SPD127R-473M footprint, schematic symbol and 3D model by API Delevan

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SPD127R-473M Details

API Delevan recommends following the IPC-7351 standard for land pattern design and PCB layout. A minimum of 20 mils (0.5 mm) clearance around the component is recommended to ensure proper heat dissipation and to prevent electrical noise.
The SPD127R-473M has a polarity marker on the component. The cathode (negative leg) is marked with a band. Ensure the cathode is connected to the correct pin on the PCB to prevent damage or malfunction.
API Delevan recommends derating the voltage by 10-15% to ensure reliable operation and to prevent premature failure. For example, if the maximum rated voltage is 473V, the derated voltage would be around 425-435V.
API Delevan recommends following standard ESD handling procedures, such as using ESD-safe workstations, wrist straps, and packaging materials. Store the components in their original packaging or in ESD-safe containers to prevent damage.
API Delevan recommends following the IPC-J-STD-020 standard for soldering profiles. A typical profile would be: peak temperature 245°C, time above 217°C 20-30 seconds, and a maximum temperature ramp rate of 3°C/second.

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