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Taiwan Semiconductor Corporation UG54GS
- Part No.:
- UG54GS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
UG54GS.pdf
- Description:
- 20NS, 5A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:3,350
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Product details
Overview
UG54GS from Taiwan Semiconductor is a 5A, 200V ultra-fast rectifier diode in DO-204AC (DO-15) package, featuring 20 ns reverse recovery time, 175°C maximum junction temperature, and AEC-Q101 qualification option (UG54GSHA0G). It serves as a freewheeling or output rectifier in high-frequency DC/DC converters.
For engineers reviewing the UG54GS datasheet, UG54GS pinout, UG54GS application, or UG54GS equivalent, key selection criteria include its 65A surge rating, 1.10 V max forward voltage at 5A/25°C, low 14°C/W junction-to-lead thermal resistance, and RoHS/halogen-free compliance for automotive and industrial power supplies.
Technical Context
The UG54GS is a single-die, silicon planar ultra-fast recovery rectifier optimized for switching-mode power supplies operating above 50 kHz. Its 20 ns trr and low Qrr support reduced switching losses, while the 175°C TJ rating enables operation in thermally constrained environments without derating.
Thermal performance is validated on a 10 mm × 10 mm copper pad PCB: RθJA = 60°C/W, RθJC = 16°C/W, and RθJL = 14°C/W. The device uses pure tin-plated leads compliant with J-STD-002 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage before breakdown; supports 140 V RMS input in AC/DC front-ends. |
| IF | 5 A - Continuous average forward current at TA = 75°C on standard PCB; defines steady-state conduction capability. |
| IFSM | 65 A - Non-repetitive surge current (8.3 ms half-sine); handles inrush and fault transients in SMPS. |
| trr | 20 ns - Reverse recovery time at IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A; enables >100 kHz switching with low EMI. |
| TJ max | +175°C - Maximum junction temperature; allows full-rated operation in under-hood automotive or sealed industrial enclosures. |
| RθJL | 14 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to heatsink via lead frame in compact layouts. |
| VF @ 5A/25°C | 1.10 V max - Forward voltage drop; determines conduction loss of ~5.5 W at full load, critical for efficiency optimization. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking. Weight: 0.400 g. UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to switch node or transformer secondary; must handle 5 A continuous and 65 A surge. |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; blocks 200 V reverse during off-state with <10 µA leakage at 25°C. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | UG54GSHA0G meets stress test requirements for automotive power modules including temperature cycling and HTRB. |
| Ultra-fast recovery (trr ≤ 20 ns) | Minimizes reverse recovery charge (Qrr), reducing switching losses and EMI in 100–500 kHz converters. |
| 175°C maximum junction temperature | Enables operation without thermal derating in space-constrained industrial motor drives and LED drivers. |
| Pure tin-plated leads | Ensures reliable solder wetting per J-STD-002 and eliminates tin whisker risk per JESD201 Class 2. |
| RoHS and halogen-free | Complies with IEC 61249-2-21; suitable for consumer electronics and EU automotive supply chains. |
Applications
| DC/DC Converter Output Rectification | Automotive On-Board Charger (OBC) Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated 300–400 V input DC/DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Ultra-fast rectifier handling 5 A continuous output current with minimal conduction and switching loss. Use Value: 20 ns trr and 1.10 V VF reduce total power loss by up to 15% vs. standard fast recovery diodes at 200 kHz. | Use Scenario: Freewheeling path across inductive windings in bidirectional OBC PFC and DC/DC stages. IC Role / Device Role / Timing Role: Clamp inductive kickback during MOSFET turn-off; withstands repeated 65 A surge events. Use Value: 175°C TJ rating and AEC-Q101 qualification ensure reliability over 15-year vehicle lifetime under thermal cycling. |
| Industrial Motor Drive Snubber Network | LED Driver Flyback Secondary Rectification |
Use Scenario: Snubber diode in IGBT gate drive or main inverter snubbers for HVAC and pump inverters. IC Role / Device Role / Timing Role: Fast clamping element absorbing turn-off energy; operates at 10–50 kHz switching frequencies. Use Value: Low Qrr and 14°C/W RθJL enable stable operation without external heatsinking in compact drive modules. | Use Scenario: Output rectifier in 20–100 W isolated flyback LED drivers for streetlight and commercial lighting. IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; handles 5 A peak current with low VF. Use Value: 1.00 V VF max at 5 A/150°C maintains efficiency >88% across ambient temperatures from –40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06 (STMicroelectronics) | 600 V VRRM, 5 A IF, 35 ns trr, TO-220AC package | Higher voltage rating but slower recovery; requires larger heatsink due to higher RθJA | Choose when 600 V blocking is required and board space allows TO-220 mounting. |
| ES5D (ON Semiconductor) | 200 V VRRM, 5 A IF, 35 ns trr, DO-204AC package, no AEC-Q101 option | Same footprint but 1.7× longer trr; not qualified for automotive use | Acceptable for cost-sensitive industrial supplies where AEC-Q101 and <25 ns trr are not mandatory. |
Compared with STTH5L06 and ES5D, the UG54GS delivers superior high-frequency efficiency via its 20 ns trr and lower thermal resistance, while offering automotive-grade reliability in the compact DO-204AC form factor-making it optimal for space- and performance-critical 200 V SMPS designs.
Availability
UG54GS is available at Aetrix Electronics and suitable for DC/DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, long-term lifecycle support, and automotive-qualified variants (UG54GSHA0G).
Supply support for UG54GS 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 industrial, automotive, and consumer markets since 1979.
The UG54GS belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive-grade and thermally demanding industrial systems.
FAQ
What is the maximum junction temperature rating for the UG54GS?
The UG54GS has a maximum junction temperature (TJ max) of +175°C, verified per absolute maximum ratings table. This allows uninterrupted operation at full 5 A current in ambient temperatures up to +85°C when mounted on a 10 mm × 10 mm Cu pad, making UG54GS suitable for under-hood automotive and enclosed industrial power modules.
Does the UG54GS have an AEC-Q101 qualified version?
Yes, the UG54GSHA0G variant is explicitly AEC-Q101 qualified, as noted in the ordering information and features list. The "H" suffix denotes qualification, and the device undergoes stress testing including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing-ensuring UG54GS meets automotive reliability requirements.
What is the reverse recovery time (trr) specification for the UG54GS?
The UG54GS has a maximum reverse recovery time (trr) of 20 ns, measured under IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A conditions. This value is confirmed in the Electrical Specifications table and enables efficient operation in switching power supplies operating above 100 kHz, distinguishing UG54GS from standard fast recovery diodes.
What packaging options are available for the UG54GS?
The UG54GS is offered in DO-204AC (DO-15) package with two packing formats: 3,500 units per tape-and-reel (UG54GS and UG54GSH) and 1,500 units per ammo box (UG54GS A0G and UG54GSHA0G). All variants share identical electrical and thermal specifications; only packaging and qualification differ.
How does the thermal resistance of the UG54GS compare to similar DO-204AC rectifiers?
The UG54GS exhibits RθJL = 14°C/W and RθJA = 60°C/W on a 10 mm × 10 mm Cu pad-among the lowest in its class. This outperforms typical DO-204AC rectifiers (RθJA ≈ 70–85°C/W), enabling higher power density and reduced need for auxiliary heatsinking in compact UG54GS-based designs.
UG54GS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 20 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 45pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 175°C
UG54GS FAQ
1.How can I place an order for UG54GS through Aetrix?
Please submit a Request for Quotation (RFQ) for UG54GS 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 UG54GS reliable?
The price and inventory of UG54GS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UG54GS is usually 5 days.
3.What payment methods are accepted for UG54GS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UG54GS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UG54GS?
UG54GS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UG54GS 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 UG54GS?
For technical support, including UG54GS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UG54GS requirements.
6.How does Aetrix verify that UG54GS is sourced from the original manufacturer or authorized distributors?
All UG54GS 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 UG54GS meets industry standards.
7.What is the process for return or replacement of UG54GS?
All UG54GS units undergo pre-shipment inspection (PSI). If there is an issue with UG54GS, 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 UG54GS part is unused and in its original packaging.
Return procedure for UG54GS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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