The FEMTOSMDC016F is a resettable fuse (also known as a Polymeric Positive Temperature Coefficient or PPTC) manufactured by TE Connectivity (formerly Tyco Electronics). These devices are used to protect electronic circuits from overcurrent conditions. Unlike traditional fuses that blow and need to be replaced, PPTC fuses reset automatically once the overcurrent condition is removed and the device cools down.

Applications

• USB port protection
• Battery charging circuits
• Overcurrent protection in electronic devices
• Protection of sensitive electronic components
• Power supply protection

Features

• Resettable overcurrent protection
• Surface mount package
• Fast trip time
• Low resistance
• Compact size

Benefits

• Reduced downtime due to automatic resetting.
• Elimination of fuse replacement costs.
• Enhanced circuit protection against overcurrent events.
• Suitable for automated assembly processes.
• Improved reliability and safety of electronic devices.

Additional Details

The FEMTOSMDC016F has a hold current of 0.16A and a trip current of approximately 0.32A. The voltage rating is typically around 6V to 16V. When an overcurrent condition occurs, the PPTC material heats up, causing its resistance to increase dramatically, limiting the current flow and protecting the circuit. Once the fault is removed and the device cools, the resistance returns to its normal low value, allowing the circuit to resume operation. The surface mount package makes it easy to integrate into automated assembly processes. Refer to the TE Connectivity datasheet for complete specifications, including trip time characteristics, temperature derating, and recommended soldering profiles. Correct soldering is essential for ensuring optimal performance and reliability of the device.