Value: 11 kA IFSM and 605×10³ A²s I²t rating allow safe delivery of multi-megajoule pulses without thermal runaway. | Use Scenario: Fault bypass in high-power UPS and grid-tie inverters during DC-link overvoltage events. IC Role / Device Role / Timing Role: Passive crowbar switch that conducts only during overvoltage transients, diverting current away from sensitive IGBTs. Use Value: Hermetic ceramic package ensures long-term reliability under repeated surge stress; high case non-rupture current prevents mechanical failure during fault clearing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD900N12K | 1200 V VRRM, 900 A IFAVM, TO-247 package - lower voltage, higher current, discrete leaded form factor | Suitable for low-medium voltage (≤1.2 kV) industrial SMPS and welding equipment; not usable in 6.6 kV drive rectifiers | Select when system voltage < 1.5 kV and PCB-mounting or heatsink bolt-down is required instead of press-pack integration. |
| SKKH 105/12 | 1200 V VRRM, 105 A IFAVM, press-pack - same mechanical format but 5× lower current rating and 7.5× lower VRRM | Applicable in auxiliary supplies and low-power HVDC links where space and clamping infrastructure are constrained | Choose only for prototyping or low-power validation; insufficient for main rectifier duty in D471N90TXPSA1's target applications. |
Compared with DD900N12K and SKKH 105/12, D471N90TXPSA1 uniquely supports 9 kV blocking and 550 A continuous conduction in a press-pack format-making it irreplaceable in medium-voltage drive rectification where series-stacking complexity and thermal management demand are prohibitive for lower-rated alternatives.
Availability
D471N90TXPSA1 is available at Aetrix Electronics and suitable for medium-voltage drive rectifiers, pulsed-power discharge systems, and crowbar protection circuits requiring stable component supply across extended production lifecycles.
Supply support for D471N90TXPSA1 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 systems.
D471N90TXPSA1 belongs to Infineon's high-power press-pack diode product line, engineered specifically for ruggedized, high-reliability rectification in utility-scale power conversion and heavy-duty industrial motion control.
FAQ
What is the recommended clamping force range for D471N90TXPSA1?
The datasheet specifies a clamping force of 10–16 kN for reliable thermal and electrical contact. Below 10 kN, contact resistance rises sharply, increasing local heating and risk of thermal runaway. Above 16 kN, ceramic housing fracture becomes likely. Use calibrated hydraulic or torque-controlled presses with flat, parallel platens to ensure uniform distribution across the 34 mm contact surface.
Can D471N90TXPSA1 be used in single-sided cooled configurations?
Yes, but with significant derating: RthJC increases to 54.0 K/kW (anode-side) or 58.0 K/kW (cathode-side), reducing maximum allowable power dissipation by ~50% compared to dual-sided cooling. Single-sided use is only acceptable in low-duty-cycle or forced-air-cooled auxiliary applications-not in continuous high-power drive rectifiers.
What is the maximum junction temperature and how is it enforced?
The absolute maximum junction temperature (Tvj max) is 160 °C. This limit is enforced through thermal design: using the published RthJC (28 K/kW) and RthCH (6.0 K/kW), the heatsink base temperature must stay ≤100 °C at 550 A IFAVM to prevent exceeding 160 °C. Real-time monitoring requires embedded thermistors or infrared measurement at the case surface near the pellet edge.
Does D471N90TXPSA1 have a specified reverse recovery time (trr)?
No-Infineon characterizes this diode by recovered charge (Qr ≤ 6 mAs) and peak reverse recovery current (IRM ≤ 200 A) under defined test conditions (VR = 1000 V, -di/dt = 10 A/µs), not trr. The absence of trr reflects its soft-recovery, low-Qr design optimized for low EMI in line-frequency applications, not fast-switching topologies.
D471N90TXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AB, B-PUK
- Packaging:
- Tray
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 9000 V
- Current - Average Rectified (Io):
- 760A
- Voltage - Forward (Vf) (Max) @ If:
- 3.2 V @ 1200 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 mA @ 9000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 160°C
D471N90TXPSA1 FAQ
1.How can I place an order for D471N90TXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D471N90TXPSA1 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 D471N90TXPSA1 reliable?
The price and inventory of D471N90TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D471N90TXPSA1 is usually 5 days.
3.What payment methods are accepted for D471N90TXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D471N90TXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D471N90TXPSA1?
D471N90TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D471N90TXPSA1 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 D471N90TXPSA1?
For technical support, including D471N90TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D471N90TXPSA1 requirements.
6.How does Aetrix verify that D471N90TXPSA1 is sourced from the original manufacturer or authorized distributors?
All D471N90TXPSA1 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 D471N90TXPSA1 meets industry standards.
7.What is the process for return or replacement of D471N90TXPSA1?
All D471N90TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D471N90TXPSA1, 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 D471N90TXPSA1 part is unused and in its original packaging.
Return procedure for D471N90TXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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