CDR63BNP-680LC

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Fixed inductors are inductor components used to store electrical energy in a magnetic field. They are typically characterized by their inductance, defined as the ratio of magnetic flux to the current driving it, and their core material. The CDR63BNP-680LC is a type of fixed inductor used in several areas, including power supplies, switching power supplies, and consumer electronics. Below we discuss the application field and working principle for CDR63BNP-680LC.

Application Field

The CDR63BNP-680LC is a Class-2 JIS Grade 3 rated surface-mount fixed inductor featuring an inductance of 680nH, a current rating of 800mA, and an operating temperature range of –45°C to +125°C. It is largely used in LED lighting products and displays, game consoles, portable media players, and power supplies. With a high current density of 4.9A/mm² and a low current leakage, the CDR63BNP-680LC is highly reliable and provides excellent electrical characteristics for various applications.

The CDR63BNP-680LC is also used in power-conversion or point-of-load (POL) applications like:

• High Frequency DC/DC converters
• DC/DC power converters
• Motor control systems
• Battery chargers
• Portable electronics

Working Principle

The working principle of the CDR63BNP-680LC remains the same for the majority of fixed inductors. The core is made of ferrite material, which stores and builds the magnetic field to induct current. When current is supplied to the inductor, the electromagnetic field builds up around the core, and the user obtains the desired inductance by selecting the ferrite core geometry, material, size, winding count, and number of turns. Upon the removal of current, the core dissipates the energy it stores, and the magnetic field around the core starts to collapse. The collapsing magnetic field induces a magnetic flux in the core as well as in the inductor windings, which in turn induce a voltage in the windings until the field state returns to a zero.

Due to the ability of the CDR63BNP-680LC fixed inductor to withstand high temperatures and current ratings, the inductor can store greater magnetic energy than other components in the system, thus providing higher efficiency. Moreover, its low leakage current and its high accuracy makes it suitable for power conversion applications. Additionally, the low DCR and fast saturation recovery features make it easier to design with.

In conclusion, the CDR63BNP-680LC is a fixed inductor used in a variety of power conversion and point-of-load applications such as DC/DC converters and motor controllers. It has high-efficiency and excellent electrical characteristics, which makes it suitable for LED lighting, displays, gaming consoles, media players, and other portable electronics. Its working principle is simple: when current is supplied to the inductor, the electromagnetic field builds up around the core, and when the current is removed, the energy stored in the ferrite core is dissipated.

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