EMI1206R-1500

Ferrite Beads and Chips

The EMI1206R-1500 is a ferrite bead and chip which is specifically designed to perform the task of suppressing power supply noise and common mode noise in high frequency switched power supplies. It is a combination of a ferrite bead and a Schottky diode in a single package.

Application Field

The EMI1206R-1500 is mainly used for noise suppression in high frequency switched power supplies, such as AC/DC, USB, and DC/DC converters. These devices are typically used in applications where space is limited, such as laptop computers, mobile devices and automotive infotainment systems.

The EMI1206R-1500 provides both common mode and differential mode noise suppression, which is ideal for suppressing fas transients and ringing on high speed digital circuits. Additionally, the device has a high current handling capability, which makes it suitable for use in power circuits.

Working Principle

The EMI1206R-1500 performs its noise suppression task through a combination of two different components. The ferrite bead provides high frequency noise suppression, while the Schottky diode prevents power supply transients from reaching sensitive circuitry.

The ferrite bead works using the principle of inductive reactance. At high frequencies, this reactance increases significantly, causing energy to be dissipated as heat. This prevents high frequency noise from reaching sensitive circuitry.

The Schottky diode works using the principle of reverse bias blocking. When a transient is present, it causes the diode to become forward biased, allowing the transient to be dissipated before it can reach the circuit.

Conclusion

The EMI1206R-1500 is a ferrite bead and chip designed specifically for high frequency switched power supplies. The combined ferrite bead and Schottky diode provide both common mode and differential mode noise suppression, and has a high current handling capability. The device is useful in applications where space is limited, such as laptop computers and mobile devices.