DLP31SN551SL2L Filters

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DC motors and motor-driven systems are used in many applications, such as electric power transmission, robotics, and industrial automation. In order to increase the efficiency and performance of these systems, manufacturers use common mode chokes such as the DLP31SN551SL2L. These chokes provide a low-resistance, highly effective solution for suppressing common mode currents, allowing the system to operate more efficiently.

Overview of Common Mode Chokes

Common mode chokes are designed to block high-frequency, conducted noise, also known as common mode current, between the motors and the drive system. They are used in motor applications to suppress electromagnetic interference (EMI). Common mode chokes are also used in motor and battery systems to increase their immunity to noise and help reduce emissions. These chokes are typically placed between the power source and the motor and act as a filter, allowing only frequencies related to the motor to pass through.

The DLP31SN551SL2L Common Mode Choke

The DLP31SN551SL2L is a low-profile, one-piece, surface-mount common mode choke designed for use in motor-driven applications. It incorporates a ferrite core and two coils to reduce common mode current, allowing the system to operate more efficiently. The design also helps increase the system’s noise immunity, reduce emissions, and improve system performance. The choke is optimized to filter common mode currents between 100 kHz and 1 MHz and has an inductance of 37 µH. It is available in a compact 11.3 x 6.3 mm package and is rated for an operating temperature range of -40°C to +125°C.

Advantages of the DLP31SN551SL2L

The DLP31SN551SL2L offers several advantages compared to other common mode chokes. Its low profile and compact package make it ideal for applications where space is at a premium, such as robotic and automated systems. Its highly efficient design helps reduce emissions, allowing it to meet Class B EMI requirements. The choke also has a wide operating temperature range, making it suitable for use in extreme conditions. Finally, the choke is designed to be robust and highly reliable, giving it a long service life.

Conclusion

Common mode chokes, such as the DLP31SN551SL2L, are essential components in motor-driven systems. They help suppress common mode currents and reduce emissions, allowing the system to operate more efficiently. The DLP31SN551SL2L offers several advantages over other common mode chokes, including a low profile and compact package, a high efficiency design, a wide operating temperature range, and high reliability. For these reasons, it is an excellent choice for applications where space is limited and high performance and reliability are required.

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