Fairchild GBU8A - GBU8M Bridge Rectifiers Data Handbook
Summary
These reliable bridge rectifiers are high-performance components designed for printed circuit board power applications, featuring glass passivated junctions and a 200A peak surge rating. The complete technical manual provides detailed specifications, including absolute maximum ratings, electrical parameters, thermal characteristics, and typical performance curves. This datasheet is essential for electronics engineers and circuit designers who require robust and efficient AC-to-DC conversion solutions within regulated power supply systems.
Page 1 Text Content
8A - G 8M ridge R ectifiers
February 2012
GBU8A - GBU8M Bridge Rectifiers Features Glass passivated junction Surge overload rating: 200 amperes peak Reliable low cost construction utilizing molded plastic technique. Ideal for printed circuit board. UL certified, UL # E326243.
Absolute Maximum Ratings Ta = 25°C unless otherwise noted
Value
Symbol Parameter Units
VRRM Maximum Repetitive Reverse Voltage VRMS Maximum RMS Bridge Input Voltage VR DC Reverse Voltage (Rated VR)
Average Recitified Forward Current,
IF(AV) @ Tc = 100°C** 8.0
@ Ta = 45°C* 6.0
Non-Repetitive Peak Forward Surge Current IFSM 8.3ms Single Half-Sine-Wave TSTG Storage Temperature Range -55 to +150 °C TJ Operating Junction Temperature -55 to +150 °C
* Device mounted on PCB with 0.5 × 0.5” (12 × 12mm). ** Heat-sink mounting, 4"x4"x0.15" Copper plate
Thermal Characteristics Symbol Parameter Value Units PD Power Dissipation RθJA Thermal Resistance, Junction to Ambient, * per leg °C/W RθJC Thermal Resistance, Junction to Case, ** per leg °C/W * Device mounted on PCB with 0.5 × 0.5” (12 × 12mm). ** Heat-sink mounting, 4"x4"x0.15" Copper plate
Electrical Characteristics Ta = 25°C unless otherwise noted Symbol Parameter Value Units VF Forward Voltage, per element @ 8.0A 1.0 IR Reverse Current, per element @ Rated VR
Ta = 25°C 5.0 μA Ta = 100°C μA I2t Rating for Fusing t < 8.35ms A2s
© 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com GBU8A - GBU8M Rev. A7
Page Summary Contents For Fairchild GBU8A - GBU8M Bridge Rectifiers Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 3 |
| File Size | 132.88 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What is the expected operating temperature range for these rectifiers?
The Operating Junction Temperature (T J) range is specified as -55 to +150 °C.
How do I guarantee that my parts are certified and warranted?
Purchase parts directly from Fairchild or through an Authorized Fairchild Distributor to ensure genuineness and warranty coverage.
What measures should I take for proper heat dissipation when installing the unit?
For optimal performance, especially when mounted on a PCB, consider using a 4"x4"x0.15" Copper plate as a heat sink.
Does the manufacturer provide warranties on parts bought from non-authorized sellers?
No, Fairchild will not provide any warranty coverage or assistance for parts purchased from Unauthorized Sources.