The 2920L100DR is a resettable PPTC (Polymeric Positive Temperature Coefficient) fuse manufactured by Littelfuse. It's designed to protect electronic circuits from overcurrent conditions. These devices act as self-resetting fuses, increasing their resistance significantly when a fault current flows, thus limiting the current and protecting the circuit. Once the fault is removed and power is cycled, the PPTC resets to its low-resistance state and normal operation can resume.

Applications:

• USB Ports: Protection against overcurrent in USB ports of computers, peripherals, and chargers.
• Power Supplies: Overcurrent protection in low-voltage power supplies.
• Battery Packs: Protection of battery packs for mobile phones, laptops, and other portable devices.
• Game Consoles: Protection for I/O ports and power circuitry in gaming consoles.
• General Electronics: Overcurrent protection in a wide range of electronic devices.

Features:

• Resettable: Automatically resets after the overcurrent condition is removed.
• Low Resistance: Offers low resistance during normal operation, minimizing voltage drop.
• Fast Trip Time: Quickly responds to overcurrent events, limiting the duration of the fault current.
• Compact Size: Small form factor allows for use in space-constrained applications.
• RoHS Compliant: Complies with environmental regulations.

Benefits:

• Circuit Protection: Provides reliable overcurrent protection, preventing damage to sensitive electronic components.
• Reduced Downtime: Self-resetting functionality minimizes downtime compared to traditional fuses, which require replacement.
• Cost Savings: Eliminates the need for fuse replacement, reducing maintenance costs.
• Improved Reliability: Enhances the reliability of electronic devices by protecting against overcurrent faults.
• Space Efficiency: Compact size allows for easy integration into various applications.

Specifications:

The specific electrical characteristics (e.g., hold current, trip current, trip time, maximum voltage) vary depending on the specific configuration of the 2920L100DR. Consult the Littelfuse datasheet for the precise values for this specific part number. Typically, a PPTC fuse will have specifications for:

• Ihold: The maximum current the device can withstand without tripping.
• Itrip: The minimum current that will cause the device to trip.
• Vmax: The maximum voltage the device can withstand.
• Imax: The maximum fault current the device can interrupt.
• Pd: Power Dissipation when tripped.

The 2920L100DR is a reliable and cost-effective solution for overcurrent protection in a wide range of electronic applications. Its resettable functionality and compact size make it a popular choice for protecting sensitive circuits.