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Fixed Inductors

A fixed inductor is an electromagnetic device that stores energy in a magnetic field, providing an efficient and reliable means of increasing inductance when using an AC power source. Fixed inductors are sometimes referred to as single-use inductors, because they are usually employed in only one application, and their characteristics do not change when they are in use.

1812-821H Application Field and Working Principle

1812-821H is a fixed inductor with a small size and high reliability. It has been developed to match perfectly with sub-miniature push-button switch actuators, providing space savings in applications such as medical device, mobile, industrial, automotive, aviation, and electronic projects.

1812-821H features a molded package, allowing for better orientation in PCB boards. Its mounting height and presence of leads make the inductor suitable for automated handling and soldering. The inductor is magnetically shielded with an iron core, reducing radiated noise and data errors caused by external interference from external magnetic fields. The inductor\'s high performance is rated at DCR 0.25 ohms, idle current 1.5A, withstanding temperature up to 125 degrees Celsius, and an inductance of 800CD typical 20%.

The 1812-821H works by converting electrical energy from an AC power source into a magnetic field, which is then stored and released in the form of an AC current. When the current is transformed into a magnetic field, it produces a force that is proportional to the current and can be used to move physical objects, such as actuators or relays. This stored energy can then be released as needed, allowing for a smooth and predictable power supply to electrical systems.

In addition, the 1812-821H features a high current carrying capacity and excellent temperature stability for extended operation. It is ideal for applications requiring high-frequency operation and high energy density, such as relays, magnetic reed switches, linear actuators, vibrators, and more.

The 1812-821H is also designed for improved power handling and a lower total inductance, making it suitable for use in applications such as switching mode power supplies, DC-DC converters, and signal line immunity. Its wide temperature range and exceptional current carrying capacity make it an excellent choice for power signal control.

In summary, the 1812-821H is a highly reliable fixed inductor that is ideal for a variety of applications. Its miniature size and robust design make it well suited for PCB boards, providing space savings while improving inductance and power handling. It can be used in applications such as medical devices, mobile devices, industrial, automotive, aviation, and electronic projects. The 1812-821H provides high reliability and excellent performance, making it a great choice for many applications.

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