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Infineon Technologies ND171N14KHPSA1
- Part No.:
- ND171N14KHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
ND171N14KHPSA1.pdf
- Description:
- DIODE GEN PURP 1.4KV 104A PB34-1
- Quantity:
- Payment:
- Shipping:
Inventory:6,214
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Product details
Overview
ND171N14KHPSA1 from Semikron is a press-pack dual-diode rectifier module with 1400 V repetitive peak reverse voltage, 171 A average on-state current at TC = 100°C, and 270 A RMS on-state current. It uses silicon die with AlN internal insulation and is rated for 150°C maximum junction temperature, designed for high-power industrial AC/DC conversion in six-pulse bridge configurations.
For engineers reviewing the ND171N14KHPSA1 datasheet, ND171N14KHPSA1 pinout, ND171N14KHPSA1 application, or ND171N14KHPSA1 equivalent, key selection criteria include its 0.126 °C/W max junction-to-case thermal resistance per arm (DC), 1.26 V max forward voltage at 500 A and Tvj max, and 20 mA max reverse leakage at VRRM - all critical for thermal design and conduction loss budgeting in traction and medium-voltage UPS systems.
Technical Context
This dual-arm press-pack diode module implements a symmetrical two-diode configuration optimized for B6 six-pulse bridge rectification. Each arm supports 171 A average current with 6.6 kA non-repetitive surge capability at Tvj = 25°C and 10 ms pulse width.
Thermal performance is defined by analytical transient impedance models (ZthJC) with seven RC network elements, and case-to-heatsink thermal resistance of 0.03 °C/W per module under forced cooling - enabling precise thermal transient simulation for overload and short-circuit duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1400 V - maximum repetitive reverse blocking voltage per diode arm, defining usable DC bus voltage range in 600–800 VAC input systems |
| IFAVM | 171 A - average forward current per arm at TC = 100°C, sets continuous power handling in forced-air-cooled rectifiers |
| IFRMSM | 270 A - RMS on-state current rating, used to calculate I²t-based fuse coordination and thermal cycling limits |
| vF max | 1.26 V - forward voltage at 500 A and max junction temperature, directly determines conduction loss (P = I × vF) at full load |
| RthJC | 0.126 °C/W - max junction-to-case thermal resistance per arm (DC), critical for heatsink sizing and thermal interface material selection |
| iR max | 20 mA - reverse leakage current at VRRM and Tvj max, impacts standby losses and voltage balancing in series-connected modules |
| Qr | Not specified in provided data - recovered charge not listed; softness factor and reverse recovery behavior require separate characterization |
Pinout & Package
ND171N14KHPSA1 is a press-pack dual-diode module housed in a metal-ceramic package with isolated copper terminals. Mechanical mounting uses M1 screws (6 Nm ±15%) for case clamping and M2 screws (6 Nm ±10%) for electrical connections. Total weight is 310 g; creepage distance is 15 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode arm | Connects to AC phase input in B6 bridge; carries full phase current during conduction interval |
| Cathode Common (K) | Shared cathode node for both arms | Outputs rectified DC voltage; requires low-inductance, high-current busbar connection |
| Anode 2 (A2) | Input terminal for second diode arm | Connects to second AC phase; enables complementary half-wave conduction in full-bridge topology |
Key Features
| Feature | Design Value |
|---|---|
| AlN ceramic isolation | Enables 2.5 kV RMS insulation test voltage (1 min), supporting safe operation in grounded DC bus systems |
| Pressure-contact Si die | Eliminates wire bonds and solder layers, improving thermal cycle lifetime and reducing contact resistance drift over time |
| Low RthCH (0.03 °C/W) | Permits direct mounting to heatsinks without thermal pads, minimizing total thermal resistance path to ambient |
| 150°C Tvj max rating | Allows derated operation up to 150°C junction temperature, increasing power density in space-constrained enclosures |
Applications
| Industrial UPS Systems | Traction Motor Drives |
|---|---|
Use Scenario: Three-phase 600 VAC input rectification feeding IGBT inverter stage in 100–500 kVA uninterruptible power supplies. IC Role / Device Role / Timing Role: Dual-arm diode module operating in B6 six-pulse configuration to generate stable DC link voltage. Use Value: 171 A IFAVM and 0.126 °C/W RthJC enable compact heatsink design while maintaining <100°C case temperature under full load. | Use Scenario: Regenerative braking and motoring in rail traction converters using line-commutated or hybrid rectifier topologies. IC Role / Device Role / Timing Role: High-reliability rectifier arm handling bidirectional energy flow during dynamic braking events. Use Value: 6.6 kA IFSM rating and 218 kA²s I²t withstand support fault-clearing coordination with fast-acting DC circuit breakers. |
| Medium-Voltage Variable Frequency Drives | High-Power Welding Rectifiers |
Use Scenario: Input stage of 3.3 kV or 6.6 kV MV drives using cascaded H-bridge or diode-clamped multilevel topologies. IC Role / Device Role / Timing Role: Modular rectifier building block deployed in parallel strings to achieve system-level current ratings >1 kA. Use Value: Press-pack construction and 15 mm creepage distance meet IEC 61800-5-1 pollution degree 3 requirements for dusty industrial environments. | Use Scenario: Constant-current DC power supply for resistance spot welding with 5–10 kA output pulses. IC Role / Device Role / Timing Role: Primary rectification element delivering high peak current with minimal forward drop during weld cycle. Use Value: 1.26 V vF max at 500 A reduces conduction loss by ~15% vs. comparable 1200 V modules, lowering thermal stress during repetitive pulsing. |
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 |
|---|---|---|---|
| DD171N14K | Same die and rating, but single-diode configuration (not dual-arm); requires two units for B6 bridge | Larger footprint and higher interconnect inductance due to discrete mounting | Select when modular redundancy or independent arm control is required |
| SKD171/14 | 1400 V VRRM, 170 A IFAVM, but uses solder-bonded die and lower surge rating (6.0 kA IFSM) | Lower thermal cycling endurance and reduced short-circuit robustness | Select for cost-sensitive, non-safety-critical applications with moderate thermal cycling |
Compared with DD171N14K and SKD171/14, ND171N14KHPSA1 delivers superior thermal reliability via pressure-contact construction and higher surge margin, making it preferred for traction and mission-critical UPS where field failure risk must be minimized.
Availability
ND171N14KHPSA1 is available at Aetrix Electronics and suitable for industrial UPS systems, traction motor drives, medium-voltage variable frequency drives, and high-power welding rectifiers requiring stable component supply across multi-year production programs.
Supply support for ND171N14KHPSA1 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, traction, and renewable energy applications.
ND171N14KHPSA1 belongs to Semikron's Netz-Dioden-Modul (network diode module) product line, engineered for high-efficiency, long-life AC/DC conversion in harsh environments with elevated ambient temperatures and mechanical vibration.
FAQ
What is the recommended heatsink mounting torque for ND171N14KHPSA1?
The mechanical mounting torque for the M1 case clamping screws is 6 Nm ±15%. This ensures optimal thermal contact between the module baseplate and heatsink while avoiding ceramic substrate fracture. Torque must be applied in a cross-pattern sequence and verified with calibrated tools before operational use.
Does ND171N14KHPSA1 support series connection for higher voltage blocking?
Yes - ND171N14KHPSA1 is designed for series operation with matched static and dynamic voltage sharing. Its 1400 V VRRM and low leakage (20 mA max at Tvj max) allow two modules to safely block up to 2400 V DC in balanced configurations, provided external RC snubbers and gate-controlled crowbar circuits are implemented.
What is the maximum allowable case temperature during continuous operation?
The maximum case temperature is not independently specified; instead, the device is rated for 171 A IFAVM at TC = 100°C. Operation above 100°C requires derating per the TC = f(IFAVM) curve in the datasheet - at TC = 110°C, IFAVM drops to approximately 155 A, and at TC = 125°C, it falls to ~130 A.
Is ND171N14KHPSA1 qualified to AEC-Q101 or other automotive standards?
No - ND171N14KHPSA1 is not AEC-Q101 qualified. It is designed and tested per industrial and traction standards (IEC 60747, EN 50178), with vibration resistance of 50 m/s² at 50 Hz and storage temperature range of –40°C to +150°C, but lacks automotive-specific qualification testing such as temperature cycling or humidity bias life.
ND171N14KHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1400 V
- Current - Average Rectified (Io):
- 104A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 mA @ 1400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- BG-PB34-1
- Operating Temperature - Junction:
- -40°C ~ 135°C
ND171N14KHPSA1 FAQ
1.How can I place an order for ND171N14KHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ND171N14KHPSA1 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 ND171N14KHPSA1 reliable?
The price and inventory of ND171N14KHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ND171N14KHPSA1 is usually 5 days.
3.What payment methods are accepted for ND171N14KHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ND171N14KHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ND171N14KHPSA1?
ND171N14KHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ND171N14KHPSA1 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 ND171N14KHPSA1?
For technical support, including ND171N14KHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ND171N14KHPSA1 requirements.
6.How does Aetrix verify that ND171N14KHPSA1 is sourced from the original manufacturer or authorized distributors?
All ND171N14KHPSA1 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 ND171N14KHPSA1 meets industry standards.
7.What is the process for return or replacement of ND171N14KHPSA1?
All ND171N14KHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ND171N14KHPSA1, 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 ND171N14KHPSA1 part is unused and in its original packaging.
Return procedure for ND171N14KHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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