The R454005-5A is a radial leaded varistor from Littelfuse Inc. It's designed to protect sensitive electronic equipment against voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). This varistor offers a high surge current capability and fast response time, ensuring effective protection for various applications.

Applications

• Power supplies
• Industrial equipment
• Consumer electronics
• Telecom systems
• Lighting applications

Features

• High surge current capability
• Fast response time
• Wide operating voltage range
• RoHS compliant
• Agency approvals: UL, VDE, CSA
• Radial leaded package for easy PCB mounting

Benefits

• Provides robust overvoltage protection
• Enhances the reliability and lifespan of electronic equipment
• Reduces downtime and repair costs
• Complies with international safety standards
• Simple to integrate into existing designs

Additional Details

This varistor is constructed using a metal oxide varistor (MOV) technology, which allows it to absorb high energy surges without being damaged. Its radial leaded package facilitates easy mounting on printed circuit boards. The specific voltage rating for the R454005-5A is determined by the number '400' in the part number, indicating approximately 400V. It is important to consult the Littelfuse datasheet for the exact clamping voltage, surge current ratings, and other electrical characteristics. The '5A' suffix likely refers to a specific surge current rating or other performance parameter, which also requires referencing the datasheet for confirmation.

Littelfuse varistors are known for their reliability and performance in protecting electronic circuits from transient voltage events. The R454005-5A offers a cost-effective solution for enhancing the robustness of electronic designs. Proper selection of the varistor is crucial to ensure adequate protection without affecting normal circuit operation. Design engineers should consider the expected surge environment, the sensitivity of the protected components, and the varistor's clamping voltage characteristics when choosing a suitable device. The device is suitable for applications where space is constrained, and its robust design ensures a long operational life.