CM1442-06LP RC (Pi) EMI Filter Equivalent & Substitute Parts

Part Overview

The CM1442-06LP is a 2nd order RC (Pi) EMI filter manufactured by onsemi, designed for low-pass filtering applications in data line protection for mobile devices. This 6-channel filter features 100 Ohm resistances and 15pF capacitances per channel, with a cutoff frequency of 115MHz and 30dB attenuation at 1GHz. The part is currently obsolete, making identification of equivalent substitute components essential for ongoing design support and procurement.

Substiute Parts

CM1442-06LP

onsemiIn Stock: 214433CM1442-06LP Datasheet

Current PartRFQ

CM1442-06CP

onsemiIn Stock: 9124CM1442-06CP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM1442-06LP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Filter type: Low Pass, RC (Pi), 2nd Order
• Number of channels: 6
• Resistance per channel: 100 Ohms
• Capacitance per channel: 15pF
• Cutoff frequency: 115MHz
• ESD protection: Yes
• Operating temperature range: -40°C to 85°C

Mechanical Parameters (Must Match):

• Mounting type: Surface Mount
• Base product number: CM1442
• Overall footprint dimensions: 0.093" L x 0.041" W (2.36mm x 1.05mm)

Allowable Variations:

• Package designation within WLCSP family (15-XFBGA vs. 15-WFBGA)
• Component height (within WLCSP specifications)
• Packaging format (Tape & Reel vs. standard)
• RoHS compliance status
• Attenuation performance at different frequency points (provided cutoff frequency remains 115MHz)

Parameter Comparison

Engineering Selection Recommendations

The CM1442-06CP is a direct electrical and functional equivalent to the CM1442-06LP. Both components share identical filter specifications, electrical performance characteristics, and operating parameters. The primary differences are mechanical and compliance-related:

Height Differential: The CM1442-06CP has a maximum height of 0.028" (0.70mm) compared to the CM1442-06LP at 0.012" (0.30mm). This 0.016" (0.40mm) height increase must be evaluated against PCB layout constraints and assembly clearance requirements.

RoHS Compliance: The CM1442-06CP meets ROHS3 compliance standards, whereas the CM1442-06LP is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the CM1442-06CP is the appropriate selection.

Packaging Format: The CM1442-06CP is supplied in Tape & Reel format, suitable for automated assembly processes. Component selection should align with procurement and manufacturing workflow requirements.

Both parts are obsolete products. Inventory availability should be confirmed with authorized distributors prior to design commitment.

Frequently Asked Questions (FAQ)

Q: Can CM1442-06CP replace CM1442-06LP in existing designs?

A: Yes, provided that the increased component height of 0.028" (0.70mm) does not conflict with PCB layout, assembly clearances, or neighboring component placement. Electrical performance and filtering characteristics are identical.

Q: What is the significance of the package designation change from 15-XFBGA to 15-WFBGA?

A: Both designations refer to WLCSP (Wafer Level Chip Scale Package) variants within the onsemi CM1442 family. The package change reflects manufacturing process updates while maintaining electrical equivalence and identical footprint dimensions of 0.093" L x 0.041" W (2.36mm x 1.05mm).

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance status reflects material composition and manufacturing process adherence to regulatory standards, not electrical or filtering performance. Both parts deliver identical 115MHz cutoff frequency, 30dB attenuation characteristics, and 6-channel RC (Pi) filtering topology.

Q: Are there any frequency response differences between these parts?

A: Both parts maintain the same 115MHz cutoff frequency. The CM1442-06CP specifies attenuation performance across a broader frequency range (800MHz to 6GHz), whereas the CM1442-06LP specifies 30dB attenuation at 1GHz. The cutoff frequency specification remains equivalent.

Q: What is the impact of Tape & Reel packaging on component selection?

A: Tape & Reel packaging is standard for high-volume automated assembly operations. If manual assembly or alternative procurement workflows are required, packaging format compatibility with existing equipment and processes must be confirmed.

Q: Are both parts suitable for data line protection in mobile device applications?

A: Yes. Both CM1442-06LP and CM1442-06CP are specified for data line protection in mobile devices, with identical ESD protection, operating temperature ranges, and filtering characteristics.