3-139-133 footprint, schematic symbol and 3D model by SCHURTER

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3-139-133 Details

Schurter recommends a PCB layout with a minimum of 2mm clearance around the fuse body to ensure proper heat dissipation and to prevent electrical interference. Additionally, the fuse should be placed on a thick copper layer (at least 35μm) to reduce thermal resistance.
Yes, the 3-139-133 fuse is designed to withstand high-vibration environments. Schurter tests their fuses according to IEC 60068-2-6, which includes vibration testing. However, it's essential to ensure proper PCB mounting and secure the fuse to the board to prevent damage or dislodging.
The 3-139-133 fuse is rated for operation up to 125°C. However, its melting point is around 180°C. In high-temperature environments, the fuse's melting point may be affected, and its performance may degrade. It's crucial to consider derating the fuse's current rating according to the ambient temperature to ensure reliable operation.
Yes, the 3-139-133 fuse is designed to handle high inrush currents. Schurter's fuses have a high melting integral, which allows them to withstand brief, high-current surges. However, it's essential to consider the fuse's I²t rating and ensure it can handle the expected inrush current of the application.
Yes, the 3-139-133 fuse is compatible with lead-free soldering processes. Schurter's fuses are designed to meet the requirements of RoHS and WEEE directives, and they can withstand the higher temperatures associated with lead-free soldering.

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