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Taiwan Semiconductor Corporation GBU804H
- Part No.:
- GBU804H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, GBU
- Datasheet:
-
GBU804H.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 8A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
GBU804H from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 400V standard bridge rectifier in GBU package, featuring 200A surge current capability, 1500VRMS dielectric strength, and typical reverse leakage <0.1μA at 25°C - used in automotive-grade AC/DC front-ends and industrial SMPS.
For engineers reviewing the GBU804H datasheet, GBU804H pinout, GBU804H application, or GBU804H equivalent, key selection criteria include peak reverse voltage (400V), thermal resistance (RθJC = 2°C/W), junction temperature range (–55°C to +150°C), and AEC-Q101 qualification status for automotive reliability validation.
Technical Context
The GBU804H integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode/common-anode topology. Its 400V VRRM rating supports universal-input offline rectification up to 280VAC RMS, while the 2°C/W junction-to-case thermal resistance enables direct heatsink mounting without thermal interface material in moderate-power designs.
Designed for high-reliability environments, the device meets AEC-Q101 stress test requirements including HTSL, TC, UHAST, and biased HAST. The matte tin-plated leads comply with J-STD-002 solderability standards, and the UL 94V-0 molding compound ensures flame-retardant PCB mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports 280VAC RMS input with 1.4× safety margin for line surges |
| IF | 8 A continuous - delivers up to 96W at 12V output with 85% efficiency in typical flyback designs |
| IFSM | 200 A (8.3ms) - withstands cold-start inrush into bulk capacitors up to 470μF |
| RθJC | 2 °C/W - allows direct copper heatsink attachment for thermal management without thermal paste |
| IR @ 25°C | <0.1 μA - minimizes standby power loss in energy-efficient adapters and lighting drivers |
| Junction temp | –55°C to +150°C - enables operation in under-hood automotive environments and sealed industrial enclosures |
Pinout & Package
Package: GBU - molded plastic case with 4.0g mass, UL 94V-0 rated, matte tin-plated leads, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC input terminal 1 | One leg of AC input; connects to live or neutral depending on board layout orientation |
| ~ (AC2) | AC input terminal 2 | Second leg of AC input; forms differential input pair with AC1 for full-wave rectification |
| + (DC+) | Positive DC output | Common cathode node delivering pulsating DC to bulk capacitor and downstream converter |
| – (DC–) | Negative DC output / return | Common anode node serving as reference return path for DC load and control circuitry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications requiring HTSL, TC, and biased HAST reliability per Rev M2103 |
| 1500VRMS isolation | Enables safe creepage/clearance compliance in Class II isolated power supplies without additional insulation barriers |
| 200A surge rating | Supports robust startup into large electrolytic capacitors without derating or external NTC thermistors |
| Low IR <0.1μA | Reduces no-load power consumption below 30mW in 5V/12V adapter standby modes |
| UL Recognized #E-326243 | Meets end-equipment safety certification requirements for North American markets without additional component-level testing |
Applications
| Automotive Onboard Charger (OBC) Front-End | Industrial LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 230VAC grid input in bidirectional OBC modules for EVs. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC to unregulated DC bus prior to PFC and DC/DC stages. Use Value: AEC-Q101 qualification ensures long-term reliability under thermal cycling and vibration; 400V VRRM accommodates 230VAC +10% line swell. | Use Scenario: Input rectification in constant-current LED drivers for street lighting and tunnel illumination. IC Role / Device Role / Timing Role: Primary-side AC/DC conversion feeding buck or flyback controller ICs. Use Value: Low reverse leakage (<0.1μA) maintains low standby power; 200A IFSM handles repeated lamp hot-restart surges. |
| Medical Power Supply Input | Industrial PLC Power Module |
Use Scenario: AC input stage in Class II medical-grade power supplies meeting IEC 60601-1 2×MOPP requirements. IC Role / Device Role / Timing Role: Isolated rectification element providing reinforced insulation barrier between mains and SELV circuits. Use Value: 1500VRMS dielectric strength satisfies creepage distance requirements without auxiliary isolation transformers. | Use Scenario: Embedded 24V/48V DC power generation in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Bulk rectifier supplying unregulated DC to integrated DC/DC converters and microcontroller power rails. Use Value: –55°C to +150°C junction range supports operation inside sealed metal enclosures exposed to ambient temperatures up to 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU804 | No AEC-Q101 qualification; identical electrical specs and package | Not suitable for automotive or mission-critical industrial use requiring stress-tested reliability | Select GBU804H when AEC-Q101 compliance is mandated by system-level functional safety requirements |
| GBU8K | Same 8A/400V rating but TO-220AC package; RθJC = 1.5°C/W; higher IFSM = 350A | Requires PCB cutout and screw-mount heatsinking; not surface-mount compatible | Choose GBU8K only when higher surge immunity and lower thermal resistance justify through-hole assembly and mechanical mounting |
Compared with GBU804 and GBU8K, the GBU804H uniquely combines AEC-Q101 qualification, SMT-compatible GBU package, and 200A surge rating - making it optimal for space-constrained automotive and industrial power supplies where reliability and manufacturability must coexist.
Availability
GBU804H is available at Aetrix Electronics and suitable for automotive onboard chargers, industrial LED drivers, medical power supplies, and PLC power modules requiring stable component supply across extended product lifecycles.
Supply support for GBU804H 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 high-reliability rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The GBU series was developed to deliver AEC-Q101-compliant, high-surge-capability bridge rectifiers in compact GBU packages for next-generation power conversion systems demanding both miniaturization and field-proven reliability.
FAQ
What is the peak repetitive reverse voltage rating of the GBU804H?
The GBU804H has a peak repetitive reverse voltage (VRRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the M2103 datasheet revision and defines the maximum instantaneous reverse voltage the device can block during normal operation. It supports 230VAC inputs with sufficient margin for transient overvoltages and line swells encountered in real-world power distribution networks.
Is the GBU804H suitable for automotive applications?
Yes, the GBU804H is explicitly AEC-Q101 qualified per the ordering code suffix "H" and Version M2103 documentation. It has undergone HTSL, temperature cycling, and biased HAST testing required for automotive under-hood and cabin applications. Its –55°C to +150°C junction temperature range and 1500VRMS isolation further validate its suitability for automotive power electronics such as onboard chargers and body control modules.
What is the forward voltage drop of the GBU804H at rated current?
At IF = 8 A and TJ = 25°C, the GBU804H exhibits a maximum forward voltage drop (VF) of 1.1 V per diode - meaning total conduction loss across the bridge is approximately 2.2 V. This value is specified in the Electrical Specifications table and directly impacts conduction efficiency and thermal design in high-current rectification stages.
Does the GBU804H have UL recognition?
Yes, the GBU804H carries UL Recognition under File #E-326243. This certification confirms compliance with UL 60747-4 for semiconductor devices and validates its flammability rating (UL 94V-0), dielectric strength (1500VRMS), and construction integrity - enabling faster end-product safety approvals in North America without retesting the component.
How does the GBU804H differ from the GBU804 part number?
The GBU804H differs from GBU804 solely in AEC-Q101 qualification - all electrical parameters (VRRM, IF, IFSM, thermal resistance) and mechanical dimensions are identical. The "H" suffix denotes full AEC-Q101 stress testing and traceability, while GBU804 is intended for commercial/industrial applications where automotive-grade reliability is not mandated.
GBU804H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SIP, GBU
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU804H FAQ
1.How can I place an order for GBU804H through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU804H 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 GBU804H reliable?
The price and inventory of GBU804H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU804H is usually 5 days.
3.What payment methods are accepted for GBU804H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU804H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU804H?
GBU804H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU804H 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 GBU804H?
For technical support, including GBU804H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU804H requirements.
6.How does Aetrix verify that GBU804H is sourced from the original manufacturer or authorized distributors?
All GBU804H 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 GBU804H meets industry standards.
7.What is the process for return or replacement of GBU804H?
All GBU804H units undergo pre-shipment inspection (PSI). If there is an issue with GBU804H, 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 GBU804H part is unused and in its original packaging.
Return procedure for GBU804H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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