EXC-CET101U

Overview

The Panasonic EXC-CET101U is a surface-mount EMI filter circuit designed for high-frequency noise suppression. It features a capacitance of 100pF and supports a maximum rated current of 2A. The component operates with a voltage rating of 50V and provides an attenuation value of 25dB within the 300MHz to 450MHz frequency range. Its cutoff frequency is specified at 135MHz, making it suitable for compact electronic designs requiring efficient signal integrity maintenance.

Feature Summary

• Provides effective electromagnetic interference suppression through integrated LC network topology
• Supports high current handling capabilities up to 2A for robust data line protection
• Engineered for wide-range capacitance options to address various noise frequencies

Applications

• Data lines for mobile devices
• High-speed digital signal interfaces
• Portable consumer electronics

Procurement Notes

Verify the specific suffix 'U' against official Panasonic documentation to confirm package type and tape/reel specifications. Confirm lifecycle status as obsolete before finalizing design-in decisions. Ensure compatibility with existing PCB footprint requirements and soldering profiles. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing circuits requiring 100pF filtering at 50V with 2A current capacity. Consider the 135MHz cutoff frequency for appropriate noise bandwidth management. Evaluate space constraints as this is a surface-mount device. Compare attenuation performance against alternative filters if operating frequencies exceed 450MHz.

Part Context

This component belongs to the EXC-CET series of chip EMI filters from Panasonic Electronic Components. The series offers multiple capacitance values tailored for different noise frequencies. These filters are commonly used in portable electronics to maintain signal quality while reducing electromagnetic interference in compact form factors.

Replacement Considerations

Check Panasonic's official substitution guide for equivalent parts within the EXC-CET family. Verify that any substitute maintains the same 100pF capacitance and 2A current rating. Ensure physical dimensions and pin configurations match the original design to prevent PCB rework.