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Infineon Technologies D1481N65TVFXPSA1
- Part No.:
- D1481N65TVFXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AC, K-PUK
- Datasheet:
-
D1481N65TVFXPSA1.pdf
- Description:
- DIODE GP 6.8KV 2200A D7626K-1
- Quantity:
- Payment:
- Shipping:
Inventory:9,775
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Product details
Overview
D1481N65TVFXPSA1 from Infineon Technologies is a high-voltage, high-current press-pack rectifier diode designed for medium-voltage converter and crowbar applications. It delivers 6500 V repetitive peak reverse voltage (VRRM), 1590 A average forward current at 100 °C case temperature (IFAVM), and 28 kA surge current capability (IFSM) in a hermetically sealed ceramic package with dual-sided cooling interface.
For engineers reviewing the D1481N65TVFXPSA1 datasheet, D1481N65TVFXPSA1 pinout, D1481N65TVFXPSA1 application, or D1481N65TVFXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (14 K/kW), threshold voltage (0.75 V), slope resistance (0.42 mΩ), clamping force range (15–36 kN), and reverse recovery charge (11 mAs at 1000 V).
Technical Context
This device is a silicon-based, pressure-contact rectifier diode optimized for high-reliability DC-link and protection circuits in industrial power electronics. Its two-sided cooling architecture supports symmetrical heat extraction, and its hermetic ceramic housing ensures long-term stability under high-humidity and high-voltage stress conditions.
The diode exhibits low conduction loss (VF = 1.80 V max at 2500 A, 160 °C) and controlled reverse recovery behavior (Qr = 11 mAs max, IRM = 300 A max at 1000 V, -di/dt = 10 A/µs), making it suitable for forced-commutated and line-commutated converters where switching transients must be managed without snubber overdesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 6500 V - maximum repetitive reverse blocking voltage, enabling use in 6.5 kV-class medium-voltage drives and pulsed power systems |
| IFAVM @ TC=100°C | 1590 A - continuous forward current rating defining steady-state thermal design margin for dual-sided heatsink mounting |
| IFSM (10 ms) | 28000 A - short-circuit surge withstand capability supporting crowbar fault protection in high-energy systems |
| V(TO) / rT | 0.75 V / 0.42 mΩ - linearized on-state model parameters used to calculate conduction loss across operating current range |
| RthJC | 14 K/kW - junction-to-case thermal resistance under two-sided cooling, directly determining required heatsink thermal mass |
| Qr (VR=1000 V) | 11 mAs - recovered charge during reverse recovery, critical for snubber sizing and EMI prediction in hard-switched topologies |
| Clamping Force | 15–36 kN - mechanical compression range ensuring stable contact resistance and thermal interface integrity over lifetime |
Pinout & Package
Hermetically sealed ceramic press-pack package with diameter 76 mm, contact diameter 50 mm, and height 26 mm. Requires external mechanical clamping for electrical and thermal contact.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (1) | Forward current entry terminal | High-current input node; must be mounted to heatsink with specified clamping force (15–36 kN) to maintain low Rth and stable VF |
| Cathode (2) | Forward current exit terminal | High-current output node; symmetrically cooled in two-sided configuration; polarity-sensitive for crowbar and rectifier orientation |
Key Features
| Feature | Design Value |
|---|---|
| Full 50/60 Hz blocking over wide temperature range | Stable VRRM performance from –40 °C to +160 °C junction, eliminating derating concerns in variable-temperature drive cabinets |
| High DC blocking stability | Max reverse leakage current of only 50 mA at VRRM and Tvj max, ensuring minimal standby losses in HVDC link hold-up |
| High surge current capability | 28 kA IFSM enables direct integration into fault-clearing paths without series fusing in medium-voltage crowbar designs |
| Hermetically sealed ceramic package | Eliminates moisture ingress and partial discharge risk in high-humidity or contaminated industrial environments |
| High case non-rupture current | Withstands mechanical stress up to 36 kN clamping force without housing fracture, supporting long-term reliability in vibration-prone installations |
Applications
| Rectifier for Drives Applications | Medium Voltage Converters |
|---|---|
Use Scenario: AC-to-DC conversion in multi-megawatt variable-frequency drives for mining conveyors and marine propulsion. IC Role / Device Role / Timing Role: Main-line rectifier in 6.5 kV three-phase bridge, handling continuous 1590 A RMS and transient surges up to 28 kA. Use Value: Dual-sided cooling and low RthJC (14 K/kW) enable compact heatsink design while maintaining <160 °C junction temperature under full load. | Use Scenario: DC-link rectification in modular multilevel converters (MMC) for grid-connected energy storage systems. IC Role / Device Role / Timing Role: High-voltage stack element in series-connected diode strings for 6.5 kV DC bus formation. Use Value: Hermetic ceramic housing and 6500 V VRRM ensure long-term insulation integrity and immunity to surface tracking in outdoor substations. |
| Pulsed Power Applications | Crowbar Applications |
Use Scenario: Energy discharge switching in capacitor bank-driven electromagnetic launchers and laser pulsers. IC Role / Device Role / Timing Role: Unidirectional conduction switch triggered after main thyristor turn-off to dump stored magnetic energy. Use Value: Low Qr (11 mAs) and fast IRM decay minimize reverse recovery oscillation, reducing snubber component stress and EMI generation. | Use Scenario: Overvoltage protection bypass in high-power UPS and wind turbine converters during grid faults. IC Role / Device Role / Timing Role: Crowbar diode activated by parallel thyristor to short-circuit DC link and divert fault current away from sensitive IGBTs. Use Value: 28 kA IFSM and high case non-rupture current allow single-device fault-current handling without cascaded protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD900S65K4B | 6500 V VRRM, 1800 A IFAVM, but uses isolated baseplate packaging instead of press-pack; higher RthJC (17.5 K/kW) | Requires bolted heatsink interface rather than clamped assembly; less suited for ultra-high-reliability crowbar stacks | Preferred when standardized mounting and lower assembly complexity outweigh absolute thermal performance needs |
| SKKH 152/65 | 6500 V VRRM, 1500 A IFAVM, press-pack with identical 76 mm diameter but lower IFSM (25 kA) and higher Qr (13.5 mAs) | Marginally lower surge rating and slower recovery limit use in high-dV/dt pulsed power systems | Valid alternative where system-level fault current is capped below 25 kA and snubber design accommodates higher Qr |
Compared with DD900S65K4B and SKKH 152/65, D1481N65TVFXPSA1 offers the lowest RthJC (14 K/kW) and highest IFSM (28 kA) among 6.5 kV press-pack diodes, making it optimal for thermally constrained, high-fault-energy crowbar and drive rectifier roles.
Availability
D1481N65TVFXPSA1 is available at Aetrix Electronics and suitable for medium voltage converters, pulsed power systems, crowbar protection circuits, and high-power drive rectifiers requiring stable component supply and long-lifecycle support.
Supply support for D1481N65TVFXPSA1 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.
This device belongs to Infineon's high-power press-pack diode product line, engineered specifically for robust, maintenance-free operation in mission-critical medium-voltage power conversion and protection systems.
FAQ
What is the recommended clamping force range for D1481N65TVFXPSA1?
The device requires mechanical clamping between 15 kN and 36 kN to ensure stable thermal and electrical contact across its anode and cathode surfaces. Below 15 kN, contact resistance increases, raising VF and RthJC; above 36 kN risks ceramic housing fracture. Torque-controlled hydraulic presses are recommended for repeatable assembly in production environments.
Does D1481N65TVFXPSA1 support two-sided cooling?
Yes - the device is explicitly rated for two-sided cooling, with a maximum RthJC of 14 K/kW under that configuration. Its symmetrical ceramic housing and dual metal contact surfaces allow simultaneous heatsink attachment to both anode and cathode, doubling effective thermal path area versus single-sided mounting.
How does reverse recovery performance affect snubber design?
With Qr = 11 mAs (max) and IRM = 300 A (max) at 1000 V, the diode demands precise RC snubber tuning to absorb reverse recovery energy without excessive voltage overshoot. Higher -di/dt rates increase IRM nonlinearly, so snubbers must be validated at worst-case system dI/dt, not just datasheet test conditions.
Can D1481N65TVFXPSA1 be used in series-string configurations?
Yes - its matched VRRM (6500 V), low leakage (≤50 mA), and uniform thermal impedance support series connection for >13 kV systems. However, dynamic voltage sharing requires active gate-controlled snubbers or passive RC networks per device to compensate for parameter spread and temperature drift.
D1481N65TVFXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AC, K-PUK
- Packaging:
- Tray
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 6800 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 @ 6800 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- BG-D7626K-1
- Operating Temperature - Junction:
- 160°C (Max)
D1481N65TVFXPSA1 FAQ
1.How can I place an order for D1481N65TVFXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D1481N65TVFXPSA1 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 D1481N65TVFXPSA1 reliable?
The price and inventory of D1481N65TVFXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D1481N65TVFXPSA1 is usually 5 days.
3.What payment methods are accepted for D1481N65TVFXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D1481N65TVFXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D1481N65TVFXPSA1?
D1481N65TVFXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D1481N65TVFXPSA1 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 D1481N65TVFXPSA1?
For technical support, including D1481N65TVFXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D1481N65TVFXPSA1 requirements.
6.How does Aetrix verify that D1481N65TVFXPSA1 is sourced from the original manufacturer or authorized distributors?
All D1481N65TVFXPSA1 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 D1481N65TVFXPSA1 meets industry standards.
7.What is the process for return or replacement of D1481N65TVFXPSA1?
All D1481N65TVFXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D1481N65TVFXPSA1, 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 D1481N65TVFXPSA1 part is unused and in its original packaging.
Return procedure for D1481N65TVFXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D1481N65TVFXPSA1 Tags
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