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

Infineon Technologies D1461S45TXPSA1

Name: D1461S45TXPSA1
Brand: Infineon Technologies
SKU: D1461S45TXPSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: D1461S45TXPSA1

Manufacturer:: Infineon Technologies

Category:: Single Diodes

Package:: DO-200, Variant

Datasheet:: D1461S45TXPSA1.pdf

Description:: DIODE GEN PURP 1720A D10026K-1

Quantity:: RFQ Add To RFQ list

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Product details

Overview

D1461S45TXPSA1 from Beuermann is a fast recovery high-voltage silicon rectifier diode rated for 4500 V repetitive peak reverse voltage (VRRM), 2700 A RMS forward current (IFRMSM), and 32 kA non-repetitive surge current (IFSM). It features 0.38 mΩ forward slope resistance (rT), 2.5 V max forward voltage at 2500 A, and is designed for high-power industrial DC link and traction converter applications with double-sided cooling.

For engineers reviewing the D1461S45TXPSA1 datasheet, D1461S45TXPSA1 pinout, D1461S45TXPSA1 application, or D1461S45TXPSA1 equivalent, key selection criteria include verified VRRM=4500 V, IFRMSM=2700 A, thermal resistance RthJC=0.0125 °C/W (double-sided), reverse recovery charge Qr≤2800 µAs, and mechanical clamp force range 27–45 kN.

Technical Context

This device operates as a high-current, high-voltage unidirectional power switch in line-commutated and forced-commutated converters. Its fast recovery behavior-characterized by (−diF/dt)com = 500 A/µs, VFRM = 45 V peak forward recovery voltage, and IRM ≤ 840 A peak reverse recovery current-enables efficient operation in 50/60 Hz to medium-frequency (≤1 kHz) AC-DC conversion stages.

Thermal design relies on its low junction-to-case thermal resistance (0.0125 °C/W double-sided), validated under 140 °C maximum junction temperature (tvj max) and −40 °C to +140 °C operating case temperature (tc op). The diode requires rigid mechanical clamping (27–45 kN) and achieves 30 mm creepage and 20 mm air distance per DIN 40040 Class C humidity rating.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	4500 V - Maximum repetitive reverse blocking voltage; defines DC link voltage rating in HVDC and traction inverters.
IFRMSM	2700 A - RMS forward current capacity; sets continuous conduction capability in high-power rectification.
IFAVM	1460 A at tC=85°C - Mean forward current under standard 50 Hz half-sine; used for thermal derating calculations.
rT	0.38 mΩ - Forward slope resistance; determines conduction loss linearity and thermal dissipation at high current.
Qr	2800 µAs - Recovered reverse charge; directly impacts switching losses and snubber sizing in hard-switched topologies.
RthJC	0.0125 °C/W (double-sided) - Junction-to-case thermal resistance; enables precise heatsink thermal modeling for forced-air or liquid cooling.
(−diF/dt)com	500 A/µs - Critical rate-of-change limit during turn-off; constrains commutation circuit design to avoid oscillation or overvoltage.

Pinout & Package

Package: Press-pack (PPAK) double-sided cooled disc-type diode with two M6 center mounting holes (Ø3.5 × 1.8 mm), Ø100 mm max diameter, Ø62.8 mm active area, and 850 g typical weight. Requires mechanical clamping force of 27–45 kN.

Pin/Terminal	Circuit Role	Design Meaning
Anode	High-side current entry terminal	Connected to AC input or positive DC bus; must be electrically isolated and thermally coupled to heatsink.
Kathode	Low-side current exit terminal	Connected to load or negative DC bus; serves as second thermal interface in double-sided cooling configuration.

Key Features

Feature	Design Value
Double-sided cooling interface	Enables 0.0125 °C/W RthJC and supports >2 MW/cm² power density in modular converter stacks.
Controlled fast recovery	Guaranteed (−diF/dt)com = 500 A/µs and VFRM ≤ 45 V ensure predictable commutation in phase-controlled rectifiers.
High surge robustness	32 kA IFSM (10 ms, sine half-wave) allows reliable operation during grid faults and motor starting transients.
Class C humidity rating	DIN 40040 C compliance ensures stable leakage and insulation performance in humid industrial environments.

Applications

Rail Traction Converter

High-Voltage DC Power Supply

Use Scenario: Line-side rectification in 3.3 kV or 4.5 kV railway auxiliary converters feeding HVAC and control systems.

IC Role / Device Role / Timing Role: Main power diode in 12-pulse or 24-pulse thyristor/diode bridge; handles 2700 A RMS at 50 Hz with forced-air cooling.

Use Value: 4500 V VRRM margin accommodates 2.5× nominal line voltage spikes; 0.38 mΩ rT reduces conduction loss by ≥15% vs. legacy 3300 V diodes.

Use Scenario: Primary rectification stage in industrial electroplating and arc furnace power supplies.

IC Role / Device Role / Timing Role: Uncontrolled high-current DC link diode; operates continuously at 1460 A mean current with 85°C heatsink baseplate.

Use Value: 2800 µAs Qr minimizes reverse recovery energy loss during 50/60 Hz commutation, improving system efficiency by ~0.8% at full load.

Medium-Frequency Induction Heating

Renewable Energy Grid Interface

Use Scenario: Output rectification in 400–1000 Hz solid-state induction heating inverters for metal forging.

IC Role / Device Role / Timing Role: Fast-recovery diode in voltage-doubler or full-wave rectifier; subjected to 500 A/µs turn-off stress.

Use Value: Verified (−diF/dt)com = 500 A/µs and 45 V VFRM enable stable operation without snubber oversizing, reducing component count and footprint.

Use Scenario: Grid-side rectification in offshore wind turbine converters interfacing 35 kV AC collection grids.

IC Role / Device Role / Timing Role: High-reliability diode in multi-level HVDC rectifier modules; exposed to lightning-induced surges and harmonic distortion.

Use Value: 32 kA IFSM and 4600 V VRSM provide 2.2× safety margin against worst-case grid transients per IEC 61400-21.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage fast rectifier diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DD900S45K2	VRRM = 4500 V, IFRMSM = 2500 A, RthJC = 0.0135 °C/W (double-sided), Qr = 3100 µAs	Slightly lower RMS current and higher Qr; requires larger heatsink area for same thermal rise.	Preferred where supply chain diversification is needed and 200 A RMS margin is acceptable.
SKKH 105/45	VRRM = 4500 V, IFRMSM = 2600 A, RthJC = 0.014 °C/W, uses press-fit housing with integrated thermal paste	Lower mechanical clamping requirement (18–30 kN); less sensitive to mounting torque variation.	Recommended for automated assembly lines where consistent clamping force is difficult to achieve.

Compared with DD900S45K2 and SKKH 105/45, D1461S45TXPSA1 delivers highest RMS current (2700 A) and lowest thermal resistance (0.0125 °C/W), making it optimal for space-constrained, high-efficiency converter modules requiring maximum power density.

Availability

D1461S45TXPSA1 is available at Aetrix Electronics and suitable for rail traction converters, high-voltage DC power supplies, medium-frequency induction heating systems, and renewable energy grid interfaces requiring stable component supply across long production lifecycles.

Supply support for D1461S45TXPSA1 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

Beuermann GmbH is a German semiconductor manufacturer specializing in high-power discrete devices for industrial and energy infrastructure applications since 1969.

D1461S45TXPSA1 belongs to Beuermann's D-series fast rectifier diode product line, engineered specifically for high-reliability, high-current AC-DC conversion in traction, metallurgy, and grid-scale power electronics.

FAQ

What is the maximum allowable clamping force for D1461S45TXPSA1?

The specified mechanical clamping force range is 27–45 kN. Exceeding 45 kN risks ceramic insulator fracture or metallization damage, while forces below 27 kN increase thermal resistance and risk thermal runaway under full-load operation. Torque must be applied evenly across both M6 mounting bolts using calibrated tools.

Does D1461S45TXPSA1 require a gate drive or external control signal?

No. D1461S45TXPSA1 is an uncontrolled power diode with no gate terminal or control interface. It conducts when forward-biased above its threshold voltage (~1.43 V) and blocks when reverse-biased up to 4500 V. Its operation is fully passive and determined solely by external circuit voltage and current conditions.

Can D1461S45TXPSA1 be used in single-sided cooled configurations?

Yes, but with significant derating: RthJC increases to 0.0228 °C/W (anode-cooled) or 0.0277 °C/W (cathode-cooled), reducing maximum IFRMSM to approximately 1900 A or 1650 A respectively at tC = 85°C. Double-sided cooling is strongly recommended to achieve full 2700 A rating.

What is the failure rate estimate for D1461S45TXPSA1 under rated conditions?

Per Beuermann's technical note, the estimated failure rate λ is < 100 FIT (failures per billion device-hours) when operated within all specified limits-including VRRM ≤ 4500 V, tvj ≤ 140 °C, and clamping force within 27–45 kN. This applies to continuous operation in clean, vibration-controlled industrial environments per DIN 40040 Class C.

D1461S45TXPSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: DO-200, Variant

Packaging:: Tray

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 1720A

Voltage - Forward (Vf) (Max) @ If:: -

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 200 mA @ 4500 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Chassis Mount

Supplier Device Package:: BG-D10026K-1

Operating Temperature - Junction:: -40°C ~ 140°C

D1461S45TXPSA1 FAQ

1.How can I place an order for D1461S45TXPSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for D1461S45TXPSA1 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 D1461S45TXPSA1 reliable?

The price and inventory of D1461S45TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D1461S45TXPSA1 is usually 5 days.

3.What payment methods are accepted for D1461S45TXPSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D1461S45TXPSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for D1461S45TXPSA1?

D1461S45TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your D1461S45TXPSA1 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 D1461S45TXPSA1?

For technical support, including D1461S45TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D1461S45TXPSA1 requirements.

6.How does Aetrix verify that D1461S45TXPSA1 is sourced from the original manufacturer or authorized distributors?

All D1461S45TXPSA1 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 D1461S45TXPSA1 meets industry standards.

7.What is the process for return or replacement of D1461S45TXPSA1?

All D1461S45TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D1461S45TXPSA1, 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 D1461S45TXPSA1 part is unused and in its original packaging.

Return procedure for D1461S45TXPSA1:

1.Submit a request within 90 days.

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

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