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Taiwan Semiconductor Corporation UG54GSH
- Part No.:
- UG54GSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
UG54GSH.pdf
- Description:
- 20NS, 5A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
UG54GSH from Taiwan Semiconductor is an AEC-Q101-qualified ultra-fast recovery rectifier diode in DO-204AC (DO-15) package, rated for 5 A average forward current, 200 V repetitive peak reverse voltage, and 65 A surge current, used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the UG54GSH datasheet, UG54GSH pinout, UG54GSH application, or UG54GSH equivalent, key selection criteria include its 20 ns max reverse recovery time, 175°C maximum junction temperature, AEC-Q101 qualification status, and thermal resistance values (RθJL = 14°C/W, RθJA = 60°C/W).
Technical Context
The UG54GSH is a single-die, planar passivated silicon rectifier optimized for high-frequency switching applications. Its ultra-fast recovery (trr ≤ 20 ns) minimizes switching losses in SMPS topologies, while the 175°C TJ rating supports operation in under-hood automotive environments.
Thermal performance is validated on a 10 mm × 10 mm copper pad PCB; RθJL = 14°C/W enables efficient heat transfer to the PCB lead frame, and the pure tin-plated leads meet J-STD-002 solderability with JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 5 A - Sustains continuous conduction in high-current DC-DC output stages without derating at 100°C ambient. |
| VRRM | 200 V - Blocks transient spikes in 12 V/24 V automotive systems and industrial 48 V bus converters. |
| IFSM (8.3 ms) | 65 A - Withstands inrush and fault currents during startup or short-circuit events in power supplies. |
| trr (max) | 20 ns - Enables operation up to ~500 kHz switching frequency with minimal reverse recovery loss. |
| TJ (max) | 175°C - Certified for under-hood placement in AEC-Q101-compliant automotive modules. |
| RθJL | 14 °C/W - Delivers predictable thermal path to PCB copper, supporting compact layout without forced air cooling. |
| VF @ 5A, 25°C | 1.10 V (max) - Limits conduction loss to ≤5.5 W per device at full load, reducing heatsink requirements. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band polarity marking. Weight: 0.400 g. RoHS and halogen-free compliant (IEC 61249-2-21).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires low-inductance trace routing. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return; critical for EMI control due to fast dv/dt during recovery. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control units and ADAS power rails. |
| Ultra-fast trr ≤ 20 ns | Reduces switching loss and EMI generation in high-frequency converters (>200 kHz). |
| 175°C TJ max rating | Enables direct mounting near hot components (e.g., MOSFETs) without thermal throttling. |
| Pure tin-plated leads | Ensures reliable solder joint formation and long-term intermetallic stability per J-STD-002. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability, long-life automotive applications. |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V subsystem rail in EV/HEV architectures. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck topology. Use Value: 20 ns trr and 175°C rating ensure stable regulation under wide ambient temperature swings and high ripple current stress. | Use Scenario: Bidirectional energy transfer in solar microinverters and UPS systems. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs or SiC MOSFETs in H-bridge legs. Use Value: 65 A IFSM withstands grid-synchronization surges; low VF reduces conduction loss during reactive power handling. |
| Server PSU Secondary Side | Motor Drive Freewheeling |
Use Scenario: High-efficiency 48 V–12 V intermediate bus conversion in AI server racks. IC Role / Device Role / Timing Role: Secondary-side rectifier in LLC resonant converter output stage. Use Value: DO-15 package fits dense layouts; 14°C/W RθJL allows thermal coupling to copper pour without discrete heatsinks. | Use Scenario: Inductive load commutation in BLDC motor gate-drive power stages. IC Role / Device Role / Timing Role: Clamp diode across motor phase windings to suppress back-EMF spikes. Use Value: Fast recovery prevents cross-conduction in half-bridge drivers; 200 V VRRM covers 24–48 V motor bus transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06S | 600 V VRRM, 5 A IF, trr = 35 ns, TO-220AC package | Higher voltage rating but slower recovery; larger footprint and higher RθJA | Preferred where 600 V isolation is required; not suitable for space-constrained 200 V designs. |
| VS-5EY20U-M3/45 | 200 V VRRM, 5 A IF, trr = 25 ns, DO-15 package, no AEC-Q101 | Same package and voltage, but lacks automotive qualification and has 5 ns slower recovery | Acceptable for industrial non-automotive use; UG54GSH preferred where AEC-Q101 compliance is mandatory. |
Compared with STTH5L06S and VS-5EY20U-M3/45, the UG54GSH uniquely combines AEC-Q101 qualification, 20 ns trr, and DO-15 packaging-enabling drop-in deployment in automotive power modules where reliability, speed, and form factor are jointly constrained.
Availability
UG54GSH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and motor drive freewheeling applications requiring stable component supply and long-term lifecycle support.
Supply support for UG54GSH 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and computing markets since 1979.
The UG54GSH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-reliability, high-frequency power conversion in harsh-environment automotive and industrial systems.
FAQ
What does the "H" suffix in UG54GSH signify?
The "H" in UG54GSH explicitly denotes AEC-Q101 qualification per the manufacturer's ordering information. This distinguishes it from the standard UG54GS variant and confirms that the UG54GSH has undergone stress testing for automotive-grade reliability-including temperature cycling, humidity bias, and mechanical shock. The UG54GSH is fully traceable to AEC-Q101 test reports issued by Taiwan Semiconductor.
Is UG54GSH pin-compatible with UG54GS?
Yes - UG54GSH and UG54GS share identical DO-204AC (DO-15) packaging, anode/cathode pinout, and mechanical dimensions. The only functional difference is AEC-Q101 qualification; all electrical parameters (VRRM, IF, trr, VF) and thermal specs (RθJL, RθJA) are identical between UG54GSH and UG54GS per the official datasheet revision C2105.
What is the maximum recommended PCB copper pad size for UG54GSH thermal performance?
Taiwan Semiconductor specifies thermal characterization using a 10 mm × 10 mm copper pad on FR-4 PCB per JEDEC standards. While larger pads improve heat dissipation, the UG54GSH's RθJL = 14°C/W is validated on this 100 mm² pad; exceeding it yields diminishing returns without redesigning the internal leadframe thermal path. For optimal results, maintain ≥1 mm clearance from adjacent components.
Does UG54GSH support reflow soldering per J-STD-020?
Yes - UG54GSH's pure tin-plated leads and UL 94V-0 molding compound are compatible with standard lead-free reflow profiles (peak 260°C, 20–40 sec). The device meets J-STD-002 solderability requirements, and its 175°C TJ rating ensures robustness against thermal cycling stress during assembly and field operation.
How does UG54GSH's 20 ns trr compare to typical fast recovery diodes in DO-15 packages?
At ≤20 ns, UG54GSH's reverse recovery time is among the fastest for 5 A/200 V DO-15 rectifiers - outperforming legacy fast recovery types (typically 35–75 ns) and matching high-end ultra-fast variants. This enables higher switching frequencies and lower EMI in compact power supplies, directly verified in Taiwan Semiconductor's Fig.4 reverse recovery waveform data at IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A.
UG54GSH 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
UG54GSH FAQ
1.How can I place an order for UG54GSH through Aetrix?
Please submit a Request for Quotation (RFQ) for UG54GSH 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 UG54GSH reliable?
The price and inventory of UG54GSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UG54GSH is usually 5 days.
3.What payment methods are accepted for UG54GSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UG54GSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UG54GSH?
UG54GSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UG54GSH 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 UG54GSH?
For technical support, including UG54GSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UG54GSH requirements.
6.How does Aetrix verify that UG54GSH is sourced from the original manufacturer or authorized distributors?
All UG54GSH 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 UG54GSH meets industry standards.
7.What is the process for return or replacement of UG54GSH?
All UG54GSH units undergo pre-shipment inspection (PSI). If there is an issue with UG54GSH, 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 UG54GSH part is unused and in its original packaging.
Return procedure for UG54GSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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