FN7661-16-M4

Overview

The FN7661-16-M4 is a third-order LC (Pi) low-pass EMI feedthrough filter manufactured by TE Connectivity Schaffner. It features an axial threaded terminal package designed for bulkhead or panel mounting. The component has a rated voltage of 130V and supports a maximum current of 16A. Internal circuit parameters include an inductance of 70nH and a capacitance of 0.1µF, with a channel resistance of 0.0007 ohms. Operating temperatures range from -40°C to 100°C.

Feature Summary

• Third-order LC Pi topology provides high attenuation performance for electromagnetic interference suppression.
• Axial threaded terminal design enables secure mechanical installation via bolt mounting.
• Capacitive feedthrough construction ensures effective filtering for single-channel applications.

Applications

• Mobile device data lines
• Computer server systems
• Medical equipment

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm terminal configuration and mounting style. Ensure the selected variant matches the required voltage and current ratings for the target application. Confirm RoHS compliance status and manufacturing origin if regulatory adherence is mandatory for the project.

Selection Notes

Select this component when high-density EMI filtering is required for single-phase DC or low-frequency AC circuits. The 16A current rating and compact axial form factor make it suitable for space-constrained installations where robust mechanical mounting is necessary. Evaluate thermal dissipation requirements within the specified operating temperature range.

Part Context

This part belongs to the FN766X series of EMI feedthrough filters produced by TE Connectivity Schaffner. The series utilizes capacitive feedthrough technology to achieve superior high-frequency noise suppression compared to traditional inductive filters. These components are engineered for reliability in demanding industrial and commercial environments.

Replacement Considerations

Cross-reference with other parts in the FN7661 series that share identical electrical specifications but differ in current handling or physical dimensions. Verify compatibility with existing panel cutouts and thread standards before substitution.

FAQ

What is the internal circuit topology of the FN7661-16-M4?

It utilizes a third-order LC (Pi) low-pass filter topology.

How is the FN7661-16-M4 mechanically mounted?

It uses an axial threaded terminal design intended for bolt or bulkhead mounting.