NZF220DFT1G

Overview

The NZF220DFT1G is a dual-channel RC Pi-type low-pass EMI/RFI filter and ESD protection device manufactured by onsemi. It integrates two independent filtering paths within a compact SC-88A surface-mount package. Key electrical parameters include a resistance of 110 Ohms per channel, a diode capacitance range of 7 to 10 pF, and a Zener/resistor line capacitance of 22 ±20% pF. The device features a maximum leakage current of 1 μA for the Zener diode and a breakdown voltage between 6 and 8 V. It operates within a temperature range of -40°C to 85°C.

Feature Summary

• Dual bidirectional Pi-type low-pass filter design effectively suppresses electromagnetic interference (EMI) and radio frequency interference (RFI).
• Provides robust electrostatic discharge (ESD) protection compliant with IEC61000-4-2 standards.
• Compact SC-88A package minimizes parasitic inductance for improved high-frequency filtering performance.

Applications

• High-speed data lines requiring EMI suppression and signal integrity preservation
• USB interfaces needing integrated ESD protection and noise filtering
• Portable electronic devices with limited board space for passive components

Procurement Notes

Verify the specific suffix 'DFT1G' against official onsemi documentation to confirm the exact tape-and-reel packaging configuration and RoHS compliance status. Ensure the SC-88A footprint matches your PCB layout requirements. Cross-reference the manufacturer's latest datasheet for any updates on recommended soldering profiles or storage conditions prior to procurement.

Selection Notes

Select this component when dual-channel filtering and ESD protection are required in a single small-footprint package. The 110 Ohm resistance value is suitable for impedance matching in certain high-speed digital interfaces. Consider the 7-10 pF diode capacitance impact on signal bandwidth. This device is appropriate for applications where board real estate is constrained but robust noise immunity and static protection are critical.

Part Context

This component belongs to onsemi's portfolio of integrated passive devices designed for signal conditioning and protection. It combines filtering and clamping functions into one unit, replacing discrete resistors, capacitors, and TVS diodes. The SC-88A package allows for automated assembly in high-volume manufacturing environments typical for consumer electronics and industrial control systems.

Replacement Considerations

Check for SNZF220DFT1G if automotive AEC-Q101 qualification is required. Verify pinout compatibility before substituting with other SC-88A EMI filters from different manufacturers.

FAQ

What is the cutoff frequency characteristic of the NZF220DFT1G?

The device is designed as a second-order low-pass filter with a nominal cutoff frequency around 220 MHz, effectively attenuating high-frequency noise above this range.

Does the NZF220DFT1G provide overvoltage protection?

Yes, it includes an integrated Zener diode with a breakdown voltage of 6-8 V, providing voltage clamping protection against transient overvoltages alongside ESD events.