The NZF220DFT1G is an EMI filter circuit from ON Semiconductor. It is a two-line filter with a 6V TVS array. This filter is designed to reduce electromagnetic interference (EMI) from devices within a system in order to protect the electronics. The filter is based on an NTC design, which is a topology that combines resistor, capacitor, and inductor elements. These elements form a low-pass filter that can attenuate noise over a wide frequency range. The filter offers a high level of attenuation, low insertion loss, and low leakage for large noise signals. It also has a small footprint with ultra-miniature dimensions, making it suitable for high-density applications. The 6V TVS array helps protect against static electricity and fast transient surges.