LMK042B7102KC-FW Equivalent & Substitute Parts

Part Overview

The LMK042B7102KC-FW is a 1000 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 10V operation with X7R temperature coefficient characteristics. This component is designed for surface mount applications in SMPS filtering circuits and is packaged in the 01005 (0402 Metric) form factor. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

LMK042B7102KC-FW

Taiyo YudenIn Stock: 1000364LMK042B7102KC-FW Datasheet

Current PartRFQ

GRM022R71A102KA12L

Murata ElectronicsIn Stock: 40369GRM022R71A102KA12L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMK042B7102KC-FW is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 1000 pF (exact match required)
• Tolerance: ±10% (defines acceptable capacitance variation)
• Voltage Rating: 10V (minimum rated voltage for circuit operation)
• Temperature Coefficient: X7R (ensures stable capacitance across operating temperature range of -55°C ~ 125°C)
• Package / Case: 01005 (0402 Metric) (physical and electrical footprint compatibility)
• Mounting Type: Surface Mount, MLCC (assembly process compatibility)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage requirements)

Substitute parts must match all parameters listed above to ensure functional and mechanical compatibility without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The GRM022R71A102KA12L manufactured by Murata Electronics is a direct parametric equivalent to the obsolete LMK042B7102KC-FW. Both components share identical electrical specifications, physical dimensions, and environmental ratings. The Murata part carries Active product status, ensuring ongoing availability and supply chain continuity.

The GRM022R71A102KA12L is RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution. The substitute part is supplied in Cut Tape (CT) packaging format and maintains the same Moisture Sensitivity Level (MSL) classification, requiring identical handling protocols during assembly and storage.

Direct substitution is supported without circuit modification, PCB redesign, or performance degradation when replacing the obsolete LMK042B7102KC-FW with the GRM022R71A102KA12L in SMPS filtering applications and general-purpose ceramic capacitor circuits.

Frequently Asked Questions (FAQ)

Q: Can the GRM022R71A102KA12L be used as a direct replacement for the LMK042B7102KC-FW?

A: Yes. Both components are parametrically equivalent across all critical specifications including capacitance, voltage rating, temperature coefficient, package dimensions, and moisture sensitivity classification. Direct substitution is supported without circuit modification.

Q: What is the significance of the X7R temperature coefficient?

A: X7R temperature coefficient indicates that capacitance variation remains within ±15% across the operating temperature range of -55°C to 125°C. This stability is essential for SMPS filtering applications where temperature-dependent capacitance drift must be minimized.

Q: Are there packaging differences between the main part and substitute?

A: The LMK042B7102KC-FW is supplied in standard packaging format, while the GRM022R71A102KA12L is supplied in Cut Tape (CT) format. Both components occupy identical physical footprints (01005 / 0402 Metric) and are compatible with standard surface mount assembly processes.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions. Both the main part and substitute require standard handling procedures but do not require specialized dry-pack storage or baking procedures prior to assembly.

Q: Why is the LMK042B7102KC-FW classified as obsolete?

A: Obsolete status indicates that Taiyo Yuden has discontinued production and support for this component. The GRM022R71A102KA12L provides equivalent functionality with active manufacturer support and ongoing availability.

Q: Are there compliance or certification differences?

A: The GRM022R71A102KA12L carries RoHS3 Compliance and REACH Unaffected certifications. Both components share the same ECCN (EAR99) and HTSUS (8532.24.0020) classifications for export and tariff purposes.