There was a question about whether the chip inductor can replace the I-shaped inductor, and this article will share with you a case of replacing the I-shaped inductor with the chip inductor that the Gujing technology department is doing.
This is a project case that our technical department is doing, the detailed alternative has been confirmed, and the sample has been sent to the customer for board testing. The test results will also be fed back to the technical department in the next few days, and based on the technical department's many years of experience, this alternative will certainly meet the customer's current application needs.
The customer is engaged in the field of instrument manufacturing, and the product is 4G electricity meter. Previously, it had been used as an I-shaped inductor product. It is necessary to change to chip inductor, mainly due to two reasons: first, product iteration and upgrading, there is a new demand for inductors; Second, from the perspective of production costs, it is necessary to further reduce production and manufacturing costs. The customer used a 0608 package I-shaped inductor for the product, but after switching to a chip inductor, the CD54 chip inductor was tested, but the package specifications were not suitable. Later, I tried the KINPRO 4018 package chip inductor and found that the current could not meet the use requirements.
After detailed communication with the customer, the technical department made it clear that the specific needs of the customer are that the current output is required to reach 2A (4V 2A), and the inductor height is required to be about 3mm. According to the customer's needs, the technical department preliminarily matched the CNR and 4030 chip inductors in three packages. After further analysis and confirmation, it was confirmed that the current I-shaped inductors would be replaced by SMD inductors in the CNR4020 package.
The technical department has encapsulated the CNR4020 with 4 inductorsSamples of 7UH, 10UH, and 33UH were sent to customers for testing. Based on the test results, the final alternative will be confirmed.