news

SMD inductors, belongs to a structural form of inductance, which mainly play the role of choking, decoupling, filtering, coordination, and delay in the circuit. Chip inductors have prolonged the life of many consumer electronic products and improved the abnormal quality of products, and the performance has been invested by many manufacturers. It is not only applied to power supply devices, but also audio equipment, terminal equipment, household appliances and other electronic and electrical products, so that electromagnetic signals are not interfered, and at the same time, it does not actively interfere with signals or electromagnetic radiation emitted by other surrounding equipment.

The packaging methods of SMD power inductors are mainly divided into two packaging methods: four-point packaging and full packaging. Let’s listen to Yite Electronics to explain these two closed methods in detail.

The four-point package method is quite full package as the name suggests. After the core and the magnetic ring are assembled with tolerances, the core is circular when designing the magnetic ring. The combination of these two groups of materials will inevitably produce a gap. The gap must be specially packaged. Material packaging, the HCDRH74 series has small gaps. Generally, the four corners of the packaged square magnetic ring can be used to achieve the difference between the appearance of the four-point package and the full package, so the SMD power inductor of the full package structure is extended.

The so-called full package, in addition to the four-corner package, the distal part of the magnetic core edge must also be packaged, forming a full package structure with a strong overall sense, and the magnetic shielding effect is very different from that of the four-point package, but it is technically increased The process is quite costly. Fully packaged inductors are very popular in the market. Therefore, when choosing cost inputs, many industry players choose four-point packaged chip integral molded inductors. Components are originally built-in objects, and their appearance is not particularly important.