The picoSMD035F is a surface-mount resettable fuse (PPTC - Polymeric Positive Temperature Coefficient device) manufactured by Tyco Electronics (now TE Connectivity). It's designed to protect electronic circuits from overcurrent conditions. These devices increase in resistance dramatically when a fault current occurs, limiting the current flow and preventing damage to downstream components.

Applications:

• USB port protection in computers and peripherals.
• Mobile phone battery protection.
• Game console port protection.
• Set-top box power input protection.
• Hard drive and solid-state drive (SSD) protection.
• General electronic equipment protection against overcurrent faults.

Features:

• Resettable: Automatically resets after the overcurrent condition is removed and the device cools down.
• Surface Mount Device (SMD): Designed for automated assembly on printed circuit boards.
• Compact Size: Small footprint allows for use in space-constrained applications.
• Fast Trip Time: Quickly limits current flow during an overcurrent event, protecting sensitive components.
• Low Resistance: Minimal impact on circuit performance under normal operating conditions.
• RoHS Compliant: Meets environmental standards for hazardous substance restrictions.

Benefits:

• Circuit Protection: Prevents damage to electronic components from overcurrent conditions.
• Increased Product Reliability: Reduces the risk of field failures due to overcurrent events.
• Simplified Maintenance: Eliminates the need to replace blown fuses, reducing downtime and repair costs.
• Reduced Warranty Costs: Minimizes the likelihood of product returns due to overcurrent damage.
• Space Saving: Small footprint allows for integration in compact devices.
• Cost Effective: Provides a reusable overcurrent protection solution, reducing the need for replacement fuses.

Additional Details:

The picoSMD035F has specific ratings for hold current (the maximum current the device can carry without tripping), trip current (the current at which the device will trip), and voltage. It's crucial to select a PPTC device with appropriate ratings for the intended application. The trip time will vary depending on the magnitude of the overcurrent. The device's resistance increases significantly after tripping, effectively limiting the current flow. Once the fault is removed and the device cools down, its resistance returns to a low value, allowing the circuit to resume normal operation. It is important to consult the datasheet for specific performance characteristics, including trip time curves and resistance values at different temperatures.

The picoSMD035F provides reliable and resettable overcurrent protection for a wide range of electronic devices. Its compact size, fast trip time, and resettable functionality make it a valuable component for enhancing product reliability and reducing warranty costs.