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Infineon Technologies D400K16BXPSA1
- Part No.:
- D400K16BXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-205AA, DO-8, Stud
- Datasheet:
-
D400K16BXPSA1.pdf
- Description:
- DIODE GEN PURP 1.6KV 450A
- Quantity:
- Payment:
- Shipping:
Inventory:5,649
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Product details
Overview
D400K16BXPSA1 from Eupec (now Infineon Technologies) is a 1600 V, 400 A mean forward current, press-pack silicon power rectifier diode with dual-sided cooling capability, rated for 180 °C junction temperature and used in high-power industrial DC drives and traction converters.
For engineers reviewing the D400K16BXPSA1 datasheet, D400K16BXPSA1 pinout, D400K16BXPSA1 application, or D400K16BXPSA1 equivalent, key selection criteria include repetitive peak reverse voltage (VRRM), RMS forward current (IFRMSM), thermal resistance (RthJC), surge current (IFSM), and pressure-contact mechanical interface compatibility.
Technical Context
This device is a planar, diffusion-controlled, fast-recovery power diode optimized for line-frequency and medium-frequency rectification in high-current, high-voltage applications. Its design features a 30 mm silicon pellet with double-sided copper heat path, enabling low RthJC (0.094 °C/W DC) and high I²t rating (470.5 kA²s at 180 °C).
It operates with anode-to-case polarity and requires controlled mechanical clamping (60 Nm torque) to maintain stable thermal and electrical contact. The device exhibits a threshold voltage (VT(TO)) of 0.7 V and slope resistance (rT) of 0.58 mΩ at maximum junction temperature, defining its conduction loss profile under high-current conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1600 V - Maximum repetitive reverse blocking voltage; defines safe AC line voltage derating margin in 3-phase bridge rectifiers. |
| IFAVM @ tc=130°C | 400 A - Mean forward current under case-cooled thermal condition; sets continuous DC output capability in motor drives. |
| IFRMSM | 710 A - RMS forward current rating; determines thermal stress under non-sinusoidal load currents (e.g., six-pulse rectification). |
| IFSM (10 ms) | 12.2 kA - Non-repetitive surge current; supports short-circuit withstand in converter protection schemes. |
| RthJC (DC) | 0.094 °C/W - Junction-to-case thermal resistance; enables precise heatsink sizing for forced-air or liquid-cooled systems. |
| VT max @ 1.4 kA | 1.57 V - Maximum on-state voltage at high current; directly impacts conduction losses and system efficiency at full load. |
| Qr (typ.) | Not specified in provided data - recovered charge not quantified; indicates need for external snubber design per Fig. 6 conditions. |
Pinout & Package
Package: Press-pack, double-sided cooled, B-type housing with M24×1.5 threaded stud anode and cathode terminals; 70 mm² copper baseplate; weight ≈ 600 g; creepage distance 21 mm; humidity class C per DIN 40040.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Stud) | High-side current entry | M24×1.5 threaded copper stud; must be torqued to 60 Nm for reliable thermal/electrical contact to heatsink. |
| Cathode (Stud) | Low-side current exit | Identical M24×1.5 threaded stud; polarity is anode = case, requiring insulated mounting for cathode-side grounding. |
| Case | Anode reference / thermal path | Electrically active anode terminal; serves as primary heat conduction surface to heatsink on both sides. |
Key Features
| Feature | Design Value |
|---|---|
| Double-sided cooling interface | Enables 0.094 °C/W DC thermal resistance - reduces heatsink size and improves power density in space-constrained converters. |
| 180 °C maximum junction temperature | Supports operation in high-ambient environments (e.g., locomotive underhood, steel mill drives) without derating. |
| Pressure-contact Si pellet (Ø30 mm) | Eliminates wire bonds and solder layers - improves long-term reliability under thermal cycling and vibration. |
| High I²t rating (470.5 kA²s) | Ensures robust short-circuit survival in 3-phase rectifier bridges without immediate failure during fault events. |
| Anode-to-case polarity | Simplifies mounting in grounded-anode topologies (e.g., half-wave rectifier stacks), reducing isolation requirements. |
Applications
| Railway Traction Rectifier | Industrial DC Drive |
|---|---|
Use Scenario: Main rectifier stage in 1500 V DC or 25 kV AC locomotive auxiliary power supply. IC Role / Device Role / Timing Role: High-current, high-voltage uncontrolled rectification with dual-sided liquid cooling. Use Value: 12.2 kA surge rating and 180 °C junction tolerance ensure reliability during pantograph arcing and overload transients. | Use Scenario: Six-pulse rectifier feeding 500 kW DC motor in rolling mill drive cabinet. IC Role / Device Role / Timing Role: Line-frequency power conversion with forced-air heatsink and mechanical clamping. Use Value: 400 A mean forward current and 0.094 °C/W RthJC enable stable operation at 100% duty cycle without thermal runaway. |
| Medium-Voltage UPS Input Stage | Renewable Energy Grid Interface |
Use Scenario: Input rectifier in 600 kW online UPS handling generator-fed utility fluctuations. IC Role / Device Role / Timing Role: Unidirectional energy transfer from AC source to DC bus with overvoltage clamping. Use Value: 1600 V VRRM provides 20% margin above 1380 V line-to-line peak, preventing spurious conduction during transients. | Use Scenario: Grid-side rectifier in 1 MW solar thermal plant inverter stack. IC Role / Device Role / Timing Role: High-efficiency DC link charging under variable irradiance and ambient temperature swings. Use Value: -40 °C to +180 °C operating range ensures startup and operation in desert or arctic climates without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD400S16K2 (Infineon) | Same VRRM (1600 V), lower IFAVM (360 A @ 130 °C), identical package and clamping interface. | Lower continuous current rating limits use in sustained 400 A loads without additional derating. | Select when thermal margin exists or average load is ≤360 A; retains same mechanical integration. |
| SKKT 400/16 E (Semikron) | 1600 V VRRM, 400 A IFAVM, but uses isolated stud package (no anode-to-case polarity); RthJC = 0.11 °C/W. | Requires insulated mounting and larger heatsink due to higher thermal resistance and different polarity scheme. | Select when system-level isolation is required or existing SKiiP module infrastructure is in place. |
Compared with DD400S16K2 and SKKT 400/16 E, D400K16BXPSA1 delivers superior thermal performance (0.094 °C/W) and full 400 A rating at 130 °C case temperature, making it optimal for thermally constrained, high-duty-cycle rectifier stacks where mechanical anode-grounding simplifies layout.
Availability
D400K16BXPSA1 is available at Aetrix Electronics and suitable for railway traction rectifiers, industrial DC drives, medium-voltage UPS input stages, and renewable energy grid interfaces requiring stable component supply across multi-year production cycles.
Supply support for D400K16BXPSA1 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
Eupec GmbH + Co. KG was a European power semiconductor specialist acquired by Infineon Technologies in 2000; known for high-reliability press-pack diodes and thyristors for industrial and traction markets.
This part belongs to Eupec's D400N series of high-current, high-voltage press-pack rectifiers designed specifically for ruggedized, maintenance-free operation in heavy-duty power conversion systems.
FAQ
What is the correct mounting torque for D400K16BXPSA1?
The specified tightening torque is 60 Nm applied to both the anode and cathode M24×1.5 studs. This value ensures optimal contact pressure between the 30 mm silicon pellet and copper baseplate, maintaining the rated RthJC of 0.094 °C/W and preventing localized hot spots or interfacial resistance rise during long-term operation.
Does D400K16BXPSA1 have a defined reverse recovery time (trr)?
No trr value is provided in the datasheet. Instead, the device specifies recovered charge Qr under defined test conditions (Fig. 6), with Qr dependent on di/dt and VR. Designers must use Qr and di/dt to calculate effective switching losses and select appropriate snubber components (C = 0.68 µF, R = 5.6 Ω per Fig. 6).
Can D400K16BXPSA1 be used in parallel configurations?
Yes, but only with matched dynamic characteristics and balanced mechanical clamping force. The datasheet does not guarantee inherent current sharing; external balancing resistors or inductors are required. Thermal coupling between paralleled units must be identical to avoid thermal runaway, especially given the 0.58 mΩ slope resistance.
Is the case electrically isolated from the terminals?
No - the case is electrically connected to the anode terminal. This anode-to-case polarity means the entire metal housing must be treated as a live high-side conductor. Insulation must be applied to the cathode stud and surrounding structure if the heatsink is grounded or at a different potential.
D400K16BXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-205AA, DO-8, Stud
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1600 V
- Current - Average Rectified (Io):
- 450A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 40 mA @ 1600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -40°C ~ 180°C
D400K16BXPSA1 FAQ
1.How can I place an order for D400K16BXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D400K16BXPSA1 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 D400K16BXPSA1 reliable?
The price and inventory of D400K16BXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D400K16BXPSA1 is usually 5 days.
3.What payment methods are accepted for D400K16BXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D400K16BXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D400K16BXPSA1?
D400K16BXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D400K16BXPSA1 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 D400K16BXPSA1?
For technical support, including D400K16BXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D400K16BXPSA1 requirements.
6.How does Aetrix verify that D400K16BXPSA1 is sourced from the original manufacturer or authorized distributors?
All D400K16BXPSA1 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 D400K16BXPSA1 meets industry standards.
7.What is the process for return or replacement of D400K16BXPSA1?
All D400K16BXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D400K16BXPSA1, 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 D400K16BXPSA1 part is unused and in its original packaging.
Return procedure for D400K16BXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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