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Infineon Technologies D1481N65TXPSA1
- Part No.:
- D1481N65TXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AC, K-PUK
- Datasheet:
-
D1481N65TXPSA1.pdf
- Description:
- DIODE GEN PURP 6.5KV 2200A
- Quantity:
- Payment:
- Shipping:
Inventory:5,370
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Product details
Overview
D1481N65TXPSA1 from Infineon Technologies is a high-voltage, high-current press-pack rectifier diode designed for medium-voltage converter and crowbar applications. It features VRRM = 6800 V, IFAVM = 1590 A (at TC = 100 °C), IFSM = 28000 A, VT0 = 0.75 V, and rT = 0.42 mΩ - enabling robust DC blocking and surge handling in industrial drive systems.
For engineers reviewing the D1481N65TXPSA1 datasheet, D1481N65TXPSA1 pinout, D1481N65TXPSA1 application, or D1481N65TXPSA1 equivalent, key selection criteria include verified 6.8 kV reverse blocking, 2.5 kA RMS on-state current capability, hermetically sealed ceramic package integrity, clamping force range (15–36 kN), and two-sided thermal resistance (RthJC = 14 K/kW).
Technical Context
This device is a silicon-based, pressure-contact rectifier diode with full 50/60 Hz blocking capability across –40 °C to +160 °C junction temperature. Its design centers on high case non-rupture current and stable DC blocking under sustained high-voltage stress.
The diode uses a double-sided cooled, hermetically sealed ceramic housing with 50 mm contact diameter and 76 mm max outer diameter. Thermal performance is defined by transient ZthJC curves for anode-, cathode-, and two-sided cooling configurations, supporting precise thermal modeling in high-power converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 6800 V - maximum repetitive reverse voltage; ensures reliable operation in 6.5 kV-class medium-voltage converters |
| IFAVM | 1590 A at TC = 100 °C - average forward current rating; defines continuous conduction capability in drive rectifiers |
| IFSM | 28000 A (10 ms, Tvj = 25 °C) - peak non-repetitive surge current; supports crowbar fault-clearing duty cycles |
| VT0 / rT | 0.75 V / 0.42 mΩ - threshold voltage and slope resistance; determines forward conduction loss and thermal dissipation profile |
| RthJC | 14 K/kW (two-sided cooling) - junction-to-case thermal resistance; enables accurate heatsink sizing for forced-air or liquid-cooled systems |
| Qr / IRM | 11 mAs / 300 A (VR = 1000 V) - recovered charge and peak reverse recovery current; critical for snubber design in high-di/dt switching environments |
| Clamping Force | 15–36 kN - mechanical compression range required to maintain low contact resistance and thermal interface integrity |
Pinout & Package
Package: Hermetically sealed ceramic press-pack diode with two-sided cooling interface, 76 mm max diameter, 26 mm height, 50 mm contact diameter, and dual-terminal (anode/cathode) configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Forward current entry point | High-current input terminal; requires ≥15 kN clamping force to ensure low-resistance Si-pellet contact and thermal path |
| Cathode (Terminal 2) | Forward current exit point | High-current output terminal; symmetrically engineered for bidirectional heat extraction in two-sided cooled stacks |
Key Features
| Feature | Design Value |
|---|---|
| Full 50/60 Hz blocking over wide temperature range | Stable VRRM retention from –40 °C to +160 °C junction temperature; eliminates derating in ambient-variable industrial enclosures |
| Hermetically sealed ceramic package | IP67-equivalent environmental sealing; prevents moisture ingress and contamination in high-humidity or dusty drive cabinet environments |
| High case non-rupture current | Withstands mechanical stress up to 36 kN clamping without housing fracture; ensures long-term reliability in stacked thyristor/diode assemblies |
| Two-sided thermal interface | Optimized for symmetrical heat extraction from both terminals; reduces hotspot formation in high-duty-cycle pulsed power applications |
| High DC blocking stability | ≤50 mA reverse leakage at VRRM and Tvj max; maintains isolation integrity during extended DC bus hold-up periods |
Applications
| Drive Rectification | Medium Voltage Converters |
|---|---|
Use Scenario: Three-phase AC-to-DC conversion in high-power AC drives for mining conveyors and marine propulsion. IC Role / Device Role / Timing Role: Main-line rectifier in phase-controlled converter bridges, conducting >1500 A average current at 6.5 kV DC link. Use Value: Enables direct integration into water-cooled stack assemblies with validated 14 K/kW RthJC and 28 kA surge tolerance. | Use Scenario: Grid-tied medium-voltage inverters for renewable energy substations (e.g., 3.3 kV or 6.6 kV interfaces). IC Role / Device Role / Timing Role: Uncontrolled rectifier stage in multi-level converter front-ends, operating continuously at 100 °C case temperature. Use Value: Delivers stable 6800 V blocking margin and <0.75 V VT0 to minimize conduction losses in 24/7 utility-scale operation. |
| Crowbar Protection | Pulsed Power Systems |
Use Scenario: Overvoltage protection in high-energy physics magnet supplies and fusion experiment power modulators. IC Role / Device Role / Timing Role: Fast-acting crowbar switch that shorts DC bus during fault detection, absorbing >25 kA surge currents. Use Value: Guarantees non-rupture mechanical integrity at 36 kN clamping and sustains 28 kA/10 ms surges without parameter drift. | Use Scenario: Pulse-forming networks (PFNs) in radar transmitters and electromagnetic launchers. IC Role / Device Role / Timing Role: High-dI/dt freewheeling diode in resonant charging circuits, recovering 11 mAs charge at 10 A/µs di/dt. Use Value: Low Qr and controlled IRM (<300 A) reduce snubber losses and enable precise pulse timing in sub-microsecond discharge cycles. |
Availability
D1481N65TXPSA1 is available at Aetrix Electronics and suitable for medium-voltage converters, industrial drive rectification, crowbar protection systems, and pulsed power applications requiring stable component supply across extended production lifecycles.
Supply support for D1481N65TXPSA1 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 electronics, automotive ICs, and industrial control solutions, with global manufacturing and R&D infrastructure.
This diode belongs to Infineon's high-power press-pack rectifier product line, engineered specifically for reliability-critical, high-voltage industrial power conversion where ceramic hermeticity, mechanical robustness, and thermal predictability are mandatory.
FAQ
What is the recommended clamping force range for D1481N65TXPSA1?
The specified clamping force is 15–36 kN. Applying force below 15 kN risks elevated contact resistance and thermal runaway; exceeding 36 kN may fracture the ceramic housing. Force must be applied uniformly across both terminals using calibrated hydraulic tooling per Infineon's mounting guidelines.
Does D1481N65TXPSA1 support single-sided cooling?
Yes - it supports anode-sided, cathode-sided, and two-sided cooling. However, RthJC degrades to 27–29 K/kW in single-sided mode versus 14 K/kW in two-sided mode. Thermal design must use the appropriate ZthJC curve set from page 5 of the datasheet.
What is the maximum allowable junction temperature?
The absolute maximum junction temperature (Tvj max) is 160 °C. Operation beyond this limit accelerates parameter drift and reduces long-term reliability. Continuous operation should target ≤150 °C junction temperature with margin for transient surges.
How does D1481N65TXPSA1 differ from standard stud-mount diodes?
Unlike stud-mount diodes, D1481N65TXPSA1 uses a pressure-contact silicon pellet inside a hermetically sealed ceramic package - eliminating solder joints and enabling higher surge current ratings, superior thermal cycling endurance, and compatibility with stacked multi-device modules in MV applications.
D1481N65TXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AC, K-PUK
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 6500 V
- Current - Average Rectified (Io):
- 2200A
- Voltage - Forward (Vf) (Max) @ If:
- 1.8 V @ 2500 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 mA @ 6500 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 160°C
D1481N65TXPSA1 FAQ
1.How can I place an order for D1481N65TXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D1481N65TXPSA1 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 D1481N65TXPSA1 reliable?
The price and inventory of D1481N65TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D1481N65TXPSA1 is usually 5 days.
3.What payment methods are accepted for D1481N65TXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D1481N65TXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D1481N65TXPSA1?
D1481N65TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D1481N65TXPSA1 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 D1481N65TXPSA1?
For technical support, including D1481N65TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D1481N65TXPSA1 requirements.
6.How does Aetrix verify that D1481N65TXPSA1 is sourced from the original manufacturer or authorized distributors?
All D1481N65TXPSA1 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 D1481N65TXPSA1 meets industry standards.
7.What is the process for return or replacement of D1481N65TXPSA1?
All D1481N65TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D1481N65TXPSA1, 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 D1481N65TXPSA1 part is unused and in its original packaging.
Return procedure for D1481N65TXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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