The recommended footprint and land pattern for the 1N4933 can be found in the Diodes Incorporated's packaging information document or in the IPC-7351 standard. A typical footprint for the 1N4933 is a rectangular pad with a size of 1.5mm x 2.5mm, with a 0.5mm x 0.5mm thermal pad in the center.
To ensure proper soldering and avoid defects, follow the recommended soldering profile and temperature guidelines provided in the datasheet. Use a solder with a melting point below 260°C, and avoid applying excessive heat or force during the soldering process. Inspect the solder joints for defects such as cold joints, solder bridges, or insufficient solder.
The maximum allowable voltage derating for the 1N4933 is typically 80% of the maximum rated voltage. This means that if the maximum rated voltage is 1kV, the derated voltage would be 800V. However, it's recommended to consult the datasheet and application notes for specific derating guidelines.
The 1N4933 is a standard recovery diode and may not be suitable for high-frequency switching applications due to its relatively high reverse recovery time (trr). For high-frequency applications, consider using a fast recovery diode or a Schottky diode with a shorter trr.
To handle ESD protection when working with the 1N4933, follow proper ESD handling procedures such as using an ESD wrist strap, mat, or workstation. Ensure that the device is stored in an ESD-safe environment, and avoid touching the device's pins or leads during handling.
1N4933 datasheet
by Diodes Incorporated
