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Infineon Technologies D1800N46TVFXPSA1
- Part No.:
- D1800N46TVFXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AC, K-PUK
- Datasheet:
-
D1800N46TVFXPSA1.pdf
- Description:
- DIODE GEN PURP 4.6KV 1800A
- Quantity:
- Payment:
- Shipping:
Inventory:3,605
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Product details
Overview
D1800N46TVFXPSA1 from Infineon Technologies is a high-power, press-pack silicon rectifier diode designed for industrial AC/DC conversion in medium- to high-voltage traction and grid applications. It delivers 1800 A average on-state current at 100 °C case temperature, supports 4600 V repetitive peak reverse voltage, and handles 35 kA surge current (10 ms, 25 °C), operating up to 160 °C junction temperature.
For engineers reviewing the D1800N46TVFXPSA1 datasheet, D1800N46TVFXPSA1 pinout, D1800N46TVFXPSA1 application, or D1800N46TVFXPSA1 equivalent, key selection criteria include its two-sided cooling capability, 0.0169 °C/W junction-to-case thermal resistance, low 0.253 mΩ slope resistance, and validated performance under 50 Hz sinusoidal half-wave overload sequences up to 30 pulses at 3.2 kA.
Technical Context
This device is a single-die, pressure-contact, stud-mounted rectifier diode with symmetrical anode/cathode metallization optimized for bidirectional heat extraction. Its on-state characteristic follows a four-parameter logarithmic model (A=−0.7537, B=3.748×10⁻⁴, C=0.3443, D=−0.0266) valid from 500 A to 9000 A at Tvj = 160 °C.
Thermal behavior is defined by analytical transient impedance ZthJC functions for three cooling modes: two-sided (baseline), anode-sided, and cathode-sided. The DC thermal resistance varies with conduction angle (e.g., ΔZth = 0.00126 °C/W increase for 180° rectangular conduction under two-sided cooling).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 4600 V - Maximum repetitive reverse voltage; defines blocking capability in HV DC link applications |
| IFAVM @ TC = 100 °C | 1800 A - Continuous DC forward current rating under forced two-sided cooling at 100 °C case temp |
| IFSM (10 ms) | 35000 A - Short-circuit robustness; enables use in fault-tolerant converter topologies without immediate fuse intervention |
| RthJC (two-sided) | 0.0169 °C/W - Thermal path efficiency enabling >4 kW steady-state dissipation with <10 K rise across junction-to-case |
| vF @ 7.4 kA | 2.82 V - Forward voltage at extreme overload; determines conduction loss contribution during transient overcurrent events |
| Qr @ −di/dt = 100 A/µs | ~100 µAs - Recovered charge affecting snubber sizing and switching losses in phase-controlled rectifiers |
| Tvj max | 160 °C - Maximum junction temperature; sets upper limit for thermal design margin in sealed or high-ambient enclosures |
Pinout & Package
Package: Press-pack, double-side cooled, stud-mounted rectifier diode with isolated copper baseplate. Mechanical interface per Annex Page 3 of datasheet: Anode and Cathode terminals are flat, threaded studs (M12 × 1.75 mm thread, 24–60 kN clamping force required). Weight ≈ 600 g; creepage distance = 25 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Stud) | Forward current entry point | Must be mounted to heatsink with ≥24 kN clamping force; serves as primary thermal and electrical path for incoming AC line current |
| Cathode (Stud) | Forward current exit point | Electrically isolated from Anode; mounts to second heatsink surface; enables symmetric thermal extraction in dual-sink configurations |
Key Features
| Feature | Design Value |
|---|---|
| Two-sided cooling architecture | Enables 0.0169 °C/W RthJC, reducing thermal bottleneck in high-power converters where single-sink mounting is insufficient |
| High I²t rating (6125 ×10³ A²s) | Supports sustained short-duration overloads (e.g., motor startup surges) without junction failure |
| Low slope resistance (0.253 mΩ) | Minimizes conduction loss drift across load range-critical for efficiency optimization in 3–6 MW industrial drives |
| Validated 50 Hz pulse sequence endurance | Rated for ≥30 half-wave pulses at 3.2 kA peak under 0.67 VRRM reverse bias-proven for railway traction rectifier duty cycles |
| Pressure-contact Si pellet | Eliminates wire bonds and solder layers, improving long-term thermal cycling reliability in high-di/dt environments |
Applications
| Railway Traction Rectification | Medium-Voltage Industrial Drives |
|---|---|
Use Scenario: AC-fed locomotive main converter using six-pulse or twelve-pulse thyristor/diode bridge to supply DC link for traction inverters. IC Role / Device Role / Timing Role: Uncontrolled rectifier element in high-current, high-voltage bridge arms; operates at 50/60 Hz fundamental with harmonic-rich current waveforms. Use Value: 4600 V VRRM and 35 kA IFSM ensure safe operation during regenerative braking transients and line-voltage swells. | Use Scenario: Front-end rectification in multi-megawatt variable-frequency drives for mining conveyors or steel mill rolling stands. IC Role / Device Role / Timing Role: Main power conversion stage converting 6.6 kV or 11 kV utility AC to stable DC bus; thermally managed via liquid-cooled dual heatsinks. Use Value: Two-sided cooling and 0.0169 °C/W RthJC allow continuous 1800 A output without derating in ambient >55 °C cabinet environments. |
| Grid-Scale HVDC Converter Stations | High-Power Electrolysis Systems |
Use Scenario: Valve group in line-commutated converter (LCC) for ±320 kV HVDC transmission interconnects. IC Role / Device Role / Timing Role: Series-stacked diode in thyristor-based valve assembly; subjected to fast-recovery stress during commutation failure events. Use Value: Low Qr (~100 µAs at 100 A/µs) and controlled recovery reduce voltage overshoot and snubber energy requirements in multi-kV stacks. | Use Scenario: DC power supply for large-scale chlor-alkali electrolysis cells requiring >100 kA total DC current at 300–400 V. IC Role / Device Role / Timing Role: Parallel-connected rectifier in modular transformer-rectifier units (TRUs); operated at near-DC with minimal ripple. Use Value: 2550 A IFAVM @ 55 °C enables high-density parallel layouts with reduced busbar heating and footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage, high-current rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD900N46K | Same VRRM (4600 V), but lower IFAVM (1200 A @ 100 °C); RthJC = 0.025 °C/W (two-sided) | Suitable for lower-power auxiliary rectifiers or redundancy modules-not rated for primary 1800 A DC bus duty | Select when thermal budget allows higher RthJC and system-level current sharing reduces per-device loading |
| SKKH 1800/46 | Identical IFAVM and VRRM, but uses solder-bonded die and single-sided cooling; RthJC = 0.032 °C/W (anode) | Designed for air-cooled or compact chassis-mounting; lacks pressure-contact reliability for >10⁶ thermal cycles | Prefer for space-constrained industrial UPS or backup systems where maintenance access limits re-clamping intervals |
Compared with DD900N46K and SKKH 1800/46, D1800N46TVFXPSA1 uniquely combines 1800 A DC rating, 0.0169 °C/W two-sided thermal resistance, and pressure-contact construction-making it the only option qualified for primary rectification in mission-critical, high-cycle, liquid-cooled traction and grid infrastructure.
Availability
D1800N46TVFXPSA1 is available at Aetrix Electronics and suitable for railway traction converters, medium-voltage industrial drives, and grid-scale HVDC valve assemblies requiring stable component supply across multi-year production programs.
Supply support for D1800N46TVFXPSA1 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 part belongs to Infineon's "High Power Diodes" product line, engineered specifically for high-reliability, high-current rectification in utility-scale power conversion, rail propulsion, and heavy industrial automation.
FAQ
What is the recommended clamping force for D1800N46TVFXPSA1 installation?
The datasheet specifies a clamping force range of 24–60 kN for reliable pressure contact between the Si pellet and both heatsink surfaces. Use calibrated torque tools with M12 × 1.75 studs and hardened washers; under-torque risks thermal runaway, while over-torque may deform the copper baseplate or damage internal metallization.
Can D1800N46TVFXPSA1 be used in avalanche mode?
No. This is a standard PN junction rectifier diode without avalanche energy rating or ruggedness specification. It must operate strictly within its VRRM limit (4600 V) and should never be exposed to reverse voltages exceeding that value-even transiently-without external crowbar or snubber protection.
Is there a gate or control terminal on this device?
No. D1800N46TVFXPSA1 is an uncontrolled rectifier diode with no gate, control input, or switching logic. It conducts when forward-biased above ~0.85 V threshold and blocks when reverse-biased-its behavior is purely passive and determined by circuit voltage polarity and magnitude.
What is the maximum allowable case temperature during DC operation?
The absolute maximum case temperature is 160 °C, matching the rated Tvj max. However, for 1800 A DC operation, the datasheet graph on page 6 shows TC must be held ≤100 °C. At higher currents (e.g., 2550 A), TC must be reduced to 55 °C-thermal design must enforce these limits via active cooling and thermal interface material selection.
D1800N46TVFXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AC, K-PUK
- Packaging:
- Tray
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 4600 V
- Current - Average Rectified (Io):
- 1800A
- Voltage - Forward (Vf) (Max) @ If:
- 1.32 V @ 1500 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 mA @ 4600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 160°C
D1800N46TVFXPSA1 FAQ
1.How can I place an order for D1800N46TVFXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D1800N46TVFXPSA1 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 D1800N46TVFXPSA1 reliable?
The price and inventory of D1800N46TVFXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D1800N46TVFXPSA1 is usually 5 days.
3.What payment methods are accepted for D1800N46TVFXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D1800N46TVFXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D1800N46TVFXPSA1?
D1800N46TVFXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D1800N46TVFXPSA1 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 D1800N46TVFXPSA1?
For technical support, including D1800N46TVFXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D1800N46TVFXPSA1 requirements.
6.How does Aetrix verify that D1800N46TVFXPSA1 is sourced from the original manufacturer or authorized distributors?
All D1800N46TVFXPSA1 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 D1800N46TVFXPSA1 meets industry standards.
7.What is the process for return or replacement of D1800N46TVFXPSA1?
All D1800N46TVFXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D1800N46TVFXPSA1, 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 D1800N46TVFXPSA1 part is unused and in its original packaging.
Return procedure for D1800N46TVFXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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