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Infineon Technologies DD171N14KHPSA1
- Part No.:
- DD171N14KHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
DD171N14KHPSA1.pdf
- Description:
- DIODE MOD GP 1400V 171A MOD
- Quantity:
- Payment:
- Shipping:
Inventory:5,387
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Product details
Overview
DD171N14KHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 1400 V repetitive peak reverse voltage (VRRM), 171 A average on-state current (IFAVM) at TC = 100°C, and 270 A RMS on-state current (IFRMSM), designed for high-power industrial AC/DC conversion in six-pulse bridge configurations.
For engineers reviewing the DD171N14KHPSA1 datasheet, DD171N14KHPSA1 pinout, DD171N14KHPSA1 application, or DD171N14KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.126 °C/W per arm), surge current rating (5600 A @ 10 ms), and pressure-contact Si pellet construction with AlN internal insulation.
Technical Context
This dual-diode module implements a two-arm, common-cathode configuration with isolated Si pellets mounted via force contact. Each arm supports independent conduction with matched thermal impedance profiles and shares a single insulated copper baseplate.
It operates under full-cycle sinusoidal conduction (Θ = 180°) and is optimized for forced-air-cooled heatsink mounting (e.g., KM17 with Papst 4650 fan), delivering stable performance up to 150 °C junction temperature with 0.75 V threshold voltage (V(TO)) and 0.8 mΩ slope resistance (rT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1400 V - Maximum repetitive reverse blocking voltage per diode arm, defining usable DC bus voltage in B6 rectifiers. |
| IFAVM | 171 A - Continuous average forward current per arm at 100°C case temperature, determining steady-state power handling. |
| IFRMSM | 270 A - RMS forward current rating per arm, used for thermal design under non-sinusoidal load currents. |
| RthJC | 0.126 °C/W - Maximum junction-to-case thermal resistance per arm (DC, Θ = 180°), critical for heatsink sizing. |
| vF max | 1.26 V - Maximum forward voltage drop at 500 A and max junction temperature, directly impacting conduction losses. |
| iR max | 20 mA - Maximum reverse leakage current at VRRM and 150°C, affecting off-state power loss and system efficiency. |
| IFS M | 5600 A - Non-repetitive surge current capability per arm at max junction temperature, enabling short-circuit ride-through. |
| Weight | 310 g - Typical mass, influencing mechanical mounting and thermal inertia in high-vibration environments. |
Pinout & Package
DD171N14KHPSA1 uses a press-pack package with isolated copper baseplate and pressure-contact terminals. No soldered leads; electrical connections are made via M2 terminal screws (6 Nm torque) on anodized aluminum housing. Mounting interface conforms to SEMIKRON's standard double-sided cooling footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| K1 (Cathode 1) | Common cathode output for Arm 1 | Primary DC output node for first diode arm; electrically isolated from baseplate. |
| A1 (Anode 1) | Anode input for Arm 1 | AC phase input connection point for first diode arm; requires insulated busbar routing. |
| K2 (Cathode 2) | Common cathode output for Arm 2 | Second DC output node; internally tied to K1 in common-cathode topology. |
| A2 (Anode 2) | Anode input for Arm 2 | AC phase input for second diode arm; symmetrical layout enables balanced current sharing. |
| Baseplate | Thermal & electrical reference plane | Electrically isolated (3.0 kV RMS test voltage) AlN-ceramic insulated copper base; serves as primary heat path to heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact Si pellet | Enables reversible mechanical assembly and eliminates wire-bond fatigue failure modes in high-cycle applications. |
| AlN internal insulation | Provides 3.0 kV RMS isolation between baseplate and terminals, supporting safe operation in grounded-heatsink systems. |
| Dual-arm symmetry | Matched RthJC (0.126 °C/W) and vF (≤1.26 V) across arms ensures balanced thermal and electrical loading in B6 bridges. |
| High I²t rating | 157,000 A²s at Tvj max enables robust short-circuit protection coordination with fast-acting fuses or breakers. |
| M2 terminal torque spec | 6 Nm ±10% ensures repeatable low-resistance contact without damaging ceramic insulation or terminal threads. |
Applications
| Industrial Motor Drives | Renewable Energy Inverters |
|---|---|
Use Scenario: Six-pulse rectification stage in 300–500 kW variable-frequency drives feeding induction motors. IC Role / Device Role / Timing Role: Dual-arm rectifier module providing bidirectional AC input handling and unidirectional DC output with shared cathode topology. Use Value: Enables 171 A continuous DC link current at 100°C case temperature while maintaining <1.26 V conduction drop and <20 mA leakage at 1400 V blocking. | Use Scenario: Grid-side rectification in medium-voltage solar central inverters with active front-end topologies. IC Role / Device Role / Timing Role: High-reliability AC/DC conversion element operating under forced-air cooling with KM17 heatsinks. Use Value: Delivers 5600 A surge current tolerance and 157,000 A²s I²t rating for fault ride-through during grid transients. |
| Uninterruptible Power Supplies | Railway Traction Converters |
Use Scenario: Input rectifier in 200 kVA online UPS systems requiring high availability and thermal margin. IC Role / Device Role / Timing Role: Dual-diode module configured in parallel B6 arrangement to support redundant power paths. Use Value: 0.126 °C/W RthJC per arm allows stable operation at 150°C junction temperature under sustained overload conditions. | Use Scenario: Line-side converter in 1.5 MW locomotive traction systems using regenerative braking feedback. IC Role / Device Role / Timing Role: Press-pack rectifier module mounted on liquid-cooled cold plates for vibration-resistant power conversion. Use Value: 310 g mass and 15 mm creepage distance meet EN 50155 mechanical and insulation requirements for rail applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current rectifier module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SKD 171/14 | Same VRRM (1400 V), lower IFAVM (160 A), higher RthJC (0.135 °C/W per arm) | Suitable for lower-duty-cycle applications with reduced thermal margin requirements | Select when cost sensitivity outweighs need for 171 A continuous rating and tighter thermal resistance. |
| DD171N16KHPSA1 | Higher VRRM (1600 V), identical IFAVM (171 A), same RthJC (0.126 °C/W) | Required where system DC bus may exceed 1400 V during transient overvoltage events | Choose for enhanced safety margin in HVDC coupling or generator excitation systems with elevated voltage stress. |
Compared with SKD 171/14 and DD171N16KHPSA1, DD171N14KHPSA1 offers optimal balance of 1400 V blocking, 171 A thermal rating, and 0.126 °C/W thermal resistance-making it ideal for industrial B6 rectifiers operating near nominal voltage limits without over-specifying voltage headroom.
Availability
DD171N14KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, uninterruptible power supplies, and railway traction converters requiring stable component supply and long-term lifecycle support.
Supply support for DD171N14KHPSA1 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.
This part belongs to Semikron's DD-series press-pack rectifier modules, engineered for high-power AC/DC conversion in harsh environments where solder-free construction and ceramic insulation ensure long-term reliability under thermal cycling and vibration.
FAQ
What is the maximum allowable case temperature for continuous operation?
The maximum allowable case temperature (TC op) is +150°C, consistent with the maximum junction temperature (Tvj max = 150°C) and thermal resistance specification. Operation at this limit requires verified heatsink performance and forced-air or liquid cooling to maintain junction temperature within rating.
Is DD171N14KHPSA1 suitable for natural convection cooling?
Yes, but only at significantly derated current levels. The datasheet provides transient thermal impedance data for natural cooling (KM17, 60W heatsink); at 100°C case temperature, continuous current must be limited to approximately 110 A per arm to avoid exceeding 150°C junction temperature.
Does this module require gate drive or control signals?
No. DD171N14KHPSA1 is an uncontrolled power diode module with no gate terminals or control interface. It conducts automatically when forward-biased and blocks when reverse-biased, making it suitable for passive rectification without auxiliary circuitry.
How is isolation verified between terminals and baseplate?
Isolation is validated by a 3.0 kV RMS, 50 Hz, 1-second dielectric withstand test between all terminals and the baseplate, per IEC 60747-1. The internal AlN ceramic substrate provides the primary insulation barrier, rated for continuous operation at 150°C junction temperature.
DD171N14KHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- DD171N
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1400 V
- Current - Average Rectified (Io) (per Diode):
- 171A
- Voltage - Forward (Vf) (Max) @ If:
- 1.26 V @ 500 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 mA @ 1400 V
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- Module
DD171N14KHPSA1 FAQ
1.How can I place an order for DD171N14KHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DD171N14KHPSA1 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 DD171N14KHPSA1 reliable?
The price and inventory of DD171N14KHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DD171N14KHPSA1 is usually 5 days.
3.What payment methods are accepted for DD171N14KHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DD171N14KHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DD171N14KHPSA1?
DD171N14KHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DD171N14KHPSA1 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 DD171N14KHPSA1?
For technical support, including DD171N14KHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DD171N14KHPSA1 requirements.
6.How does Aetrix verify that DD171N14KHPSA1 is sourced from the original manufacturer or authorized distributors?
All DD171N14KHPSA1 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 DD171N14KHPSA1 meets industry standards.
7.What is the process for return or replacement of DD171N14KHPSA1?
All DD171N14KHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with DD171N14KHPSA1, 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 DD171N14KHPSA1 part is unused and in its original packaging.
Return procedure for DD171N14KHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DD171N14KHPSA1 Tags
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