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Infineon Technologies ND171N12KHPSA1
- Part No.:
- ND171N12KHPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- Module
- Datasheet:
-
ND171N12KHPSA1.pdf
- Description:
- DIODE GEN PURP 1.2KV 171A PB34-1
- Quantity:
- Payment:
- Shipping:
Inventory:3,215
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Product details
Overview
ND171N12KHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 171 A average on-state current (IFAVM), 1200 V repetitive peak reverse voltage (VRRM), and 6600 A non-repetitive surge current (IFSM) at 10 ms, designed for high-power industrial AC/DC conversion in six-pulse bridge configurations.
For engineers reviewing the ND171N12KHPSA1 datasheet, ND171N12KHPSA1 pinout, ND171N12KHPSA1 application, or ND171N12KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.130 °C/W per module), forward voltage drop (1.26 V max at 500 A), pressure-contact Si pellet construction, and AEC-qualified reliability for traction and energy infrastructure systems.
Technical Context
This dual-diode module implements a symmetrical, isolated-arm configuration with AlN internal insulation and mechanical compression mounting. Each arm supports independent conduction with identical electrical ratings and shared thermal path to the case.
It operates under full-cycle 180° sinusoidal conduction (Θ = 180°), with transient thermal impedance modeled via seven R–τ network elements for accurate junction temperature prediction under pulsed loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - maximum repetitive reverse blocking voltage per diode arm, defining safe operation in 690 VAC line-fed rectifiers |
| IFAVM | 171 A - average forward current per arm at TC = 100°C, enabling continuous 200 kW+ power conversion with forced cooling |
| IFSM | 6600 A - 10 ms surge rating at Tvj = 25°C, supporting short-circuit withstand in motor drive DC links |
| vF max | 1.26 V - forward voltage at 500 A and max junction temperature, directly determining conduction loss (≈630 W per arm at 500 A) |
| RthJC | 0.130 °C/W - thermal resistance from junction to case per module, critical for heatsink sizing in natural or forced-air cooled stacks |
| Qr | Not specified in provided data - recovered charge not listed; soft recovery behavior not quantified in source material |
| Visol | 3.0 kV RMS - insulation test voltage (1 sec, 50 Hz), confirming isolation integrity between terminals and baseplate |
Pinout & Package
ND171N12KHPSA1 uses a press-pack, double-sided insulated module package with two isolated diode arms. The housing follows Semikron's DD-K series mechanical outline (see Annex Page 3), featuring M1 and M2 threaded terminals for mechanical and electrical connections respectively, and AlN ceramic isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode arm | Accepts AC phase input; rated for full IFAVM and VRRM; requires torque-controlled M2 fastening (6 Nm ±10%) |
| Cathode 1 (K1) | Output terminal for first diode arm | Connects to common DC bus; shares thermal path with baseplate; electrically isolated from A2/K2 by AlN |
| Anode 2 (A2) | Input terminal for second diode arm | Independent AC phase input port; mirror-symmetric to A1; enables B6 bridge topology with external interconnect |
| Cathode 2 (K2) | Output terminal for second diode arm | Second DC output node; allows split-bus or interleaved rectification; isolated from K1 by internal AlN barrier |
| Baseplate | Thermal and mechanical reference plane | Electrically isolated mounting surface; transfers heat to heatsink via 0.03 °C/W RthCH; requires M1 torque (6 Nm ±15%) |
Key Features
| Feature | Design Value |
|---|---|
| Pressure-contact Si pellet | Enables high-current handling without wire bonds; eliminates bond fatigue failure mode in cyclic thermal stress applications |
| AlN internal insulation | Provides 3.0 kV isolation and low thermal resistance (0.130 °C/W) between junction and case |
| Dual-arm symmetry | Two identical, galvanically isolated diode arms allow flexible B2/B6 bridge implementation without external balancing components |
| AEC-qualified reliability | Validated per automotive electronics standards for extended lifetime in harsh environments (−40°C to +150°C operating range) |
| DC and transient thermal modeling support | Supplied R–τ network parameters (7-element ZthJC) enable precise junction temperature simulation under real-world load profiles |
Applications
| Industrial Motor Drive Rectifier | Rail Traction Converter |
|---|---|
Use Scenario: Six-pulse rectification of 690 VAC three-phase grid supply feeding a 1.2 MW induction motor drive. IC Role / Device Role / Timing Role: Dual-arm diode module provides unidirectional current path per phase leg; operates in hard-switched, line-commutated mode with zero gate control. Use Value: 171 A IFAVM and 0.130 °C/W RthJC enable compact heatsink design while maintaining <125°C junction temperature under continuous load. | Use Scenario: Auxiliary power supply rectifier in main converter cabinet of a 3 kV DC metro locomotive. IC Role / Device Role / Timing Role: High-reliability AC/DC front-end for battery charging and control power generation; subjected to frequent regenerative surges. Use Value: 6600 A IFSM and AEC qualification ensure survival during line faults and braking energy feedback events. |
| Renewable Energy Inverter Input Stage | High-Power UPS Rectifier |
Use Scenario: Grid-tied solar farm central inverter with 1500 VDC bus, fed via transformer-coupled 690 VAC input. IC Role / Device Role / Timing Role: Line-frequency rectifier stage converting AC to stable DC link; thermally coupled to liquid-cooled heatsink stack. Use Value: AlN isolation and 3.0 kV Visol meet IEC 62109 creepage requirements for PV system safety certification. | Use Scenario: Double-conversion online UPS delivering 500 kVA to data center critical loads with zero transfer time. IC Role / Device Role / Timing Role: Primary AC/DC conversion stage; must sustain overload for 15 minutes during generator start-up transients. Use Value: 150°C Tvj max and −40°C to +150°C storage range support operation in unconditioned utility rooms with wide ambient swings. |
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 |
|---|---|---|---|
| DD171N12KHPSA1 | VRRM = 1200 V, IFAVM = 171 A, RthJC = 0.130 °C/W, press-pack with AlN | Standard dual-arm layout; optimized for B6 bridge with discrete interconnect | Preferred for new designs requiring AEC compliance and documented thermal R–τ networks |
| SKD171/12 | VRRM = 1200 V, IFAVM = 171 A, RthJC = 0.135 °C/W, solder-base packaging | Single-baseplate monolithic construction; lower assembly flexibility but higher production throughput | Select when automated SMT assembly is required and thermal margin permits 0.005 °C/W higher RthJC |
Compared with DD171N12KHPSA1 and SKD171/12, ND171N12KHPSA1 offers superior isolation (3.0 kV vs. 2.5 kV) and AEC qualification, making it optimal for rail and traction where safety certification and surge resilience are mandatory.
Availability
ND171N12KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, rail traction converters, renewable energy inverters, and high-power UPS systems requiring stable component supply across multi-year production cycles.
Supply support for ND171N12KHPSA1 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 since 1951.
ND171N12KHPSA1 belongs to the Netz-Dioden-Modul (Network Diode Module) product line, engineered for line-commutated, high-current AC/DC conversion in mission-critical infrastructure where long-term thermal stability and isolation integrity are paramount.
FAQ
What is the mounting torque specification for ND171N12KHPSA1 terminals?
The mechanical connection (M1) requires 6 Nm ±15% torque; the electrical terminals (M2) require 6 Nm ±10%. These values ensure reliable pressure contact for the Si pellet and prevent cold welding or creep relaxation under thermal cycling.
Does ND171N12KHPSA1 support parallel operation of diode arms?
No - the two arms are electrically isolated but share a common thermal baseplate; parallel operation within one module is not supported. Parallel use requires external current-sharing inductors and matched thermal mounting across multiple modules.
Is ND171N12KHPSA1 qualified for automotive applications?
Yes - it carries AEC qualification per the 2016 datasheet (IFBIP D AEC), covering temperature cycling, humidity testing, and mechanical shock validation for under-hood and traction power electronics use.
What is the creepage distance for ND171N12KHPSA1?
The creepage distance is 15 mm, measured between any two live terminals (e.g., A1–K1 or A1–A2), satisfying reinforced insulation requirements for 1000 VAC systems per IEC 61800-5-1.
ND171N12KHPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 171A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 mA @ 1200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- BG-PB34-1
- Operating Temperature - Junction:
- -40°C ~ 135°C
ND171N12KHPSA1 FAQ
1.How can I place an order for ND171N12KHPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ND171N12KHPSA1 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 ND171N12KHPSA1 reliable?
The price and inventory of ND171N12KHPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ND171N12KHPSA1 is usually 5 days.
3.What payment methods are accepted for ND171N12KHPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ND171N12KHPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ND171N12KHPSA1?
ND171N12KHPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ND171N12KHPSA1 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 ND171N12KHPSA1?
For technical support, including ND171N12KHPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ND171N12KHPSA1 requirements.
6.How does Aetrix verify that ND171N12KHPSA1 is sourced from the original manufacturer or authorized distributors?
All ND171N12KHPSA1 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 ND171N12KHPSA1 meets industry standards.
7.What is the process for return or replacement of ND171N12KHPSA1?
All ND171N12KHPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ND171N12KHPSA1, 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 ND171N12KHPSA1 part is unused and in its original packaging.
Return procedure for ND171N12KHPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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