My Inquiry
My Account
Taiwan Semiconductor Corporation UF4001HR0G
- Part No.:
- UF4001HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
UF4001HR0G.pdf
- Description:
- DIODE GEN PURP 50V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,878
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UF4001HR0G from Taiwan Semiconductor is a 1A, 50V 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 in freewheeling and DC-DC converter applications.
For engineers reviewing the UF4001HR0G datasheet, UF4001HR0G pinout, UF4001HR0G application, or UF4001HR0G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), surge current rating (30 A), junction-to-lead thermal resistance (15 °C/W), and RoHS/halogen-free compliance for high-efficiency power conversion designs.
Technical Context
This single-die, glass-passivated silicon rectifier operates with a maximum junction temperature of 150 °C and supports continuous forward current up to 1 A. Its ultrafast recovery (trr ≤ 50 ns) minimizes switching losses in high-frequency SMPS topologies.
The device uses pure tin-plated leads compliant with J-STD-002 solderability and meets JESD 201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-41 body, and its UL 94V-0 molding compound ensures flame-retardant mechanical integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling paths |
| IF | 1 A - Continuous average forward current; sets thermal design baseline for PCB trace width and heatsinking |
| trr | ≤ 50 ns - Ultrafast reverse recovery time; reduces switching loss and EMI in >100 kHz converters |
| VF @ 1 A | 1.0 V - Forward voltage drop at rated current; directly impacts conduction loss and efficiency at full load |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to copper pour or heatsink tab |
| IR @ 25°C | ≤ 5 µA - Reverse leakage current; critical for low-power standby and high-impedance bias networks |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode indicated by a painted band. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or inductor return; blocks reverse voltage up to 50 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control and ADAS power supplies |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in humid or thermally cycled environments |
| Ultrafast trr ≤ 50 ns | Enables operation in high-frequency DC-DC converters without excessive switching loss or ringing |
| RoHS and halogen-free | Complies with IEC 61249-2-21; supports green manufacturing and end-of-life recycling requirements |
Applications
| Automotive DC-DC Converters | Industrial SMPS Freewheeling |
|---|---|
Use Scenario: Step-down voltage regulation in 12 V/48 V dual-battery automotive systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or non-synchronous buck converters. Use Value: 50 ns trr and 1.0 V VF minimize conduction and switching losses, improving efficiency above 92% at 500 kHz. | Use Scenario: Energy recirculation in industrial motor drive power stages. IC Role / Device Role / Timing Role: Clamp and freewheel path for inductive loads during PWM off-time. Use Value: 30 A IFSM withstands transient surges; 150 °C TJ max supports operation in sealed enclosures. |
| Consumer AC-DC Adapters | Telecom Power Rectification |
Use Scenario: Output rectification in compact wall adapters for USB-C PD and laptop chargers. IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback topology. Use Value: Low VF reduces heat generation in space-constrained plastic housings; DO-41 allows manual or auto-insertion. | Use Scenario: Input bridge rectification in telecom shelf power modules. IC Role / Device Role / Timing Role: Discrete rectifier in multi-kW front-end AC-DC conversion. Use Value: UL 94V-0 molding and 15 °C/W RθJL support high-density, convection-cooled board layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | 600 V VRRM, 1.15 V VF @ 1 A, trr = 45 ns, TO-220AC package | Higher voltage rating but larger footprint; requires heatsink for >0.5 A continuous | Prefer when system needs ≥600 V blocking or higher surge margin; not drop-in due to package and pinout |
| ON Semi MUR105 | 50 V VRRM, 1.05 V VF @ 1 A, trr = 50 ns, DO-41 package, no AEC-Q101 | Same package and voltage rating; lacks automotive qualification and halogen-free certification | Select when AEC-Q101 and RoHS/halogen-free are not required; identical board fit and electrical interface |
Compared with STTH1R06U and MUR105, UF4001HR0G uniquely combines AEC-Q101 qualification, DO-41 form factor, 50 V rating, and halogen-free construction-making it optimal for cost-sensitive, space-constrained automotive and industrial freewheeling where reliability and regulatory compliance are mandatory.
Availability
UF4001HR0G is available at Aetrix Electronics and suitable for automotive power supplies, industrial DC-DC converters, and consumer adapter designs requiring stable component supply, long-term lifecycle support, and consistent AEC-Q101-compliant performance.
Supply support for UF4001HR0G 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 UF400x family is engineered for high-efficiency, high-reliability rectification in switching power supplies-specifically targeting applications demanding ultrafast recovery, thermal robustness, and automotive-grade qualification.
FAQ
What is the maximum junction temperature rating for UF4001HR0G?
The UF4001HR0G has a maximum junction temperature (TJ) rating of +150 °C, enabling reliable operation in high-ambient environments such as under-hood automotive electronics or enclosed industrial power supplies. This rating is validated per AEC-Q101 stress testing and must be maintained via proper thermal design using its 15 °C/W junction-to-lead resistance. Derating curves in the UF4001HR0G datasheet define allowable current vs. ambient temperature.
Is UF4001HR0G pin-compatible with standard DO-41 rectifiers like 1N4001?
Yes, UF4001HR0G uses the DO-204AL (DO-41) package with identical mechanical dimensions and axial lead configuration as 1N4001, allowing direct PCB footprint reuse. However, UF4001HR0G offers ultrafast recovery (50 ns vs. ~30 µs) and lower VF (1.0 V vs. ~1.1 V), making it unsuitable as a drop-in replacement in line-frequency applications where slow recovery is acceptable-but ideal for high-frequency switching circuits where 1N4001 would overheat.
Does UF4001HR0G meet automotive qualification standards?
Yes, UF4001HR0G is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS power supplies. The "H" suffix in UF4001HR0G explicitly denotes AEC-Q101 compliance, and the device undergoes stress testing for temperature cycling, humidity, and mechanical shock per the standard. This qualification is documented in Taiwan Semiconductor's official P2104 datasheet revision.
What is the reverse recovery time (trr) specification for UF4001HR0G?
The UF4001HR0G has a maximum reverse recovery time (trr) of 50 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultrafast value is confirmed in the Electrical Specifications table of the official datasheet and is critical for minimizing switching losses and EMI in DC-DC converters operating above 100 kHz. Trr remains stable across -55 °C to +125 °C junction temperature.
How does the halogen-free status of UF4001HR0G impact compliance?
UF4001HR0G complies with IEC 61249-2-21 for halogen-free printed wiring board materials, meaning its molding compound contains <900 ppm bromine and <900 ppm chlorine, with total halogens <1500 ppm. This supports RoHS 2 compliance and facilitates environmentally responsible end-of-life recycling. The "G" suffix in UF4001HR0G confirms green compound usage, verified in Taiwan Semiconductor's material declarations.
UF4001HR0G 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):
- 50 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 @ 50 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
UF4001HR0G FAQ
1.How can I place an order for UF4001HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for UF4001HR0G 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 UF4001HR0G reliable?
The price and inventory of UF4001HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF4001HR0G is usually 5 days.
3.What payment methods are accepted for UF4001HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF4001HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF4001HR0G?
UF4001HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF4001HR0G 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 UF4001HR0G?
For technical support, including UF4001HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF4001HR0G requirements.
6.How does Aetrix verify that UF4001HR0G is sourced from the original manufacturer or authorized distributors?
All UF4001HR0G 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 UF4001HR0G meets industry standards.
7.What is the process for return or replacement of UF4001HR0G?
All UF4001HR0G units undergo pre-shipment inspection (PSI). If there is an issue with UF4001HR0G, 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 UF4001HR0G part is unused and in its original packaging.
Return procedure for UF4001HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UF4001HR0G 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…
