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Infineon Technologies DZ950N36KHPSA1
- Part No.:
- DZ950N36KHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
DZ950N36KHPSA1.pdf
- Description:
- DIODE GEN PURP 3.6KV 950A MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:8,520
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Product details
Overview
DZ950N36KHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 3600 V repetitive peak reverse voltage, 950 A average on-state current per arm at TC = 100 °C, and 1500 A RMS on-state current - designed for high-power industrial AC/DC conversion in six-pulse bridge (B6) configurations in traction converters and medium-voltage UPS systems.
For engineers reviewing the DZ950N36KHPSA1 datasheet, DZ950N36KHPSA1 pinout, DZ950N36KHPSA1 application, or DZ950N36KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.042 °C/W), surge current capability (35 kA @ 10 ms), pressure-contact Si pellet construction, and forced-cooled operation with KW70 heatsink compatibility.
Technical Context
This dual-arm rectifier module integrates two independent high-voltage silicon diode dies in a single press-pack housing with AlN internal insulation and direct pressure contact. It supports both two-pulse (B2) and six-pulse (B6) bridge topologies, with thermal performance defined by transient junction-to-case impedance ZthJC and case-to-ambient RthCA under forced water cooling (4 L/min).
Electrical behavior is characterized by low conduction loss (VF ≤ 1.78 V @ 3000 A, Tvj = 160 °C), tight threshold voltage (V(TO) = 0.85 V), and slope resistance (rT = 0.28 mΩ), enabling efficient operation at high current density while maintaining safe reverse leakage (<100 mA @ VRRM, Tvj = 160 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 3600 V - Maximum repetitive reverse blocking voltage per diode arm; defines usable DC bus voltage in B6 rectifiers up to 2.5 kV line-to-line. |
| IFAVM | 950 A - Average forward current per arm at TC = 100 °C; sets continuous power rating in thermally managed industrial drives. |
| IFRMSM | 1500 A - RMS on-state current rating; determines I²t withstand and thermal cycling capability under sinusoidal conduction. |
| RthJC | 0.042 °C/W - Junction-to-case thermal resistance (DC); enables precise heatsink sizing for 160 °C max junction temperature. |
| vF max | 1.78 V @ 3000 A, Tvj = 160 °C - Peak forward voltage drop; directly impacts conduction loss and thermal design margin. |
| IFS M | 35,000 A @ 10 ms, Tvj = 25 °C - Non-repetitive surge current; supports short-circuit ride-through in motor drive DC links. |
| Qr | Measured recovered charge dependent on -di/dt and iFM; critical for snubber design in high-dV/dt switching environments. |
Pinout & Package
Package: Press-pack dual-diode module with isolated copper baseplate, AlN ceramic insulation, and M1 (6 Nm) mechanical / M2 (18 Nm) terminal mounting torque specification. Weight: 2750 g. Creepage distance: 64 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode arm | High-current input node for one leg of B2/B6 bridge; requires low-inductance busbar connection. |
| Cathode 1 (K1) | Output terminal for first diode arm | Common cathode node shared with second arm in center-tap configuration; defines DC+ output polarity. |
| Anode 2 (A2) | Input terminal for second diode arm | Independent AC-phase input for second arm; enables full-wave rectification without internal series/parallel coupling. |
| Cathode 2 (K2) | Output terminal for second diode arm | Electrically isolated cathode path; allows dual-output or split-bus operation when used with external isolation. |
| Baseplate (Case) | Thermal and electrical reference plane | Internally insulated but thermally conductive surface; must be mounted to heatsink with uniform pressure and dielectric grease. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact Si pellet | Eliminates wire bonds and solder interfaces, improving thermal cycling reliability and current sharing in parallel modules. |
| AlN ceramic insulation | Provides 3.6 kV RMS isolation (1 sec) and stable dielectric strength across -40 to +150 °C operating range. |
| Transient thermal modeling support | Published ZthJC analytical R-τ network (7-element) enables accurate dynamic junction temperature prediction in real-time control. |
| Water-cooling optimized design | Validated with KW70 heatsink at 4 L/min flow; achieves 0.01 °C/W case-to-heatsink resistance (RthCH) under forced convection. |
Applications
| Rail Traction Converter | Industrial Medium-Voltage UPS |
|---|---|
Use Scenario: Rectifying 3.3 kV AC grid input to stable DC link for IGBT-based inverters in locomotive propulsion systems. IC Role / Device Role / Timing Role: Dual-arm diode module serving as uncontrolled front-end rectifier in B6 configuration with active pre-charge and fault isolation. Use Value: 35 kA surge rating ensures ride-through during catenary voltage dips; 0.042 °C/W RthJC enables compact heatsink integration within constrained underfloor space. |
Use Scenario: High-efficiency AC/DC conversion in 6-pulse rectifier stage of 1–3 MVA uninterruptible power supplies for data centers. IC Role / Device Role / Timing Role: Mainline rectification element handling continuous 950 A/arm load with harmonic filtering and regenerative braking support. Use Value: Low VF (1.78 V) and rT (0.28 mΩ) reduce conduction losses by >12% vs. legacy 3300 V modules, improving system efficiency to >98.2%. |
| Steel Mill Rolling Drive | Offshore Wind Turbine Converter |
Use Scenario: DC excitation supply and main rectification for multi-MW DC motors driving hot/cold rolling stands under high thermal cycling. IC Role / Device Role / Timing Role: Primary rectifier in dual-B6 topology with redundant arm configuration for fault-tolerant operation. Use Value: Pressure-contact construction withstands >100,000 thermal cycles; creepage distance (64 mm) meets IEC 61800-5-1 pollution degree 3 requirements. |
Use Scenario: Grid-side rectification in offshore wind turbine converters interfacing 35 kV medium-voltage collection grids via step-up transformers. IC Role / Device Role / Timing Role: High-reliability passive rectifier in hybrid converter architecture where redundancy and long service life are mandatory. Use Value: 160 °C max junction temperature and -40 °C storage rating ensure operation in harsh marine environments with minimal derating. |
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 |
|---|---|---|---|
| DD950N36K | Same VRRM (3600 V) and IFAVM (950 A), but uses solder-bonded die and lower surge rating (30 kA @ 10 ms). | Limited to air-cooled or low-duty-cycle applications due to higher RthJC (0.048 °C/W) and no transient Zth model. | Select when cost sensitivity outweighs thermal modeling needs and surge margin is acceptable. |
| SKD950N36 | Identical ratings and press-pack construction, but lacks published ZthJC R-τ network and has tighter Qr tolerance band. | Suitable for fixed-frequency rectifiers only; not recommended for variable-speed drives with wide di/dt ranges. | Prefer when sourcing from Semikron's SKiiP® ecosystem and standardized gate driver interface is required. |
Compared with DD950N36K and SKD950N36, DZ950N36KHPSA1 offers superior thermal predictability via analytical ZthJC modeling, higher surge margin, and validated KW70 water-cooling performance - making it optimal for mission-critical, dynamically loaded rectifier systems.
Availability
DZ950N36KHPSA1 is available at Aetrix Electronics and suitable for rail traction converters, industrial medium-voltage UPS systems, steel mill rolling drives, and offshore wind turbine converters requiring stable component supply and long-term lifecycle support.
Supply support for DZ950N36KHPSA1 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
Semikron is a German power semiconductor manufacturer specializing in high-reliability modules for industrial, energy, and transportation applications since 1951.
DZ950N36KHPSA1 belongs to the DZ950N press-pack diode module family, engineered for ultra-high-power AC/DC conversion in harsh-environment applications demanding extended thermal cycling life and precise thermal modeling.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum case temperature is +150 °C, aligned with the storage temperature range and supported by thermal derating curves in the datasheet. At TC = 150 °C, the average forward current per arm is reduced to approximately 620 A to maintain Tvj ≤ 160 °C under DC conduction with Θ = 180° sine.
Is DZ950N36KHPSA1 compatible with standard press-pack heatsinks?
Yes - it is mechanically and thermally qualified for use with Semikron KW70 heatsinks at 4 L/min water flow, achieving RthCH ≤ 0.01 °C/W. Mounting requires M2 terminals torqued to 18 Nm ±10% and uniform baseplate pressure per the datasheet's mechanical specification.
Does this module require external snubbers?
Yes - recovery charge (Qr) varies significantly with -di/dt and forward current; the datasheet specifies snubber components (R = 2.7 Ω, C = 1.5 µF) for test conditions. Snubber design must be re-validated for actual system dV/dt and commutation frequency.
Can DZ950N36KHPSA1 be paralleled with identical units?
Yes - its pressure-contact construction and matched V(TO)/rT parameters enable natural current sharing. Parallel operation requires symmetrical busbar layout, matched thermal paths, and individual current monitoring per arm to ensure <5% current imbalance under full load.
DZ950N36KHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 3600 V
- Current - Average Rectified (Io):
- 950A
- Voltage - Forward (Vf) (Max) @ If:
- 1.78 V @ 3000 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 mA @ 3600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- Module
- Operating Temperature - Junction:
- -40°C ~ 150°C
DZ950N36KHPSA1 FAQ
1.How can I place an order for DZ950N36KHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ950N36KHPSA1 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 DZ950N36KHPSA1 reliable?
The price and inventory of DZ950N36KHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ950N36KHPSA1 is usually 5 days.
3.What payment methods are accepted for DZ950N36KHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ950N36KHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ950N36KHPSA1?
DZ950N36KHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ950N36KHPSA1 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 DZ950N36KHPSA1?
For technical support, including DZ950N36KHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ950N36KHPSA1 requirements.
6.How does Aetrix verify that DZ950N36KHPSA1 is sourced from the original manufacturer or authorized distributors?
All DZ950N36KHPSA1 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 DZ950N36KHPSA1 meets industry standards.
7.What is the process for return or replacement of DZ950N36KHPSA1?
All DZ950N36KHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with DZ950N36KHPSA1, 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 DZ950N36KHPSA1 part is unused and in its original packaging.
Return procedure for DZ950N36KHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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