GBUBA GBUBM Bridge Rectifiers Datasheet

Category: Diodes, Electronics, Fairchild Semiconductor

Summary of GBUBA GBUBM Bridge Rectifiers Datasheet

Fairchild Semiconductor’s datasheet, dated 8 October 2013, presents detailed information about the GBUBA GBUBM series of bridge rectifiers. These components showcase several key features that make them favorable for electronic applications:

Glass-Passivated Junction: Ensures device reliability by protecting against contaminants and mechanical stress.
Surge Overload Rating: Capable of withstanding surge currents up to 200 A peak, demonstrating robustness for transient conditions.
Construction: Utilizes a reliable and cost-effective molded plastic technique.
Suitability: An ideal fit for Printed Circuit Board (PCB) applications due to its design and compact size.
Certifications: The product is certified by UL, with reference number UL #E258596.

The datasheet specifies the ordering information for various models differentiated by the maximum repetitive reverse voltage, ranging from 50 V to 1000 V. All models utilize the same package type (GBU 4L) and are provided in rail packing method.

Absolute Maximum Ratings

The document stresses that exceeding absolute maximum ratings could damage the device and impact its reliability. Notably, the maximum repetitive reverse voltage (VRRM) varies between 50 V to 1000 V, and the bridge rectifiers operate effectively within a storage temperature range of -55 to +150°C, with junction temperatures likewise capped within this range. The average rectified forward current (IF(AV)) is 8.0 A at a case temperature of 100°C and 6.0 A at an ambient temperature of 45°C.

Thermal and Electrical Characteristics

Thermally, these bridge rectifiers are designed to distribute heat efficiently, with thermal resistance per leg specified for junction-to-ambient and junction-to-case scenarios – indicative of their stable performance across varying conditions. Fairchild provides values for power dissipation and thermal resistance measurements, suggesting efficient thermal management under normal operating conditions.

Electrical characteristics are provided for forward voltage and reverse current with conditions being at an ambient temperature (TA) of 25°C. The forward voltage is rated at 1.0 V when the device is conducting an 8.0 A current at 25°C. For the reverse current, the value given is applicable at the rated reverse voltage (VR), ensuring a secure operational environment for the rectifiers.

Fusing ratings, which determine the rectifiers’ capacity to handle overcurrents without damage, are also mentioned in the datasheet. The datasheet concludes with a note that the devices have been tested on a standard size PCB, and an alternate heat-sinking method is briefly described, signifying Fairchild’s attention to versatile mounting solutions.

Fairchild Semiconductor’s latest revision for this data on the GBUBA GBUBM series is Rev: 1.2.1, and further data can be accessed at the Fairchild Semiconductor website.