The Venkel HPTF0805-RP-1400AT is a surface-mount positive temperature coefficient (PTC) thermistor. These thermistors are designed to protect circuits against overcurrent conditions by increasing their resistance sharply when the current exceeds a predetermined level. The 0805 case size indicates the physical dimensions of the component, making it suitable for automated assembly processes.

Applications

• Overcurrent protection in electronic devices: Including smartphones, tablets, laptops, and other portable electronics.
• USB port protection: Protecting USB ports from overcurrent faults and short circuits.
• Power supply protection: Limiting inrush current and providing overcurrent protection in power supplies.
• Automotive electronics: Protecting sensitive automotive circuits from electrical faults.
• LED lighting: Providing protection for LED drivers and LED arrays.

Features

• Surface-mount design: Enables automated assembly and compact design.
• Positive Temperature Coefficient (PTC): Resistance increases sharply with increasing temperature, providing overcurrent protection.
• 0805 Case Size: Industry-standard size for easy integration into various electronic circuits.
• Fast Trip Time: Quickly responds to overcurrent events, minimizing damage.
• RoHS compliant: Environmentally friendly, adhering to RoHS standards.

Benefits

• Circuit Protection: Provides robust protection against overcurrent faults, preventing damage to sensitive components.
• Compact Size: The 0805 package allows for high-density circuit designs.
• Automatic Reset: Resets automatically after the overcurrent condition is removed, restoring normal operation.
• Improved Reliability: Enhances the reliability and lifespan of electronic devices.
• Cost-Effective: Offers a cost-effective solution for overcurrent protection compared to other protection methods.

Specifications

The HPTF0805-RP-1400AT has a hold current of 1.4A. The trip current will be higher than the hold current, providing a safety margin. The resistance at 25°C is typically low, allowing for normal circuit operation. The trip time depends on the magnitude of the overcurrent, but it is generally very fast, typically in milliseconds. It is important to consult the datasheet for the full electrical and thermal characteristics of the device.