Bourns provides a recommended PCB layout and land pattern in their application note AN204, which can be found on their website. It's essential to follow these guidelines to ensure optimal performance, minimize parasitic inductance, and reduce electromagnetic interference (EMI).
To handle the high current rating of the CAT16-4991F4LF, ensure that your PCB traces and vias can handle the high current density. Use thick copper traces (at least 2 oz) and consider using multiple vias to reduce the current density. Additionally, ensure that your design can dissipate the heat generated by the inductor's high current operation.
The SRF of the CAT16-4991F4LF is not explicitly stated in the datasheet, but it can be estimated using the inductor's inductance and capacitance values. The SRF is typically above 100 MHz for this inductor. When operating near the SRF, the inductor's impedance increases, which can affect the performance of your design. Ensure that your design takes into account the SRF and its potential impact on your circuit's operation.
When selecting an inductor, consider factors like the operating frequency, current rating, and physical size constraints. The CAT16-4991F4LF is a ferrite-core inductor, which is suitable for high-frequency applications. For low-frequency applications, consider using an iron powder core inductor. Bourns provides a range of inductors with different core materials, sizes, and current ratings, so consult their selection guide or contact their technical support for guidance.
The CAT16-4991F4LF has a maximum operating temperature of 125°C. To ensure reliable operation in high-temperature environments, ensure that your design provides adequate heat dissipation and consider using thermal interfaces or heat sinks if necessary. Additionally, derate the inductor's current rating according to the temperature derating curve provided in the datasheet.
Trust Checks
This model has been provided by an expert contributor.
Expert Contribution
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
CAT16-4991F4LF Overview
Use the download button to access the CAT16-4991F4LF schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like CAT16,
or try a keyword search, such as Array/Network Resistors
