NZF220DFT1

Overview

The NZF220DFT1 is a dual-channel EMI/RFI filter with integrated ESD protection, designed for high-frequency noise suppression. It features a bidirectional Pi-type low-pass architecture utilizing Zener diodes and resistors. Key electrical parameters include a nominal cutoff frequency of 220 MHz, diode capacitance ranging from 7 to 10 pF, and Zener/resistor line capacitance of 22 ±20% pF. The device exhibits a maximum leakage current of 1 μA and a Zener breakdown voltage between 6 and 8 V. Packaged in a compact SOT-363 form factor, it minimizes parasitic inductance to enhance filtering performance.

Feature Summary

• Dual EMI/RFI bidirectional Pi-type low-pass filter design
• Integrated electrostatic discharge (ESD) protection compliant with IEC61000-4-2 standards
• Low leakage current for reduced power consumption
• Compact package size minimizing parasitic inductance

Applications

• Electromagnetic interference suppression in sensitive electronic systems
• High-frequency noise filtering for data lines
• RFI noise reduction in portable consumer devices

Procurement Notes

Verify the specific manufacturer datasheet for the NZF220DFT1 to confirm exact pinout configurations and absolute maximum ratings prior to integration. Ensure compatibility with the target PCB footprint, specifically the SOT-363 package dimensions. Cross-reference regulatory compliance requirements against the component's certification status for the intended market application.

Selection Notes

Select this component when dual-channel EMI filtering and ESD protection are required in a minimal footprint. The integrated Pi-filter topology simplifies circuit design by replacing discrete passive components. Consider the 220 MHz cutoff frequency and low capacitance values for high-speed signal integrity applications where space constraints are critical.

Part Context

This device belongs to onsemi's family of Zener diode-based integrated passive device (IPD) filters. These components serve as alternatives to traditional discrete resistor, capacitor, and diode implementations. The technology integrates passive elements into a single package to improve performance and reduce board area compared to standard discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers for the NZF220DFT1 were not identified in the provided documentation. Verify functional equivalence with other IPD EMI filters if direct replacements are necessary.

FAQ

What is the structure of the internal filter?

The NZF220DFT1 utilizes a Zener diode-based Pi-filter structure, functionally equivalent to a resistor/capacitor filter formed by a 100 Ω resistor and two Zener diodes.

Does this component provide ESD protection?

Yes, the device provides integrated ESD protection that is fully compliant with the IEC61000-4-2 standard.