0438.250WRA footprint, schematic symbol and 3D model by LITTELFUSE

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0438.250WRA Details

The recommended mounting torque is 8-10 in-lbs (0.9-1.1 Nm) for the 0438.250WRA.
While the 0438.250WRA is rated for operation up to 125°C, it's recommended to derate the fuse's current rating by 2.5% for every 10°C above 85°C to ensure reliable operation.
To prevent damage, use a soldering iron with a temperature below 260°C (500°F) and avoid applying excessive force or bending during rework. Follow standard soldering and rework procedures for surface-mount devices.
Store the 0438.250WRA in a dry, cool place, away from direct sunlight and moisture. The recommended storage temperature range is -20°C to 40°C (-4°F to 104°F).
While the 0438.250WRA is designed to withstand normal vibration, it's recommended to secure the fuse to the PCB using a suitable adhesive or mechanical fastening to prevent movement and ensure reliable operation in high-vibration environments.

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