The SMD030L is a Polymeric Positive Temperature Coefficient (PPTC) resettable fuse, designed for surface mounting, manufactured by TE Connectivity. It protects electronic circuits from damage due to overcurrent and short circuit conditions. When an overcurrent condition occurs, the device heats up, causing its resistance to increase sharply, limiting the current flow and protecting the circuit.

Applications

• USB Ports
• Power Supplies
• Portable Electronics
• Disk Drives
• Gaming Consoles
• Battery Packs

Features

• Surface Mount Device: Allows for automated assembly and efficient use of board space.
• Resettable: Automatically returns to a low resistance state after the overcurrent condition is removed and the device cools down.
• Compact Size: Minimizes PCB footprint.
• Solid State: Provides reliable overcurrent protection without the need for replacement.
• Low Profile: Reduces overall height of the assembly.
• RoHS Compliant: Meets environmental standards for hazardous substances.

Benefits

• Protects circuits from overcurrent and short-circuit conditions.
• Eliminates the need to replace fuses after an overcurrent event.
• Increases the reliability of electronic equipment.
• Reduces downtime and maintenance costs.
• Simplifies circuit design.

Additional Details

The SMD030L has a hold current of 0.3A, which is the maximum current the device can carry without tripping. It will trip at a current higher than this hold current (refer to the TE Connectivity datasheet for specific trip current values). The operating voltage is dependent on the specific model; the datasheet should be consulted for that value. This resettable fuse offers a compact solution for overcurrent protection in a wide range of applications. After the fault is cleared and power is removed, the PPTC device cools down and its resistance returns to a low value, allowing the circuit to resume normal operation. Operating temperature range is typically -40°C to +85°C.