My Inquiry
My Account
Taiwan Semiconductor Corporation GBU803
- Part No.:
- GBU803
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-ESIP, GBU
- Datasheet:
-
GBU803.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 8A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:8,042
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
GBU803 from Taiwan Semiconductor is a standard single-phase bridge rectifier IC rated for 8A average forward current and 200V repetitive peak reverse voltage, with 200A surge capability and 1500VRMS dielectric strength; it features quad diode configuration in GBU package and is widely used in AC/DC front-end stages of offline power supplies.
For engineers reviewing the GBU803 datasheet, GBU803 pinout, GBU803 application, or GBU803 equivalent, key selection factors include VRRM=200V, IF=8A, IFSM=200A, TJ(max)=150°C, and UL recognition under file #E-326243 - all critical for industrial adapter and SMPS design validation.
Technical Context
The GBU803 integrates four silicon junction diodes in a single-phase full-wave bridge configuration, enabling direct AC-to-DC conversion without external wiring. Its thermal resistance RθJC = 2°C/W and RθJA = 21°C/W support high-power dissipation in compact PCB layouts.
Electrical behavior is defined by forward voltage ≤1.1V at 8A/25°C, reverse leakage ≤5µA at 25°C and ≤500µA at 125°C, and junction capacitance of 211pF per diode at 1MHz/4V - parameters directly impacting switching loss and EMI in high-frequency SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF(AV) | 8 A - continuous average forward current rating at case temperature ≤75°C |
| IFSM | 200 A - peak non-repetitive surge current (8.3ms half-sine) the bridge withstands |
| TJ(max) | +150 °C - maximum junction temperature for reliable long-term operation |
| RθJC | 2 °C/W - thermal resistance from junction to case, enabling efficient heatsink coupling |
| VR(RMS) | 140 V - maximum RMS input voltage compatible with 200V VRRM rating |
| IR @ 25°C | ≤5 µA - low reverse leakage ensures minimal standby power loss in offline converters |
Pinout & Package
Package: GBU - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 4.00g weight, polarity marked on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC terminal 1 | One of two AC input pins; connects to live/neutral line in full-wave rectification |
| AC2 | Input AC terminal 2 | Second AC input pin; completes bridge input path with AC1 |
| + | Positive DC output | Anode-side output node delivering rectified positive voltage to filter capacitor |
| – | Negative DC output | Cathode-side output node serving as common return/reference for DC load |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognition | File #E-326243 - certified for safety compliance in end-equipment approvals |
| Dielectric Strength | 1500VRMS isolation - ensures robust insulation between AC inputs and DC outputs |
| AEC-Q101 Option | Available as GBU803H - qualified for automotive-grade reliability testing |
| RoHS & Halogen-Free | Compliant per IEC 61249-2-21 - meets environmental requirements for global manufacturing |
| Surge Robustness | 200A IFSM - supports high inrush current during cold-start of power supplies |
Applications
| LED Driver Power Supply | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Off-line LED driver converting 85–265VAC mains to regulated DC for constant-current LED strings. IC Role / Device Role / Timing Role: Bridge rectifier providing full-wave AC input conversion prior to PFC and DC/DC stages. Use Value: 200V VRRM and 8A IF rating accommodate universal input range while maintaining thermal margin at 75°C case temperature. | Use Scenario: 24V/5A industrial adapter powering PLC I/O modules and sensors. IC Role / Device Role / Timing Role: Primary-side rectification element converting AC line to unregulated DC bus feeding downstream buck converter. Use Value: 1500VRMS isolation and UL recognition simplify safety certification; 200A surge rating handles transformer inrush. |
| Switching Mode Power Supply (SMPS) | Commercial Lighting Ballast |
Use Scenario: 100W open-frame SMPS for office equipment with active PFC stage. IC Role / Device Role / Timing Role: Input rectifier delivering pulsating DC to boost PFC inductor and switch node. Use Value: Low VF (≤1.1V @ 8A) reduces conduction loss; 211pF junction capacitance minimizes high-frequency noise coupling. | Use Scenario: Electronic ballast for T8 fluorescent lamps operating from 220–240VAC mains. IC Role / Device Role / Timing Role: Mains rectification stage feeding resonant inverter circuit. Use Value: 150°C max junction temperature enables operation in enclosed luminaires; RoHS/halogen-free compliance meets lighting industry mandates. |
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 = 800V, IF = 8A, same GBU package and pinout | Higher reverse voltage rating suits 380VAC three-phase or 277VAC commercial lighting | Select GBU8K only when system requires >200V reverse blocking margin |
| KBU8B (Shindengen) | VRRM = 100V, IF = 8A, identical mechanical footprint but lower voltage rating | Limited to 120VAC-only systems; not suitable for universal-input designs | Choose KBU8B only for cost-sensitive 120VAC-only applications where 200V margin is unnecessary |
Compared with GBU803, GBU8K offers higher reverse voltage headroom at no layout change but increases cost and may reduce efficiency at lower voltages; KBU8B lowers BOM cost but restricts global input compatibility - GBU803 remains optimal for 200V-rated universal-input SMPS and adapters.
Availability
GBU803 is available at Aetrix Electronics and suitable for switching mode power supplies, industrial AC/DC adapters, and commercial LED driver designs requiring stable component supply and long-term lifecycle assurance.
Supply support for GBU803 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 power ICs.
The GBU series was developed for high-reliability AC/DC front-end rectification in industrial, lighting, and consumer power supplies - emphasizing thermal robustness, safety certification, and surge resilience.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for GBU803?
The GBU803 has a VRRM rating of 200 V, meaning it can reliably block up to 200 volts of repetitive reverse voltage across its AC terminals without breakdown. This value is specified in the Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet (Version M2103) and defines the upper limit for safe AC input voltage selection in designs using the GBU803.
Does GBU803 have UL recognition and what is the file number?
Yes, the GBU803 is UL Recognized under file #E-326243. This certification confirms compliance with UL 60747-4 for semiconductor devices and supports end-product safety approvals. The UL mark applies to the standard GBU803 variant and is explicitly stated in the FEATURES section of the official Taiwan Semiconductor datasheet.
What is the forward voltage drop (VF) of GBU803 at full rated current?
At IF = 8 A and TJ = 25°C, the GBU803 exhibits a maximum forward voltage drop of 1.1 V per diode path, resulting in ~2.2 V total conduction loss across the bridge. This value is specified in the Electrical Specifications table and directly impacts conduction losses and thermal design in high-current applications such as 24V/5A adapters.
Is GBU803 suitable for automotive applications?
The standard GBU803 is not AEC-Q101 qualified, but the pin-compatible GBU803H variant is. Taiwan Semiconductor explicitly lists AEC-Q101 qualification as an available option in the Ordering Information section. For automotive use, designers must specify GBU803H - the base GBU803 lacks the required stress test documentation and screening.
What is the thermal resistance from junction to ambient (RθJA) for GBU803?
The GBU803 has a typical junction-to-ambient thermal resistance of 21°C/W under standard PCB mounting conditions (with 1-inch² copper pad). This value is provided in the Thermal Performance section and is essential for calculating maximum allowable power dissipation before exceeding TJ(max) = +150°C in real-world board layouts.
GBU803 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):
- 200 V
- Current - Average Rectified (Io):
- 8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 8 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU803 FAQ
1.How can I place an order for GBU803 through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU803 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 GBU803 reliable?
The price and inventory of GBU803 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU803 is usually 5 days.
3.What payment methods are accepted for GBU803?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU803 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU803?
GBU803 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU803 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 GBU803?
For technical support, including GBU803 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU803 requirements.
6.How does Aetrix verify that GBU803 is sourced from the original manufacturer or authorized distributors?
All GBU803 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 GBU803 meets industry standards.
7.What is the process for return or replacement of GBU803?
All GBU803 units undergo pre-shipment inspection (PSI). If there is an issue with GBU803, 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 GBU803 part is unused and in its original packaging.
Return procedure for GBU803:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GBU803 Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
