The 30R400SUU is a fast-acting fuse manufactured by Littelfuse Inc. It's part of the 30R series, designed to protect electronic circuits from overcurrent conditions. Its fast-acting characteristic ensures that the circuit is quickly interrupted in the event of a fault, minimizing potential damage and improving overall system reliability.

Applications:

• Power supplies
• Battery management systems
• Industrial control equipment
• Consumer electronics
• Lighting applications

Features:

• Fast-acting fuse
• Surface Mount Device (SMD)
• High interrupting rating
• Compact size
• RoHS compliant

Benefits:

• Provides rapid overcurrent protection, minimizing potential damage to sensitive components.
• Suitable for automated assembly processes due to its SMD packaging.
• Offers reliable protection against short circuits and other fault conditions.
• Space-saving design for use in compact electronic devices.
• Complies with environmental regulations.

Additional Details:

The 30R400SUU fuse has a current rating of 4.0 Amps and a voltage rating of 300 Volts. As a surface mount device, it's designed for automated assembly using standard pick-and-place equipment and reflow soldering processes. The interrupting rating is a critical parameter, indicating the maximum fault current the fuse can safely interrupt without failing. The datasheet should be consulted for detailed specifications, including the fusing time curve, temperature derating, and other relevant parameters. Proper selection of the fuse based on the application's voltage, current, and environmental conditions is essential for reliable performance. Ensure the operating temperature range is adequate for the intended application environment.