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Taiwan Semiconductor Corporation UF1J B0G
- Part No.:
- UF1J B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
UF1J B0G.pdf
- Description:
- DIODE GEN PURP 600V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,327
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Product details
Overview
UF1J B0G from Taiwan Semiconductor is a 600 V, 1 A glass-passivated ultra-fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 75 ns reverse recovery time, 1.7 V forward voltage at 1 A and 25°C, and 30 A surge current capability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the UF1J B0G datasheet, UF1J B0G pinout, UF1J B0G application, or UF1J B0G equivalent, key selection criteria include repetitive peak reverse voltage (600 V), soft recovery behavior, thermal resistance (RθJL = 15 °C/W), RoHS and halogen-free compliance, and AEC-Q101 qualification availability (via H-suffix variants).
Technical Context
This ultra-fast recovery rectifier uses a single-die silicon PN junction with glass passivation for stable high-temperature operation up to 150°C junction temperature. Its soft recovery characteristic minimizes EMI generation during commutation in SMPS topologies.
The device exhibits 17 pF junction capacitance at 1 MHz and 4 V reverse bias, and maintains low leakage-5 µA at 25°C and 150 µA at 125°C under rated reverse voltage-supporting reliable performance in thermally demanding DC-DC converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification or secondary-side output rectification in 48 V–400 V bus systems |
| IF | 1 A continuous - suitable for low-to-medium power SMPS outputs up to ~15 W at high efficiency |
| trr | 75 ns - enables operation at switching frequencies up to ~500 kHz with controlled turn-off loss |
| VF | 1.7 V @ 1 A, 25°C - contributes to conduction loss of ~1.7 W at full load, manageable with minimal heatsinking |
| RθJL | 15 °C/W - allows direct lead-to-PCB thermal path; 30°C rise at 2 W dissipation without heatsink |
| IFSM | 30 A @ 8.3 ms - withstands typical AC line surge and startup inrush in offline adapters |
| Junction temp. max | 150°C - compatible with industrial ambient environments and sealed enclosures |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, glass-passivated, RoHS/halogen-free molding compound (UL 94V-0), cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry | Connected to lower-potential node (e.g., transformer center-tap or switch node return) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or filter capacitor positive; blocks 600 V reverse during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast soft recovery | 75 ns trr with low tail current reduces EMI and switching loss in flyback and forward converters |
| Glass-passivated junction | Enables stable operation at TJ = 150°C and improves long-term reliability vs. epoxy-passivated alternatives |
| Low leakage at high temperature | 150 µA IR at 125°C ensures minimal standby power loss in energy-efficient designs |
| AEC-Q101 qualified option | H-suffix variants (e.g., UF1JH) support automotive body electronics requiring stress-tested discretes |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or non-synchronous rectification in isolated 12 V/24 V DC-DC modules for telecom and industrial control. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; handles 1 A average load with 600 V blocking margin. Use Value: 75 ns trr limits reverse recovery loss, while 1.7 V VF balances conduction efficiency and thermal footprint in compact layouts. | Use Scenario: Freewheeling path across inductive loads (e.g., solenoids, relay coils, motor windings) in half-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during switch off-time; clamps inductive kickback to safe voltage levels. Use Value: Soft recovery prevents voltage overshoot spikes >100 V, reducing snubber component count and improving system EMC robustness. |
| AC-DC Adapter Input Bridge Leg | High-Frequency Flyback Snubber Clamp |
Use Scenario: Individual leg in discrete bridge rectifiers for universal-input (85–265 VAC) offline adapters up to 25 W. IC Role / Device Role / Timing Role: Conducts half-wave rectified current; blocks reverse voltage up to 600 V during negative AC half-cycle. Use Value: 30 A IFSM accommodates cold-start surges; DO-41 package enables manual or auto-insertion into cost-sensitive consumer PCBs. | Use Scenario: Clamp diode in RCD snubber networks across primary-side MOSFETs in 65–100 kHz flyback converters. IC Role / Device Role / Timing Role: Rapidly conducts snubber capacitor discharge pulse; must recover before next switching cycle begins. Use Value: 75 ns trr ensures full recovery within <150 ns dead time, preventing snap-off failure and secondary voltage ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U (STMicroelectronics) | Same VRRM (600 V), slightly lower VF (1.55 V), identical trr (75 ns), DO-41 package | Qualified to AEC-Q101 standard out-of-box; no suffix required | Preferred for automotive-grade designs where qualification documentation and traceability are mandatory |
| ES1J (ON Semiconductor) | Same VRRM (600 V), same IF (1 A), but higher VF (1.7 V), longer trr (100 ns), same DO-41 package | Higher conduction loss and slower recovery increase switching loss in >300 kHz designs | Suitable for cost-sensitive industrial adapters where EMI and efficiency margins allow relaxed recovery specs |
Compared with STTH1R06U, UF1J B0G offers identical electrical performance but requires H-suffix ordering for AEC-Q101; versus ES1J, UF1J B0G delivers superior soft recovery and lower EMI risk despite matching forward drop, making it preferable in noise-sensitive or high-frequency SMPS.
Availability
UF1J B0G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and AC-DC adapter input bridge legs requiring stable component supply, consistent DO-41 form factor, and verified ultra-fast recovery behavior.
Supply support for UF1J 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The UF1x series was designed specifically for high-efficiency, high-reliability switching power conversion-emphasizing soft recovery, thermal robustness, and manufacturability in axial-leaded packages for cost-sensitive yet performance-critical applications.
FAQ
What is the maximum junction temperature rating for UF1J B0G?
The UF1J B0G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version G2104). This allows reliable operation in enclosed industrial power supplies and automotive under-hood auxiliary converters when mounted on standard FR-4 PCBs with adequate copper area. The UF1J B0G maintains specified electrical parameters-including 5 µA reverse leakage at 25°C-within this thermal envelope.
Does UF1J B0G meet automotive qualification standards?
The UF1J B0G itself is not AEC-Q101 qualified; however, the pin-compatible UF1JH variant (same VRRM, trr, and package) is explicitly qualified per AEC-Q101. Taiwan Semiconductor documents this distinction in the Ordering Information section of the UF1A–UF1M datasheet (G2104), where "H" denotes AEC-Q101 compliance. For automotive body electronics requiring stress-tested discretes, UF1JH-not UF1J B0G-is the designated qualified part.
What is the reverse recovery time (trr) of UF1J B0G and how is it measured?
The UF1J B0G has a maximum reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A at TA = 25°C, per the Electrical Specifications table in the Taiwan Semiconductor UF1A–UF1M datasheet (G2104). This value reflects soft recovery behavior critical for minimizing switching loss and EMI in high-frequency SMPS, distinguishing it from standard fast recovery diodes with harder turn-off characteristics.
Is UF1J B0G RoHS and halogen-free compliant?
Yes, UF1J B0G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the FEATURES section of the official Taiwan Semiconductor UF1A–UF1M datasheet (G2104). The DO-204AL (DO-41) package uses a UL 94V-0 molding compound free of brominated flame retardants and chlorine-based additives, supporting environmentally regulated industrial and consumer product certifications.
What packaging options are available for UF1J B0G?
UF1J B0G is supplied in 3,000-piece ammo boxes (ordering code UF1J A0G), as specified in the Ordering Information table of the Taiwan Semiconductor UF1A–UF1M datasheet (G2104). Tape-and-reel packaging (5,000 pcs) is available under the base code UF1J (no suffix) or UF1JH for AEC-Q101 versions. The "B0G" suffix in UF1J B0G indicates the ammo box format with green compound and standard industrial qualification.
UF1J 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
UF1J B0G FAQ
1.How can I place an order for UF1J B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for UF1J 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 UF1J B0G reliable?
The price and inventory of UF1J B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UF1J B0G is usually 5 days.
3.What payment methods are accepted for UF1J B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UF1J B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UF1J B0G?
UF1J B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UF1J 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 UF1J B0G?
For technical support, including UF1J B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UF1J B0G requirements.
6.How does Aetrix verify that UF1J B0G is sourced from the original manufacturer or authorized distributors?
All UF1J 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 UF1J B0G meets industry standards.
7.What is the process for return or replacement of UF1J B0G?
All UF1J B0G units undergo pre-shipment inspection (PSI). If there is an issue with UF1J 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 UF1J B0G part is unused and in its original packaging.
Return procedure for UF1J B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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