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The TDK B82793C0105N265 is a common mode choke (CMC) designed to filter out high-frequency noise from differential signals. It is typically used in power supply applications, signal lines, and communication circuits to suppress electromagnetic interference (EMI). Common mode chokes are crucial in maintaining signal integrity and compliance with electromagnetic compatibility (EMC) regulations. Functions - Noise Suppression: The primary function of the B82793C0105N265 is to reduce common mode noise in electronic circuits. - Differential Signaling Support: It allows differential signals to pass while attenuating the common mode noise. - EMI Mitigation: Helps in improving the overall EMI performance of the device/system where it is integrated. Applications - Power Supply Filters: Commonly used in DC-DC converters and power supply circuits to prevent noise from entering or leaving the power supply. - Telecommunications Equipment: Employed in various communication systems to ensure signal clarity and integrity. - Consumer Electronics: Integrated into devices such as televisions, audio equipment, and computers to suppress EMI. - Automotive Applications: Used in electric vehicle charging systems and automotive electronics to minimize interference. Alternative Parts When considering alternatives to the TDK B82793C0105N265, look for similar common mode chokes that may have comparable inductance, current rating, and EMI performance. Examples of alternative parts include: - Murata P/N LQH3NPF: A common mode choke with similar specifications. - Vishay P/N IHLP-2525: A series of inductors that may serve similar applications. - Coilcraft P/N 1008CS-151: Another option with competitive performance characteristics. Embedded Modules Embedded modules that may incorporate the B82793C0105N265 or similar common mode chokes include: - EMI Filtering Modules: Integrated modules combining capacitors and chokes for comprehensive noise filtering. - Power Supply Modules: Specialized power supplies designed with built-in filtering to ensure low noise output. - Communication Interface Boards: Boards designed for data communications that need robust noise filtering capabilities. Related Q&A 1. Q: What is a common mode choke and how does it function in a circuit? A: A common mode choke is an inductor that blocks high-frequency common mode noise while allowing differential signals to pass through. It achieves this by presenting high impedance to unwanted noise signals, effectively filtering out EMI. 2. Q: In what applications would I typically use the TDK B82793C0105N265? A: You would typically use the B82793C0105N265 in applications requiring noise suppression such as power supplies, telecommunications equipment, consumer electronics, and automotive systems. 3. Q: What characteristics should I consider when selecting an alternative part to the B82793C0105N265? A: When selecting an alternative, consider the inductance value, current rating, DC resistance, size, and inductive breakdown voltage, as well as the component's performance in terms of common mode rejection and EMI suppression. 4. Q: How can I determine whether a common mode choke is suitable for my application? A: To determine suitability, assess the choke's specifications against your circuit requirements, including voltage and current ratings, desired frequency response, and the amount of noise suppression needed for your application. 5. Q: What is the impact of not using a common mode choke in an electronic circuit? A: Without a common mode choke, circuits may be more susceptible to high-frequency noise, which can lead to degraded performance, reduced signal integrity, and violations of EMC regulations. This could result in erratic behavior, increased emissions, or system malfunction.