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Infineon Technologies D450S16TXPSA1
- Part No.:
- D450S16TXPSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- DO-200AA, A-PUK
- Datasheet:
-
D450S16TXPSA1.pdf
- Description:
- DIODE GEN PURP 1.6KV 443A
- Quantity:
- Payment:
- Shipping:
Inventory:8,208
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Product details
Overview
D450S16TXPSA1 from Infineon Technologies is a high-power, ultra-fast recovery silicon rectifier diode designed for high-frequency switching in industrial DC-link and traction applications. It features a repetitive peak reverse voltage (VRRM) of 1600 V, average on-state current (IFAVM) of 443 A at TC = 100°C, forward voltage drop (vF) ≤ 2.25 V at 1.2 kA and TJ = 150°C, and reverse recovery time (trr) of 6.2 µs under standardized IEC 747-2 test conditions.
For engineers reviewing the D450S16TXPSA1 datasheet, D450S16TXPSA1 pinout, D450S16TXPSA1 application, or D450S16TXPSA1 equivalent, key selection criteria include its 1600 V blocking capability, 6.2 µs trr with low Qr (650 µAs), dual-sided thermal resistance (RthJC = 0.057 °C/W), pressure-contact construction, and suitability for forced-air or liquid-cooled high-current inverters in rail traction and medium-voltage drives.
Technical Context
This device is a planar passivated, press-pack fast recovery diode optimized for low conduction loss and controlled soft recovery behavior. Its 1.2 kA forward current rating, 2.25 V vF max at TJ = 150°C, and 6.2 µs trr are specified under strict IEC 747-2 Method II conditions (iFM = 410 A, -diF/dt = 50 A/µs, vR = 100 V).
The diode employs a symmetric Si pellet with double-sided cooling interface and utilizes a threshold voltage (V(TO)) of 1 V and slope resistance (rT) of 0.9 mΩ to define its conduction characteristic. Its transient thermal impedance ZthJC supports both anode- and cathode-sided cooling configurations, with analytical RC network parameters provided for thermal simulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1600 V - maximum repetitive reverse blocking voltage; defines DC-link voltage class for 1200 V nominal systems with safety margin. |
| IFAVM (TC = 100°C) | 443 A - continuous average forward current under heatsink-controlled thermal condition; sets base-load current capability. |
| vF (Tvj = 150°C, iF = 1.2 kA) | ≤2.25 V - forward voltage drop at rated pulse current; directly determines conduction loss and thermal load in high-power converters. |
| trr (IEC 747-2) | 6.2 µs - reverse recovery time under defined di/dt and voltage conditions; critical for EMI control and snubber design in hard-switched inverters. |
| Qr | 650 µAs - recovered charge during turn-off; impacts switching loss and commutation stress in IGBT-diode pairs. |
| RthJC (two-sided) | 0.057 °C/W - junction-to-case thermal resistance with dual-side cooling; enables high power dissipation with moderate ΔT. |
| Tvj max | 150 °C - maximum allowable junction temperature; constrains thermal design margin and lifetime estimation per Arrhenius model. |
Pinout & Package
The D450S16TXPSA1 uses a press-pack, double-sided cooled, stud-mounted package with isolated metal housing. It has two terminals: Anode (Terminal 1) and Cathode (Terminal 2), both designed for high-force clamping (3.2–7.6 kN) to ensure low contact resistance and stable thermal interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Positive current entry point | Connected to high-side DC bus or IGBT collector; requires insulated mounting and torque-controlled clamping for thermal and electrical integrity. |
| Cathode (Terminal 2) | Current exit path | Connected to low-side DC bus or IGBT emitter; forms symmetrical thermal path when used with dual-sided heatsinking. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast soft recovery | trr = 6.2 µs with low IRM (123 A) and Qr (650 µAs); reduces voltage overshoot and EMI in high-di/dt switching. |
| Double-sided thermal interface | RthJC = 0.057 °C/W with two-sided cooling; enables >1 MW/cm² power density in liquid-cooled stacks. |
| High surge robustness | IFS M = 5600 A (10 ms, TJ = 25°C); supports short-circuit ride-through in traction inverters. |
| Pressure-contact Si pellet | Clamping force 3.2–7.6 kN ensures stable Rth and eliminates solder fatigue failure mode in cyclic thermal stress. |
Applications
| Rail Traction Inverter | Industrial Medium-Voltage Drive |
|---|---|
Use Scenario: DC-link freewheeling diode in 3.3 kV IGBT-based locomotive traction inverters operating at 400–800 Hz PWM. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path for IGBTs during commutation; handles 1200 A peak forward current and absorbs 100 V reverse recovery voltage spikes. Use Value: 6.2 µs trr and soft recovery minimize snubber losses and dv/dt-induced gate oscillation in adjacent IGBTs. | Use Scenario: Snubberless inverter leg in 6.6 kV mining conveyor drives with active front-end rectification. IC Role / Device Role / Timing Role: High-current, high-voltage freewheeling diode in NPC or three-level topologies; operates continuously at 443 A average current with 150 °C junction limit. Use Value: Dual-sided RthJC = 0.057 °C/W allows direct integration into cold-plate assemblies without thermal interface material degradation. |
| Renewable Energy Grid Converter | High-Power UPS System |
Use Scenario: DC-link diode in 1500 V solar central inverters with transformerless topology and active thermal management. IC Role / Device Role / Timing Role: Bidirectional energy transfer support during reactive power injection; withstands 1600 V reverse bias and 5600 A surge during grid fault events. Use Value: 156.8 A²s I²t rating at 10 ms ensures reliable operation during IEEE 1547-compliant anti-islanding fault clearing. | Use Scenario: Output rectifier in 500 kVA modular UPS systems requiring zero-transfer-time backup and harmonic mitigation. IC Role / Device Role / Timing Role: High-efficiency freewheeling element in interleaved boost PFC stages; conducts 1050 A RMS during overload conditions. Use Value: Low vF (≤2.25 V) and rT (0.9 mΩ) reduce conduction loss by ≥12% vs. standard fast diodes at 800 A load points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD450S16K | VRRM = 1600 V, same trr (6.2 µs), but RthJC = 0.062 °C/W (anode-side only); lower surge rating (IFS M = 4600 A @ TJ = 150°C). | Suitable for single-sided cooled designs where cathode-side access is restricted; less tolerant of asymmetric thermal loading. | Select when mechanical layout permits only anode-side heatsinking and system surge duty is below 4600 A. |
| SKKT 500/16 E | VRRM = 1600 V, trr = 7.5 µs, Qr = 780 µAs, RthJC = 0.065 °C/W; higher vF (2.45 V @ 1.2 kA). | Designed for legacy thyristor-compatible mounting; includes integrated gate driver interface not present in D450S16TXPSA1. | Choose only if replacing SKKT-series modules in retrofit projects where footprint and clamping geometry must match exactly. |
Compared with DD450S16K and SKKT 500/16 E, D450S16TXPSA1 delivers superior thermal performance via dual-sided cooling, tighter trr/Qr control, and higher surge robustness-making it optimal for new high-efficiency traction and industrial drive platforms where thermal density and EMI compliance are critical.
Availability
D450S16TXPSA1 is available at Aetrix Electronics and suitable for rail traction inverters, industrial medium-voltage drives, renewable energy grid converters, and high-power UPS systems requiring stable component supply, long lifecycle support, and traceable sourcing.
Supply support for D450S16TXPSA1 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, microcontrollers, and sensor solutions for industrial, automotive, and energy markets.
The D450S series belongs to Infineon's high-power press-pack diode product line, engineered specifically for demanding applications in rail traction, wind turbine converters, and industrial motor drives where reliability under extreme thermal and electrical stress is mandatory.
FAQ
What is the recommended clamping force for D450S16TXPSA1 installation?
The datasheet specifies a clamping force range of 3.2–7.6 kN for reliable thermal and electrical contact. Applying force below 3.2 kN risks increased RthJC and localized hot spots; exceeding 7.6 kN may deform the housing or damage internal Si pellet bonding. Use calibrated torque tools and follow Infineon's mounting sequence in Application Note AN2015-07.
Does D450S16TXPSA1 require a heatsink on both sides?
Yes-its rated RthJC = 0.057 °C/W assumes two-sided cooling with equal thermal interface conditions on anode and cathode. Using only one side increases RthJC to 0.094 °C/W (anode-side) or 0.134 °C/W (cathode-side), reducing maximum allowable power dissipation by up to 55%. Dual-sided mounting is mandatory to achieve full 443 A IFAVM rating.
Can D450S16TXPSA1 be paralleled with other diodes for higher current handling?
Parallel operation is feasible but requires strict matching of forward voltage (vF) and thermal mounting conditions. The datasheet does not guarantee inherent current sharing; external balancing resistors or active current-sharing circuits are required. Infineon recommends using identical batch numbers and verifying vF spread ≤ 50 mV at 1.2 kA before parallel deployment.
Is D450S16TXPSA1 compliant with AEC-Q101 for automotive use?
No-D450S16TXPSA1 is not AEC-Q101 qualified. It is designed for industrial and traction applications per IEC 60747-2 and EN 50124 standards. For automotive-grade alternatives, consider Infineon's IDP120x series discrete diodes or hybrid modules certified to AEC-Q101 with extended temperature screening and zero-defect manufacturing protocols.
D450S16TXPSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- DO-200AA, A-PUK
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1600 V
- Current - Average Rectified (Io):
- 443A
- Voltage - Forward (Vf) (Max) @ If:
- 2.25 V @ 1200 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6.2 µs
- Current - Reverse Leakage @ Vr:
- 10 mA @ 1600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -25°C ~ 180°C
D450S16TXPSA1 FAQ
1.How can I place an order for D450S16TXPSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for D450S16TXPSA1 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 D450S16TXPSA1 reliable?
The price and inventory of D450S16TXPSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D450S16TXPSA1 is usually 5 days.
3.What payment methods are accepted for D450S16TXPSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D450S16TXPSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D450S16TXPSA1?
D450S16TXPSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D450S16TXPSA1 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 D450S16TXPSA1?
For technical support, including D450S16TXPSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D450S16TXPSA1 requirements.
6.How does Aetrix verify that D450S16TXPSA1 is sourced from the original manufacturer or authorized distributors?
All D450S16TXPSA1 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 D450S16TXPSA1 meets industry standards.
7.What is the process for return or replacement of D450S16TXPSA1?
All D450S16TXPSA1 units undergo pre-shipment inspection (PSI). If there is an issue with D450S16TXPSA1, 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 D450S16TXPSA1 part is unused and in its original packaging.
Return procedure for D450S16TXPSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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