The SMD0805-035-16V is a surface mount resettable fuse (PPTC) manufactured by TECHFUSE. It's designed to protect electronic circuits from overcurrent conditions. This device is commonly used in a variety of applications to prevent damage from short circuits or excessive current draw.

Applications

• USB ports: Protecting USB ports and connected devices from overcurrent.
• Mobile phones: Protecting battery charging circuits and other sensitive components.
• Laptop computers: Protecting internal circuits from short circuits and overloads.
• Gaming consoles: Protecting power supplies and internal components.
• Hard drives: Protecting data storage devices from current surges.
• General electronic circuits: Providing overcurrent protection in a wide range of electronic devices.

Features

• Surface mount package (0805): Small size for compact designs.
• Resettable: Automatically resets after the overcurrent condition is removed.
• Low resistance: Minimal impact on circuit performance.
• Fast trip time: Quickly interrupts the current flow in an overcurrent event.
• RoHS compliant: Meets environmental regulations.

Benefits

• Overcurrent protection: Prevents damage to electronic components from excessive current.
• Reduced warranty costs: Minimizes the risk of product returns due to overcurrent failures.
• Improved product safety: Protects users and equipment from hazards associated with electrical overloads.
• Increased product reliability: Enhances the reliability of electronic devices by preventing overcurrent damage.
• Cost-effective protection: Provides a low-cost solution for overcurrent protection.

Additional Details

The SMD0805-035-16V has a holding current of 0.35A and a trip current that depends on the ambient temperature and the magnitude of the overcurrent. The voltage rating is 16V. PPTC devices increase their resistance dramatically when an overcurrent occurs, effectively limiting the current flow. Once 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. Datasheets should be consulted for specific trip time and derating curves for different operating temperatures.