How to Choose the Right Chip Inductors for SMT Processing?
This article talk about chip inductors. In SMT chip processing, chip inductors mainly play the role of choke, decoupling, filtering, and tuning.
Today, we’ll talk about inductors. Chip inductors are used for a variety of purposes, including
filtering, tuning, decoupling and chokes. Chip inductors come in two types: stacked and winding. How do
you select the right chip inductor for SMT chips processing? Here are a few principles to follow
when selecting chip inductors.
1. The chip inductor’s width should be smaller than that of the inductor. This will
prevent the excessive solder from creating excessive tensile stresses during cooling, and changing the
value of inductance.
2. Most chip inductors on the market are accurate to +-10%. It is important to order
ahead if the accuracy needs to be greater than +-5%.
3. Wave soldering is not possible with all chip inductors. Some can be soldered using
reflow soldering.
4. You cannot repair the chip inductor solely based on its inductance. To ensure the
performance of the chip, you must also know the frequency band that the inductor operates on.
5. Chip inductors have a similar shape and size, but there are no obvious differences.
Do not use the wrong parts or the wrong positions when manually soldering.
6. There are currently three types of chip inductors: high-frequency microwave
inductors. Useful for frequency bands over 1GHz. Second, high-frequency inductors. They are suitable for
resonant and frequency selection circuits. Universal inductors are the third type. In general, they are
suitable for circuits with tens or hundreds of megahertz.
7. The coil diameters of different products vary. Different DC resistances are
available for the same inductance. DC resistance is a major factor in high-frequency circuits.
8. Inductors are also determined by the maximum current that can be passed. This
capacitance indicator is important when the circuit must carry a high current.
9. In DC/DC converters that use power inductors, the inductance of these inductors
directly impacts the state of the circuit. In practice, inductance is often changed by increasing or
reducing the coil.
10. In communication equipment that operates in the 150-900MHz frequency range,
wire-wound inductors is a common choice. Microwave high-frequency inductors are required for circuits
with frequencies above 1GHz.
These are the top 10 considerations for selecting chip inductors when processing SMT chips. The quality
of SMT processing can only be improved by selecting better chip inductors.
