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Diodes Incorporated UF2006-T
- Part No.:
- UF2006-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
UF2006-T.pdf
- Description:
- DIODE GEN PURP 800V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,074
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Product details
Overview
UF2006-T from Diodes Incorporated is a 2.0A ultra-fast rectifier diode in DO-15 package, rated for 800V peak repetitive reverse voltage and 560V RMS reverse voltage, with 1.7V forward voltage at 2.0A and 50ns reverse recovery time, used in high-frequency AC/DC power supplies and switch-mode power converter output stages.
For engineers reviewing the UF2006-T datasheet, UF2006-T pinout, UF2006-T application, or UF2006-T equivalent, key selection criteria include VRRM=800V, trr=50ns, [email protected], IFSM=60A surge rating, and DO-15 thermal resistance of 50°C/W - critical for flyback and boost converter secondary-side rectification under thermally constrained layouts.
Technical Context
This ultra-fast rectifier employs a diffused junction structure to achieve low reverse leakage (100µA @ 100°C) and fast switching performance. Its 50ns reverse recovery time enables efficient operation in 50–500kHz SMPS topologies where diode switching loss dominates conduction loss.
The device supports 2.0A average forward current at +50°C ambient when leads are held at ambient temperature 9.5mm from case, and withstands non-repetitive 60A surge current (8.3ms half-sine), making it suitable for transient-heavy industrial power inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum peak reverse voltage the diode blocks without breakdown; defines maximum input AC or DC bus voltage in bridge or single-diode configurations. |
| trr | 50 ns - Measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables low switching loss in high-frequency converters above 100kHz. |
| VFM | 1.7 V @ 2.0A - Forward voltage drop at rated DC output current; directly impacts conduction loss and thermal design in rectifier stage. |
| IFSM | 60 A - Non-repetitive surge rating for 8.3ms half-sine; ensures survival during cold-start inrush or line transients. |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance in DO-15 package; determines required PCB copper area and airflow for thermal management. |
| IRM | 100 µA @ +100°C - Reverse leakage at elevated temperature; affects standby power and reliability in high-temp environments. |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), 0.4g weight, cathode band polarity marking, tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to transformer secondary or switching node; must handle full load current and surge peaks. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output capacitor or filter choke; carries continuous DC output current and defines voltage reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 50ns trr enables >200kHz operation with minimal switching loss in SMPS secondary-side rectification. |
| 60A surge rating | Withstands 8.3ms half-sine surges up to 60A - sufficient for most AC line fault and cold-start conditions. |
| Low reverse leakage | 100µA @ +100°C reduces standby power loss and improves reliability in high-temperature enclosures. |
| DO-15 package | Industry-standard through-hole outline with 50°C/W RθJA - compatible with legacy PCB footprints and wave-solder processes. |
Applications
| AC/DC Adapter Output Rectification | Industrial SMPS Secondary Side |
|---|---|
Use Scenario: 12–24V, 1–3A output stage in wall-mount AC/DC adapters for networking equipment. IC Role / Device Role / Timing Role: Ultra-fast rectifier converting high-frequency transformer output to regulated DC; replaces slower FR107 in efficiency-critical designs. Use Value: 50ns trr cuts switching loss by ~35% vs. standard recovery diodes, improving adapter efficiency from 82% to 85% at full load. | Use Scenario: 48V/2A output in DIN-rail mounted industrial power supply with 230VAC input. IC Role / Device Role / Timing Role: Primary output rectifier in discontinuous conduction mode (DCM) flyback converter operating at 120kHz. Use Value: 1.7V VFM and 50°C/W thermal resistance allow stable operation at +70°C ambient without forced air cooling. |
| UPS Battery Charger Stage | LED Driver Bulk Rectification |
Use Scenario: Input rectification for 24V/10A battery charger in online UPS systems with dual AC inputs. IC Role / Device Role / Timing Role: Bridge rectifier leg handling 50Hz/60Hz mains with superimposed high-frequency ripple from PFC stage. Use Value: 60A IFSM rating ensures robustness against repeated 100A+ inrush events during AC source switching. | Use Scenario: Bulk rectification in 100W constant-current LED driver for street lighting. IC Role / Device Role / Timing Role: Input-stage rectifier feeding boost PFC controller; operates continuously at 2.0A average current. Use Value: 100µA IRM @ +100°C minimizes no-load power draw, meeting Energy Star Tier 2 standby 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 |
|---|---|---|---|
| STTH2R08 | VRRM=800V, trr=75ns, VFM=1.75V@2A, DO-15 package | Slower recovery increases switching loss in >150kHz designs; higher VFM raises conduction loss at high ambient | Acceptable for cost-sensitive 60–100kHz designs where thermal margin exists |
| ES2D | VRRM=200V, trr=35ns, VFM=0.95V@2A, SMA package | Lower voltage rating limits use to ≤140VDC output; surface-mount only, no through-hole compatibility | Preferred for compact, high-efficiency <200V output designs with SMT assembly |
Compared with STTH2R08 and ES2D, UF2006-T uniquely balances 800V blocking, 50ns speed, and DO-15 manufacturability - making it optimal for legacy-compatible, thermally constrained 24–48V industrial SMPS requiring field-proven reliability.
Availability
UF2006-T is available at Aetrix Electronics and suitable for AC/DC adapters, industrial switch-mode power supplies, UPS battery chargers, and LED driver bulk rectification requiring stable component supply despite its obsolete status.
Supply support for UF2006-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 power conversion in cost-sensitive industrial and consumer power supplies.
FAQ
Is UF2006-T still in production?
No - UF2006-T is officially marked obsolete per Diodes' DS25007 Rev. 5 (May 2023). Aetrix Electronics maintains limited legacy stock and supports last-time buys with full traceability and documentation for ongoing production programs.
What is the cathode identification method on UF2006-T?
The cathode is identified by a distinct color band (typically silver or white) located near one end of the DO-15 cylindrical body. This band aligns with the cathode terminal, which must be connected toward the positive side of the output circuit.
Can UF2006-T replace UF2004-T in a design?
Yes, with voltage derating: UF2006-T (800V VRRM) exceeds UF2004-T's 400V rating, so it can substitute directly in circuits where reverse voltage stress remains ≤400V. No layout or thermal changes are needed due to identical DO-15 package and 2.0A current rating.
What is the maximum ambient temperature for full 2.0A operation?
Full 2.0A average forward current is rated at TA = +50°C, provided leads are maintained at ambient temperature at a distance of 9.5mm from the case. At +70°C ambient, derated current is approximately 1.5A based on the forward current derating curve in DS25007.
UF2006-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):
- 800 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 @ 800 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
UF2006-T FAQ
1.How can I place an order for UF2006-T through Aetrix?
Please submit a Request for Quotation (RFQ) for UF2006-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 UF2006-T reliable?
The price and inventory of UF2006-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF2006-T is usually 5 days.
3.What payment methods are accepted for UF2006-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF2006-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF2006-T?
UF2006-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF2006-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 UF2006-T?
For technical support, including UF2006-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF2006-T requirements.
6.How does Aetrix verify that UF2006-T is sourced from the original manufacturer or authorized distributors?
All UF2006-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 UF2006-T meets industry standards.
7.What is the process for return or replacement of UF2006-T?
All UF2006-T units undergo pre-shipment inspection (PSI). If there is an issue with UF2006-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 UF2006-T part is unused and in its original packaging.
Return procedure for UF2006-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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