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Taiwan Semiconductor Corporation TUAU6DH
- Part No.:
- TUAU6DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAU6DH.pdf
- Description:
- 50NS, 6A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
TUAU6DH from Taiwan Semiconductor is a 6A, 200V AEC-Q101-qualified surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring glass-passivated junction, 0.89V max forward voltage at 6A/25°C, 140A surge rating, and wettable flank terminals for automated optical inspection. It serves as a high-efficiency freewheeling or output rectifier in automotive-grade DC/DC converters.
For engineers reviewing the TUAU6DH datasheet, TUAU6DH pinout, TUAU6DH application, or TUAU6DH equivalent, key selection criteria include its 200V VRRM, 6A continuous forward current, 50ns reverse recovery time, junction-to-lead thermal resistance of 6°C/W, and AEC-Q101 qualification for under-hood power electronics.
Technical Context
The TUAU6DH is a single-die, fast-recovery silicon rectifier optimized for high-frequency switching applications. Its 50ns trr and low 0.89V VF at 6A/25°C enable reduced conduction and switching losses in SMPS topologies.
Thermally, it delivers RθJL = 6°C/W on a 16mm × 16mm Cu pad, supporting operation up to 175°C junction temperature. The TO-277A package includes wettable flanks and matte tin-plated leads compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback or buck-boost output stages |
| IF | 6 A - Continuous forward current rating at 175°C junction; supports compact heatsink-free designs up to ~15W output |
| IFSM | 140 A - Non-repetitive surge current (8.3ms half-sine); withstands inrush and transient overloads in automotive start-stop systems |
| VF @ 6A, 25°C | 0.89 V max - Low conduction loss enables >95% efficiency in 12V–48V secondary-side rectification |
| trr | 50 ns max - Fast recovery minimizes switching loss and EMI in 100–500 kHz SMPS designs |
| RθJL | 6 °C/W - Enables direct thermal coupling to PCB copper; simplifies thermal design versus SOD-123 or SMA packages |
| Junction Temp | −55°C to +175°C - Full automotive temperature range support without derating below 175°C |
Pinout & Package
TO-277A (SMPC4.6U) surface-mount package with cathode-indicating band and wettable flank terminals. Molded compound meets UL 94V-0; weight ≈ 0.104g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to switching node or transformer secondary; accepts 6A continuous, 140A surge |
| Cathode | Output current terminal | Connected to output rail or ground return; marked by visible band; supports automated AOI |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control modules and ADAS power supplies |
| Glass-passivated junction | Enhances long-term reliability and moisture resistance in humid under-hood environments |
| Wettable flank terminals | Enables automated optical inspection of solder joints on bottom-side terminations |
| Low VF and fast trr | Reduces total power loss (conduction + switching) vs. standard recovery diodes in 200kHz+ converters |
| Moisture sensitivity level 1 | No baking required before reflow; compatible with standard SMT assembly lines |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in high-current, space-constrained layouts. Use Value: Eliminates gate-drive complexity while maintaining <1V forward drop and 50ns recovery at 6A. | Use Scenario: Secondary-side rectification in 30W industrial AC/DC adapter with 230VAC input. IC Role / Device Role / Timing Role: Freewheeling diode in flyback topology operating at 250kHz. Use Value: 0.89V VF reduces conduction loss by 22% vs. legacy 1N5822, improving full-load efficiency to 89.5%. |
| Solar Microinverter DC Link | Motor Drive Brake Circuits |
Use Scenario: DC link clamping and regeneration path in single-phase solar microinverters. IC Role / Device Role / Timing Role: High-voltage clamp diode absorbing inductive kickback during IGBT turn-off. Use Value: 200V VRRM and 140A IFSM safely handle 100V–180V DC bus transients without snubbers. | Use Scenario: Regenerative braking path in 24V BLDC motor drives for warehouse AGVs. IC Role / Device Role / Timing Role: Freewheeling diode across motor windings during PWM off-time. Use Value: 50ns trr prevents reverse recovery oscillation, reducing audible noise and EMI in 20kHz PWM operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-6EWH02-M3/45 | 200V VRRM, 6A IF, 55ns trr, TO-277A package, no AEC-Q101 qualification | Rated for commercial/industrial use only; not validated for automotive temperature cycling or vibration | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification overhead |
| ON Semiconductor MUR620CT | 200V VRRM, 6A IF, 60ns trr, TO-220AC package, AEC-Q101 qualified | Through-hole mounting; higher RθJA (55°C/W) requires heatsink for same power density | Select when board-level mechanical robustness or legacy through-hole assembly is prioritized over SMT footprint |
Compared with VS-6EWH02-M3/45 and MUR620CT, the TUAU6DH uniquely combines AEC-Q101 qualification, TO-277A SMT compatibility, 50ns trr, and 6°C/W RθJL-enabling smaller, lighter, and more reliable automotive power stages without layout or thermal redesign.
Availability
TUAU6DH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and solar microinverter DC link circuits requiring stable component supply, AEC-Q101 compliance, and high thermal performance in surface-mount form factor.
Supply support for TUAU6DH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The TUAU6xH series was developed specifically for high-reliability, high-efficiency surface-mount rectification in automotive power conversion systems where AEC-Q101 compliance, thermal performance, and automated assembly compatibility are mandatory.
FAQ
What is the maximum junction temperature rating for the TUAU6DH?
The TUAU6DH has a maximum junction temperature (TJ) rating of +175°C, with storage temperature ranging from −55°C to +175°C. This rating applies across its full 200V VRRM and 6A IF operational envelope and is validated per AEC-Q101 stress testing protocols. The TUAU6DH maintains this rating without derating until ambient or board conditions exceed thermal limits defined by its RθJL = 6°C/W specification.
Is the TUAU6DH pin-compatible with other parts in the TUAU6xH family?
No-the TUAU6DH shares the TO-277A (SMPC4.6U) package and 2-pin anode/cathode configuration with all TUAU6xH variants (e.g., TUAU6GH, TUAU6MH), but voltage ratings differ: TUAU6DH is rated for 200V VRRM, while others range up to 1000V. Substituting TUAU6DH for a higher-voltage variant risks catastrophic failure under reverse bias; always verify VRRM against circuit requirements before replacement.
Does the TUAU6DH require special handling during reflow soldering?
No-the TUAU6DH has Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into standard lead-free reflow profiles without baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the TO-277A package is designed for compatibility with automated pick-and-place and AOI systems.
What is the reverse recovery time (trr) specification for the TUAU6DH?
The TUAU6DH has a maximum reverse recovery time (trr) of 50ns, measured at IF = 0.5A, IR = 1.0A, and IRR = 0.25A. This value is confirmed across the full operating temperature range (−55°C to +175°C) and enables clean commutation in high-frequency switch-mode topologies such as active-clamp forward and resonant LLC converters where fast diode switching is critical.
How does the TUAU6DH's forward voltage compare at elevated temperatures?
At 6A and 125°C junction temperature, the TUAU6DH exhibits a typical forward voltage of 0.76V and a maximum of 0.89V-lower than its 25°C rating. This negative temperature coefficient improves system efficiency under thermal stress, reducing conduction loss as temperature rises. Data is verified per electrical specifications table in the official TSC C2111 datasheet revision.
TUAU6DH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 64pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMPC4.6U
- Operating Temperature - Junction:
- -55°C ~ 175°C
TUAU6DH FAQ
1.How can I place an order for TUAU6DH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAU6DH 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 TUAU6DH reliable?
The price and inventory of TUAU6DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAU6DH is usually 5 days.
3.What payment methods are accepted for TUAU6DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAU6DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAU6DH?
TUAU6DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAU6DH 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 TUAU6DH?
For technical support, including TUAU6DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAU6DH requirements.
6.How does Aetrix verify that TUAU6DH is sourced from the original manufacturer or authorized distributors?
All TUAU6DH 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 TUAU6DH meets industry standards.
7.What is the process for return or replacement of TUAU6DH?
All TUAU6DH units undergo pre-shipment inspection (PSI). If there is an issue with TUAU6DH, 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 TUAU6DH part is unused and in its original packaging.
Return procedure for TUAU6DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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