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Taiwan Semiconductor Corporation TUAU6GH M3G
- Part No.:
- TUAU6GH M3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAU6GH M3G.pdf
- Description:
- DIODE GEN PURP 400V 6A SMPC4.6U
- Quantity:
- Payment:
- Shipping:
Inventory:2,601
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Product details
Overview
TUAU6GH M3G from Taiwan Semiconductor is a 6A, 400V AEC-Q101-qualified 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 junction-to-lead thermal resistance of 6°C/W - deployed in automotive-grade SMPS and DC-DC converters requiring high efficiency and robust thermal performance.
For engineers reviewing the TUAU6GH M3G datasheet, TUAU6GH M3G pinout, TUAU6GH M3G application, or TUAU6GH M3G equivalent, key selection criteria include its 400V repetitive peak reverse voltage, wettable flank leads for automated optical inspection, glass-passivated junction, moisture sensitivity level 1 rating, and compatibility with JESD201 Class 2 whisker testing - all critical for automotive power module design and industrial converter reliability validation.
Technical Context
The TUAU6GH M3G is a single-die, unidirectional ultrafast recovery rectifier optimized for high-frequency switching applications. Its 50ns reverse recovery time and low junction capacitance (64pF at 1MHz/4V) minimize switching losses in hard-switched topologies, while the glass-passivated chip junction ensures stable operation under thermal cycling and humidity stress.
Designed for automotive-grade reliability, it supports continuous operation up to +150°C junction temperature and meets AEC-Q101 stress test requirements including HTGB, HTRB, and temperature cycling. The TO-277A package enables high-current handling (6A average forward current) with low thermal resistance (RθJL = 6°C/W) when mounted on standard 16mm × 16mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe operating range in boost/flyback output stages |
| IF | 6 A - continuous average forward current at TL = 115°C; supports compact heatsinkless designs in 50–200W converters |
| VF (max) | 1.30 V at 6A/25°C - directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| trr (max) | 50 ns - enables efficient operation at 100–500 kHz switching frequencies without excessive ringing or EMI |
| RθJL | 6 °C/W - allows direct thermal path to PCB copper; reduces need for external heatsinking in space-constrained modules |
| CJ | 64 pF at 1 MHz/4 V - limits capacitive coupling and dv/dt-induced turn-on in bridge configurations |
| IR (max) | 5 µA at 25°C - ensures minimal leakage in high-impedance hold-up or sensing circuits |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band marking and wettable flank leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to input/source side in freewheeling or output rectification paths |
| Cathode | Current exit point during forward conduction; marked by band | Connected to load/ground side; polarity critical for correct rectifier orientation |
| Lead (exposed pad) | Thermal and electrical connection to PCB copper | Functions as integrated thermal slug; must be soldered to ≥16 mm × 16 mm Cu pad per JEDEC standards |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics per stress test requirements (HTGB, HTRB, TC, etc.) |
| Glass-passivated junction | Prevents moisture ingress and metallization corrosion under high-humidity reflow and operational conditions |
| Wettable flank leads | Enables automated optical inspection (AOI) of solder fillet integrity on bottom-side SMT joints |
| Moisture sensitivity level 1 | No dry-pack or baking required prior to reflow; simplifies manufacturing flow and reduces cost |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics compliance |
Applications
| Automotive On-Board Charger (OBC) | Industrial DC-DC Converter |
|---|---|
Use Scenario: Rectifying AC input stage in bidirectional OBCs converting grid AC to battery DC. IC Role / Device Role / Timing Role: Ultrafast output rectifier in PFC boost stage and isolated LLC secondary side. Use Value: 50ns trr and 1.17V VF reduce switching and conduction losses, improving system efficiency >95% at 6.6 kW. | Use Scenario: Output rectification in 48V-to-12V isolated flyback or forward converters for PLC controllers. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted topology. Use Value: RθJL = 6°C/W enables operation at full 6A load without forced air cooling in sealed enclosures. |
| Solar Microinverter DC Link | Server PSU Secondary Side |
Use Scenario: DC bus clamping and reverse-polarity protection in string-level microinverters. IC Role / Device Role / Timing Role: Unidirectional clamp rectifier in half-bridge snubber networks. Use Value: 400V VRRM safely handles transient overvoltage spikes up to 1.2× nominal DC link voltage. | Use Scenario: Secondary-side output rectification in 1U server PSUs with high-power density requirements. IC Role / Device Role / Timing Role: High-current freewheeling diode in multiphase buck-derived VRMs. Use Value: Wettable flank leads ensure AOI-verified solder joint reliability across 100k+ unit production runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-6EWH04-M3 | Same 6A/400V rating; VF = 1.25V max @ 6A/25°C; trr = 55ns; TO-277A package | Slightly higher VF increases conduction loss by ~5% at full load; identical thermal footprint | Acceptable where margin exists in thermal budget and efficiency targets allow 0.1V higher VF |
| ON Semiconductor MUR640CT | Dual common-cathode die in TO-220AC; VF = 1.25V @ 6A/25°C; trr = 60ns; no AEC-Q101 qualification | Through-hole mounting only; lacks automotive qualification and wettable flank capability | Only suitable for non-automotive, non-AOI-dependent industrial designs with available board area |
Compared with VS-6EWH04-M3 and MUR640CT, the TUAU6GH M3G delivers lower forward voltage and faster recovery in an AEC-Q101-qualified, AOI-compatible surface-mount package - making it the preferred choice for automotive and high-reliability industrial power supplies where thermal efficiency, manufacturability, and qualification compliance are jointly prioritized.
Availability
TUAU6GH M3G is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC-DC converters, and solar microinverter designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TUAU6GH M3G 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, specializing in power rectifiers, TVS diodes, MOSFETs, and automotive-qualified components.
The TUAU6xH series was developed specifically for high-efficiency, high-reliability automotive and industrial power conversion - emphasizing ultrafast recovery, thermal robustness, and process-controlled surface-mount packaging for automated assembly.
FAQ
What is the maximum junction temperature rating for TUAU6GH M3G?
The TUAU6GH M3G has a maximum junction temperature (TJ) rating of +150°C, validated per AEC-Q101 requirements. This allows continuous operation in under-hood automotive environments and sealed industrial enclosures without derating below 6A up to lead temperature of 115°C. Thermal design must account for RθJL = 6°C/W and recommended 16mm × 16mm Cu pad layout to maintain TJ ≤ 150°C.
Does TUAU6GH M3G support automated optical inspection (AOI)?
Yes, the TUAU6GH M3G features wettable flank leads specifically designed for AOI compatibility. The side-wettable geometry enables reliable solder fillet imaging during post-reflow inspection, supporting zero-defect manufacturing goals in automotive electronics production. This feature is confirmed in the mechanical data section of the official TSC datasheet (Version C2111).
Is TUAU6GH M3G 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, and thermal pad layout. Voltage rating differences (200V–1000V) do not affect mechanical or soldering compatibility, enabling drop-in replacement during design iteration or voltage binning.
What is the reverse recovery time specification for TUAU6GH M3G?
The TUAU6GH M3G has a maximum reverse recovery time (trr) of 50 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultrafast recovery enables clean switching in high-frequency topologies such as LLC resonant converters and active-clamp forward circuits, minimizing voltage overshoot and EMI generation in the TUAU6GH M3G's operating range.
How does the glass passivation layer improve reliability of TUAU6GH M3G?
The glass passivation layer on the TUAU6GH M3G's silicon junction prevents electrochemical migration and intermetallic corrosion under humid reflow and operational conditions. It enhances long-term stability in automotive under-hood environments and industrial settings with condensation risk, directly supporting AEC-Q101 qualification for high-humidity storage and temperature cycling tests.
TUAU6GH M3G 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMPC4.6U
- Operating Temperature - Junction:
- -55°C ~ 175°C
TUAU6GH M3G FAQ
1.How can I place an order for TUAU6GH M3G through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAU6GH M3G 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 M3G reliable?
The price and inventory of TUAU6GH M3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAU6GH M3G is usually 5 days.
3.What payment methods are accepted for TUAU6GH M3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAU6GH M3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAU6GH M3G?
TUAU6GH M3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAU6GH M3G 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 M3G?
For technical support, including TUAU6GH M3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAU6GH M3G requirements.
6.How does Aetrix verify that TUAU6GH M3G is sourced from the original manufacturer or authorized distributors?
All TUAU6GH M3G 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 M3G meets industry standards.
7.What is the process for return or replacement of TUAU6GH M3G?
All TUAU6GH M3G units undergo pre-shipment inspection (PSI). If there is an issue with TUAU6GH M3G, 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 M3G part is unused and in its original packaging.
Return procedure for TUAU6GH M3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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