Diodes Incorporated UF3005-T
- Part No.:
- UF3005-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
UF3005-T.pdf
- Description:
- DIODE GEN PURP 600V 3A DO201AD
- Quantity:
- Payment:

- Shipping:

Inventory:7,226
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Product details
Overview
UF3005-T from Diodes Incorporated is a 3.0A ultra-fast rectifier diode in DO-201AD package, rated for 600V peak repetitive reverse voltage and 1.7V forward voltage at 3.0A, with 50ns reverse recovery time and 5.0µA reverse leakage at 25°C - used in high-frequency AC/DC adapters, switch-mode power supplies, and DC-DC converters.
For engineers reviewing the UF3005-T datasheet, UF3005-T pinout, UF3005-T application, or UF3005-T equivalent, key selection criteria include VRRM=600V, trr=50ns, IFSM=150A, thermal resistance RθJA=35°C/W, and DO-201AD mechanical compatibility in compact power conversion designs.
Technical Context
This ultra-fast rectifier employs a diffused junction structure to achieve low reverse recovery charge and minimal switching losses in high-frequency operation. Its 50ns trr and 75pF typical capacitance support efficient performance in 50–500kHz SMPS topologies.
The device operates across –65°C to +150°C, with 3.0A average forward current derated above 55°C ambient and validated surge capability of 150A (8.3ms half-sine). Cathode band polarity and tin-plated leads ensure reliable soldering per MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum peak reverse voltage before breakdown; defines safe operating limit in bridge or flyback output stages. |
| IF(AV) | 3.0 A @ TA = 55°C - Continuous DC output current capacity under defined thermal conditions; requires heatsinking above ambient. |
| VF | 1.7 V @ IF = 3.0A - Forward conduction loss impacting efficiency; contributes ~5.1W dissipation at full load. |
| trr | 50 ns - Reverse recovery time determining switching loss and EMI generation in high-frequency rectification. |
| IRM | 5.0 µA @ 25°C - Low leakage ensures minimal standby power loss in offline power supplies. |
| RθJA | 35 °C/W - Junction-to-ambient thermal resistance; guides PCB copper area and airflow requirements for thermal management. |
Pinout & Package
Package: DO-201AD molded plastic case (UL 94V-0), 1.1g weight, cathode band marking, tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or transformer secondary; must withstand peak inverse voltage during off-state. |
| Cathode | Forward current exit terminal | Marked with band; ties to output capacitor or load; carries full rectified DC current and ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 50ns trr enables >200kHz operation with reduced switching loss vs. standard rectifiers. |
| High surge rating | 150A non-repetitive peak surge current supports inrush and transient overload without failure. |
| Low reverse leakage | 5.0µA @ 25°C minimizes standby power loss in energy-efficient power adapters. |
| RoHS-compliant finish | Lead-free, halogen-free construction meets EU Directive 2015/863/EU and industrial environmental requirements. |
Applications
| AC/DC Adapters | Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12–24V, 30–60W wall-mount adapters for consumer electronics and IoT gateways. IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback converter. Use Value: 50ns trr reduces switching loss and improves efficiency by ≥1.2% over UF3004 at 100kHz. |
Use Scenario: 48V telecom power modules with active clamp forward topology. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode handling 3A continuous current at 250kHz. Use Value: 600V VRRM provides 2× safety margin against reflected voltage spikes in clamp circuits. |
| DC-DC Converters | Industrial Motor Drives |
Use Scenario: Isolated 5V/3.3V auxiliary rails in server PSUs and FPGA power systems. IC Role / Device Role / Timing Role: Synchronous rectifier replacement where cost-sensitive, low-noise operation is required. Use Value: 1.7V VF balances conduction loss and EMI profile better than Schottky alternatives above 40V. |
Use Scenario: Brake chopper circuits in 24–48V BLDC motor controllers. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM turn-off. Use Value: 150A IFSM withstands repeated 100A+ brake pulses without degradation over 10⁵ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MURS320 | 200V VRRM, 3A IF(AV), 35ns trr, TO-220AC package | Limited to lower-voltage (<250V) DC-DC outputs; higher thermal mass but larger footprint | Select when faster recovery (35ns) is critical and board space allows TO-220 mounting. |
| US3M | 1000V VRRM, 3A IF(AV), 75ns trr, DO-201AD package | Higher voltage rating trades off slower recovery; suitable for PFC front-end or 800V bus clamping | Choose for 600–1000V systems where 75ns trr remains acceptable and DO-201AD fit is mandatory. |
Compared with MURS320 and US3M, UF3005-T uniquely balances 600V blocking, 50ns speed, and DO-201AD form factor - making it optimal for mid-voltage, space-constrained SMPS where both efficiency and layout density matter.
Availability
UF3005-T is available at Aetrix Electronics and suitable for AC/DC adapters, switch-mode power supplies, and industrial DC-DC converters requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for UF3005-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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
UF3005-T belongs to the UF300x ultra-fast rectifier product line, designed specifically for high-efficiency, high-frequency power conversion in compact, thermally constrained environments.
FAQ
What is the maximum junction temperature for UF3005-T?
The absolute maximum junction temperature is +150°C, with storage temperature matching this range (–65°C to +150°C). Derating begins at 55°C ambient for full 3.0A current; thermal design must maintain Tj ≤150°C under worst-case load and airflow conditions.
Is UF3005-T compatible with lead-free reflow soldering?
Yes - UF3005-T features tin-plated leads qualified per J-STD-020C Level 1 moisture sensitivity and compliant with lead-free reflow profiles up to 260°C peak temperature, meeting IPC/JEDEC J-STD-020D.1 standards.
How does UF3005-T compare to UF3004-T in practical use?
UF3005-T offers 600V VRRM versus UF3004-T's 400V, enabling use in higher-input-voltage SMPS without redesign. Both share identical DO-201AD package, 3.0A rating, and 50ns trr, but UF3005-T's higher blocking voltage increases safety margin in 375–450VDC bus applications.
Can UF3005-T be used in place of a Schottky diode?
No - UF3005-T is a PN-junction ultra-fast rectifier with 1.7V VF and 50ns trr, whereas Schottky diodes offer lower VF (0.4–0.9V) but limited VRRM (<200V) and higher leakage. Use UF3005-T only where 600V blocking and moderate VF are prioritized over ultra-low conduction loss.
UF3005-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
UF3005-T FAQ
1.How can I place an order for UF3005-T through Aetrix?
Please submit a Request for Quotation (RFQ) for UF3005-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 UF3005-T reliable?
The price and inventory of UF3005-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF3005-T is usually 5 days.
3.What payment methods are accepted for UF3005-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF3005-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF3005-T?
UF3005-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF3005-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 UF3005-T?
For technical support, including UF3005-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF3005-T requirements.
6.How does Aetrix verify that UF3005-T is sourced from the original manufacturer or authorized distributors?
All UF3005-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 UF3005-T meets industry standards.
7.What is the process for return or replacement of UF3005-T?
All UF3005-T units undergo pre-shipment inspection (PSI). If there is an issue with UF3005-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 UF3005-T part is unused and in its original packaging.
Return procedure for UF3005-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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