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Taiwan Semiconductor Corporation TUAU6GH
- Part No.:
- TUAU6GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAU6GH.pdf
- Description:
- 50NS, 6A, 400V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
TUAU6GH from Taiwan Semiconductor is a 6A, 400V repetitive peak reverse voltage (VRRM) surface-mount ultrafast rectifier in TO-277A (SMPC4.6U) package, featuring 1.17V max forward voltage at 6A/25°C, 50ns max reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability-used as freewheeling diode in DC-DC converters.
For engineers reviewing the TUAU6GH datasheet, TUAU6GH pinout, TUAU6GH application, or TUAU6GH equivalent, key selection criteria include VRRM = 400V, IF = 6A, trr ≤ 50ns, RθJL = 6°C/W, and wettable flank leads for automated optical inspection in high-reliability power supplies.
Technical Context
This device is a single-die, glass-passivated silicon junction rectifier optimized for high-efficiency switching applications. Its ultrafast recovery (trr ≤ 50ns) and low conduction loss (VF = 1.17V @ 6A, 25°C) reduce switching losses in SMPS and inverters.
Thermally, it delivers RθJL = 6°C/W and RθJC = 9°C/W when mounted on a 16mm × 16mm Cu pad, supporting continuous operation up to TJ = 150°C with 140A surge capability (8.3ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in flyback or boost stages |
| IF | 6 A - Continuous average forward current; supports 75W–100W power conversion at typical efficiency |
| trr | ≤ 50 ns - Ultrafast recovery minimizes switching loss and EMI in 100–500 kHz converters |
| VF | 1.17 V max @ 6A, 25°C - Low conduction loss improves thermal margin and system efficiency |
| RθJL | 6 °C/W - Enables direct thermal coupling to PCB copper, simplifying heatsinking in space-constrained layouts |
| IFSM | 140 A @ 8.3 ms - Withstands high-energy transients during startup or fault conditions |
| Junction Temp | −55°C to +150°C - Rated for under-hood automotive environments and industrial ambient extremes |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band polarity marking and wettable flank leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; requires thermal relief on PCB pour |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to output rail or switching node; critical for EMI path control |
| Lead (exposed tab) | Thermal and electrical connection to cathode | Integral cathode extension; must be soldered to large Cu area for RθJL = 6°C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Glass passivated junction | Enhances humidity resistance and long-term reliability in harsh environments |
| Wettable flank leads | Enables automated AOI verification of solder joint integrity on bottom-side terminations |
| Moisture sensitivity level 1 | No bake requirement before reflow; compatible with standard SMT assembly lines |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for green manufacturing |
Applications
| Switch Mode Power Supply | Inverter Output Stage |
|---|---|
Use Scenario: Secondary-side rectification in 65–100W AC-DC adapters and telecom PSUs. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles 6A DC output current. Use Value: 1.17V VF reduces conduction loss by ~12% vs. standard FRD alternatives, improving full-load efficiency. | Use Scenario: DC bus freewheeling in 3-phase motor inverters for HVAC and industrial drives. IC Role / Device Role / Timing Role: Anti-parallel diode across IGBTs; clamps inductive kickback during PWM commutation. Use Value: 50ns trr limits reverse recovery charge (Qrr), suppressing voltage overshoot and reducing snubber losses. |
| Automotive DC-DC Converter | Solar Microinverter Auxiliary Supply |
Use Scenario: 12V–48V bidirectional DC-DC stage in 48V mild hybrid systems. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in high-side buck topology; operates at 200–300 kHz. Use Value: AEC-Q101 rating and −55°C to +150°C operation ensure compliance with automotive environmental stress profiles. | Use Scenario: Auxiliary bias supply rectification in string-level solar microinverters. IC Role / Device Role / Timing Role: Input rectifier for isolated flyback supplying gate drivers and MCU rails. Use Value: RθJL = 6°C/W enables compact layout without external heatsink, reducing BOM cost and footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06S | VRRM = 600V, trr = 35ns, VF = 1.25V @ 6A, TO-277A | Higher VRRM margin but higher VF; better for 400–600V bus designs | Select when higher voltage headroom or faster recovery is prioritized over conduction loss |
| ON Semi MUR640CT | Dual common-cathode configuration, VRRM = 400V, trr = 60ns, VF = 1.20V @ 6A, TO-220AC | Through-hole package; no wettable flanks; dual-diode topology | Choose only if board-level assembly uses through-hole process or dual-diode functionality is required |
Compared with STTH6L06S and MUR640CT, the TUAU6GH offers optimal balance of 400V rating, 50ns recovery, low VF, AEC-Q101 qualification, and SMT-compatible wettable flanks-making it preferred for space-constrained, automotive-qualified, high-frequency SMPS designs.
Availability
TUAU6GH is available at Aetrix Electronics and suitable for switch mode power supplies, automotive DC-DC converters, and solar microinverter auxiliary supplies requiring stable component supply, AEC-Q101 compliance, and consistent TO-277A packaging.
Supply support for TUAU6GH 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 Company (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 belongs to TSC's AEC-Q101-qualified ultrafast rectifier product line, engineered specifically for high-efficiency, high-reliability switching power conversion in automotive and industrial environments.
FAQ
What is the maximum junction temperature rating for TUAU6GH?
The TUAU6GH has a maximum junction temperature (TJ) rating of +150°C, validated per its AEC-Q101 qualification and thermal specifications. This allows reliable operation in under-hood automotive applications and high-ambient industrial environments. Derating curves confirm usable current capacity down to zero amps at 150°C ambient when properly mounted. The TUAU6GH must not exceed this limit during steady-state or transient conditions to maintain reliability.
Does TUAU6GH support automated optical inspection (AOI)?
Yes, the TUAU6GH features wettable flank leads per JESD 22-B108, enabling reliable solder joint inspection using standard AOI systems. The side-wettable geometry ensures consistent solder fillet formation on the lead edges, critical for detecting voids or insufficient solder in high-volume SMT lines. This feature is explicitly confirmed in the mechanical data section of the TUAU6GH datasheet and supports IPC-A-610 Class 2 and Class 3 acceptance criteria.
What is the reverse recovery time (trr) specification for TUAU6GH?
The TUAU6GH has a maximum reverse recovery time (trr) of 50 ns under specified test conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, and TJ = 25°C. This ultrafast value is confirmed in the Electrical Specifications table and directly contributes to reduced switching loss and EMI in high-frequency converters. No typical or minimum trr is guaranteed-designers must use the 50 ns max value for worst-case timing analysis.
Is TUAU6GH pin-compatible with other devices in the TUAU6xH family?
Yes, all TUAU6xH variants-including TUAU6DH, TUAU6GH, TUAU6JH, TUAU6KH, and TUAU6MH-share identical TO-277A (SMPC4.6U) package dimensions, pinout, thermal pad layout, and mounting requirements. Voltage rating differences (200V–1000V) do not affect mechanical or electrical interface compatibility. Designers may substitute within the family without PCB revision, provided voltage derating and thermal margins are verified for the new VRRM grade.
What does the marking code "AU6GH" indicate on the TUAU6GH device?
The marking code "AU6GH" laser-etched on the TUAU6GH case identifies the specific variant: "AU" denotes the ultrafast rectifier series, "6" indicates 6A current rating, "G" specifies 400V VRRM, and "H" confirms the TO-277A package. This matches the ordering code TUAU6GH and distinguishes it from other family members like AU6DH (200V) or AU6JH (600V). Date code and factory code appear separately per marking diagram in the datasheet.
TUAU6GH 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):
- 400 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 @ 400 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
TUAU6GH FAQ
1.How can I place an order for TUAU6GH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAU6GH 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 TUAU6GH reliable?
The price and inventory of TUAU6GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAU6GH is usually 5 days.
3.What payment methods are accepted for TUAU6GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAU6GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAU6GH?
TUAU6GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAU6GH 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 TUAU6GH?
For technical support, including TUAU6GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAU6GH requirements.
6.How does Aetrix verify that TUAU6GH is sourced from the original manufacturer or authorized distributors?
All TUAU6GH 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 TUAU6GH meets industry standards.
7.What is the process for return or replacement of TUAU6GH?
All TUAU6GH units undergo pre-shipment inspection (PSI). If there is an issue with TUAU6GH, 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 TUAU6GH part is unused and in its original packaging.
Return procedure for TUAU6GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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