SSR21HS-07245

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Common Mode Chokes are a type of electrical device that is used to reduce the common-mode noise in a system.The SSR21HS-07245 is a common-mode choke with ferrite cores, manufactured by SMC Corporation. This common-mode choke is designed to suppress common-mode noise in a range of 10 kHz to 1MHz.

The SSR21HS-07245 common-mode choke is constructed with two identical coils of copper wire that are wound together around a ferrite core. The two coils are connected in a “balun”, a type of transformer which has two windings that are used to electrically separate the different circuits within a system. The balun feature is used to prevent interference from signals on one side of the system from affecting the other side of the system. The two coils are also arranged so that the current flowing through one coil is 180 degrees out of phase with the current flowing through the other coil.

The SSR21HS-07245 is typically used in balanced circuits to reduce common-mode noise. It can also be used in unbalanced circuits to reduce the common-mode noise that may be caused by the ground loop impedance. The choke is highly effective at reducing the noise in the circuit, due to its efficient ferrite core design. The common-mode choke is also designed to minimize the insertion loss in the circuit.

In a balanced system, the SSR21HS-07245 common-mode choke works by creating an impedance imbalance between the two leads on the coil. The impedance imbalance causes the common-mode noise voltage to be reduced, since the common-mode noise is relatively high-frequency. The common-mode choke also works by inducing currents in both the return and the ground paths. This reduces the amount of common-mode voltage that flows through the system, which reduces the amount of noise that reaches the sensitive equipment in the circuit.

In an unbalanced system, the common-mode choke works by presenting a differential impedance on each of the terminals. This effectively creates a ground loop resistance that reduces the common-mode noise. The choke also dampens the large voltage spikes that can occur due to unbalanced circuits.

The SSR21HS-07245 common-mode choke is often used in power supplies, computer systems, and telecommunications equipment. In these applications, the choke helps to reduce the amount of common-mode noise that can interfere with the operation of the system. The choke is also used in automotive applications, such as in vehicle audio systems, to reduce EMI and RFI noise.

Overall, the SSR21HS-07245 common-mode choke is designed to reduce the amount of common-mode noise in a system. The choke works by creating an impedance imbalance between the two leads on the coil, and by also inducing currents in the return and ground paths. The choke is often used in power supplies, computer systems, and telecommunications equipment, as well as automotive applications. The choke helps to reduce the amount of common-mode noise that can interfere with the operation of the system.

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