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Infineon Technologies DZ435N40KHPSA1
- Part No.:
- DZ435N40KHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
DZ435N40KHPSA1.pdf
- Description:
- DIODE GEN PURP 4KV 700A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:4
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Product details
Overview
DZ435N40KHPSA1 from Infineon Technologies is a press-pack rectifier diode module rated for 4000 V repetitive peak reverse voltage (VRRM), 435 A average forward current at 100°C case temperature (IFAVM), and 14.5 kA non-repetitive surge current (IFSM). It employs pressure-contact silicon pellet technology with electrically insulated AlN baseplate, targeting high-reliability industrial drive rectification.
For engineers reviewing the DZ435N40KHPSA1 datasheet, DZ435N40KHPSA1 pinout, DZ435N40KHPSA1 application, or DZ435N40KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.078 K/W), on-state voltage (0.84 V threshold, 1.71 V max at 1200 A), and insulated baseplate capability for series-connected high-voltage stacks.
Technical Context
This double-diode press-pack module uses silicon die with pressure-contact metallization to eliminate wire bonds and solder layers, enabling robust thermal cycling and high-current conduction. Its electrically isolated AlN ceramic baseplate supports series connection in multi-level converters without external isolation.
The device operates with 150°C maximum junction temperature and delivers 1100 A RMS forward current under DC conduction. Thermal performance is characterized by transient impedance models for both natural and forced cooling configurations, supporting precise loss and temperature rise calculations in drive and UPS systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 4000 V - Maximum repetitive reverse blocking voltage per diode arm; enables use in 3.3 kV AC input rectifiers |
| IFAVM @ TC=100°C | 435 A - Continuous average forward current rating at heatsink temperature; defines steady-state power handling |
| IFSM @ tP=10 ms | 14500 A - Non-repetitive surge current capacity; determines short-circuit withstand in motor drives |
| vT0 / rT | 0.84 V / 0.6 mΩ - Threshold voltage and slope resistance; used to calculate on-state losses at any forward current |
| RthJC | 0.078 K/W - Junction-to-case thermal resistance per module; critical for heatsink sizing and parallel module derating |
| Visol | 3.6 kV RMS - Insulation test voltage (1 sec, 50 Hz); confirms dielectric integrity of AlN baseplate isolation |
| Weight | 900 g - Mechanical mass affecting mounting stability and vibration resilience in industrial enclosures |
Pinout & Package
Package: Press-pack double-diode module with insulated AlN baseplate, 50 mm × 50 mm footprint, M1 mechanical mounting screws (5 Nm), and M2 terminal bolts (12 Nm) for anode/cathode connections. No plastic encapsulation; direct metal-to-metal thermal interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A1) | Forward current entry for Diode Arm 1 | High-current copper terminal accepting M2 bolt; designed for low-inductance busbar connection |
| Cathode (K1) | Forward current exit for Diode Arm 1 | Electrically isolated from baseplate; shares thermal path but not electrical path with A2/K2 |
| Anode (A2) | Forward current entry for Diode Arm 2 | Independent terminal for second diode arm; enables B6 bridge configuration with shared cathode topology |
| Cathode (K2) | Forward current exit for Diode Arm 2 | Isolated terminal allowing series/parallel interconnection without external insulators |
| Baseplate | Thermal interface & structural ground plane | AlN-ceramic insulated surface rated for 3.6 kV; provides mechanical rigidity and thermal conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact silicon die | Eliminates bond wires and solder interfaces, improving thermal cycling endurance beyond 10,000 cycles |
| Electrically insulated AlN baseplate | Enables direct series stacking of modules up to 12 kV without external isolation barriers |
| Industrial standard package footprint | 50 mm × 50 mm outline with M1/M2 torque specs ensures mechanical compatibility with legacy heatsinks |
| Low RthJC (0.078 K/W) | Supports higher current density than comparable stud-mount diodes, reducing module count per converter leg |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Three-phase six-pulse rectification in 690 V AC variable-frequency drives for HVAC and pump systems. IC Role / Device Role / Timing Role: Main AC–DC conversion stage using B6 bridge configuration with forced-air cooled heatsink. Use Value: 435 A IFAVM rating and 0.078 K/W RthJC enable compact thermal design while sustaining 150°C junction temperature during overload. | Use Scenario: Dual-redundant rectifier front-end in 400 V DC bus UPS systems with battery backup. IC Role / Device Role / Timing Role: High-reliability AC input rectification with parallel module operation and hot-swap capability. Use Value: Pressure-contact construction ensures stable forward voltage over lifetime, minimizing drift-induced imbalance in parallel strings. |
| Battery Charging Systems | Medium-Voltage Converters |
Use Scenario: High-power DC fast charging for industrial battery banks (e.g., 800 V nominal traction batteries). IC Role / Device Role / Timing Role: Primary rectifier in phase-controlled thyristor/diode hybrid front-end with active current limiting. Use Value: 14.5 kA IFSM withstand enables safe operation during inrush and fault conditions without fusing. | Use Scenario: Series-connected rectifier arms in 3.3 kV medium-voltage drive inverters for mining conveyors. IC Role / Device Role / Timing Role: Electrically isolated diode arm in multi-level NPC or cascaded H-bridge topologies. Use Value: 3.6 kV Visol-rated AlN baseplate eliminates need for external isolation transformers or bushings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage, high-current rectifier module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SEMiX453GB126HDs | 1200 V IGBT-based module; lower VRRM, higher switching loss, integrated gate driver | Designed for active rectification (PWM control), not passive line-commutated rectification | Select only if bidirectional power flow or regenerative braking is required |
| DD900N33K | 3300 V VRRM, 900 A IFAVM, same press-pack format and AlN insulation | Higher current rating but lower voltage margin; requires derating for 4000 V system peaks | Preferable for cost-sensitive 3.3 kV systems where 4000 V margin is unnecessary |
Compared with DD900N33K, DZ435N40KHPSA1 trades current headroom for higher voltage safety margin and lower thermal resistance per amp, making it optimal for 4 kV-class drives where reliability under transient overvoltage is critical.
Availability
DZ435N40KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies (UPS), battery charging systems, and medium-voltage converters requiring stable component supply across long production lifecycles.
Supply support for DZ435N40KHPSA1 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 security solutions, with global manufacturing and R&D infrastructure.
This part belongs to Infineon's high-power discrete diode module portfolio, engineered specifically for ruggedized, maintenance-free rectification in industrial drive and energy infrastructure applications.
FAQ
What is the maximum allowable case temperature for continuous operation?
The DZ435N40KHPSA1 has a specified maximum case temperature (Tc op) range of –40°C to +150°C. For continuous rated current (435 A IFAVM), the case must be maintained at ≤100°C per datasheet derating curves; exceeding this requires proportional current reduction per thermal resistance and ambient conditions.
Does this module require thermal compound between baseplate and heatsink?
Yes - a thermally conductive, electrically insulating compound (e.g., silicone-based grease or phase-change pad) is mandatory between the AlN baseplate and heatsink to minimize interfacial thermal resistance. The specified RthCH of 0.02 K/W assumes optimized interface preparation and uniform mounting pressure.
Can DZ435N40KHPSA1 be used in parallel with other modules?
Yes, but only with strict current-sharing design: matched dynamic forward voltage (vF) characteristics, symmetrical busbar layout, identical thermal mounting, and individual current monitoring. The 0.6 mΩ slope resistance enables predictable sharing under DC conditions, though AC harmonics may require external balancing reactors.
What does the "HPSA1" suffix indicate in the full part number?
The "HPSA1" suffix denotes Infineon's internal revision and packaging variant: "HP" = high-power press-pack, "S" = standard AlN insulation, "A1" = first revision of the 4000 V version with updated thermal modeling and torque specifications per Revision 3.3 of the datasheet.
DZ435N40KHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 4000 V
- Current - Average Rectified (Io):
- 700A
- Voltage - Forward (Vf) (Max) @ If:
- 1.71 V @ 1200 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 mA @ 4000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- Module
- Operating Temperature - Junction:
- -40°C ~ 150°C
DZ435N40KHPSA1 FAQ
1.How can I place an order for DZ435N40KHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ435N40KHPSA1 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 DZ435N40KHPSA1 reliable?
The price and inventory of DZ435N40KHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ435N40KHPSA1 is usually 5 days.
3.What payment methods are accepted for DZ435N40KHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ435N40KHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ435N40KHPSA1?
DZ435N40KHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ435N40KHPSA1 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 DZ435N40KHPSA1?
For technical support, including DZ435N40KHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ435N40KHPSA1 requirements.
6.How does Aetrix verify that DZ435N40KHPSA1 is sourced from the original manufacturer or authorized distributors?
All DZ435N40KHPSA1 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 DZ435N40KHPSA1 meets industry standards.
7.What is the process for return or replacement of DZ435N40KHPSA1?
All DZ435N40KHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with DZ435N40KHPSA1, 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 DZ435N40KHPSA1 part is unused and in its original packaging.
Return procedure for DZ435N40KHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DZ435N40KHPSA1 Tags
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