Littelfuse L25S003 Semiconductor Fuse 3A 250V Very Fast-Acting

The L25S Series from Littelfuse represents a high-performance solution designed to ensure reliable interruption for overcurrents, capable of handling interruptions up to an impressive 200,000 amperes. This model, with its fast-acting characteristics, is ideal for applications requiring rapid response to overcurrent events, thus safeguarding sensitive electronic components. Recognized by Underwriters Laboratories, it is suitable for use as supplementary protection in UL listed equipment, making it a preferred choice for manufacturers looking to meet current and future system requirements efficiently. With a peak let-through current that is exceptionally low, this fuse is tailored to meet the stringent demands of semiconductor applications, providing both safety and efficiency in operations.

• High interrupting rating up to 200,000 amperes AC and 20,000 amperes DC
• Very fast-acting for rapid overcurrent response
• Exceptionally low peak let-through current protects semiconductors
• UL Recognized for supplementary protection in UL listed equipment
• Melamine body with silver-plated copper alloy caps for reliable performance
• Wide operating temperature range from -55 °C to +125 °C
• RoHS compliant for environmental safety
• Traditional North American bolted style mounting for direct bus-bar or stud installation
• Suitable for fixed installations in power converters, UPS, battery chargers, and soft starters

• Voltage: 250 V AC, 250 V DC
• Amperage: 3 A
• Interrupting Rating: 20 kA @ 250 V DC, 200 kA AC
• Time Constant: 10 ms
• Opening Type: Very Fast-Acting (FF)
• Material: Melamine body, Copper Alloy (Silver Plated) caps
• Operating Temperature: -55 °C to +125 °C
• Storage Temperature: Up to 35 °C, <65% RH
• Compliance: RoHS Compliant
• Country of Origin: Mexico

Datasheets

RoHS Declaration

Certification

ICP Test Report