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Taiwan Semiconductor Corporation TUAU4JH
- Part No.:
- TUAU4JH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAU4JH.pdf
- Description:
- 50NS, 4A, 600V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
TUAU4JH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified surface-mount fast recovery rectifier with 600 V repetitive peak reverse voltage (VRRM), 4 A average forward current (IF), and 1.28 V typical forward voltage at 4 A and 25°C. It features wettable flanks, glass-passivated junction, and TO-277A (SMPC4.6U) package for automotive-grade reliability in snubber and freewheeling circuits.
For engineers reviewing the TUAU4JH datasheet, TUAU4JH pinout, TUAU4JH application, or TUAU4JH equivalent, key selection criteria include its 600 V VRRM, 50 ns reverse recovery time (trr), 1.28 V VF @ 4 A/25°C, -55°C to +175°C operating junction temperature range, and AEC-Q101 qualification for automotive power conversion systems.
Technical Context
The TUAU4JH is a single-die, silicon planar fast recovery rectifier optimized for high-frequency switching applications. Its 600 V VRRM, 50 ns trr, and low 62 pF junction capacitance (CJ) enable efficient operation in DC–DC converters and snubbers where rapid turn-off and minimal capacitive loading are critical.
Thermally, it delivers RθJL = 5.1°C/W and RθJA = 45°C/W on a 16 mm × 16 mm Cu pad PCB, supporting sustained 4 A conduction with junction temperatures up to +175°C. The device's wettable flank leads ensure reliable automated optical inspection (AOI) in automotive SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Blocks up to 600 V reverse voltage without breakdown; suitable for 48 V–400 V bus-level automotive power stages. |
| IF | 4 A - Continuous average forward current rating; supports compact thermal design in space-constrained modules. |
| trr | 50 ns - Fast reverse recovery enables >100 kHz switching in flyback and boost converters with low switching loss. |
| VF @ 4 A, 25°C | 1.28 V (typ) - Low conduction loss improves efficiency in high-duty-cycle freewheeling paths. |
| CJ @ 1 MHz, 4 V | 62 pF - Minimizes capacitive coupling noise and EMI in high-dv/dt snubber networks. |
| Junction Temp Range | -55°C to +175°C - Enables under-hood deployment in automotive lighting and engine control modules. |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band polarity marking and matte tin-plated wettable flank leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; must handle full 4 A RMS current and surge peaks up to 100 A. |
| Cathode | Forward current exit point | Connected to higher-potential rail; marked by visible cathode band; wettable flank enables AOI-compatible solder joint verification. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, and UHAST-enables use in ASIL-B systems without additional qualification. |
| Glass passivated junction | Provides robust moisture and contamination resistance for long-term reliability in humid under-hood environments. |
| Wettable flank leads | Enables automated optical inspection of solder fillets on bottom-side terminals-critical for zero-defect automotive manufacturing. |
| High IFSM (100 A) | Withstands short-duration inrush and fault currents in DC–DC input stages without permanent degradation. |
Applications
| Automotive LED Headlamp Driver | 48 V–12 V DC–DC Buck Converter |
|---|---|
Use Scenario: High-brightness LED arrays powered from vehicle battery via constant-current buck regulator with synchronous rectification. IC Role / Device Role / Timing Role: Freewheeling diode during low-side switch off-time; clamps inductive kickback and recirculates energy. Use Value: 50 ns trr and 1.28 V VF minimize conduction and switching losses, enabling >94% efficiency at 4 A output. | Use Scenario: Step-down converter supplying infotainment ECUs from 48 V mild-hybrid architecture. IC Role / Device Role / Timing Role: Output rectifier in non-synchronous buck topology; conducts during high-side FET off-phase. Use Value: 600 V VRRM provides 2× safety margin over 48 V bus transients; TO-277A package fits tight layout constraints. |
| Snubber Network in Ignition Coil Driver | Brake Light Power Supply |
Use Scenario: RC snubber across IGBT collector-emitter to suppress voltage spikes during turn-off in engine ignition systems. IC Role / Device Role / Timing Role: Clamping diode that conducts transient energy into snubber capacitor during fast dv/dt events. Use Value: 62 pF CJ limits capacitive loading on driver gate; 100 A IFSM absorbs repetitive 50–100 A surge pulses. | Use Scenario: Input rectification and hold-up in 12 V brake light module powered from vehicle alternator. IC Role / Device Role / Timing Role: Primary AC–DC rectifier converting alternator AC output to stable DC bus. Use Value: -55°C to +175°C TJ range ensures operation during cold cranking and under-hood thermal soak; AEC-Q101 ensures lifetime reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4R06S | 600 V VRRM, 4 A IF, 55 ns trr, TO-277A package, but no AEC-Q101 qualification. | Lacks automotive qualification; requires external validation for under-hood use. | Prefer TUAU4JH when AEC-Q101 compliance is mandatory; STTH4R06S acceptable for industrial DC–DC only. |
| ES4D | 200 V VRRM, same IF/package, but significantly lower voltage rating and 35 ns trr. | Not suitable for 48 V+ systems; limited to 24 V or lower bus applications. | Select ES4D only for cost-sensitive 24 V lighting or auxiliary supplies where 600 V margin is unnecessary. |
Compared with STTH4R06S and ES4D, the TUAU4JH uniquely combines AEC-Q101 qualification, 600 V rating, and 50 ns recovery in TO-277A-making it the only drop-in solution for automotive 48 V–400 V freewheeling and snubbing where qualification and voltage margin are jointly required.
Availability
TUAU4JH is available at Aetrix Electronics and suitable for automotive LED drivers, 48 V DC–DC converters, and brake light power supplies requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for TUAU4JH 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, specializing in power devices, rectifiers, and protection components.
The TUAU4JH belongs to TSC's AEC-Q101-qualified surface-mount fast recovery rectifier family, engineered specifically for high-reliability automotive power conversion-including lighting, body electronics, and 48 V mild-hybrid subsystems.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the TUAU4JH?
The TUAU4JH has a VRRM of 600 V, confirmed in the Absolute Maximum Ratings table. This rating allows the device to safely block reverse voltages up to 600 V in continuous operation, making it appropriate for 48 V and 400 V automotive power architectures with adequate safety margin. The TUAU4JH maintains this rating across its full operating temperature range.
Is the TUAU4JH qualified for automotive applications?
Yes, the TUAU4JH is explicitly AEC-Q101 qualified, as stated in the FEATURES section. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). The device is intended for use in automotive power electronics such as LED drivers and DC–DC converters where reliability under harsh environmental conditions is required.
What is the forward voltage (VF) of the TUAU4JH at 4 A and 25°C?
The TUAU4JH exhibits a typical forward voltage of 1.28 V at 4 A and 25°C, with a maximum of 1.7 V under those conditions. This value is specified in the Electrical Specifications table and reflects conduction loss under nominal operating conditions. At elevated junction temperatures (e.g., 125°C), VF drops to 1.04 V (typ), improving efficiency in thermally demanding applications.
Does the TUAU4JH have wettable flank leads?
Yes, the TUAU4JH features wettable flank leads, as highlighted in the FEATURES list. These leads extend the solderable surface down the side of the TO-277A (SMPC4.6U) package, enabling automated optical inspection (AOI) of solder fillets-a critical requirement for zero-defect automotive manufacturing and IPC Class 3 assembly standards.
What is the reverse recovery time (trr) of the TUAU4JH?
The TUAU4JH 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 fast recovery characteristic minimizes switching losses and EMI generation in high-frequency DC–DC topologies such as buck and flyback converters, directly supporting efficient operation above 100 kHz.
TUAU4JH 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):
- 600 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 62pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMPC4.6U
- Operating Temperature - Junction:
- -55°C ~ 175°C
TUAU4JH FAQ
1.How can I place an order for TUAU4JH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAU4JH 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 TUAU4JH reliable?
The price and inventory of TUAU4JH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAU4JH is usually 5 days.
3.What payment methods are accepted for TUAU4JH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAU4JH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAU4JH?
TUAU4JH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAU4JH 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 TUAU4JH?
For technical support, including TUAU4JH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAU4JH requirements.
6.How does Aetrix verify that TUAU4JH is sourced from the original manufacturer or authorized distributors?
All TUAU4JH 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 TUAU4JH meets industry standards.
7.What is the process for return or replacement of TUAU4JH?
All TUAU4JH units undergo pre-shipment inspection (PSI). If there is an issue with TUAU4JH, 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 TUAU4JH part is unused and in its original packaging.
Return procedure for TUAU4JH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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