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Taiwan Semiconductor Corporation TUAU10KH
- Part No.:
- TUAU10KH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAU10KH.pdf
- Description:
- 80NS, 10A, 800V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:5,980
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Product details
Overview
TUAU10KH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified surface-mount ultrafast rectifier with 800 V repetitive peak reverse voltage (VRRM), 10 A average forward current (IF), and 80 ns reverse recovery time (trr). It features glass-passivated junction, wettable flanks, and TO-277A (SMPC4.6U) package-designed for automotive snubber and freewheeling circuits where thermal robustness and surge resilience are critical.
For engineers reviewing the TUAU10KH datasheet, TUAU10KH pinout, TUAU10KH application, or TUAU10KH equivalent, key selection considerations include its 1.51 V forward voltage at 10 A/25°C, 25 µA reverse leakage at 125°C, 43 pF junction capacitance, -55°C to +150°C operating junction range, and compatibility with lead-free reflow per J-STD-020 Level 1.
Technical Context
The TUAU10KH employs a single-die silicon planar structure with glass passivation to ensure stable reverse blocking and low leakage across temperature. Its ultrafast recovery (trr ≤ 80 ns) enables efficient operation in high-frequency DC–DC converters and automotive lighting drivers where switching losses must be minimized.
Thermally, it delivers RθJL = 5.0°C/W and RθJA = 45°C/W on a 16 mm × 16 mm Cu pad, supporting sustained 10 A conduction under constrained board-level cooling. The TO-277A package's wettable flanks facilitate automated optical solder-joint inspection in automotive production lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Sustains 800 V repetitive reverse voltage without breakdown; suitable for 400 V DC bus systems with safety margin. |
| IF | 10 A - Continuous average forward current rating at case temperature ≤ 115°C; supports high-power automotive loads. |
| trr | ≤ 80 ns - Ultrafast reverse recovery minimizes switching loss and EMI in 100–500 kHz SMPS designs. |
| VF @ 10 A, 25°C | 1.51 V max - Forward drop impacts conduction loss and thermal design; requires heatsinking above ~6 A continuous. |
| IR @ VR, 125°C | 25 µA max - Low leakage preserves efficiency in high-temperature environments like engine compartments. |
| CJ | 43 pF - Low junction capacitance reduces capacitive coupling noise and improves high-frequency rectification fidelity. |
| TJ Range | -55°C to +150°C - Qualified for under-hood automotive use; derates linearly above 115°C case temperature. |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band marking. Matte tin-plated leads, J-STD-002 solderable, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Tab) | Forward current input terminal | Electrically connected to metal tab; requires PCB copper area for thermal dissipation and electrical grounding if used as common return. |
| Cathode (Lead) | Forward current output terminal | Marked by cathode band; carries full load current and must route away from sensitive analog traces to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables use in ASIL-B systems without additional qualification. |
| Glass-passivated junction | Prevents moisture ingress and surface contamination, ensuring long-term reverse leakage stability in humid under-hood environments. |
| Wettable flanks | Enables automated AOI of solder fillet on side walls-critical for zero-defect automotive manufacturing traceability. |
| High IFSM | 520 A peak surge (1 ms) withstand capability supports robust protection against load dump transients in 12 V vehicle systems. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive-meets Tier-1 supplier environmental requirements for global vehicle programs. |
Applications
| Automotive DC–DC Converters | LED Headlamp Freewheeling |
|---|---|
Use Scenario: High-efficiency buck-boost converter supplying 5 V/3 A auxiliary power from 12 V battery in ADAS domain controllers. IC Role / Device Role / Timing Role: Output rectifier handling 10 A pulsed current at 300 kHz switching frequency. Use Value: 80 ns trr and 43 pF CJ reduce switching loss and EMI generation versus standard fast rectifiers. |
Use Scenario: Freewheeling path for 10 A constant-current LED driver in adaptive front lighting systems (AFS). IC Role / Device Role / Timing Role: Clamp diode providing low-loss current recirculation during PWM dimming transitions. Use Value: 1.51 V VF at 10 A minimizes forward conduction loss, improving thermal margin in sealed headlamp housings. |
| Snubber Networks | On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: RC snubber across IGBTs in 6.6 kW EV on-board charger PFC stage to suppress voltage spikes. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy during turn-off. Use Value: 800 V VRRM and 520 A IFSM ensure reliable clamping under worst-case overvoltage events. |
Use Scenario: Auxiliary 12 V supply derived from main DC link for OBC control logic and gate drivers. IC Role / Device Role / Timing Role: Primary rectifier converting high-frequency AC from flyback transformer to regulated DC. Use Value: AEC-Q101 qualification and -55°C to +150°C TJ range guarantee startup and operation across full EV ambient envelope. |
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-10EWH08-M3 | Same 800 V VRRM, 10 A IF, but TO-220AC package; trr = 75 ns, VF = 1.45 V @ 10 A. | Requires through-hole mounting and larger heatsink; not automotive-qualified. | Select when board space allows through-hole assembly and AEC-Q101 is not required. |
| ON Semiconductor MUR1080CT | 800 V, dual-common-cathode configuration; trr = 75 ns, VF = 1.4 V @ 10 A; TO-220AB package. | Offers dual-diode integration but lacks wettable flanks and AEC-Q101 certification. | Choose for cost-sensitive industrial supplies where dual rectification is needed and automotive compliance is unnecessary. |
Compared with VS-10EWH08-M3 and MUR1080CT, the TUAU10KH provides automotive-grade reliability, surface-mount compatibility, and wettable flanks for automated inspection-making it the only option qualified for safety-critical automotive power stages without layout or process adaptation.
Availability
TUAU10KH is available at Aetrix Electronics and suitable for automotive DC–DC converters, LED headlamp drivers, and snubber networks requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TUAU10KH 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 Taiwanese manufacturer specializing in discrete power semiconductors, with ISO/TS 16949-certified automotive production lines and global distribution.
The TUAU10KH belongs to TSC's AEC-Q101-qualified ultrafast rectifier family, engineered specifically for high-reliability automotive power conversion where thermal stability, surge immunity, and automated manufacturability are mandatory.
FAQ
What is the maximum junction temperature rating for the TUAU10KH?
The TUAU10KH has a maximum junction temperature (TJ) of +150°C, validated per AEC-Q101 stress testing. This rating applies across its full VRRM range and supports operation in engine bay environments. Derating begins above 115°C case temperature, and thermal design must maintain TJ ≤ 150°C under worst-case load and ambient conditions. The TUAU10KH datasheet specifies this limit explicitly in Absolute Maximum Ratings Table 1.
Does the TUAU10KH have wettable flanks, and why does it matter?
Yes, the TUAU10KH features wettable flanks on its TO-277A (SMPC4.6U) package, enabling full-side solder fillet formation during reflow. This allows automated optical inspection (AOI) of solder joint integrity-a requirement for zero-defect automotive manufacturing. Wettable flanks directly support PPAP compliance and reduce field failure risk in safety-critical power stages where the TUAU10KH is deployed.
What is the reverse recovery time (trr) of the TUAU10KH, and how is it measured?
The TUAU10KH has a reverse recovery time (trr) of ≤ 80 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per JEDEC standards. This value is confirmed in the Electrical Specifications table on page 2 of the official TUAU10DH–TUAU10MH datasheet (Version A2111). It reflects the device's ultrafast switching behavior essential for minimizing loss in high-frequency power converters.
Is the TUAU10KH RoHS and halogen-free compliant?
Yes, the TUAU10KH is fully RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are documented in the Features section of the official datasheet and verified via material declarations from Taiwan Semiconductor. This ensures alignment with global automotive environmental regulations and Tier-1 supplier sustainability requirements.
What marking code identifies the TUAU10KH on the device body?
The TUAU10KH is marked with "AU10K" on its top surface, as specified in the Absolute Maximum Ratings table of the datasheet. This 4-character code distinguishes it from other variants in the TUAU10xH family (e.g., AU10D for 200 V, AU10M for 1000 V). The marking is laser-etched and visible under standard magnification for traceability and counterfeit prevention during incoming inspection of the TUAU10KH.
TUAU10KH 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):
- 800 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 80 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 43pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMPC4.6U
- Operating Temperature - Junction:
- -55°C ~ 150°C
TUAU10KH FAQ
1.How can I place an order for TUAU10KH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAU10KH 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 TUAU10KH reliable?
The price and inventory of TUAU10KH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAU10KH is usually 5 days.
3.What payment methods are accepted for TUAU10KH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAU10KH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAU10KH?
TUAU10KH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAU10KH 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 TUAU10KH?
For technical support, including TUAU10KH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAU10KH requirements.
6.How does Aetrix verify that TUAU10KH is sourced from the original manufacturer or authorized distributors?
All TUAU10KH 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 TUAU10KH meets industry standards.
7.What is the process for return or replacement of TUAU10KH?
All TUAU10KH units undergo pre-shipment inspection (PSI). If there is an issue with TUAU10KH, 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 TUAU10KH part is unused and in its original packaging.
Return procedure for TUAU10KH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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