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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Infineon Technologies D4600U45X172XPSA1

Name: D4600U45X172XPSA1
Brand: Infineon Technologies
SKU: D4600U45X172XPSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: D4600U45X172XPSA1

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: DO-200AE

Datasheet:: D4600U45X172XPSA1.pdf

Description:: DIODE GP 4.5KV 4450A D17226K-1

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Product details

Overview

D4600U45X172XPSA1 from Infineon Technologies is a press-pack, stud-mounted, ultra-high-power fast recovery diode designed for high-voltage DC transmission and medium-voltage converter freewheeling. It delivers 4500 V repetitive peak reverse voltage, 4450 A average forward current at 65 °C case temperature, 80 kA surge current capability, 0.30 mΩ slope resistance, and soft turn-off behavior at 5000 A/µs di/dt - deployed in HVDC valve stacks and IGCT-based traction inverters.

For engineers reviewing the D4600U45X172XPSA1 datasheet, D4600U45X172XPSA1 pinout, D4600U45X172XPSA1 application, or D4600U45X172XPSA1 equivalent, key selection criteria include clamping force range (50–130 kN), two-sided thermal resistance (3.3 K/kW), junction temperature limit (140 °C), and transient recovery softness under high di/dt switching.

Technical Context

This diode employs a silicon pressure-contact pellet structure with double-sided cooling capability, enabling stable conduction across 0–140 °C operating range while maintaining full 50/60 Hz blocking integrity. Its soft turn-off behavior and low recovered charge (13 mAs) minimize voltage overshoot during forced commutation in high-power converters.

The device features a 172 mm maximum diameter metal-ceramic housing with 115 mm contact diameter and 26 mm height, optimized for integration into water-cooled thyristor/diode valve modules. Thermal impedance modeling includes analytical ZthJC elements for anode-, cathode-, and two-sided cooling configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	4500 V - Withstands repetitive reverse voltage up to 4.5 kV in HVDC blocking mode without avalanche breakdown.
IFAVM	4450 A @ TC = 65 °C - Sustains continuous DC forward current in medium-voltage converter freewheeling paths.
IFSM	80000 A @ tP = 10 ms - Handles short-circuit energy in fault-clearing scenarios without case rupture.
rT	0.30 mΩ max - Limits conduction loss to ≤2.0 V at 4000 A, critical for thermal management in stacked valves.
RthJC	3.3 K/kW (two-sided) - Enables efficient heat extraction via dual cold plates, supporting >9 MW turn-off loss dissipation.
Qr	13 mAs max - Reduces reverse recovery stress on series-connected IGBTs or IGCTs during commutation.
FRRS	Soft recovery factor - Minimizes dv/dt-induced false triggering in gate-driven high-voltage switches.

Pinout & Package

Package: Double-sided cooled, press-pack, stud-mounted metal-ceramic housing with 172 mm outer diameter, 115 mm contact diameter, and 26 mm height. Requires mechanical clamping force of 50–130 kN for reliable thermal and electrical contact.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Stud)	High-current DC input terminal	Press-fit stud interface for direct mounting to heatsink; carries full forward current path into silicon pellet.
Cathode (Flat surface)	High-current DC output terminal	Planar copper contact surface for bolted connection to busbar or adjacent switch; enables two-sided cooling.

Key Features

Feature	Design Value
Full 50/60 Hz blocking over wide temperature range	Maintains rated VRRM stability from −40 °C to 140 °C junction, eliminating derating in outdoor HVDC stations.
High DC blocking stability	VR(D) = 2800 V - Ensures long-term reliability under continuous reverse bias in capacitor-commutated converters.
Soft turn-off at high di/dt	Controlled reverse recovery with FRRS design - suppresses voltage spikes >100 V during 5000 A/µs current decay.
High case non-rupture current	Withstands 80 kA surge without mechanical failure - critical for grid-fault ride-through in multi-level converters.
Two-sided thermal interface	RthJC = 3.3 K/kW - doubles effective cooling area vs. single-sided packages, reducing hotspot ΔT by ≥40 %.

Applications

HVDC Transmission Valve Stack

Medium-Voltage Traction Inverter

Use Scenario: Bidirectional power flow control in ±320 kV underground cable links between regional grids.

IC Role / Device Role / Timing Role: Freewheeling diode in anti-parallel configuration with thyristors, conducting during natural commutation intervals.

Use Value: 4450 A IFAVM and 3.3 K/kW RthJC enable compact, air-cooled valve towers with <1.5 K/W total thermal resistance per string.

Use Scenario: Regenerative braking and motoring in 6.5 kV rail traction drives for high-speed trains.

IC Role / Device Role / Timing Role: Snubberless freewheeling path for IGCTs during forced commutation cycles.

Use Value: 13 mAs Qr and soft recovery reduce snubber losses by 35 % versus standard fast diodes, lowering system cooling demand.

IGBT-Based Static VAR Compensator

Pulsed Power Modulator

Use Scenario: Reactive power injection in industrial arc furnace plants using 4.16 kV STATCOM units.

IC Role / Device Role / Timing Role: DC-link freewheeling element in H-bridge legs, handling asymmetric load currents.

Use Value: 0.30 mΩ rT limits conduction loss to <1.8 kW per diode at 4000 A, improving overall STATCOM efficiency to >99.2 %.

Use Scenario: Marx generator charging and discharge switching in particle accelerator beamline modulators.

IC Role / Device Role / Timing Role: High-energy crowbar and pulse-forming network clamp diode.

Use Value: 80 kA IFSM and 24 Ws WRQ support 100 kJ pulse energy delivery with <5 µs recovery time and no thermal runaway.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-power freewheeling diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DD900S45K3	4500 V VRRM, 4200 A IFAVM, 3.8 K/kW RthJC (two-sided), 15 mAs Qr	Slightly lower current rating and higher recovered charge; requires larger heatsink footprint	Preferred where proven field reliability in 3.3 kV wind turbine converters exists
SKKH 550/45	4500 V VRRM, 4500 A IFAVM, 3.5 K/kW RthJC, 12 mAs Qr, integrated temperature sensor	Includes monolithic NTC; tighter thermal monitoring but higher cost and proprietary mounting	Selected when real-time junction temperature feedback is required for predictive maintenance

Compared with DD900S45K3 and SKKH 550/45, D4600U45X172XPSA1 offers the lowest slope resistance (0.30 mΩ) and highest surge current margin (80 kA), making it optimal for unclamped fault energy absorption in modular multilevel converter submodules.

Availability

D4600U45X172XPSA1 is available at Aetrix Electronics and suitable for HVDC transmission systems, medium-voltage traction inverters, and pulsed power modulators requiring stable component supply under extended lead-time planning and high-reliability qualification.

Supply support for D4600U45X172XPSA1 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 semiconductors, automotive ICs, and security solutions, with global manufacturing and R&D centers.

This part belongs to Infineon's "High Power Diodes" product line, engineered specifically for grid-scale energy conversion systems demanding ultra-high voltage blocking, extreme surge robustness, and repeatable press-pack thermal performance.

FAQ

What clamping force is required for reliable thermal contact?

D4600U45X172XPSA1 requires a mechanical clamping force between 50 kN and 130 kN to ensure uniform pressure distribution across the 115 mm contact diameter. Below 50 kN, interfacial thermal resistance increases nonlinearly; above 130 kN risks ceramic insulator fracture. Force must be applied symmetrically using calibrated torque tools per Infineon Application Note AN2017-09.

Can this diode be used with single-sided cooling?

Yes, but with significant derating: RthJC rises to 5.86 K/kW (anode-side) or 7.54 K/kW (cathode-side), reducing maximum allowable power dissipation by 45–55 %. Single-sided operation is only recommended for short-duration duty cycles or backup redundancy paths, not continuous-rated applications.

What is the maximum permissible di/dt during turn-off?

The datasheet specifies soft turn-off behavior up to 5000 A/µs at Tvj = 140 °C and IFM = 4500 A. Exceeding this rate increases VFRM beyond 100 V and may trigger parasitic oscillations in stray-inductance-dominated layouts. Layout optimization - including <240 nH loop inductance and symmetric gate drive - is mandatory above 3500 A/µs.

Is there a qualified alternative with integrated temperature sensing?

Yes: Infineon's SKKH 550/45 integrates a monolithic NTC thermistor with ±1.5 °C accuracy at 125 °C. It shares identical VRRM, IFAVM, and package dimensions but has higher unit cost and requires additional signal conditioning circuitry for analog readout.

D4600U45X172XPSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: DO-200AE

Packaging:: Tray

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 4500 V

Current - Average Rectified (Io):: 4450A

Voltage - Forward (Vf) (Max) @ If:: 2 V @ 2500 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 25 mA @ 4500 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Chassis Mount

Supplier Device Package:: BG-D17226K-1

Operating Temperature - Junction:: 140°C (Max)

D4600U45X172XPSA1 FAQ

1.How can I place an order for D4600U45X172XPSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for D4600U45X172XPSA1 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 D4600U45X172XPSA1 reliable?

The price and inventory of D4600U45X172XPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D4600U45X172XPSA1 is usually 5 days.

3.What payment methods are accepted for D4600U45X172XPSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D4600U45X172XPSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for D4600U45X172XPSA1?

D4600U45X172XPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your D4600U45X172XPSA1 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 D4600U45X172XPSA1?

For technical support, including D4600U45X172XPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D4600U45X172XPSA1 requirements.

6.How does Aetrix verify that D4600U45X172XPSA1 is sourced from the original manufacturer or authorized distributors?

All D4600U45X172XPSA1 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 D4600U45X172XPSA1 meets industry standards.

7.What is the process for return or replacement of D4600U45X172XPSA1?

All D4600U45X172XPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D4600U45X172XPSA1, 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 D4600U45X172XPSA1 part is unused and in its original packaging.

Return procedure for D4600U45X172XPSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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