PL8803NL

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Common Mode Chokes refers to a type of transmission element that acts to reduce common mode noise and interference. The PL8803NL is a Common Mode Choke specifically designed to function in a wide range of general applications. It provides stable performance with low EMI and wide frequency operation for these applications. In this article, we will discuss the application fields and working principle of the PL8803NL.

Application Fields

The PL8803NL is a multi-purpose Common Mode Choke suitable for a wide variety of uses in consumer, industrial and automotive applications. The device can be used across a broad range of load currents ranging from 0.3A to 10.0A and is designed to provide a high level of noise shielding.

In consumer applications, the PL8803NL can be used for a variety of printer and camera products designed to output high quality digital images and videos. It can also be used to reduce conducted noise levels in portable electronic devices such as smartphones, tablets and personal digital assistant (PDA) devices. As the device is designed to function at high frequencies, it can be used for a variety of high-speed communication systems.

Industrial applications include high-speed data communications systems, such as transaction terminals and internal Ethernet networks, UPS, motor control, motors and solenoids that are exposed to EMI/RFI noise. In automotive applications, the device can be used in automotive electronic control modules (ECU) and on-board diagnostics systems (OBD).

Working Principle

The PL8803NL is a ferrite-core Common Mode Choke which uses a ferromagnetic core material to provide high levels of noise-shielding. The material used for the core is designed to respond quickly to the EM field around it and create an effective inductor. This device can effectively reject up to 3.2 Amp of common mode current and allows differential mode (normal current) to pass through without reduction.

The device consists of a transformer-like dual-winding structure in which two windings are wound around a central core. Electromagnetic forces will interact with the core to increase the inductance of the device. The inductance is determined by the parameter of the material used for the core, and can be altered to suit the application. In addition, the device has a wide operating temperature range of -40°C to +125°C.

The choke also includes overvoltage protection and a bypass circuit to limit the size of any surge voltage. The overvoltage protection limits the surge voltage to a predetermined level, and the bypass circuit is designed to provide a low impedance connection for differential mode currents, bypassing the inductor thus minimising any voltage drop across the device.

Conclusion

The PL8803NL is a multifunctional common mode choke with a wide range of applications. Its dual winding structure provides a low impedance to differential mode currents and a high impedance to common mode interference. Additionally, its effective inductance can be altered depending on the application. The device also includes overvoltage protection and a bypass circuit to limit surge voltage and maintain a low voltage level.

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