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Taiwan Semiconductor Corporation UR8KB60
- Part No.:
- UR8KB60
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-ESIP
- Datasheet:
-
UR8KB60.pdf
- Description:
- BRIDGE RECT 1PHASE 600V 8A D3K
- Quantity:
- Payment:
- Shipping:
Inventory:1,488
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Product details
Overview
UR8KB60 from Taiwan Semiconductor is a 8A, 600V standard quad bridge rectifier in D3K package, featuring 170A surge current capability, 1.10V max forward voltage at 8A/25°C, and UL Recognized (E-326243) construction. It delivers robust AC-to-DC conversion for high-reliability power supplies operating up to 150°C junction temperature.
For engineers reviewing the UR8KB60 datasheet, UR8KB60 pinout, UR8KB60 application, or UR8KB60 equivalent, key selection factors include its 600V repetitive peak reverse voltage, 13°C/W junction-to-lead thermal resistance, matte tin-plated solderable leads per J-STD-002, and compliance with RoHS and IEC 61249-2-21 halogen-free standards.
Technical Context
The UR8KB60 integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling direct AC input rectification without external interconnection. Its D3K package supports PCB mounting with 0.80 N·m maximum torque and meets UL 94V-0 flammability rating.
Thermal performance is defined with reference to a 4" × 6" × 0.25" aluminum heat sink: RθJL = 13°C/W and RθJC = 14°C/W confirm efficient heat transfer from junction to lead and case, critical for sustained 8A average forward current operation at elevated ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Average Forward Current) | 8 A - Sustained DC output current capability under heatsink-cooled conditions |
| VRRM (Repetitive Peak Reverse Voltage) | 600 V - Maximum AC peak voltage the bridge withstands without breakdown |
| IFSM (Surge Peak Forward Current) | 170 A - Short-duration (8.3 ms) overload tolerance during power-up or line transients |
| TJ MAX (Maximum Junction Temperature) | 150 °C - Upper thermal limit for reliable long-term operation |
| RθJL (Junction-to-Lead Thermal Resistance) | 13 °C/W - Enables effective conduction cooling through PCB copper or heatsink interface |
| VF (Forward Voltage @ 8A, 25°C) | 1.20 V max - Directly determines conduction loss (9.6 W total for bridge at full load) |
| IR (Reverse Current @ 600V, 125°C) | 500 µA max - Low leakage preserves efficiency in high-temperature SMPS standby modes |
Pinout & Package
Package: D3K - Molded plastic case with matte tin-plated leads, UL 94V-0 rated, 1.24g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to transformer secondary or line filter output |
| AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| + (Anode Common) | Positive DC Output | Full-wave rectified positive rail; ties internally to anodes of two diodes |
| – (Cathode Common) | Negative DC Output | Full-wave rectified negative rail; ties internally to cathodes of two diodes |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognition (E-326243) | Validates dielectric strength and flammability compliance for safety-critical end equipment |
| High Surge Current (170A) | Withstands inrush currents from large input capacitors without degradation |
| JESD 201 Class 1A Whisker Resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term solder joint reliability |
| Halogen-Free Construction | Meets IEC 61249-2-21 for environmentally compliant manufacturing and end-of-life processing |
Applications
| Switching Mode Power Supply | AC-DC Adapter |
|---|---|
Use Scenario: Primary-side rectification in 65–150W offline SMPS with universal AC input (85–265VAC). IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC line to unregulated DC bus prior to PFC and DC-DC stages. Use Value: 600V VRRM and 170A IFSM ensure robustness against line surges and cold-start inrush, while 13°C/W RθJL supports compact heatsink design. | Use Scenario: Compact wall-mounted or desktop AC-DC adapters delivering 12–24V/3–6A output. IC Role / Device Role / Timing Role: Input-stage rectifier providing low-loss, high-reliability DC feed to flyback controller ICs. Use Value: Matte tin-plated leads ensure consistent J-STD-002 solderability across high-volume reflow processes, and 1.24g weight aids mechanical stability on small PCBs. |
| LED Driver Power Stage | Industrial Control Power Module |
Use Scenario: Constant-voltage LED drivers for commercial lighting systems operating from 230VAC mains. IC Role / Device Role / Timing Role: Bridge rectifier supplying bulk DC to buck or buck-boost LED current regulators. Use Value: 150°C TJ max and 500µA IR at 125°C minimize thermal derating in enclosed luminaires, improving lumen maintenance over lifetime. | Use Scenario: Auxiliary power supply in PLC I/O modules or motor drive control boards requiring stable +5V/+15V rails. IC Role / Device Role / Timing Role: Isolated AC input rectifier feeding linear or switching regulators powering logic and analog circuitry. Use Value: UL recognition and RoHS/halogen-free compliance meet industrial safety and environmental certification requirements (e.g., CE, UL 508). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU8K | Same 8A/600V rating, but GBU package (larger footprint, higher RθJA = 35°C/W) | Less suitable for space-constrained PCBs; requires larger heatsinking area | Choose GBU8K only if legacy layout compatibility outweighs thermal density needs |
| GBU8J | 600V rating, but lower IFSM (120A) and higher VF (1.30V max @ 8A) | Reduced surge margin and higher conduction loss may limit use in high-inrush designs | Select GBU8J where cost sensitivity dominates and surge events are well-clamped externally |
Compared with GBU8K and GBU8J, the UR8KB60 offers superior thermal efficiency (RθJL = 13°C/W), tighter VF control (1.20V max), and verified UL recognition-making it optimal for compact, high-reliability AC-DC front-ends where board space and safety certification are critical.
Availability
UR8KB60 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED driver power stages requiring stable component supply, long-lifecycle availability, and certified safety compliance.
Supply support for UR8KB60 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 power discrete manufacturer specializing in rectifiers, TVS diodes, MOSFETs, and IGBTs for industrial and consumer power systems.
The UR8KB60 belongs to TSC's UR8KBx quad bridge rectifier family, engineered for high-efficiency, safety-certified AC-DC conversion in space-constrained, thermally demanding power supply applications.
FAQ
What is the maximum junction temperature rating for UR8KB60?
The UR8KB60 has a maximum junction temperature (TJ MAX) of +150°C, validated across its full operating range from –55°C to +150°C. This rating enables reliable operation in enclosed, high-ambient environments such as LED drivers and industrial power modules. Derating curves in the UR8KB60 datasheet specify usable forward current versus case temperature, and thermal design must respect the 13°C/W junction-to-lead resistance to avoid exceeding this limit.
Does UR8KB60 support lead-free soldering processes?
Yes, UR8KB60 features matte tin-plated leads qualified per J-STD-002 for solderability, fully compatible with lead-free reflow profiles including peak temperatures up to 260°C. The D3K package molding compound meets UL 94V-0 flammability rating and is halogen-free per IEC 61249-2-21, satisfying RoHS and JEDEC MSL-1 handling requirements without special baking or moisture sensitivity precautions.
What is the marking code physically printed on the UR8KB60 device?
The UR8KB60 is laser-marked with "UR8KB60" on the top surface of the D3K package, along with green compound indicator (G), factory code (F), and date code (YWW). This marking aligns with Taiwan Semiconductor's C2104 version specification and distinguishes it from UR8KB80 and UR8KB100 variants in the same family, which are marked with their respective voltage codes.
How does UR8KB60 compare to UR8KB80 in terms of reverse voltage rating?
The UR8KB60 is rated for 600V repetitive peak reverse voltage (VRRM), whereas UR8KB80 is rated for 800V. Both share identical forward current (8A), surge current (170A), thermal resistance (13°C/W RθJL), and package (D3K). Select UR8KB60 when system-level transient protection limits peak reverse stress to ≤600V; UR8KB80 provides additional margin for higher-line or less-filtered AC inputs.
Is UR8KB60 certified for use in safety-critical power supplies?
Yes, UR8KB60 is UL Recognized under File #E-326243, confirming compliance with UL 60747-4 for semiconductor devices and validating dielectric strength, flammability (UL 94V-0), and construction integrity. This certification supports its use in end equipment requiring UL/CSA/IEC 62368-1 approval, including Class II adapters and industrial power supplies where reinforced insulation and creepage/clearance integrity are mandatory.
UR8KB60 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-ESIP
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- D3K
UR8KB60 FAQ
1.How can I place an order for UR8KB60 through Aetrix?
Please submit a Request for Quotation (RFQ) for UR8KB60 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 UR8KB60 reliable?
The price and inventory of UR8KB60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UR8KB60 is usually 5 days.
3.What payment methods are accepted for UR8KB60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UR8KB60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UR8KB60?
UR8KB60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UR8KB60 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 UR8KB60?
For technical support, including UR8KB60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UR8KB60 requirements.
6.How does Aetrix verify that UR8KB60 is sourced from the original manufacturer or authorized distributors?
All UR8KB60 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 UR8KB60 meets industry standards.
7.What is the process for return or replacement of UR8KB60?
All UR8KB60 units undergo pre-shipment inspection (PSI). If there is an issue with UR8KB60, 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 UR8KB60 part is unused and in its original packaging.
Return procedure for UR8KB60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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