Littelfuse 0.4 A Resettable Fuse 240V dc Radial Lead LVR040K

Littelfuse LVR040K is a high-quality resettable fuse designed for overcurrent and overtemperature protection in electrical and electronic circuits, rated at 240V dc and 0.4 A hold current.

This radial lead Polymer Positive Temperature Coefficient (PPTC) device rapidly switches from a low-resistance state to a very-high resistance state during faults, preventing damage to components and circuits.

The fuse features a fast time-to-trip of 24 seconds and low power dissipation of 2W, making it suitable for medical equipment, motors, fans, security systems, transformers, computer peripherals, and other sensitive electronics.

Dimensions are compact at 11.5 mm in length, 3.8 mm in width, and 20.9 mm in height, facilitating easy PCB integration. Operating temperature ranges from -40°C to 60°C, supporting applications in varied environmental conditions.

Littelfuse LVR series meets stringent approvals including RoHS, CSA, TUV, and UL ensuring compliance with safety and environmental standards. Rated voltage of 240V dc suitable for line voltage applications. Current hold rating of 0.4 A and trip current of 900 mA.

Fast time-to-trip of 24 seconds for reliable fault protection. Compact size with radial lead orientation for easy assembly. Maintenance-free operation with automatic reset capability. Low resistance range from 0.6Ω minimum to 1.9Ω maximum.

Wide operating temperature from -40°C to 60°C. Power dissipation of 2 watts for energy efficiency. Approved by RoHS, CSA, TUV, and UL standards. This resettable fuse is ideal for industrial, medical, commercial, and electronic applications where circuit protection and reliability are critical.

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