Taiwan Semiconductor Corporation GBU806-K
- Part No.:
- GBU806-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-ESIP, GBU
- Datasheet:
-
GBU806-K.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 8A GBU
- Quantity:
- Payment:

- Shipping:

Inventory:8,909
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Product details
Overview
GBU806-K from Taiwan Semiconductor is a standard single-phase bridge rectifier in GBU package, rated for 8A average forward current and 800V repetitive peak reverse voltage (VRRM), with 200A non-repetitive surge capability and junction-to-case thermal resistance of 2°C/W - used in AC/DC front-end conversion for industrial power supplies.
For engineers reviewing the GBU806-K datasheet, GBU806-K pinout, GBU806-K application, or GBU806-K equivalent, key selection factors include verified VRRM=800V, IF=8A, IFSM=200A, RθJC=2°C/W, and UL recognition under file #E-326243 for safety-critical designs.
Technical Context
The GBU806-K integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling direct AC-to-DC conversion without external wiring. Its GBU molded package supports PCB mounting with matte tin-plated leads compliant to J-STD-002 solderability standards.
Thermal performance is defined by RθJA=21°C/W (free-air) and RθJC=2°C/W (case-to-junction), allowing reliable operation up to TJ=150°C. Reverse leakage remains ≤5µA at 25°C and ≤500µA at 125°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse voltage the device blocks per diode leg without breakdown |
| IF(AV) | 8 A - continuous average forward current rating at case temperature ≤75°C |
| IFSM | 200 A - peak non-repetitive surge current (8.3 ms half-sine) the bridge withstands without failure |
| RθJC | 2 °C/W - thermal resistance from junction to case, critical for heatsink interface design |
| IR @ 25°C | ≤5 µA - maximum reverse leakage per diode at rated VRRM and room temperature |
| VF @ 8A | ≤1.1 V - maximum forward voltage drop per diode at full rated current and 25°C junction temp |
| UL File | E-326243 - certified recognition for safety compliance in end-equipment approvals |
Pinout & Package
GBU806-K uses the industry-standard GBU through-hole package: 4-pin, single-in-line (SIL) quad configuration with AC1, AC2, +DC, and –DC terminals. Case meets UL 94V-0 flammability rating; weight ≈4.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to transformer secondary or line input |
| AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge AC path |
| +DC | Positive DC Output | Anode of output diodes; delivers rectified positive rail to filter capacitor |
| –DC | Negative DC Output / Common Return | Cathode of output diodes; serves as circuit ground reference point |
Key Features
| Feature | Design Value |
|---|---|
| Dielectric strength | 1500 VRMS isolation between AC and DC sides - enables reinforced insulation in Class II SMPS |
| Surge robustness | 200 A IFSM (8.3 ms) - sustains high-energy line transients without degradation |
| Low leakage | ≤5 µA IR at 25°C - minimizes standby power loss in energy-efficient adapters |
| Halogen-free construction | Complies with IEC 61249-2-21 - satisfies environmental requirements for RoHS-compliant manufacturing |
| Solderability | Matte tin-plated leads meeting J-STD-002 - ensures reliable through-hole reflow and wave solder joint integrity |
Applications
| Switching Mode Power Supply (SMPS) | AC/DC Adapters |
|---|---|
Use Scenario: Primary-side rectification in 50–100W offline flyback converters with universal AC input (85–265VAC). IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC line to pulsating DC prior to bulk capacitor filtering. Use Value: 800V VRRM provides 2× margin over 265VAC peak (375V), ensuring long-term reliability under brownout and surge conditions. | Use Scenario: Input stage rectification in wall-mounted USB-C PD adapters delivering 20–65W output. IC Role / Device Role / Timing Role: Standard bridge rectifier providing isolated DC bus for primary-side controller and transformer drive. Use Value: UL E-326243 recognition simplifies end-product safety certification and reduces time-to-market. |
| LED Driver Power Stage | Industrial Control Power Module |
Use Scenario: Rectification in constant-current LED drivers for street lighting and high-bay fixtures operating from 230VAC mains. IC Role / Device Role / Timing Role: AC input bridge feeding PFC stage or directly supplying buck/boost LED controller ICs. Use Value: RθJC = 2°C/W enables direct mounting to metal-core PCB or small heatsink, supporting >85% efficiency at full load. | Use Scenario: Auxiliary power supply input rectification in PLC I/O modules and motor drive control boards. IC Role / Device Role / Timing Role: Robust front-end rectifier handling intermittent surges and wide ambient temperature range (−40°C to +85°C). Use Value: 150°C max junction temperature and −55°C to +150°C storage range support extended field life in unventilated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU806 | No "-K" suffix; same electrical specs and GBU package but lacks halogen-free and RoHS-compliant marking per IEC 61249-2-21 | Acceptable where halogen-free requirement is not enforced (e.g., non-EU legacy designs) | Select GBU806-K when compliance with modern environmental directives is mandatory |
| GBU8J | Same 8A/800V rating and GBU package; differs in marking code and date-code format; identical thermal and electrical specs per TSC F2103 revision | No functional difference - used interchangeably in new designs with updated procurement codes | GBU8J is a functionally identical alternate ordering code issued under same datasheet revision |
Compared with GBU806 and GBU8J, the GBU806-K explicitly guarantees halogen-free molding compound and RoHS compliance per IEC 61249-2-21, making it the required choice for EU-market products and green manufacturing programs.
Availability
GBU806-K is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, LED driver power stages, and industrial control power modules requiring stable component supply across multi-year production cycles.
Supply support for GBU806-K 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors.
The GBU806-K belongs to TSC's standard bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in consumer, industrial, and lighting power systems.
FAQ
What is the peak repetitive reverse voltage rating for GBU806-K?
The GBU806-K has a repetitive peak reverse voltage (VRRM) rating of 800 V, confirmed in the Absolute Maximum Ratings table on page 1 of the F2103 datasheet. This value is specific to GBU806-K and distinguishes it from GBU804-K (400 V), GBU805-K (600 V), and GBU807-K (1000 V). The 800 V rating ensures safe operation with 230 VAC mains including transient overvoltages.
Does GBU806-K meet UL safety certification requirements?
Yes, the GBU806-K is UL Recognized under file number E-326243, as stated in the Features section of the official datasheet. This certification covers dielectric strength (1500 VRMS), flammability (UL 94V-0), and construction - enabling its use in end-products requiring UL/CSA approval without additional component-level testing.
What is the thermal resistance from junction to case for GBU806-K?
The junction-to-case thermal resistance (RθJC) of the GBU806-K is 2°C/W, per the Thermal Performance table in the F2103 datasheet. This low value allows efficient heat transfer to an external heatsink or metal-core PCB, supporting sustained 8 A operation at elevated ambient temperatures when properly mounted.
Is GBU806-K halogen-free and RoHS compliant?
Yes, the GBU806-K is both halogen-free per IEC 61249-2-21 and RoHS compliant, as explicitly noted in the Features section. The "-K" suffix denotes this environmental compliance, differentiating it from non-suffixed variants like GBU806 that lack halogen-free certification.
What is the maximum surge current rating for GBU806-K?
The GBU806-K supports a non-repetitive peak forward surge current (IFSM) of 200 A for an 8.3 ms single half-sine waveform, as specified in the Absolute Maximum Ratings table. This rating reflects the device's ability to survive common-mode line surges and inrush events without parametric shift or catastrophic failure.
GBU806-K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-ESIP, GBU
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 800 V
- Current - Average Rectified (Io):
- 8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU806-K FAQ
1.How can I place an order for GBU806-K through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU806-K 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 GBU806-K reliable?
The price and inventory of GBU806-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU806-K is usually 5 days.
3.What payment methods are accepted for GBU806-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU806-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU806-K?
GBU806-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU806-K 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 GBU806-K?
For technical support, including GBU806-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU806-K requirements.
6.How does Aetrix verify that GBU806-K is sourced from the original manufacturer or authorized distributors?
All GBU806-K 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 GBU806-K meets industry standards.
7.What is the process for return or replacement of GBU806-K?
All GBU806-K units undergo pre-shipment inspection (PSI). If there is an issue with GBU806-K, 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 GBU806-K part is unused and in its original packaging.
Return procedure for GBU806-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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