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Taiwan Semiconductor Corporation TSD3GH
- Part No.:
- TSD3GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TSD3GH.pdf
- Description:
- DIODE GEN PURP 400V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,675
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Product details
Overview
TSD3GH from Taiwan Semiconductor is a 3A, 400V glass-passivated standard recovery rectifier diode with AEC-Q101 qualification, 100A surge capability, and ≥8kV HBM ESD rating; it serves as a primary output rectifier in automotive DC-DC converters and snubber circuits.
For engineers reviewing the TSD3GH datasheet, TSD3GH pinout, TSD3GH application, or TSD3GH equivalent, key selection criteria include its DO-214AB (SMC) package thermal resistance (RθJA = 59°C/W), low forward voltage (VF = 0.89V @ 3A/25°C), high junction temperature rating (TJ = –55 to +175°C), and AEC-Q101 compliance for under-hood use.
Technical Context
The TSD3GH is a single-die, unidirectional standard recovery rectifier optimized for automotive power conversion where moderate switching speed and robust thermal performance are required. Its glass-passivated junction ensures stable reverse leakage (<1µA @ 25°C) and long-term reliability under thermal cycling.
Designed for surface-mount assembly on 16mm × 16mm Cu pads, the device delivers 3A average forward current with derating above 120°C lead temperature and supports peak surge currents up to 100A (8.3ms half-sine), making it suitable for transient-heavy automotive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 24V/48V automotive bus applications. |
| IF | 3 A - Continuous average forward current at TL = 120°C; enables compact layout without forced cooling in space-constrained modules. |
| IFSM | 100 A - Non-repetitive surge current handling; withstands load dump transients per ISO 7637-2 without failure. |
| TJ max | +175°C - Maximum junction temperature; supports operation near engine compartments with minimal thermal margin loss. |
| RθJA | 59°C/W - Junction-to-ambient thermal resistance on standard PCB; determines required copper area for thermal management. |
| VF @ 3A/25°C | 0.89 V (typ) - Low conduction loss reduces power dissipation by ~2.7W vs. higher-VF alternatives at full load. |
| ESD Rating | ≥8 kV HBM (Class H3B) - Meets AEC-Q101-001 for robustness against handling and board-level ESD events. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-indicated by band, matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of circuit (e.g., ground return or switch node); requires adequate copper pour for heat spreading. |
| Cathode | Current exit point during forward conduction; polarity marker via band | Connected to higher-potential rail (e.g., output of buck converter); band orientation must match PCB silkscreen for automated placement verification. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing per JESD47. |
| Glass-passivated junction | Eliminates risk of junction corrosion and parameter drift in humid or chemically aggressive under-hood environments. |
| Low VF at high temperature | VF = 0.76V (typ) @ 3A/125°C - Maintains efficiency in hot ambient conditions where competing diodes degrade significantly. |
| Moisture sensitivity level 1 | No baking required prior to reflow; compatible with standard SMT processes without floor-life constraints. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated automotive supply chains. |
Applications
| Automotive DC-DC Converters | Car Lighting Systems |
|---|---|
Use Scenario: Step-down conversion from 48V battery to 12V auxiliary rail in modern vehicle architectures. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck topology. Use Value: 3A continuous rating and 100A surge tolerance handle intermittent high-current LED headlamp loads without derating. | Use Scenario: Power supply for adaptive front-lighting systems (AFS) and matrix LED modules. IC Role / Device Role / Timing Role: Freewheeling diode in boost LED drivers and snubber network in PWM-controlled ballasts. Use Value: 400V VRRM provides margin against inductive kickback from solenoid-based beam-steering actuators. |
| Snubber Circuits | Industrial Power Supplies |
Use Scenario: RC snubber across MOSFETs/IGBTs in motor control inverters and HVAC compressors. IC Role / Device Role / Timing Role: Transient energy clamp and voltage spike suppression during switching transitions. Use Value: Fast recovery characteristics (not ultrafast but sufficient for <100kHz switching) and 175°C TJ ensure stability under repeated surge stress. | Use Scenario: Input rectification and hold-up capacitor charging in industrial SMPS units. IC Role / Device Role / Timing Role: General-purpose rectifier in bridge or single-phase configurations. Use Value: DO-214AB package enables automated placement and reflow compatibility while delivering 3A/400V performance at lower cost than TO-220 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EYH04-M3 | Same DO-214AB package, 3A/400V, but rated only to +150°C TJ; no AEC-Q101 qualification. | Suitable for commercial/industrial power supplies, not automotive under-hood deployment. | Select when AEC-Q101 is not required and cost is prioritized over extended temperature margin. |
| ON Semiconductor MUR340G | Ultrafast recovery (trr = 50ns), same VRRM/IF, but higher VF (1.25V @ 3A) and no specified ESD rating. | Better suited for high-frequency PFC stages; less efficient in low-frequency DC-DC outputs. | Choose only if faster recovery is needed and thermal budget allows higher conduction loss. |
Compared with VS-3EYH04-M3 and MUR340G, the TSD3GH uniquely combines AEC-Q101 qualification, 175°C operation, and ≥8kV ESD immunity-making it the only option qualified for demanding automotive power conversion where reliability and thermal resilience are non-negotiable.
Availability
TSD3GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, car lighting systems, and snubber circuits requiring stable component supply across production lifecycles.
Supply support for TSD3GH 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 devices, protection components, and automotive-qualified products.
The TSD3GH belongs to TSC's AEC-Q101-qualified standard rectifier family, engineered specifically for automotive power conversion systems requiring high surge tolerance, extended temperature operation, and process-consistent ESD robustness.
FAQ
What is the maximum junction temperature rating for the TSD3GH?
The TSD3GH has a maximum junction temperature (TJ) rating of +175°C, verified per AEC-Q101 stress testing. This enables reliable operation in high-ambient environments such as engine control units and under-hood DC-DC modules. The TSD3GH maintains electrical integrity up to this limit when thermal design adheres to the specified RθJA = 59°C/W on a 16mm × 16mm Cu pad.
Is the TSD3GH pin-compatible with other DO-214AB rectifiers like MUR340G?
Yes, the TSD3GH uses the standard DO-214AB (SMC) package with anode and cathode terminals in identical physical locations to MUR340G and VS-3EYH04-M3. However, pin compatibility does not imply functional equivalence-the TSD3GH offers AEC-Q101 qualification and higher TJ rating, while MUR340G provides faster recovery but higher VF.
Does the TSD3GH meet automotive qualification standards?
Yes, the TSD3GH is fully AEC-Q101 qualified per revision D, including tests for temperature cycling, high-temperature operating life, and human-body-model ESD (≥8kV). It also meets JESD201 Class 2 whisker resistance and IEC 61000-4-2 Level 4 contact discharge (≥8kV), confirming suitability for automotive production.
What is the forward voltage drop of the TSD3GH at 3A and 125°C?
The TSD3GH exhibits a typical forward voltage (VF) of 0.76V at 3A and 125°C, with a maximum of 1.00V under those conditions. This low, temperature-stable VF minimizes conduction losses in high-temperature automotive applications, directly improving system efficiency compared to diodes with positive VF temperature coefficients.
How is the TSD3GH marked on the device body?
The TSD3GH is laser-marked with "TSD3G" on the cathode end of the DO-214AB package, followed by green compound coding (G), date code (YW), and factory code (F). The cathode band is clearly visible adjacent to the marking, ensuring unambiguous polarity identification during automated optical inspection and placement.
TSD3GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Cut Tape (CT)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 45pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
TSD3GH FAQ
1.How can I place an order for TSD3GH through Aetrix?
Please submit a Request for Quotation (RFQ) for TSD3GH 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 TSD3GH reliable?
The price and inventory of TSD3GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSD3GH is usually 5 days.
3.What payment methods are accepted for TSD3GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSD3GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSD3GH?
TSD3GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSD3GH 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 TSD3GH?
For technical support, including TSD3GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSD3GH requirements.
6.How does Aetrix verify that TSD3GH is sourced from the original manufacturer or authorized distributors?
All TSD3GH 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 TSD3GH meets industry standards.
7.What is the process for return or replacement of TSD3GH?
All TSD3GH units undergo pre-shipment inspection (PSI). If there is an issue with TSD3GH, 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 TSD3GH part is unused and in its original packaging.
Return procedure for TSD3GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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