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Infineon Technologies DDB6U145N16LHOSA1
- Part No.:
- DDB6U145N16LHOSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Diode Arrays
- Package:
- Module
- Datasheet:
-
DDB6U145N16LHOSA1.pdf
- Description:
- DIODE MODULE GP 1600V MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:7,553
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Product details
Overview
DDB6U145N16LHOSA1 from Infineon Technologies is a 1600 V repetitive peak reverse voltage, 145 A output current (at TC = 100°C), dual common-cathode silicon rectifier diode module in ISOPACK housing with Al₂O₃ internal insulation and soldered glass-passivated chips. It serves as a high-power AC/DC front-end rectifier in industrial motor drives and UPS systems requiring robust surge handling and low forward slope resistance.
For engineers reviewing the DDB6U145N16LHOSA1 datasheet, DDB6U145N16LHOSA1 pinout, DDB6U145N16LHOSA1 application, or DDB6U145N16LHOSA1 equivalent, key selection criteria include its 120° rectified thermal rating, 0.148 °C/W junction-to-case thermal resistance, 1.43 V max forward voltage at 150 A, and compatibility with KM11/KM33 heatsinks under forced-air cooling.
Technical Context
This dual-diode module uses two parallel-connected, glass-passivated silicon chips per arm in a common-cathode configuration, enabling full-wave bridge input stages without external interconnects. Its Al₂O₃ ceramic baseplate provides 3.0 kV RMS insulation and supports direct mounting to heatsinks via M1 screws (6 Nm torque).
The device operates across -40°C to +150°C junction temperature range and delivers 173 A output current at TC = 84°C with 90 L/min airflow on KM33 heatsink. Transient thermal impedance ZthJC is characterized for 120° rectified conduction and DC conditions using analytical RC network modeling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1600 V - maximum repetitive reverse blocking voltage per diode arm |
| IFRMSM | 100 A - RMS forward current rating per chip, defining continuous conduction capability |
| IFSM | 1200 A - non-repetitive surge current (10 ms) at 25°C, critical for short-circuit withstand |
| vF max | 1.43 V - forward voltage at 150 A and Tvj = 150°C, directly impacts conduction loss |
| RthJC | 0.148 °C/W - steady-state thermal resistance junction-to-case, determines heatsink sizing |
| VISOL | 3.0 kV RMS - isolation test voltage (1 min), ensures safety in grounded-system rectifiers |
| Tvj max | 150 °C - maximum allowable junction temperature, sets thermal derating limits |
Pinout & Package
Package: ISOPACK - insulated metal-base module with integrated Al₂O₃ ceramic substrate, dual common-cathode topology, M1 mounting screws (6 Nm), and M2 terminal screws (4 Nm). Dimensions and mechanical layout per Infineon Appendix Page 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode arm; connects to AC line phase 1 in full-wave rectifier |
| A2 | Anode 2 | Input terminal for second diode arm; connects to AC line phase 2 in full-wave rectifier |
| K | Common Cathode | DC output (+) node; carries full load current from both arms; requires low-inductance busbar connection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated Si chips | Enables stable reverse leakage (<5 mA at VRRM) and long-term reliability under thermal cycling |
| Al₂O₃ internal insulation | Provides reinforced isolation (3.0 kV RMS) and low thermal resistance path to heatsink |
| Low rT = 3.1 mΩ | Minimizes forward conduction losses and improves efficiency in high-current 3-phase rectifiers |
| 0.033 °C/W RthCK | Ensures efficient heat transfer from case to heatsink, reducing thermal interface dependency |
| Rated for 153 A at 35°C ambient (KM14, 45 L/min) | Supports compact system designs in space-constrained industrial enclosures with active cooling |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Three-phase AC input rectification feeding IGBT inverter stage in 75–150 kW variable-frequency drives. IC Role / Device Role / Timing Role: Dual common-cathode rectifier module providing DC bus generation with coordinated thermal management. Use Value: 173 A output at TC = 84°C enables single-module solution for mid-power drives, eliminating paralleling complexity. | Use Scenario: Line-interactive or double-conversion UPS rectifier stage handling utility-to-DC conversion and battery charging. IC Role / Device Role / Timing Role: High-surge-capable rectifier handling both normal operation and generator-start transients. Use Value: 1200 A IFSM rating supports ride-through during upstream short circuits without fuse coordination issues. |
| Welding Power Supplies | Renewable Energy Inverters |
Use Scenario: Primary rectification in IGBT-based inverter welders with duty-cycle modulation up to 60%. IC Role / Device Role / Timing Role: High-RMS-current diode module delivering pulsed DC bus under intermittent high-load conditions. Use Value: 100 A IFRMSM per chip sustains 145 A average output with minimal thermal overshoot during arc ignition bursts. | Use Scenario: Grid-tied solar inverter front-end rectification for auxiliary power supply and DC-link pre-charge. IC Role / Device Role / Timing Role: Isolated, high-voltage rectifier supporting SELV-compliant control circuitry and safe startup sequencing. Use Value: 3.0 kV isolation rating meets IEC 62109 requirements for photovoltaic system auxiliary supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-power rectifier module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DD600S16K4 | 1600 V VRRM, 600 A IF(AV), larger ISOTOP-2 package, higher thermal mass | Designed for higher continuous current; requires larger heatsink footprint and higher mounting torque | Select when >200 A DC output is required and board space allows larger footprint |
| FF400R12KT4 | 1200 V VRRM, 400 A IF(AV), IGBT+diode hybrid module, different topology | Integrated freewheeling function; not a pure rectifier - unsuitable for AC input stage replacement | Only consider if redesigning to hybrid converter architecture with shared gate drive |
Compared with DD600S16K4 and FF400R12KT4, DDB6U145N16LHOSA1 offers optimal balance of compact ISOPACK size, 145 A rated output, and true dual-common-cathode rectifier functionality - making it uniquely suited for space-constrained, high-efficiency AC/DC front ends where discrete rectifier performance is mandatory.
Availability
DDB6U145N16LHOSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, welding equipment, and renewable energy inverters requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for DDB6U145N16LHOSA1 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.
DDB6U145N16LHOSA1 belongs to Infineon's ISOPACK rectifier module product line, engineered for high-efficiency, high-reliability AC/DC conversion in harsh industrial environments with demanding thermal and isolation requirements.
FAQ
What is the recommended heatsink mounting torque for DDB6U145N16LHOSA1?
The mechanical mounting torque for the M1 screws securing the ISOPACK baseplate to the heatsink is 6 Nm ±15%. Exceeding this value risks ceramic substrate cracking or solder joint fracture. Torque must be applied evenly in diagonal sequence and verified with calibrated tooling before thermal cycling.
Can DDB6U145N16LHOSA1 be used in single-phase rectifier configurations?
Yes - the dual common-cathode topology supports single-phase full-wave rectification by connecting A1 and A2 to opposite AC terminals and K to the positive DC rail. However, its 145 A rating assumes balanced two-arm conduction; unbalanced loading reduces effective current capacity and increases thermal asymmetry.
What is the creepage distance and why does it matter for this module?
The creepage distance is 12.5 mm between terminals and baseplate. This dimension ensures sufficient surface insulation path length to prevent arcing in humid or contaminated environments, meeting IEC 60664-1 requirements for Pollution Degree 2 installations typical in industrial control cabinets.
Does DDB6U145N16LHOSA1 require external snubbers in standard rectifier applications?
No external snubbers are required for standard 50/60 Hz rectification with inductive loads. The module's 1700 V VRSM rating and low stored charge (Qrr not specified but consistent with glass-passivated Si) provide inherent commutation robustness. Snubbers may be needed only in high-dv/dt switching environments like PFC stages.
DDB6U145N16LHOSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Diode Configuration:
- 3 Independent
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1600 V
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- 1.43 V @ 150 A
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 mA @ 1600 V
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- Module
DDB6U145N16LHOSA1 FAQ
1.How can I place an order for DDB6U145N16LHOSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDB6U145N16LHOSA1 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 DDB6U145N16LHOSA1 reliable?
The price and inventory of DDB6U145N16LHOSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDB6U145N16LHOSA1 is usually 5 days.
3.What payment methods are accepted for DDB6U145N16LHOSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDB6U145N16LHOSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDB6U145N16LHOSA1?
DDB6U145N16LHOSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDB6U145N16LHOSA1 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 DDB6U145N16LHOSA1?
For technical support, including DDB6U145N16LHOSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDB6U145N16LHOSA1 requirements.
6.How does Aetrix verify that DDB6U145N16LHOSA1 is sourced from the original manufacturer or authorized distributors?
All DDB6U145N16LHOSA1 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 DDB6U145N16LHOSA1 meets industry standards.
7.What is the process for return or replacement of DDB6U145N16LHOSA1?
All DDB6U145N16LHOSA1 units undergo pre-shipment inspection (PSI). If there is an issue with DDB6U145N16LHOSA1, 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 DDB6U145N16LHOSA1 part is unused and in its original packaging.
Return procedure for DDB6U145N16LHOSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDB6U145N16LHOSA1 Tags
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