CM1485-02SE RC (Pi) EMI Filter Equivalent & Substitute Parts

Part Overview

The CM1485-02SE is a 2nd order RC (Pi) EMI filter manufactured by onsemi, designed for low-pass filtering applications in data lines for mobile devices. This component features 100 Ohm resistance per channel with 12pF capacitance values and operates across the -40°C to 85°C temperature range. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

CM1485-02SE

onsemiIn Stock: 5422CM1485-02SE Datasheet

Current PartRFQ

NUF2230XV6T1G

onsemiIn Stock: 12122NUF2230XV6T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM1485-02SE is determined by the following critical parameters:

• Filter technology and order (RC Pi, 2nd order)
• Number of channels (2 channels)
• Resistance value per channel (100 Ohms)
• Package compatibility (SOT-563, SOT-666)
• Physical dimensions (0.063" L x 0.047" W x 0.024" H)
• Operating temperature range (-40°C ~ 85°C)
• ESD protection capability

The NUF2230XV6T1G meets these core substitution criteria. The primary difference is the capacitance value (16pF versus 12pF), which results in a modified cutoff frequency characteristic while maintaining the same filter topology, channel configuration, resistance value, and physical package specifications.

Parameter Comparison

Engineering Selection Recommendations

The NUF2230XV6T1G is the qualified substitute for the CM1485-02SE based on the following factors:

• Identical filter topology, channel count, and resistance specifications
• Compatible package and physical dimensions for direct PCB placement
• Matching operating temperature range and ESD protection
• Active product status with current manufacturing availability
• ROHS3 compliance certification for the substitute part
• Both parts maintain REACH unaffected status and EAR99 export classification

The capacitance difference (16pF versus 12pF) produces a modified frequency response characteristic. Circuit designers must evaluate whether this capacitance variance aligns with the intended filtering application and signal integrity requirements for their specific data line implementation.

Frequently Asked Questions (FAQ)

Q: Can NUF2230XV6T1G be used as a direct replacement for CM1485-02SE?

A: The NUF2230XV6T1G is mechanically and electrically compatible in terms of package, mounting, channel configuration, and resistance values. The 16pF capacitance (versus 12pF) alters the frequency response. Compatibility depends on whether the application tolerates this capacitance change.

Q: What is the primary difference between these two parts?

A: The capacitance value differs: CM1485-02SE uses 12pF while NUF2230XV6T1G uses 16pF. Both maintain the same 100 Ohm resistance per channel and 2nd order RC (Pi) filter topology.

Q: Are the physical packages identical?

A: Yes. Both parts use SOT-563 and SOT-666 packages with identical dimensions: 0.063" L x 0.047" W x 0.024" H (1.60mm x 1.20mm x 0.60mm).

Q: What is the product status difference?

A: CM1485-02SE is obsolete, while NUF2230XV6T1G is active. The substitute part has current manufacturing support and availability.

Q: Do both parts support the same operating temperature range?

A: Yes. Both parts operate from -40°C to 85°C and include ESD protection.

Q: Are there compliance differences between the parts?

A: NUF2230XV6T1G carries ROHS3 compliance certification. Both parts maintain REACH unaffected status and EAR99 export classification.