My Inquiry
My Account
Taiwan Semiconductor Corporation TUAS6DH
- Part No.:
- TUAS6DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TUAS6DH.pdf
- Description:
- 6A, 200V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TUAS6DH from Taiwan Semiconductor is a 6A, 200V standard surface-mount rectifier diode in TO-277A (SMPC4.6U) package, featuring AEC-Q101 qualification, glass passivated junction, 140A surge capability, and wettable flank for automated optical inspection. It serves as primary AC/DC rectification element in automotive DC-DC converters and lighting modules.
For engineers reviewing the TUAS6DH datasheet, TUAS6DH pinout, TUAS6DH application, or TUAS6DH equivalent, key selection criteria include its 200V repetitive peak reverse voltage, 0.98V max forward voltage at 6A/25°C, 5°C/W junction-to-lead thermal resistance, AEC-Q101 qualification, and TO-277A mechanical compatibility with IPC-7351B land patterns.
Technical Context
The TUAS6DH is a single-die, standard recovery silicon rectifier optimized for high-reliability automotive power conversion. Its glass passivated junction ensures stable reverse leakage (<5µA @ 25°C) and robust surge tolerance (140A IFSM, 8.3ms), while the wettable flank design supports solder joint quality verification in SMT lines.
Thermal performance is defined by RθJL = 5°C/W and RθJA = 45°C/W on a 16mm × 16mm Cu pad PCB. The device operates across -55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines minimum system isolation margin in 24V/48V automotive DC-DC inputs |
| IF | 6 A - Continuous average forward current rating at TC = 115°C; determines heatsink-free operation in compact LED driver PCBs |
| IFSM | 140 A - Non-repetitive surge current (8.3ms half-sine); enables survival during load dump transients in vehicle electrical systems |
| VF @ 6A/25°C | 0.98 V max - Forward voltage drop directly impacts conduction loss and thermal rise in high-duty-cycle rectifiers |
| RθJL | 5 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to copper pour for passive cooling without external heatsinks |
| IR @ 25°C | 5 µA max - Reverse leakage current at rated VR; critical for low-power standby circuits and snubber energy retention |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with cathode band marking. Matte tin-plated leads, UL 94V-0 molding compound, 0.107g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to AC input or switching node; requires adequate trace width to handle 6A continuous and 140A surge currents |
| Cathode | Output terminal for forward conduction path | Connected to bulk capacitor or downstream regulator; polarity marked by visible cathode band on top surface |
| Lead (exposed thermal pad) | Thermal and electrical connection to cathode | Integral part of cathode structure; must be soldered to ≥16mm×16mm Cu pad for specified RθJL = 5°C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test conditions including temperature cycling, HTRB, and ESD |
| Wettable flank | Side-wall plating enables automated AOI detection of solder fillet height and voiding on reflowed joints |
| Glass passivated junction | Eliminates need for conformal coating in humid environments; maintains IR stability over lifetime in engine bay exposure |
| J-STD-020 Level 1 | Zero bake requirement prior to reflow; supports immediate placement after dry pack opening in high-volume SMT lines |
Applications
| Automotive DC-DC Converter | LED Headlamp Driver |
|---|---|
Use Scenario: Primary rectification stage in 12V-to-48V bidirectional DC-DC converter for mild hybrid vehicles. IC Role / Device Role / Timing Role: Standard recovery rectifier handling 6A average output current with transient surges up to 140A during load dump events. Use Value: AEC-Q101 qualification and 150°C TJ max ensure reliability in under-hood ambient temperatures exceeding 105°C. | Use Scenario: Output rectification in constant-current LED driver powering adaptive front-lighting systems. IC Role / Device Role / Timing Role: Freewheeling and output rectification element operating continuously at 6A with minimal VF-induced thermal rise. Use Value: 0.98V max VF at 6A/25°C reduces conduction loss by ~12% versus legacy 1.1V diodes, enabling smaller heatsinks in space-constrained headlamp modules. |
| Snubber Network | Start-Stop System Rectifier |
Use Scenario: Voltage-clamping snubber in high-frequency synchronous buck controller for battery management systems. IC Role / Device Role / Timing Role: Fast-recovery-capable standard rectifier absorbing turn-off energy from MOSFETs during switching transitions. Use Value: 43pF junction capacitance at 4V bias minimizes capacitive loading on gate drivers while maintaining low IR for efficient energy recycling. | Use Scenario: Input rectification in 12V auxiliary power supply for engine start-stop control electronics. IC Role / Device Role / Timing Role: Main AC/DC rectifier converting alternator output to regulated 12V rail during frequent engine restart cycles. Use Value: 140A IFSM rating withstands repeated cranking surges without degradation, supporting >100,000 start-stop cycles per vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-6EWH02-M3 | 200V VRRM, 6A IF, TO-277A, but AEC-Q101 not claimed; VF = 1.05V max @ 6A | Lacks formal automotive qualification; suitable for industrial DC-DC where AEC-Q101 is not mandated | Select when cost sensitivity outweighs automotive compliance requirements and thermal margin allows higher VF |
| ON Semiconductor MUR620CT | 200V VRRM, 6A IF, but TO-220AC package; fast recovery (trr = 35ns); VF = 1.15V max @ 6A | Through-hole mounting only; higher VF and trr increase switching losses in high-frequency converters | Choose only if legacy TO-220 footprint reuse is mandatory and board-level vibration is not a concern |
Compared with VS-6EWH02-M3 and MUR620CT, the TUAS6DH uniquely combines AEC-Q101 qualification, wettable flank for AOI, and industry-low 0.98V VF in surface-mount TO-277A - making it the preferred choice for new automotive designs requiring zero-defect SMT yield and thermal efficiency.
Availability
TUAS6DH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and start-stop system power supplies requiring stable component supply, AEC-Q101 compliance, and high-volume tape-and-reel delivery.
Supply support for TUAS6DH 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 TUAS6DH belongs to TSC's AEC-Q101-qualified surface-mount rectifier family, engineered specifically for high-reliability automotive power conversion where thermal robustness, optical inspectability, and surge resilience are non-negotiable.
FAQ
What is the maximum junction temperature rating for TUAS6DH?
The TUAS6DH has a maximum junction temperature (TJ MAX) of +150°C, validated across its full operating range from -55°C to +150°C. This rating enables reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C, provided the thermal design achieves the specified RθJL = 5°C/W via proper PCB copper pad implementation. The TUAS6DH maintains stable electrical parameters-including IR and VF-up to this limit.
Is TUAS6DH pin-compatible with other devices in the TUAS6xH series?
No, TUAS6DH is not pin-compatible with other TUAS6xH variants in terms of electrical function, though all share the identical TO-277A (SMPC4.6U) package and pinout. The "x" denotes different VRRM ratings (e.g., TUAS6GH = 400V), so substituting TUAS6DH for a higher-voltage variant risks reverse breakdown. Mechanical fit is identical, but electrical replacement requires validation against system voltage stress margins.
Does TUAS6DH require baking before reflow soldering?
No, TUAS6DH does not require baking prior to reflow. It is rated J-STD-020 Level 1 for moisture sensitivity, meaning it may be placed directly onto the SMT line after dry pack opening with no floor life limitation or preconditioning. This eliminates bake steps in high-throughput automotive electronics manufacturing and reduces risk of lead oxidation or flux residue issues.
What is the significance of the wettable flank feature on TUAS6DH?
The wettable flank on TUAS6DH refers to intentional side-wall plating on the molded leads, enabling automated optical inspection (AOI) systems to verify solder fillet formation and detect voids or insufficient wetting during reflow. This feature directly supports zero-defect quality goals in automotive electronics manufacturing and is a key enabler for process traceability in IATF 16949-certified lines using the TUAS6DH.
How does TUAS6DH's forward voltage compare at elevated temperature?
At 6A and TJ = 125°C, TUAS6DH's forward voltage is 0.88V (typical), lower than its 0.98V max at 25°C due to the negative temperature coefficient of silicon PN junctions. This reduction improves conduction efficiency in thermally stressed conditions-such as sustained LED driver operation-and contributes to self-limiting thermal behavior when used within its derated current envelope.
TUAS6DH 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:
- 1.1 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 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
TUAS6DH FAQ
1.How can I place an order for TUAS6DH through Aetrix?
Please submit a Request for Quotation (RFQ) for TUAS6DH 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 TUAS6DH reliable?
The price and inventory of TUAS6DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUAS6DH is usually 5 days.
3.What payment methods are accepted for TUAS6DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUAS6DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUAS6DH?
TUAS6DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUAS6DH 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 TUAS6DH?
For technical support, including TUAS6DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUAS6DH requirements.
6.How does Aetrix verify that TUAS6DH is sourced from the original manufacturer or authorized distributors?
All TUAS6DH 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 TUAS6DH meets industry standards.
7.What is the process for return or replacement of TUAS6DH?
All TUAS6DH units undergo pre-shipment inspection (PSI). If there is an issue with TUAS6DH, 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 TUAS6DH part is unused and in its original packaging.
Return procedure for TUAS6DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TUAS6DH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
