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SMC Diode Solutions GBU810
- Part No.:
- GBU810
- Manufacturer:
- SMC Diode Solutions
- Category:
- Bridge Rectifiers
- Package:
- 4-ESIP
- Datasheet:
-
GBU810.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 8A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:1,876
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Product details
Overview
GBU810 from Diodes Incorporated is a standard recovery 8A bridge rectifier with 1000V peak reverse voltage (VRRM), 1.0V max forward voltage at 4A, 5µA max reverse leakage at 25°C, and 200A non-repetitive surge rating - used in AC/DC front-end power conversion for industrial power supplies and motor drive input stages.
For engineers reviewing the GBU810 datasheet, GBU810 pinout, GBU810 application, or GBU810 equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (2.2°C/W junction-to-case), IFSM capability for inrush handling, and UL recognition (E95060) for safety-compliant designs.
Technical Context
This single-phase, full-wave bridge rectifier employs glass-passivated silicon die to ensure stable reverse blocking and low leakage across -55°C to +150°C operating range. Its 1500VRMS case dielectric strength supports reinforced insulation in isolated power architectures.
The device is rated for 8.0A average forward current at TC = +100°C when mounted on a 50mm × 50mm × 1.6mm copper heatsink, with derating required for capacitive loads (−20% current). Junction capacitance is 130pF at 1MHz and 4V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak line transients up to 1000V in 230VAC systems with safety margin |
| IF(AV) | 8.0 A @ TC = +100°C - Sustains continuous DC output current with appropriate heatsinking |
| VF Max | 1.0 V @ 4A - Limits conduction loss to ≤4W per half-cycle in full-wave operation |
| IR Max | 5 µA @ 25°C - Ensures minimal standby power loss in offline SMPS standby modes |
| IFSM | 200 A (8.3ms half-sine) - Handles cold-start inrush into bulk capacitor banks |
| RθJC | 2.2 °C/W - Enables thermal design with measurable junction temperature rise under load |
| VB | 1000 V - Confirmed breakdown voltage at 5µA test current, matching VRRM rating |
Pinout & Package
Package: GBU - 4-pin through-hole plastic package (UL 94V-0), designed for #6 screw mounting with 5.0 in-lb max torque; weight ≈3.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC Input Terminal 1 | One leg of AC input; connected internally to cathode of D1 and anode of D2 |
| ~ (AC2) | AC Input Terminal 2 | Second leg of AC input; connected internally to cathode of D3 and anode of D4 |
| + (DC+) | Positive DC Output | Common cathode node of D1 and D3; delivers rectified positive voltage |
| – (DC–) | Negative DC Output | Common anode node of D2 and D4; serves as return path for DC load current |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance in humid industrial environments |
| 1500VRMS case isolation | Meets reinforced insulation requirements for Class II AC/DC converters without additional barriers |
| 200A surge rating | Supports repeated cold-start events into 1000µF+ bulk capacitors without degradation |
| UL Recognized (E95060) | Validates compliance with UL 60747-4 for discrete semiconductors in end-equipment certification |
| Lead-free & RoHS 3 compliant | Enables global market access including EU, UK, and Turkey without hazardous substance restrictions |
Applications
| Industrial Power Supply Input Stage | Motor Drive AC Line Interface |
|---|---|
Use Scenario: Rectifying 230VAC mains before bulk capacitor and PFC stage in DIN-rail mounted PSUs. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing unidirectional DC bus voltage. Use Value: 1000V VRRM ensures >2× peak line voltage margin; 200A IFSM withstands repeated inrush during auto-restart cycles. | Use Scenario: Converting 3-phase or single-phase AC input to DC link in HVAC blower inverters. IC Role / Device Role / Timing Role: Input-stage bridge delivering stable DC bus for IGBT gate drivers and control logic. Use Value: 2.2°C/W RθJC enables direct heatsink mounting; UL E95060 simplifies end-product safety approval. |
| LED Streetlight Driver Front-End | Appliance Control Board AC Sensing |
Use Scenario: Mains rectification in outdoor-rated LED drivers exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Primary AC/DC conversion element feeding downstream flyback or buck-boost regulator. Use Value: −55°C to +150°C operating range maintains performance in sealed, thermally constrained enclosures. | Use Scenario: Low-power AC zero-cross detection and voltage monitoring in smart washing machine controllers. IC Role / Device Role / Timing Role: Precision AC input conditioning for microcontroller-based phase-angle sensing. Use Value: 5µA IR max at 25°C minimizes signal distortion; glass passivation prevents leakage drift in high-humidity laundry environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU8K (ON Semiconductor) | VRRM = 1000V, IF(AV) = 8A, VF = 1.1V max @ 4A, RθJC = 2.5°C/W | Slightly higher VF increases conduction loss by ~0.4W; lower thermal conductivity requires larger heatsink area | Select if ON Semi supply chain alignment is required; verify thermal margin with layout simulation |
| KBU10M (Shindengen) | VRRM = 1000V, IF(AV) = 10A, VF = 1.05V max @ 4A, RθJC = 2.0°C/W, same GBU footprint | Higher IF(AV) allows 25% overload headroom; tighter thermal resistance improves power density | Prefer for new designs needing extended current margin or improved thermal performance without PCB rework |
Compared with GBU810, GBU8K trades minor thermal and conduction penalties for second-source availability, while KBU10M offers higher current rating and better thermal efficiency in identical mounting - both retain UL recognition and GBU pin compatibility.
Availability
GBU810 is available at Aetrix Electronics and suitable for industrial power supplies, motor drive input stages, LED streetlight drivers, and appliance control boards requiring stable component supply and long-term manufacturability.
Supply support for GBU810 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The GBU series belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in industrial, appliance, and lighting applications where fast recovery is not required.
FAQ
What is the maximum allowable mounting torque for the GBU810?
The GBU810 datasheet specifies a maximum mounting torque of 5.0 inch-pounds when securing the device via #6 screw. Exceeding this value risks cracking the plastic package or damaging internal wire bonds, potentially causing premature failure or increased leakage current under thermal cycling.
Does the GBU810 require a heatsink for 8A continuous operation?
Yes - the 8.0A average forward current rating is specified at TC = +100°C, meaning the case temperature must be held at or below 100°C. Without a heatsink, junction temperature will exceed safe limits even at moderate loads; a 50mm × 50mm × 1.6mm copper plate is the reference heatsink used in datasheet testing.
Is the GBU810 suitable for use in AEC-Q101 qualified automotive applications?
No - the standard GBU810 is not AEC-Q101 qualified. Diodes offers automotive-grade variants (e.g., GBU810-AQ) with PPAP documentation, IATF 16949 manufacturing, and extended qualification testing; these carry separate orderable part numbers and must be explicitly selected for automotive use.
How does capacitive loading affect the GBU810's current rating?
The datasheet mandates a 20% reduction in IF(AV) when driving capacitive loads due to high peak currents during capacitor charging. For example, the 8.0A rating drops to 6.4A average when feeding a bulk capacitor directly - designers must apply this derating or add inrush limiting (e.g., NTC thermistor) to avoid overstress.
GBU810 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- SMC Diode Solutions
- Series:
- -
- Package/Case:
- 4-ESIP
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1 kV
- Current - Average Rectified (Io):
- 8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU810 FAQ
1.How can I place an order for GBU810 through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU810 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 GBU810 reliable?
The price and inventory of GBU810 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU810 is usually 5 days.
3.What payment methods are accepted for GBU810?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU810 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU810?
GBU810 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU810 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 GBU810?
For technical support, including GBU810 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU810 requirements.
6.How does Aetrix verify that GBU810 is sourced from the original manufacturer or authorized distributors?
All GBU810 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 GBU810 meets industry standards.
7.What is the process for return or replacement of GBU810?
All GBU810 units undergo pre-shipment inspection (PSI). If there is an issue with GBU810, 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 GBU810 part is unused and in its original packaging.
Return procedure for GBU810:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GBU810 Tags
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