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ONSEMI GBU8B Bridge Rectifier

The GBU8B is a glass-passivated bridge rectifier with a surge overload rating of 200 A peak, ideal for power supply circuits and printed circuit board applications. It features reliable low-cost molded plastic construction, a UL certification (UL #E258596 GBU), and excellent thermal characteristics. Its maximum repetitive reverse voltage is 100 V, with a maximum RMS input of 70 V. The rectifier handles an average forward current of 8 A, and has a forward voltage of approximately 1.0 V at 8.0 A. Suitable for high-current, low-voltage applications in electronic systems and industrial equipment.

Authorized Distributors
Source:Newark
Part No:GBU8B
Stock:285
Inv Date:06-10-2026
Price: Unit price: $2.72
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Source:DigiKey
Part No:GBU8B
Stock:1000
Inv Date:06-10-2026
Price: Unit price: $1.1
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Source:DigiKey
Part No:GBU8B
Stock:2563
Inv Date:06-10-2026
Price: Unit price: $2
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Source:DigiKey
Part No:GBU8B
Stock:1647
Inv Date:06-10-2026
Price: Unit price: $2.61
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Part No:GBU8B
Stock:1091
Inv Date:06-11-2026
Price: Unit price: $2.61
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Part No:GBU8B
Stock:478
Inv Date:06-11-2026
Price: Unit price: $0.89
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Part No:GBU8B
Stock:428
Inv Date:06-11-2026
Price: Unit price: $1.57
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Part No:GBU8B
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.2152
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Part No:GBU8B
Stock:770
Inv Date:06-10-2026
Price: Unit price: $0.725
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Authorized Distributors
Part No:GBU8B
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.2152
Buy/RFQ:
Part No:GBU8B
Stock:770
Inv Date:06-10-2026
Price: Unit price: $0.725
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Part No:GBU8B
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.36
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Source:Arrow EU
Part No:GBU8B
Stock:3195
Inv Date:06-11-2026
Price: N/A
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Part No:GBU8B
Stock:177
Inv Date:06-11-2026
Price: N/A
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ONSEMI GBU8B Bridge Rectifier Specifications:

  • Maximum Repetitive Reverse Voltage: 100 V
  • Maximum RMS Bridge Input Voltage: 70 V
  • DC Reverse Voltage: 100 V
  • Average Rectified Forward Current: 8 A
  • Peak Forward Surge Current: 200 A (non-repetitive, 8.35 ms)
  • Storage Temperature Range: -55°C to +150°C
  • Operating Junction Temperature: -55°C to +150°C
  • Power Dissipation: 16 W
  • Thermal Resistance Junction to Ambient: 18 °C/W
  • Thermal Resistance Junction to Case: 3 °C/W
  • Forward Voltage at 8.0 A: approximately 1.0 V
  • Reverse Current at 100°C: 500 μA
  • UL Certification: UL #E258596 GBU
  • Package: GBU 4L Rail
  • Size and Mounting: Suitable for PCB mounting and heat-sink attachment

Buy the Fairchild Series Bridge Rectifier: GBU8B

Purchase the Fairchild GBU8B bridge rectifier online to ensure high current capacity and dependable performance for your power supply, industrial, or electronic applications. Designed with a glass-passivated junction, this UL-certified device handles 8 A RMS current, features a surge overload rating of 200 A, and provides excellent thermal management with thermal resistance junction to ambient of 18 °C/W. Easy to mount on printed circuit boards, it is ideal for applications requiring robust voltage and current handling capabilities, ensuring longevity and safety for your project.

Get Fairchild GBU8B today—built for high current and reliable power rectification in your industrial or electronic systems.

Frequently Asked Questions

Where can I buy ONSEMI GBU8B?

You can click on the BUY or RFQ button to purchase GBU8B from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part GBU8B?

You can download the GBU8B datasheet or visit the ONSEMI website for support.

Who is the manufacturer of GBU8B?

ONSEMI

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