GCM155R71C393KA37J Equivalent & Substitute Parts

Part Overview

The GCM155R71C393KA37J is a 0.039 µF ceramic capacitor manufactured by Murata Electronics, rated for 16V operation with X7R temperature coefficient characteristics. This surface-mount multilayer ceramic capacitor (MLCC) in 0402 (1005 Metric) package format is designed for automotive applications and maintains AEC-Q200 qualification. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

GCM155R71C393KA37J

Murata ElectronicsIn Stock: 1114GCM155R71C393KA37J Datasheet

Current PartRFQ

GCM155R71C393KA37D

Murata ElectronicsIn Stock: 77120GCM155R71C393KA37D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GCM155R71C393KA37J is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part GCM155R71C393KA37D maintains identical specifications in the following key areas:

• Capacitance value: 0.039 µF
• Tolerance band: ±10%
• Rated voltage: 16V
• Temperature coefficient: X7R
• Operating temperature range: -55°C ~ 125°C
• Package format: 0402 (1005 Metric)
• Mounting technology: Surface Mount, MLCC
• Automotive qualification: AEC-Q200
• Regulatory compliance: ROHS3, REACH Unaffected

Both parts share the identical base product number GCM155R71C and differ only in the final suffix designation, which reflects manufacturing date code or tape reel configuration without affecting electrical performance or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both GCM155R71C393KA37J and GCM155R71C393KA37D are qualified for direct substitution in automotive applications requiring AEC-Q200 certified components. Selection between these parts is based on availability and supply chain logistics rather than electrical or mechanical performance differences.

The GCM155R71C393KA37D offers significantly higher inventory availability (77,027 pieces) compared to the GCM155R71C393KA37J (1,058 pieces), making it the preferred choice for high-volume production runs or when extended lead times must be minimized. Both parts maintain identical compliance certifications including ROHS3 and REACH Unaffected status, ensuring regulatory requirements are satisfied regardless of which part number is selected.

The MSL 1 (Unlimited) moisture sensitivity rating for both parts eliminates moisture-related handling constraints during assembly and storage operations. The X7R temperature coefficient ensures stable capacitance performance across the full -55°C to 125°C operating range specified for automotive environments.

Frequently Asked Questions (FAQ)

Q: Can GCM155R71C393KA37D be used as a direct replacement for GCM155R71C393KA37J in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The suffix designation difference does not affect performance, compatibility, or functionality in circuit applications.

Q: What is the difference between the two part numbers?

A: The parts differ only in the final suffix characters (37J versus 37D), which typically indicate manufacturing date code or tape reel configuration. All electrical specifications, mechanical dimensions, and performance characteristics are identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both GCM155R71C393KA37J and GCM155R71C393KA37D carry AEC-Q200 qualification, confirming suitability for automotive-grade applications with appropriate reliability and quality standards.

Q: Do these parts require special handling during assembly?

A: No. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions. Standard surface-mount assembly processes apply without additional precautions.

Q: Will substituting one part for the other affect circuit performance?

A: No. Identical capacitance (0.039 µF), tolerance (±10%), voltage rating (16V), and temperature coefficient (X7R) ensure equivalent electrical behavior in all circuit configurations.

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

A: No. Both parts maintain identical ROHS3 compliance and REACH Unaffected status, satisfying all applicable regulatory requirements without distinction.

Q: What is the significance of the 0402 package format?

A: The 0402 (1005 Metric) package is a standard surface-mount format measuring 1.00mm length by 0.50mm width. Both parts use this identical package, ensuring compatibility with existing PCB layouts and assembly equipment without modification.