PMH1206-121

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Ferrite beads and chips are widely used in the electronic industry to prevent the interference of unwanted signals in the main signals. One of the most commonly used ones is PMH1206-121 ferrite chip. The details of its application field and working principles are as follows.

Application Field of PMH1206-121

PMH1206-121 ferrite chips are mainly used in the digital high-speed communication industry. With its high-frequency signal interference suppression and signal noise protection function, it effectively reduces the influence of digital high-speed communication cables and antenna cables on the surrounding environment. In addition, it is also suitable for signal line protection in automotive, mobile phone, communication and computing systems.

Working Principle of PMH1206-121

When the signal passes through PMH1206-121 ferrite chips, it will be attenuated by the local electromagnetic induction. At the same time, the connection between the electric wire and the ferrite core can produce an electromagnetic field, thereby blocking the transmission of high-frequency signals that are not beneficial to the shielded cable or the device connected to it.

Before high-frequency signals pass through the ferrite chips, they are more obviously “filtered” by several hundred times of reduction in amplitude. The ferrite core has an electric resistance, which interferes with the flow of high-frequency current. Most ferrite cores also contain magnetic properties that work together to reduce interference. When signals pass through PMH1206-121 ferrite chips, most of the high-frequency noise is suppressed and absorbed by the ferrite core, so that it cannot effectively affect the signals and devices that need shielding.

Impedance

One of the key features of the PMH1206-121 ferrite chip is its high impedance. The impedance can reach up to 6.5 ohms, and it has an effective suppress bandwidth of up to 2GHz. In addition, the core is also very small and uses a miniature chip design. This greatly reduces the wiring space occupied by the ferrite chip, making it ideal for use in high-frequency communication lines and wireless antenna links.

Thermal Resistance

PMH1206-121 ferrite chips have a high thermal resistance (60℃). This means that under normal operating conditions, the chip will not overheat and cause damage when used in high frequency circuits. In addition, the core ensures an excellent signal-to-noise ratio for digital data transmission and receives signals without distortion.

Conclusion

PMH1206-121 ferrite chips are an effective solution for reducing the interference of high-frequency signals in digital communications. With its high impedance, high thermal resistance, and ability to block high-frequency signals, the ferrite chips can effectively improve the stability of the communication lines and reduce the signal noise. Therefore, PMH1206-121 ferrite chips are widely used in various industries such as automotive, mobile phone, communication and computing systems.

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