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Diodes Incorporated UF2005-T
- Part No.:
- UF2005-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
UF2005-T.pdf
- Description:
- DIODE GEN PURP 600V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,518
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Product details
Overview
UF2005-T from Diodes Incorporated is a 2.0A ultra-fast rectifier diode in DO-15 package, rated for 600V peak repetitive reverse voltage and 1.7V forward voltage at 2.0A, with 50ns reverse recovery time and 5.0µA reverse leakage at 25°C. It serves as a primary-side AC/DC input rectifier in offline switch-mode power supplies for industrial and consumer electronics.
For engineers reviewing the UF2005-T datasheet, UF2005-T pinout, UF2005-T application, or UF2005-T equivalent, key selection criteria include its 600V blocking capability, 60A non-repetitive surge rating, thermal resistance of 50°C/W, and DO-15 through-hole mechanical compatibility in high-efficiency flyback and forward converter designs.
Technical Context
This device uses a diffused junction structure to achieve ultra-fast switching performance, minimizing reverse recovery losses in high-frequency rectification circuits operating up to several hundred kHz. Its low 5.0µA reverse leakage at 25°C and 100µA at 100°C supports stable operation across extended temperature ranges.
The 50ns reverse recovery time (measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A) and 50pF typical junction capacitance (at 1.0MHz, 4.0V reverse bias) enable efficient performance in fast-switching topologies where diode turn-off behavior critically impacts efficiency and EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum peak repetitive reverse voltage the diode blocks without breakdown in AC line rectification |
| IO @ TA=50°C | 2.0 A - Average forward current handling capacity under standard heatsinking conditions (9.5mm lead length) |
| VFM @ IF=2.0A | 1.7 V - Forward voltage drop determining conduction loss and thermal dissipation in continuous operation |
| trr | 50 ns - Reverse recovery time defining switching loss and potential ringing in high-frequency SMPS |
| IFSM | 60 A - Non-repetitive surge current rating for handling inrush or transient overloads (8.3ms half-sine) |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance used to calculate maximum junction temperature rise |
| IRM @ 25°C | 5.0 µA - Reverse leakage current affecting standby power and high-impedance circuit integrity |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), axial leaded, cathode indicated by band marking, tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary during positive half-cycle conduction |
| Cathode | Forward current exit point | Connected to output capacitor or DC bus; marked with visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 50ns trr enables use in 100–500kHz SMPS without excessive switching loss or voltage overshoot |
| 60A surge rating | Withstands cold-start inrush and lightning-induced transients in AC-input front-end stages |
| Low reverse leakage | 5.0µA at 25°C ensures minimal standby power loss and reliable hold-up in energy-efficient designs |
| DO-15 mechanical standardization | Direct replacement for legacy 1N400x and UF400x series in existing PCB footprints and assembly processes |
Applications
| AC/DC Adapter Input Rectification | Industrial SMPS Primary-Side Rectifier |
|---|---|
Use Scenario: 100–240VAC input stage of wall-mounted USB-C PD adapters delivering up to 65W. IC Role / Device Role / Timing Role: Ultra-fast rectifier converting AC line to pulsating DC prior to bulk capacitor filtering and PWM controller input. Use Value: 50ns trr reduces switching loss and EMI generation compared to standard recovery diodes, improving efficiency by ~0.8% at full load. | Use Scenario: 48V/20A industrial power supply with active PFC and LLC resonant secondary stage. IC Role / Device Role / Timing Role: Main bridge rectifier in voltage-doubler configuration feeding PFC boost stage. Use Value: 600V VRRM and 60A IFSM ensure robustness against 300VAC surges and line transients per IEC 61000-4-5 Level 3. |
| LED Driver Bulk Rectification | Automotive Auxiliary Power Supply |
Use Scenario: Off-line LED driver for street lighting operating in ambient temperatures up to +85°C. IC Role / Device Role / Timing Role: Input rectifier supplying DC bus to constant-current buck regulator driving high-power COB LEDs. Use Value: 100µA IRM at 100°C maintains low leakage-induced power loss and thermal stability in sealed outdoor enclosures. | Use Scenario: 12V auxiliary power module in commercial vehicle infotainment system (12–24V nominal, 40V load dump). IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated flyback converter powering microcontroller and CAN transceiver. Use Value: DO-15 package withstands vibration per ISO 16750-3; RoHS-compliant finish meets automotive change control requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | TO-220AC package, 2.0A/600V, 55ns trr, higher RθJA (35°C/W case-to-ambient but requires heatsink) | Suitable for higher-power designs requiring forced-air cooling or heatsink mounting | Select when board space allows TO-220 footprint and thermal management includes heatsinking |
| ON Semiconductor MUR260 | DO-41 package, same 2.0A/600V rating, 60ns trr, 10µA IRM at 25°C | Compatible with smaller PCB layouts but lower surge margin (50A IFSM vs. 60A) | Prefer for cost-sensitive consumer designs where 50A surge rating suffices and DO-41 footprint is fixed |
Compared with STTH2R06 and MUR260, UF2005-T offers superior surge robustness (60A), lowest leakage (5.0µA), and direct DO-15 drop-in compatibility with legacy 1N400x layouts-making it optimal for space-constrained, high-reliability industrial rectification where thermal budget is managed via lead-frame conduction.
Availability
UF2005-T is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial SMPS primary-side rectifiers, LED driver bulk rectification, and automotive auxiliary power supplies requiring stable component supply despite its obsolete status.
Supply support for UF2005-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The UF200x series belongs to Diodes' ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency AC/DC conversion in compact power supplies where fast recovery and low leakage are critical.
FAQ
Is UF2005-T still in production?
No-UF2005-T is officially marked obsolete per Diodes Incorporated's DS25007 Rev. 5-4 (May 2023). However, Aetrix Electronics maintains limited legacy stock and supports continuity sourcing for active production programs with documented BOM commitments and lifecycle transition planning.
What is the maximum operating temperature for UF2005-T?
The UF2005-T has an operating junction temperature range of –65°C to +150°C. At ambient temperatures above 50°C, derating applies: IO decreases linearly to zero at +150°C, per Figure 1 in the datasheet, assuming 9.5mm lead length and free-air convection.
Can UF2005-T replace UF4007 in existing designs?
Yes-UF2005-T shares identical DO-15 package, cathode band polarity, and pinout with UF4007, and both are rated for 1000V VRRM. However, UF2005-T is rated for 600V and exhibits lower VFM (1.7V vs. ~1.9V) and faster trr (50ns vs. 75ns), making it preferable for efficiency-critical 600V-class applications.
Does UF2005-T meet automotive qualification standards?
UF2005-T itself is not AEC-Q101 qualified. Diodes states that automotive-grade variants require specific change control-including AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing-and must be requested separately through authorized channels; standard UF2005-T is intended for industrial and commercial use.
UF2005-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
- Operating Temperature - Junction:
- -65°C ~ 150°C
UF2005-T FAQ
1.How can I place an order for UF2005-T through Aetrix?
Please submit a Request for Quotation (RFQ) for UF2005-T 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 UF2005-T reliable?
The price and inventory of UF2005-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF2005-T is usually 5 days.
3.What payment methods are accepted for UF2005-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF2005-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF2005-T?
UF2005-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF2005-T 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 UF2005-T?
For technical support, including UF2005-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF2005-T requirements.
6.How does Aetrix verify that UF2005-T is sourced from the original manufacturer or authorized distributors?
All UF2005-T 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 UF2005-T meets industry standards.
7.What is the process for return or replacement of UF2005-T?
All UF2005-T units undergo pre-shipment inspection (PSI). If there is an issue with UF2005-T, 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 UF2005-T part is unused and in its original packaging.
Return procedure for UF2005-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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