The RHEF1000S-DE is a PolySwitch resettable device from TE Connectivity. It is designed to protect electronic circuits from overcurrent conditions. This polymeric positive temperature coefficient (PPTC) device acts like a resistor that increases rapidly in resistance when its trip current is exceeded, thus limiting the fault current.

Applications

• Overcurrent protection in USB ports
• Protection of power supplies
• Speaker protection
• Game console port protection
• General electronic equipment protection

Features

• Resettable overcurrent protection: Eliminates the need for manual replacement of fuses.
• Compact size: Allows for use in space-constrained applications.
• Low resistance: Minimizes power loss during normal operation.
• Fast trip time: Quickly responds to overcurrent events.
• RoHS compliant: Complies with environmental regulations.

Benefits

• Enhanced circuit protection: Prevents damage to sensitive electronic components.
• Reduced downtime: Resettable functionality minimizes disruptions caused by overcurrent events.
• Lower maintenance costs: Eliminates the need for fuse replacement.
• Improved product reliability: Protects against transient overcurrent conditions.
• Safe operation: Protects against fire hazards caused by overcurrent.

Additional Details

The RHEF1000S-DE has a hold current of 1A and a trip current of 2A. Its maximum voltage rating is 30V. The device operates over a temperature range of -40°C to +85°C. This PolySwitch device is commonly used in various consumer electronics, industrial equipment, and automotive applications to ensure reliable and safe operation. It's crucial to consult the manufacturer's datasheet for specific performance characteristics and application guidelines. The device's construction enables it to automatically reset after the overcurrent condition is removed and the device cools down to a safe operating temperature.