FMBC-R91Q-3012

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Power line filter modules are designed for use in systems to reduce the amount of undesirable electrical signals, such as noise and interference, from entering the system. FMBC-R91Q-3012 is such a module which is increasingly popular in many industry and electronic applications. This article will discuss its application field and working principle.

The FMBC-R91Q-3012 is mainly used to filter common mode noise in long cable runs in audio, video, and multimedia electronic equipment. It features high attenuation, high repetition rate, and low loss, making it an ideal solution in such applications with high speed, low impedance, or reducing group delay. This filter module is a good choice when a high cutoff frequency is required, since it has excellent immunity up to 1.5 MHz.

The FMBC-R91Q-3012 is typically used in power supplies, medical equipment, consumer electronics, communication systems, and other low-noise environments. Its excellent attenuation characteristics enables it to be used on high current and voltage lines, resulting in improved system performance and noise reduction. In applications where large signal spikes can occur, the FMBC-R91Q-3012 is an ideal choice due to its high transient protection capability.

The working principle of the FMBC-R91Q-3012 is based on electromagnetic interference (EMI) suppression. It utilizes an EMI filter network consisting of an inductor, capacitor and resistor. This network creates a low-pass filter by blocking high-frequency noise signals, allowing them to pass through while absorbing other unwanted signals. The capacitor acts as an electrical buffer, which allows the inductor to block unwanted signals while still allowing low-frequency signals to pass through. The resistor is used to reduce the impedance of the network, enabling it to handle higher power levels. The filter network also absorbs power line noise, thereby reducing its effects on the system.

In conclusion, the FMBC-R91Q-3012 is an excellent choice for applications requiring efficient EMI suppression and transient protection. It is widely used in many industries and electronic applications due to its high attenuation, high repetition rate, low loss, and excellent immunity up to 1.5 MHz. Its EMI filter network creates a low-pass filter that blocks high-frequency noise signals, enabling it to effectively reduce the effects of unwanted signals and noise on the system.

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