CM1426-06CP Equivalent & Substitute Parts

Part Overview

The CM1426-06CP is a 6-channel RC (Pi) EMI filter manufactured by onsemi, designed for low-pass filtering applications in data line protection for mobile devices. This component features 100 Ohm resistance per channel with 8.5pF capacitance and operates across a temperature range of -40°C to 85°C. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

CM1426-06CP

onsemiIn Stock: 1000263CM1426-06CP Datasheet

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NUF6010MUT2G

onsemiIn Stock: 7015NUF6010MUT2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM1426-06CP is determined by the following critical parameters:

• Filter Technology & Order: Must be RC (Pi) topology, 2nd order low-pass configuration
• Channel Count: Must provide 6 independent filter channels
• Resistance Value: Must maintain 100 Ohm per-channel resistance
• Capacitance Value: Acceptable range determined by frequency response requirements; minor deviations (7pF to 8.5pF) are permissible when cutoff frequency remains within functional specification
• Package Type: Surface mount only; physical dimensions and pin configuration must accommodate PCB layout constraints
• Operating Temperature Range: Must support -40°C to 85°C minimum
• ESD Protection: Must include integrated ESD protection
• Moisture Sensitivity: MSL 1 classification required

The NUF6010MUT2G qualifies as a substitute based on matching filter topology, channel count, resistance value, operating temperature range, and ESD protection. The capacitance variance (7pF vs. 8.5pF) results in a higher cutoff frequency (250MHz vs. 230MHz), which is acceptable for applications requiring equal or greater bandwidth. Package differences (12-UFDFN vs. 15-WFBGA) require PCB redesign consideration.

Parameter Comparison

Engineering Selection Recommendations

The NUF6010MUT2G is the identified substitute for the obsolete CM1426-06CP. Selection of this alternative is supported by the following factors:

Product Status: The CM1426-06CP is obsolete, whereas the NUF6010MUT2G maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance & Certifications: Both components share identical REACH status (REACH Unaffected) and MSL classification (1 - Unlimited). The NUF6010MUT2G carries RoHS3 compliance certification, providing additional regulatory alignment for new designs.

Functional Equivalence: Both components employ identical RC (Pi) filter topology with 6 channels, 100 Ohm per-channel resistance, and -40°C to 85°C operating temperature range. Integrated ESD protection is present in both variants.

Frequency Response Consideration: The capacitance reduction from 8.5pF to 7pF elevates the cutoff frequency from 230MHz to 250MHz. This shift is acceptable for applications where the original 230MHz specification represents a maximum rather than a minimum requirement. Applications requiring strict adherence to the original 230MHz cutoff frequency must conduct signal integrity analysis before substitution.

Package Transition: The shift from 15-WFBGA to 12-UFDFN Exposed Pad requires PCB layout modification. The substitute component is physically smaller, potentially offering space optimization benefits. Pin-to-pin compatibility cannot be assumed; schematic and layout review is mandatory.

Frequently Asked Questions (FAQ)

Q: Can the NUF6010MUT2G be used as a direct pin-for-pin replacement for the CM1426-06CP?

A: No. While both components provide 6-channel RC (Pi) filtering with identical electrical specifications for resistance and operating temperature, the package types differ (15-WFBGA vs. 12-UFDFN Exposed Pad). PCB layout and schematic modifications are required. Pin assignments must be verified against both datasheets before implementation.

Q: What is the impact of the capacitance change from 8.5pF to 7pF?

A: The lower capacitance value in the NUF6010MUT2G results in a higher cutoff frequency (250MHz vs. 230MHz). For applications where 230MHz represents a maximum specification, this shift may be acceptable. For applications requiring the original 230MHz cutoff as a minimum specification, signal integrity analysis is necessary to confirm performance adequacy.

Q: Are both components suitable for mobile device data line applications?

A: Yes. Both the CM1426-06CP and NUF6010MUT2G are specified for data line protection in mobile devices. Both include integrated ESD protection and operate across the required -40°C to 85°C temperature range.

Q: What are the advantages of selecting the NUF6010MUT2G over the obsolete CM1426-06CP?

A: The NUF6010MUT2G is in active production, ensuring supply availability. It carries RoHS3 compliance certification and is available in standard Tape & Reel packaging format. The smaller physical footprint (2.50mm x 1.20mm vs. 2.96mm x 1.33mm) may provide PCB space optimization in new designs.

Q: Are there any compliance or regulatory differences between these components?

A: Both components share identical REACH status (REACH Unaffected) and MSL classification (1 - Unlimited). The NUF6010MUT2G includes RoHS3 compliance certification, which the CM1426-06CP does not specify. For applications subject to RoHS requirements, the NUF6010MUT2G provides explicit compliance documentation.

Q: What packaging formats are available for the NUF6010MUT2G?

A: The NUF6010MUT2G is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The CM1426-06CP packaging format is not specified in available documentation.