CM1418-02CP

Current:	500mA
Height:	0.028" (0.70mm)
Size / Dimension:	0.067" L x 0.048" W (1.72mm x 1.22mm)
Package / Case:	6-WFBGA, WLCSP
Mounting Type:	Surface Mount
Voltage - Rated:	--
Applications:	Data Lines for Mobile Devices
Operating Temperature:	-40°C ~ 85°C
ESD Protection:	Yes
Values:	L = 3nH, C = 117pF
Series:	Praetorian™
Resistance - Channel (Ohms):	0.28
Attenuation Value:	35dB @ 1GHz
Center / Cutoff Frequency:	22MHz (Cutoff)
Number of Channels:	2
Technology:	LC (Pi)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to CM1418-02CP

CM1418-02CP is a two-mortar, surface-mount EMI/RFI filter designed to filter unwanted electromagnetic interference (EMI) and radio frequency interference (RFI) from electronic circuits. The filters are especially suited for radio, communication, and medical equipment applications. As a modular, reusable, electro-magnetic component, it can be integrated into virtually any system.

Application Field of CM1418-02CP

The CM1418-02CP provides EMI/RFI filtering to protect signals from noise and interference. It is widely used in a wide range of applications that require reliable, low cost, and high-density filtering. It is especially suitable for radio, communication, and medical equipment.CM1418-02CP filter is found in all types of radio devices such as amateur and CB radios as well as on other electronic devices such as computers, laptops, printers, and cell phones. It’s suitable as an emergency FCC compliant replacement part on existing equipment.

Working Principle of CM1418-02CP

The CM1418-02CP filter works on two crucial principles. The first is that the filter attenuates signals that fall into the predetermined frequency range, while the second is that the resistance of the filter network prevents the reflected energy from exiting the device. The filter features two ceramic elements, one of which is an inductive element, the other being capacitive. The inductive and capacitive elements are connected in series in the filter. The combination of inductive and capacitive elements creates a bandpass filter with a well-defined frequency range. This filter attenuates signals that fall within the predetermined frequency range, while allowing signals outside that range to pass through. Moreover, the resistance of the filter network prevents the reflected energy from exiting the device. The resistance blocks the reflected energy from radiating outside the device, reducing EMI emissions and protecting nearby circuits from interference. The CM1418-02CP is also capable of suppressing high frequency harmonics, thereby improving signal quality. This in turn minimizes distortion due to harmonic ripple which can result in smeared and distorted signals.

Conclusion

Overall, the CM1418-02CP EMI/RFI filter is a compact, low-cost filter designed to reduce EMI and RFI. It is suitable for a wide range of applications including radio, communication, and medical equipment. The filter features two ceramic elements with a well-defined frequency range that attenuates interfering signals within the predetermined frequency range, while allowing signals outside the range to pass through. The resistance of the filter also prevents the reflected energy from radiating outside the device, greatly reducing EMI emissions and protecting nearby circuits from interference. Furthermore, the CM1418-02CP is able to suppress high frequency harmonics, resulting in improved signal quality.

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