The 0491.315PAR is a time-delay fuse manufactured by Littelfuse. It is designed to protect circuits from sustained overloads, while allowing for brief inrush currents that occur during startup or operation. This fuse is suitable for a wide range of applications where momentary current surges are common, but prolonged overcurrents need to be interrupted to prevent damage.

Applications:

• Power supplies with inrush current
• Electric motors
• Transformers
• Battery chargers
• Lighting circuits

Features:

• Time-delay characteristic
• Compact size
• High interrupting rating
• RoHS compliant
• Through hole mounting

Benefits:

• Provides protection against sustained overloads while avoiding nuisance tripping from transient current surges.
• Saves space on the circuit board.
• Offers reliable protection against high fault currents.
• Complies with environmental regulations.
• Easy to install in through-hole applications.

Additional Details:

The 0491.315PAR has a current rating of 0.315 Amps. The voltage rating is specific to this part and should be obtained from the Littelfuse datasheet. This is a through-hole fuse, meaning it is designed to be mounted through holes in the circuit board. The interrupting rating indicates the maximum fault current that the fuse can safely interrupt. The datasheet will provide detailed information on the fuse's time-current characteristics, temperature derating, and other relevant parameters. Proper selection of the fuse based on the application's voltage, current, and environmental conditions is critical for ensuring reliable operation. Ensure compliance with all applicable safety standards. The operating temperature range should be carefully considered. Proper mounting and soldering techniques should be used to ensure a reliable connection.