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Fixed Inductors – SRR0804-271K

Fixed inductors, also known as chokes, are passive devices used in a variety of electronic circuits for a number of purposes. Used in combination with resistors or capacitors they create filters helping control frequency response or signal amplitude. SRR0804-271K is one of the products in the family of fixed inductors.

SRR0804-271K Application Field and Working Principle

SRR0804-271K is an iron-based ferrite core inductor with an inductance of 0.27 uH. It is an ideal component for high-frequency applications such as voltage regulator modules, switching power supplies, and notebook adapters. The product number “0804” indicates the size of 8.0 mm x 4.5 mm. SRR stands for shielded radial type construction with short-circuit protection.

The working principle of SRR0804-271K is based on Faraday’s Law of Electromagnetic Induction. As electrical current passes through the SRR0804-271K, a magnetic field is generated in the core. This magnetic field induces a voltage in the coil’s windings which in turn is related to the current flowing. The value of the inductance, 0.27 µH, is determined by the number of turns on the coil, the size of the core, and the type of wire used.

The shielded construction of the SRR0804-271K helps reduce electromagnetic noise over wide frequency ranges. This makes it suitable for high-frequency DC-DC converters, chargers, and converters up to 400 kHz. The short-circuit protection helps protect the device against excessive power dissipation in case of the coil being exposed to higher than normal current.

Applications of SRR0804-271K

The SRR0804-271K can be used in a variety of applications. Its shielding property makes it suitable for use in switching power supplies and voltage regulators where strict noise regulations need to be met. It can also be used in audio and video circuits for filtering harmonics or creating low-pass filters.

The SRR0804-271K can also be used in low-voltage DC-DC conversion circuits. These applications include, but are not limited to, charging ports in laptops, tablets, and mobile phones. The shielded construction ensures that the device would not interfere with other circuit components in such a dense environment.

Benefits of SRR0804-271K

Using an SRR0804-271K inductor has several advantages. The shielded construction reduces EMI interference levels, making it ideal for noise-sensitive applications. The short-circuit protection helps protect the device against damage should it be exposed to higher than average current. The small form factor makes it a great choice for applications where space is at a premium.

In addition, SRR0804-271K is a safe and reliable inductor with a low DC resistance. This ensures high power efficiency and long working life, making it a great choice for power conversion applications. Moreover, the device is RoHS compliant, making it a great choice for applications in which a healthier environment is desired.

Conclusion

The SRR0804-271K is a shielded radial type fixed inductor with a 0.27 µH inductance. It is ideal for high-frequency applications and DC-DC conversion circuits. Its shielded construction helps reduce EMI interference levels, making it suitable for noise-sensitive applications. Its small form factor and low DC resistance make it a great choice for applications where space is at a premium. Moreover, the device is RoHS compliant, making it a great choice for applications in which a healthier environment is desired.

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