The SMD1210-110-13.2V is a surface mount resettable fuse (PPTC - Polymer Positive Temperature Coefficient) manufactured by TECHFUSE. It's designed to protect electronic circuits from overcurrent and overvoltage conditions. The device operates by increasing its resistance significantly when the current exceeds a specified threshold, effectively limiting the current flow and preventing damage to downstream components.

Applications

• USB ports: Protects USB ports from overcurrent caused by faulty devices or short circuits.
• Battery packs: Provides overcurrent protection for rechargeable battery packs in mobile devices and power tools.
• Hard disk drives (HDDs) and solid-state drives (SSDs): Protects sensitive data storage devices from electrical surges.
• Game consoles: Safeguards the power circuitry of gaming consoles from overcurrent and short circuits.
• General electronic equipment: Provides circuit protection in a wide variety of electronic devices.

Features

• Resettable fuse: Automatically resets after the overcurrent condition is removed.
• Surface mount device (SMD): Designed for automated assembly on PCBs.
• Compact size (1210 package): Saves space on the circuit board.
• Fast trip time: Quickly responds to overcurrent events.
• Low resistance: Minimizes voltage drop during normal operation.

Benefits

• Circuit protection: Prevents damage to sensitive electronic components from overcurrent and overvoltage.
• Reduced downtime: Resettable functionality minimizes downtime compared to traditional fuses.
• Improved reliability: Protects against component failure due to electrical stress.
• Cost savings: Eliminates the need to replace fuses after each overcurrent event.
• Safe operation: Prevents fire hazards and other safety risks associated with overcurrent conditions.

Additional Details

The SMD1210-110-13.2V is rated for 1.10 Amps (holding current) and has a trip current that's higher than the hold current. The 13.2V indicates the maximum voltage the device can withstand. PPTC devices work by utilizing a polymer material that undergoes a phase transition when heated by excessive current. The transition dramatically increases the device's resistance, limiting the current. Once the overcurrent condition is removed and the device cools down, the polymer returns to its original state, and the resistance returns to a low value. It is imperative to refer to the TECHFUSE datasheet for the SMD1210-110-13.2V for complete specifications, including holding current, trip current, trip time, maximum voltage, and operating temperature range.