Littelfuse TRF250-180 PolySwitch Resettable PPTC Fuse | 180mA Hold / 650mA Trip | 250VAC

Description

The Littelfuse TRF250-180 is a high-reliability resettable PPTC (Polymeric Positive Temperature Coefficient) fuse from the renowned PolySwitch TR series. Engineered for high-voltage protection, this through-hole component is ideal for telecommunications, power supply protection, and general electronic equipment requiring dependable, self-resetting safety in a compact form factor.

Operating as a resettable safety switch, the TRF250-180 automatically transitions to a high-resistance state during overcurrent or overvoltage events. Once the fault is cleared and the circuit is power-cycled, the device resets itself to its original low-resistance state. This feature significantly enhances system uptime and eliminates the need for manual fuse replacements in critical or inaccessible applications.

Key Features

• Resettable Technology: PPTC functionality provides automatic recovery after fault conditions, ensuring continuous system operation and reducing maintenance.
• High-Voltage Protection: Specifically rated for 250VAC, making it suitable for mains-connected or higher-voltage communication and power systems.
• Compact Through-Hole Design: The round 9mm package with standard 5mm lead spacing is ideal for efficient, reliable PCB mounting.
• Wide Operating Range: Designed to maintain consistent performance in temperature extremes ranging from -40°C to +85°C.
• Professional Quality: Manufactured by Littelfuse, ensuring strict quality control and long-term durability in varied industrial and commercial environments.

Package Includes

• 1 x Littelfuse TRF250-180 PolySwitch Resettable PPTC Fuse (180mA, 250VAC)

Technical Specifications