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Taiwan Semiconductor Corporation UG2JA
- Part No.:
- UG2JA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
UG2JA.pdf
- Description:
- DIODE GEN PURP 600V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,072
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Product details
Overview
UG2JA from Taiwan Semiconductor is a 2A, 600V high-efficiency surface-mount fast recovery rectifier in DO-214AC (SMA) package, optimized for high-frequency switching converters and inverters in consumer electronics, lighting, and telecom power supplies. It delivers 40ns typical reverse recovery time, 1.3V max forward voltage at 2A, and 40A peak surge current capability.
For engineers reviewing the UG2JA datasheet, UG2JA pinout, UG2JA application, or UG2JA equivalent, key selection considerations include its 600V VRRM rating, low IRRM (≤2µA @ 25°C), 40ns trr performance, thermal resistance (RθJA = 70°C/W), and RoHS/halogen-free compliance for industrial-grade power conversion designs.
Technical Context
The UG2JA employs a single-die silicon PN junction structure with optimized carrier lifetime control to achieve fast recovery (trr ≤55ns) while maintaining low conduction loss. Its 1.3V VF max at 2A and 2µA IR max at 25°C support high-efficiency operation in continuous-conduction-mode (CCM) and boundary-conduction-mode (BCM) topologies.
Thermally, the DO-214AC package provides RθJL = 25°C/W and RθJA = 70°C/W, enabling reliable 2A DC operation up to 150°C junction temperature. The device's 40A IFSM rating supports robust transient handling in flyback and LLC resonant converter primary-side rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600V - Withstands repetitive reverse voltage up to 600V, suitable for 400V DC bus applications with safety margin |
| IF | 2A - Continuous forward current rating defines maximum steady-state output capability in rectifier stage |
| trr | 40–55ns - Fast reverse recovery minimizes switching losses in high-frequency (≥100kHz) SMPS designs |
| VF | ≤1.3V @ 2A - Low forward drop reduces conduction loss and improves system efficiency at rated load |
| IR | ≤2µA @ 25°C - Ultra-low leakage preserves efficiency in standby and light-load conditions |
| RθJA | 70°C/W - Thermal resistance enables PCB-level heatsinking without additional copper area for 2A operation |
| IFSM | 40A - Peak surge rating supports inrush current handling during cold-start in AC/DC adapters |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, J-STD-002 solderable, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Input terminal for forward current flow | Connected to transformer secondary or switching node; must handle 2A DC + ripple current |
| Cathode (K) | Output terminal for forward current flow | Connected to output capacitor or filter choke; polarity band identifies this terminal on PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 40ns typical trr enables >200kHz operation with minimal switching loss in PFC and DC/DC stages |
| Low forward voltage | 1.3V max VF at 2A reduces conduction loss by ~15% vs. standard 1N4007-class rectifiers |
| High surge capability | 40A IFSM withstands repeated 8.3ms half-sine surges common in universal-input AC/DC front-ends |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS, supporting eco-design requirements for global markets |
| Junction temperature range | -55°C to +150°C operation allows deployment in sealed lighting enclosures and industrial power supplies |
Applications
| LED Driver Power Supply | Laptop AC/DC Adapter |
|---|---|
Use Scenario: Secondary-side rectification in quasi-resonant flyback LED drivers for commercial lighting. IC Role / Device Role / Timing Role: High-frequency output rectifier replacing slower diodes to reduce heat and improve efficiency. Use Value: 40ns trr and 1.3V VF cut conduction + switching losses by ≥12%, enabling smaller heatsinks and higher power density. | Use Scenario: Output rectification in compact 65W laptop adapter designs operating at 100–130kHz. IC Role / Device Role / Timing Role: Primary-secondary isolation barrier rectifier with fast turn-off to minimize cross-conduction loss. Use Value: 2µA IR at 25°C maintains low standby power; DO-214AC footprint fits tight layout constraints. |
| Telecom DC/DC Module | Industrial PLC Power Input |
Use Scenario: Input rectification in 48V intermediate bus converters for telecom base station equipment. IC Role / Device Role / Timing Role: High-reliability 600V-rated rectifier handling line transients and hot-swap events. Use Value: 40A IFSM and -55°C to +150°C rating ensure uptime in harsh telecom environments with wide ambient swings. | Use Scenario: Front-end bridge rectification in programmable logic controller (PLC) power supplies with 24V/48V DC input. IC Role / Device Role / Timing Role: Surge-tolerant rectifier protecting downstream regulators from field-induced transients. Use Value: UL 94V-0 molding compound and JESD201 Class 2 whisker resistance meet industrial safety and longevity standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | Same 2A/600V rating; trr = 50ns typ, VF = 1.3V max, but RθJA = 80°C/W | Slightly higher thermal resistance limits sustained 2A operation in confined spaces | Prefer UG2JA where board space is constrained and thermal management is marginal |
| ES2D | 2A/200V rating only; trr = 35ns typ, VF = 0.95V max - lower voltage, faster, lower VF | Not suitable for 400V+ DC bus applications due to 200V VRRM limit | Select ES2D only for low-voltage (<200V) outputs; UG2JA remains required for universal-input or PoE-powered systems |
Compared with STTH2R06 and ES2D, the UG2JA uniquely balances 600V ruggedness, 40ns trr speed, and 70°C/W thermal performance in the DO-214AC footprint-making it optimal for space-constrained, high-input-voltage industrial and telecom rectification where both voltage margin and thermal headroom are critical.
Availability
UG2JA is available at Aetrix Electronics and suitable for LED driver power supplies, laptop AC/DC adapters, and telecom DC/DC modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for UG2JA 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and IATF 16949 certification.
The UG2JA belongs to TSC's UGxJA fast recovery rectifier family, engineered specifically for high-frequency, high-efficiency AC/DC and DC/DC power conversion in consumer, lighting, and communications infrastructure.
FAQ
What is the maximum junction temperature rating for the UG2JA?
The UG2JA has a maximum junction temperature (TJ) rating of +150°C, with an operational range from -55°C to +150°C. This allows reliable use in enclosed LED drivers and industrial power supplies where ambient temperatures exceed 85°C. The UG2JA's RθJA of 70°C/W means that at 2A continuous current, proper PCB copper area must be provided to maintain TJ ≤150°C under worst-case ambient conditions.
Does the UG2JA meet RoHS and halogen-free requirements?
Yes, the UG2JA is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002. These certifications are confirmed in the official Taiwan Semiconductor datasheet revision D2102 and support compliance for export to EU, Japan, and other regulated markets where hazardous substance restrictions apply to the UG2JA.
What is the reverse recovery time (trr) specification for the UG2JA?
The UG2JA has a typical reverse recovery time (trr) of 40ns and a maximum of 55ns, measured at IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This fast trr enables efficient operation in high-frequency switching power supplies above 100kHz, directly reducing switching losses in flyback and forward converter topologies where the UG2JA is commonly deployed as a secondary-side rectifier.
Is the UG2JA suitable for use in a 400V DC bus application?
Yes, the UG2JA is rated for 600V repetitive peak reverse voltage (VRRM), providing a 50% safety margin over a 400V DC bus. Its 2µA reverse leakage at 25°C and 50µA at 125°C ensures minimal standby loss, and its 40A IFSM rating handles transient overloads typical in PFC-stage rectification. These characteristics make the UG2JA well-suited for 400V bus applications such as industrial SMPS and telecom power systems.
What package type does the UG2JA use, and what are its mechanical identifiers?
The UG2JA uses the DO-214AC (SMA) surface-mount package. Key mechanical identifiers include a cathode band marking, matte tin-plated leads compliant with J-STD-002, moisture sensitivity level 1 (per J-STD-020), and a weight of approximately 0.070g. The package outline and suggested pad layout are documented in the Taiwan Semiconductor datasheet, ensuring compatibility with standard SMA reflow profiles and automated assembly processes for the UG2JA.
UG2JA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 55 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 600 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
UG2JA FAQ
1.How can I place an order for UG2JA through Aetrix?
Please submit a Request for Quotation (RFQ) for UG2JA 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 UG2JA reliable?
The price and inventory of UG2JA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UG2JA is usually 5 days.
3.What payment methods are accepted for UG2JA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UG2JA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UG2JA?
UG2JA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UG2JA 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 UG2JA?
For technical support, including UG2JA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UG2JA requirements.
6.How does Aetrix verify that UG2JA is sourced from the original manufacturer or authorized distributors?
All UG2JA 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 UG2JA meets industry standards.
7.What is the process for return or replacement of UG2JA?
All UG2JA units undergo pre-shipment inspection (PSI). If there is an issue with UG2JA, 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 UG2JA part is unused and in its original packaging.
Return procedure for UG2JA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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