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Taiwan Semiconductor Corporation UF4005 B0G
- Part No.:
- UF4005 B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
UF4005 B0G.pdf
- Description:
- DIODE GEN PURP 600V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
UF4005 B0G from Taiwan Semiconductor is a 1A, 600V ultrafast recovery rectifier diode in DO-204AL (DO-41) package, featuring 75 ns reverse recovery time, 1.7 V forward voltage at 1 A, and 30 A surge current capability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the UF4005 B0G datasheet, UF4005 B0G pinout, UF4005 B0G application, or UF4005 B0G equivalent, key selection criteria include repetitive peak reverse voltage (600 V), thermal resistance (15 °C/W junction-to-lead), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for automotive and industrial DC-DC converters.
Technical Context
This discrete silicon rectifier uses a glass-passivated PN junction optimized for high-efficiency switching operation. Its ultrafast recovery (trr ≤ 75 ns) minimizes switching losses in SMPS operating above 50 kHz, while the 600 V VRRM rating supports 400 V AC input-derived topologies with safety margin.
The device operates across –55 °C to +150 °C junction temperature, with 15 °C/W junction-to-lead thermal resistance enabling direct PCB copper pad heatsinking. Pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports 400 VAC input rectification with 1.5× safety margin in offline SMPS |
| IF | 1 A continuous - suitable for low-to-medium power DC-DC outputs up to ~12 W at 12 V |
| trr | 75 ns max - enables efficient operation in 100–500 kHz switching converters |
| VF | 1.7 V @ 1 A, 25°C - contributes to <1.7 W conduction loss at full load |
| RθJL | 15 °C/W - allows ~67°C rise per watt with adequate lead copper area, simplifying thermal design |
| IR | 5 µA @ 25°C, 600 V - ensures low leakage in high-impedance hold-up or sensing circuits |
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 | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in flyback secondary, ground return in boost) |
| Cathode | Current exit point during forward conduction; reverse-blocking terminal | Marked with band; connects to output rail or positive bus; must withstand full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reliability under humidity and thermal cycling, critical for automotive under-hood use |
| Ultrafast 75 ns recovery | Reduces reverse recovery charge (Qrr) and associated switching losses vs. standard rectifiers |
| AEC-Q101 qualified option available (UF4005H) | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally constrained applications |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 75 ns trr and 1.7 V VF minimize conduction and switching losses, improving efficiency by ~1–2% over standard 1N400x diodes. | Use Scenario: Freewheeling path for inductive loads (e.g., motor windings, solenoids) in half-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when main switch turns off, clamping inductive kickback. Use Value: 30 A IFSM rating handles transient energy without failure; 600 V VRRM covers typical 400 V bus designs with margin. |
| AC-DC Adapter Secondary Side | Industrial PLC Power Supply Input Stage |
Use Scenario: Output rectification in compact wall adapters powering IoT sensors or USB-C PD accessories. IC Role / Device Role / Timing Role: Converts transformer-isolated AC to low-voltage DC; operates continuously at ambient up to 70°C. Use Value: DO-41 package enables manual or auto-insertion; 150°C TJ max allows derating headroom in enclosed enclosures. | Use Scenario: Input rectification stage of 24 V industrial control power supply fed from 240 VAC mains. IC Role / Device Role / Timing Role: High-reliability bridge or single-diode rectifier handling line transients and sustained load surges. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure long-term stability in vibration-prone factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | 1 A, 600 V, trr = 50 ns, VF = 1.3 V @ 1 A, TO-220AC package | Higher thermal mass and mounting flexibility; requires heatsink for >0.5 A continuous | Preferred where higher surge tolerance or board-level heatsinking is available |
| ON Semi MUR106 | 1 A, 600 V, trr = 75 ns, VF = 1.7 V @ 1 A, DO-41 package, halogen-free | Identical electrical specs and footprint; different manufacturer qualification and traceability chain | Suitable for dual-sourcing where DO-41 form factor and RoHS compliance are mandatory |
Compared with STTH1R06 and MUR106, UF4005 B0G offers identical DO-41 mechanical compatibility and 600 V/75 ns performance but with Taiwan Semiconductor's AEC-Q101-qualified variant path and tighter IR specification (5 µA vs. 10 µA typical), supporting low-leakage precision hold-up designs.
Availability
UF4005 B0G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial PLC power supplies requiring stable component supply, consistent DO-41 lead geometry, and halogen-free compliance.
Supply support for UF4005 B0G 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 industrial, computing, and automotive markets since 1979.
The UF400x series is part of TSC's high-reliability rectifier product line, engineered specifically for high-frequency switching power conversion where efficiency, thermal robustness, and long-term stability under thermal cycling are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the UF4005 B0G?
The UF4005 B0G has a VRRM rating of 600 V, verified per Taiwan Semiconductor's P2104 datasheet. This value defines the maximum instantaneous reverse voltage the diode can block repeatedly without breakdown. It is selected to provide safe margin above 400 VDC bus voltages common in offline SMPS designs. The UF4005 B0G must not be operated beyond this rating under any condition.
Does the UF4005 B0G have AEC-Q101 qualification?
The UF4005 B0G itself is not AEC-Q101 qualified; however, the pin-compatible UF4005H variant is explicitly qualified per AEC-Q101. The B0G suffix indicates ammo box packaging (3,000 units) in standard reliability grade. For automotive applications requiring stress-tested components, UF4005H should be specified instead of UF4005 B0G.
What is the forward voltage drop of the UF4005 B0G at rated current?
The UF4005 B0G exhibits a maximum forward voltage (VF) of 1.7 V at 1 A and 25°C junction temperature, as specified in the Electrical Specifications table of the P2104 datasheet. At elevated temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, but conduction loss remains predictable within design margins for thermal modeling.
Can the UF4005 B0G replace a UF4007 in a 600 V circuit?
No - the UF4005 B0G is rated for 600 V VRRM, while the UF4007 is rated for 1000 V. Substituting UF4005 B0G in a design originally using UF4007 risks reverse breakdown if transient spikes exceed 600 V. The UF4005 B0G is only suitable where the maximum applied reverse voltage remains strictly below 600 V with appropriate safety margin.
What does the "B0G" suffix indicate in UF4005 B0G?
The "B0G" suffix in UF4005 B0G denotes Taiwan Semiconductor's packaging code: "B" indicates DO-204AL (DO-41) package, "0" is a revision placeholder, and "G" signifies green (halogen-free) molding compound. It is not a reliability grade or temperature variant - all electrical and thermal specifications match the base UF4005 device defined in the P2104 datasheet.
UF4005 B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 17pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
UF4005 B0G FAQ
1.How can I place an order for UF4005 B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for UF4005 B0G 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 UF4005 B0G reliable?
The price and inventory of UF4005 B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF4005 B0G is usually 5 days.
3.What payment methods are accepted for UF4005 B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF4005 B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF4005 B0G?
UF4005 B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF4005 B0G 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 UF4005 B0G?
For technical support, including UF4005 B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF4005 B0G requirements.
6.How does Aetrix verify that UF4005 B0G is sourced from the original manufacturer or authorized distributors?
All UF4005 B0G 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 UF4005 B0G meets industry standards.
7.What is the process for return or replacement of UF4005 B0G?
All UF4005 B0G units undergo pre-shipment inspection (PSI). If there is an issue with UF4005 B0G, 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 UF4005 B0G part is unused and in its original packaging.
Return procedure for UF4005 B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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