SRF3216-222Y

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Common Mode Chokes are widely used in a variety of applications. This article will focus on the application field and working of SRF3216-222Y. It belongs to a type of Common Mode Chokes, which is a passive device made up of a 2- or 3-part inductor that helps reduce the amount of electromagnetic interference (EMI) in an electrical system. Common Mode Chokes, also known as common-mode filters or chokes, are composed of two identical windings wound over a magnetically-dissipative core, often a ferrite core. The two windings are usually symmetrically arranged and connected in series with the load.

The SRF3216-222Y is a surface-mountable, 3-part, common mode choke. It features an effective SRF > 3216-222Y common mode impedance of 42 ohms at 100 MHz with 2 uH inductance. It has a rated current of 0.9 Amps and a rated voltage of 16.5Vdc. It is equipped with a wide operating temperature range of -55°C to +125°C. The device performs well when it is used in DC/DC switching converter, high speed line transmission, and differential transmission applications.

The working principle of the SRF3216-222Y is that the differential-mode current is blocked and the common-mode current is short-circuited to ground. When the two windings are connected in series with the load, the common mode current is forced to flow through the choke core, and is then absorbed and filtered at the core. The differential mode current is allowed to pass through the choke without interference. The choke also allows the attenuation of radiated EMI. This is done by diverting the noise current away from the line.

SRF3216-222Y has many advantages and can be applied in different fields. It is well-suited to applications such as telecommunications, industrial control systems, computer systems, consumer applications, and personal electronics. It is also used in various high-speed data transmission systems such as Gigabit Ethernet, Fibre Channel, and HDBaseT. It can even be used to attenuate EMI or RFI in high-speed data lines, digital audio lines, and in digital communication.

In summary, SRF3216-222Y is a 3-part Common Mode Choke which is suitable for filtering and attenuating EMI or RFI to reduce the amount of interference in an electrical system. It is widely used in many applications such as high-speed data transmission, digital communication, digital audio lines, and in telecommunications. Finally, its effective SRF > 3216-222Y common mode impedance of 42 ohms at 100 MHz makes it an ideal choice for applications needing low common-mode noise.

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