PMC1806-101

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Ferrite Beads and Chips: PMC1806-101 Application Field and Working Principle

Pulse and Motion Control (PMC) designed 1806-101 ferrite bead and chips are specifically used in electronic systems to counter the harmful interference caused by RF fields. These devices are designed for small, low-voltage and current applications such as cellular phones, laptops, personal computers, and other communication and digital consumer electronic products.

Ferrite beads are made from a very polar material, called a ferrite material, that contains iron and other elements, such as zinc, nickel, or cobalt. They are small, cylindrical components that are usually made of ceramic and can be found in a variety of shapes and sizes. One of the advantages of ferrite beads is that they can block out specific frequencies of electromagnetic interference (EMI) to ensure smooth operation of the electronics in its vicinity.

Ferrite beads are typically attached to long cables to reduce their length so that the interference they absorb is more concentrated. Alternatively, ferrite beads can be embedded in the conductors of a circuit board, or in the center of a connector, to block out EMI.

PMC1806-101 ferrite beads and chips are designed primarily for high-frequency applications and boast surface mount technology (SMT) capability. The ferrite beads offer high current rating to 0.1A, low DCR, high impedance, and a wide frequency range of 8.2GHz - 46GHz. Further, the 1806-101 can handle pressures of up to 8 psi and feature a shielding factor of 30dB. The ability to reduce EMI allows for greater reliability in data transfer and communication transmissions.

The operating principle of ferrite beads and chips is relatively simple. The resistance of a ferrite bead is based on its hysteresis loop, which is a closed path that the current must traverse in order to pass through the bead. This path causes resistance since it is made of ferrite material, which has a much higher resistance than the copper wires used to generate the current. As the current passes through the ferrite bead, it creates an electromagnetic field which, in turn, absorbs any foreign electromagnetic fields, thereby blocking out interference.

Additionally, the device’s body allows both heat and noise to be dissipated and that helps make them suitable to be used in power supplies in applications such as automobiles or medical equipment. Typically, these devices are used to protect voltage spikes that may cause harm to the chip or cause instability to the overall system.

To summarize, PMC1806-101 ferrite beads and chips have specific applications in the electronic industry in order to counter the interference caused by RF fields. Their operating principle is based on hysteresis loops, which make it possible for the beads to absorb unwanted electromagnetic fields. The ability to reduce EMI in small devices has proven to be a reliable solution for communication and digital consumer electronic products.

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