The 16R500GPR is a PolySwitch resettable fuse manufactured by Littelfuse Inc. It's a polymeric positive temperature coefficient (PPTC) device used to protect electronic circuits from overcurrent conditions. Unlike traditional fuses that need to be replaced after tripping, the 16R500GPR resets automatically once the overcurrent condition is removed, making it ideal for applications where continuous operation is crucial.

Applications

• USB Port Protection
• Game Consoles
• Rechargeable Battery Packs
• Power Supplies
• Automotive Electronics

Features

• Resettable Fuse: Automatically resets after the fault condition is removed.
• Polymeric PTC Device: Uses a polymer material that increases resistance with temperature.
• Compact Size: Allows for high-density board layouts.
• Fast Trip Time: Quickly interrupts overcurrent conditions to prevent damage.
• Low Resistance: Minimizes power loss during normal operation.
• RoHS Compliant: Complies with environmental regulations.

Benefits

• Overcurrent Protection: Protects circuits from damage due to excessive current.
• Automatic Resetting: Eliminates the need for manual fuse replacement.
• Increased Reliability: Reduces downtime and maintenance costs.
• Enhanced Safety: Prevents thermal runaway and potential fire hazards.
• Cost-Effective Solution: Offers long-term protection with minimal maintenance.

Additional Details

The 16R500GPR is designed to limit current during fault conditions. When an overcurrent event occurs, the device heats up, causing its resistance to increase dramatically, thereby reducing the current flow to a safe level. Once the fault is cleared and the device cools down, its resistance returns to a low value, allowing normal circuit operation to resume. The 16R500GPR typically comes in a surface-mount package for easy integration into PCB designs.

Key Parameters:

• Hold Current (Ih): 0.5A (500mA)
• Trip Current (It): Typically around 1A
• Maximum Voltage (Vmax): Typically rated at 16V
• Trip Time: Varies depending on the magnitude of the overcurrent
• Operating Temperature: Generally between -40°C to +85°C

Always refer to the official Littelfuse datasheet for the most accurate and up-to-date specifications before using the 16R500GPR in any application.