CM1636-04DE

Overview

The CM1636-04DE is a 4-channel EMI filter array with integrated ESD protection, manufactured by onsemi. It utilizes an RC (Pi) filter topology to suppress electromagnetic interference in high-speed data lines. The device features a capacitance of 15 pF and operates within a frequency range of 800 MHz to 2.7 GHz. It provides attenuation of 30 dB and has a cutoff frequency of 350 MHz. Packaged in an 8-UFDFN Exposed Pad (WDFN-8) surface-mount package measuring 2 mm x 2 mm with a height of 0.8 mm, it supports operating temperatures from -40°C to +85°C.

Feature Summary

• Integrates four channels of EMI filtering with electrostatic discharge protection for comprehensive signal line safeguarding.
• Employs an RC Pi-filter network architecture to effectively attenuate high-frequency noise across specified bandwidths.
• Utilizes a compact WDFN-8 surface-mount package designed for space-constrained mobile and portable electronic applications.

Applications

• Electrostatic discharge and EMI protection for wireless handset data lines
• Signal integrity enhancement in mobile communication devices
• High-speed interface protection in consumer electronics

Procurement Notes

Verify component status as the CM1636-04DE is listed as obsolete or no longer manufactured by onsemi. Confirm availability through authorized distributors or secondary market suppliers. Ensure compatibility with existing PCB footprints and design specifications before procurement. Check for alternative replacement components if long-term supply assurance is required for production cycles.

Selection Notes

Select this component for designs requiring integrated EMI filtering and ESD protection in a minimal footprint. The RC Pi-filter structure suits high-speed data lines where signal integrity is critical. Consider the 8-UFDFN package dimensions for board space optimization. Evaluate thermal performance within the -40°C to +85°C operating range against application requirements.

Part Context

The CM1636 series belongs to onsemi's portfolio of EMI filter circuits designed for protecting sensitive data interfaces. These components address the increasing need for signal integrity and robustness in mobile devices against environmental noise and static discharge events. The CM1636-04DE specifically offers a quad-channel solution within a single compact package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is obsolete, consult onsemi technical support or authorized distributors for current equivalent recommendations based on specific electrical and mechanical constraints.