Bourns provides a recommended PCB layout and land pattern in their application notes. It's essential to follow these guidelines to ensure proper thermal management, minimize parasitic inductance, and optimize performance.
To minimize electromagnetic interference (EMI), keep the inductor at least 5 mm away from sensitive components. You can also use shielding techniques, such as copper tape or mu-metal shielding, to contain the magnetic field.
While the datasheet specifies a maximum rated current, it's essential to consider the voltage across the inductor as well. The maximum allowable voltage is typically 2-3 times the rated voltage. Exceeding this may cause core saturation or even damage the inductor.
To prevent saturation, ensure the inductor's core material is suitable for the application. You can also consider using a larger inductor or one with a higher saturation current rating. Additionally, implementing a current-limiting circuit or using a current sense resistor can help prevent saturation.
The self-resonant frequency is typically not specified in the datasheet. However, it can be estimated using the inductor's inductance and capacitance values. The self-resonant frequency can affect the inductor's impedance and may cause unwanted resonances in your design. You can use simulation tools or consult with a Bourns application engineer to determine the self-resonant frequency and its impact on your design.
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
70AAJ-4-M0G Overview
Use the download button to access the 70AAJ-4-M0G schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like 70AAJ,
or try a keyword search, such as Headers and Edge Type Connectors
