SRF2012A-261YA

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SRF2012A-261YA application field and working principle are related to common mode chokes. Common mode chokes are electronic components used to reduce electromagnetic interference (EMI) or radio frequency interference (RFI) by blocking high voltages and current while allowing lower-level currents to pass without dampening them. Common mode chokes reduce radiated EMI and RFI noise, allowing systems to meet electromagnetic compatibility (EMC) requirements. They are especially effective in systems with pulse-type electrical loads, such as motors, AC and DC power supplies, switches, relays, solenoids, and other circuits that generate EMI spikes. Common mode chokes are used in various electrical and electronics applications such as power supplies, data communication and networking systems, displays, servo systems, telecommunications, and consumer electronics.

SRF2012A-261YA common mode chokes are high quality ferrite core components specifically designed for EMI suppression applications. The SRF2012A-261YA consists of two optimized impedance toroids, each of which have nine turns of wire on each core. The chokes have a very low resistance range, from 50 Ohms to 500 Ohms, and a very high inductance range, from 0.15 mH to 3.0 mH, to effectively provide common-mode EMI suppression. This product also has a very high quality and consistency. Its temperature coefficient is ±20 PPM/°C, which means that it can maintain its performance over extreme temperatures. The SRF2012A-261YA also has an excellent frequency response, up to 4GHz and 30MHz bandwidth, and is highly reliable, with a lifetime of 2000 hours in the temperature range of -55°C to +125°C, and at a current flow of 500mA.

In terms of working principle, SRF2012A-261YA common mode choke components operate by drawing energy from alternating current, using the energy to create an electromagnetic field. When a high voltage current passes through the choke, the inductor’s magnetic field restricts its current flow, diverting its current to different terminals. This allows for the low-voltage AC current to pass through the choke unimpeded, while the high-voltage AC current is reduced. This action also reduces the overall EMI and RFI noise from the system, allowing it to meet EMC requirements. By reducing the amount of EMI/RFI generated, the system can operate more efficiently, with less interference with other systems.

In conclusion, SRF2012A-261YA common mode chokes are an excellent choice for EMI or RFI suppression in a variety of electronics applications. They provide a high quality, robust design, with a wide range of inductance and resistance values, excellent frequency response, and a highly reliable lifetime. The working principle is based on the magnetic field created by an inductor, which effectively reduces high-voltage AC current while allowing low-voltage AC current to pass unimpeded. By doing so, these components reduce EMI/RFI noise, allowing systems to meet EMC requirements.

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