Bourns provides a recommended PCB layout and land pattern in their application note AN164, which can be found on their website. It's essential to follow these guidelines to ensure proper thermal performance and to prevent mechanical stress on the component.
To select the correct current rating, you need to consider the maximum current required by your load, as well as any potential inrush currents or surge currents. You should also consider the ambient temperature and the desired temperature rise of the component. Bourns provides a current rating selection guide in their application note AN165.
The derating curve for the SRU5018-680Y is provided in the datasheet. It shows how the component's current rating decreases as the ambient temperature increases. You need to consider this derating curve when designing your application, especially if it will operate in high-temperature environments.
The SRU5018-680Y is designed to meet the vibration and shock requirements of IEC 60068-2-6 and IEC 60068-2-27, respectively. However, it's essential to evaluate the specific vibration and shock requirements of your application and ensure that the component is properly secured to the PCB to prevent mechanical stress.
To ensure the reliability and longevity of the SRU5018-680Y, you should follow proper design and assembly guidelines, including using a robust PCB design, ensuring good thermal management, and avoiding electrical overstress. You should also consider implementing overcurrent protection and overvoltage protection in your design.
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