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Taiwan Semiconductor Corporation UF4003HR0G
- Part No.:
- UF4003HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
UF4003HR0G.pdf
- Description:
- DIODE GEN PURP 200V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,184
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Product details
Overview
UF4003HR0G from Taiwan Semiconductor is a 1A, 200V ultrafast recovery rectifier diode in DO-204AL (DO-41) package, featuring 50 ns reverse recovery time, 1.0 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability - used in freewheeling paths of DC-DC converters.
For engineers reviewing the UF4003HR0G datasheet, UF4003HR0G pinout, UF4003HR0G application, or UF4003HR0G equivalent, key selection criteria include repetitive peak reverse voltage (200 V), junction-to-lead thermal resistance (15 °C/W), surge current rating (30 A), glass-passivated junction, and RoHS/halogen-free compliance.
Technical Context
This single-die, through-hole rectifier employs a glass-passivated PN junction to ensure stable high-temperature switching up to 150 °C junction temperature and low leakage (<5 µA at 25 °C, <150 µA at 125 °C). Its ultrafast trr ≤50 ns enables efficient operation in high-frequency switching topologies.
The device supports 1 A average forward current with derating above 75 °C ambient and delivers consistent performance under 8.3 ms half-sine surge conditions (IFSM = 30 A), making it suitable for transient-heavy power conversion stages where thermal robustness and fast recovery are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage the diode blocks without breakdown |
| IF | 1 A - continuous average forward current rating at TA ≤75 °C |
| trr | ≤50 ns - ultrafast recovery time minimizes switching losses in SMPS operating >50 kHz |
| VF @ 1 A | 1.0 V - forward voltage drop determines conduction loss and thermal load at rated current |
| RθJL | 15 °C/W - low junction-to-lead thermal resistance enables effective heat transfer to PCB copper or heatsink |
| IFSM | 30 A - non-repetitive surge current capability handles inrush and fault transients |
| TJ max | 150 °C - maximum junction temperature defines safe operating envelope under thermal stress |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, glass-passivated, cathode indicated by band. Weight: 0.330 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node or ground return) in freewheeling path |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; connects to higher-potential rail (e.g., output capacitor positive or inductor output) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power supplies |
| Glass passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling and humidity stress |
| Ultrafast 50 ns recovery | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency converters |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental regulations for industrial and automotive manufacturing |
| Pure tin-plated leads | Ensures solderability per J-STD-002 and eliminates whisker risk per JESD 201 Class 2 |
Applications
| DC-DC Buck Converter | Automotive LED Driver |
|---|---|
Use Scenario: Freewheeling diode in synchronous or non-synchronous buck regulator supplying 12 V to infotainment systems. IC Role / Device Role: Provides low-loss current path during high-side switch off-time, preventing inductive kickback. Use Value: 1.0 V VF and 50 ns trr reduce conduction + switching losses, improving efficiency by ~1.2% over standard FR103 at 250 kHz. | Use Scenario: Output rectifier in constant-current LED driver for exterior lighting in passenger vehicles. IC Role / Device Role: Rectifies switched inductor current and clamps reverse voltage during PWM dimming transitions. Use Value: AEC-Q101 qualification and 150 °C TJ max support operation near hot engine compartments without derating. |
| Industrial SMPS Auxiliary Supply | UPS Inverter Stage |
Use Scenario: Secondary-side rectifier in 24 V auxiliary supply powering control logic and gate drivers. IC Role / Device Role: Converts high-frequency transformer output to regulated DC, handling 1 A continuous load. Use Value: 30 A IFSM withstands startup surges and short-circuit foldback events without failure. | Use Scenario: Freewheeling diode across IGBTs in three-phase UPS inverter bridge legs. IC Role / Device Role: Absorbs reactive energy during IGBT turn-off and prevents voltage overshoot. Use Value: 200 V VRRM and 15 °C/W RθJL enable reliable operation at elevated case temperatures in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02U | Same 1 A / 200 V rating; trr = 30 ns (faster), VF = 1.15 V (higher), DO-41 package | Lower trr suits >1 MHz designs; higher VF increases conduction loss at high duty cycles | Prefer STTH1R02U when minimizing Qrr dominates over VF in high-frequency SMPS |
| ON Semi MUR120 | 1 A / 200 V; trr = 35 ns; VF = 0.95 V; same DO-41; not AEC-Q101 qualified | Lacks automotive qualification; better VF but slightly slower than UF4003HR0G | Select MUR120 for cost-sensitive industrial supplies where AEC-Q101 is unnecessary |
Compared with STTH1R02U and MUR120, UF4003HR0G uniquely balances 50 ns trr, 1.0 V VF, and AEC-Q101 qualification - making it optimal for automotive and industrial converters requiring verified reliability without sacrificing switching efficiency.
Availability
UF4003HR0G is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED drivers, and industrial SMPS auxiliary supplies requiring stable component supply and long-term lifecycle support.
Supply support for UF4003HR0G 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 automotive, industrial, and consumer markets since 1979.
The UF400x family targets high-efficiency power conversion in space-constrained, thermally demanding environments - designed specifically for ultrafast rectification in switching-mode power supplies and automotive subsystems.
FAQ
What is the maximum junction temperature rating for UF4003HR0G?
The UF4003HR0G has a maximum junction temperature (TJ max) of 150 °C, validated across its full operating range. This rating allows sustained operation in high-ambient environments such as engine bays or enclosed industrial power supplies. Derating begins above 75 °C ambient, and thermal design must account for RθJL = 15 °C/W to maintain safe TJ. The UF4003HR0G's glass-passivated junction ensures stability at these elevated temperatures.
Is UF4003HR0G pin-compatible with other UF400x series diodes?
Yes - all UF400x devices, including UF4003HR0G, share identical DO-204AL (DO-41) package dimensions, lead spacing, and axial pinout (anode/cathode). Mechanical interchangeability is guaranteed; however, electrical parameters differ - notably VRRM (200 V for UF4003HR0G vs. 50–1000 V for others) and trr (50 ns for UF4001–UF4004). Always verify voltage and recovery requirements before substitution.
Does UF4003HR0G meet automotive qualification standards?
Yes - the "H" suffix in UF4003HR0G explicitly denotes AEC-Q101 qualification per the manufacturer's ordering code table. This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life. The device is approved for use in automotive power modules, body control units, and ADAS subsystems where reliability under vibration and thermal extremes is mandatory.
What is the reverse recovery time (trr) specification for UF4003HR0G?
The UF4003HR0G 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 ultrafast value is confirmed in the Electrical Specifications table for UF4001–UF4004 variants. The low trr reduces switching losses and EMI generation in high-frequency converters, distinguishing UF4003HR0G from standard recovery rectifiers like 1N400x series.
How does the forward voltage (VF) of UF4003HR0G compare to similar ultrafast diodes?
At 1 A and 25 °C, UF4003HR0G exhibits VF = 1.0 V - lower than STTH1R02U (1.15 V) but slightly higher than MUR120 (0.95 V). This balance delivers low conduction loss while maintaining robust switching performance. The VF remains stable across temperature due to the glass-passivated junction, supporting predictable thermal modeling in designs using UF4003HR0G as the primary freewheeling element.
UF4003HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 17pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
UF4003HR0G FAQ
1.How can I place an order for UF4003HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for UF4003HR0G 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 UF4003HR0G reliable?
The price and inventory of UF4003HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF4003HR0G is usually 5 days.
3.What payment methods are accepted for UF4003HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF4003HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF4003HR0G?
UF4003HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF4003HR0G 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 UF4003HR0G?
For technical support, including UF4003HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF4003HR0G requirements.
6.How does Aetrix verify that UF4003HR0G is sourced from the original manufacturer or authorized distributors?
All UF4003HR0G 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 UF4003HR0G meets industry standards.
7.What is the process for return or replacement of UF4003HR0G?
All UF4003HR0G units undergo pre-shipment inspection (PSI). If there is an issue with UF4003HR0G, 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 UF4003HR0G part is unused and in its original packaging.
Return procedure for UF4003HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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