CM1407-04DE

Overview

The CM1407-04DE is an EMI filter array with integrated ESD protection, manufactured by onsemi. It features a 4-channel RC (Pi) filter configuration within a TDFN-8 surface-mount package measuring 2 mm x 2 mm x 0.8 mm. Key electrical parameters include a capacitance of 7.5 pF and resistance of 240 Ohms per channel. The device operates between -40°C and +85°C, offering attenuation of 25 dB in the 800 MHz to 3 GHz frequency range with a cutoff frequency of 210 MHz.

Feature Summary

• Integrates four independent RC Pi-filter channels for effective electromagnetic interference suppression
• Provides electrostatic discharge protection alongside signal filtering capabilities
• Utilizes a compact TDFN-8 surface-mount package suitable for space-constrained designs

Applications

• Portable electronic devices requiring EMI mitigation
• Data line protection in consumer electronics
• Signal integrity enhancement in high-frequency circuits

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm RoHS compliance status prior to integration. Ensure storage conditions maintain component integrity. Validate pinout compatibility with target PCB layout. Review latest datasheet revisions for any parameter updates or handling instructions specific to this batch.

Selection Notes

Select this component when designing circuits requiring simultaneous EMI filtering and ESD protection for multiple data lines. The 4-channel configuration suits interfaces with four differential or single-ended signals. Consider the 240 Ohm series resistance impact on signal rise times. The TDFN-8 package offers a small footprint compared to discrete solutions. Evaluate thermal performance within the specified operating temperature range.

Part Context

This part belongs to the CM1407 family of EMI filter arrays from onsemi. The family includes variants with different channel counts and package options. These components are designed to replace discrete R-C networks, saving board space and assembly time. They address growing demands for noise reduction in portable and high-speed digital applications.

Replacement Considerations

Check for direct substitutes within the CM1407 series or compatible EMI filter arrays from other manufacturers. Verify matching channel count, package dimensions, and electrical specifications such as capacitance and resistance values. Ensure equivalent ESD protection ratings and frequency response characteristics.