GCM188R72A182KA37D Equivalent & Substitute Parts

Part Overview

The GCM188R72A182KA37D is a 1800 pF ceramic capacitor manufactured by Murata Electronics, rated for 100V operation with X7R temperature coefficient characteristics. This component is packaged in 0603 (1608 Metric) surface mount form factor and meets AEC-Q200 automotive qualification standards. The part carries a Product Status designation of "Not For New Designs," indicating that alternative solutions should be evaluated for new circuit implementations. Identifying equivalent and substitute parts is necessary to support ongoing production requirements, design flexibility, and supply chain continuity.

Substiute Parts

GCM188R72A182KA37D

Murata ElectronicsIn Stock: 725GCM188R72A182KA37D Datasheet

Current PartRFQ

GCM155R72A182KA37D

Murata ElectronicsIn Stock: 974GCM155R72A182KA37D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the GCM188R72A182KA37D is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 1800 pF
• Tolerance: ±10%
• Voltage Rating: 100V
• Temperature Coefficient: X7R
• Operating Temperature Range: -55°C ~ 125°C

Compliance & Certification (Must Match):

• AEC-Q200 automotive qualification
• ROHS3 compliance
• Moisture Sensitivity Level 1

Mechanical Parameters (May Vary):

• Package / Case form factor (0603, 0402, or other surface mount packages)
• Physical dimensions and thickness

The substitute part GCM155R72A182KA37D maintains identical electrical specifications and compliance certifications while differing only in package size (0402 versus 0603). This substitution is valid where board space constraints or design requirements permit the smaller form factor.

Parameter Comparison

Engineering Selection Recommendations

GCM188R72A182KA37D (Main Part): This component is suitable for sustaining existing production runs and field service applications where the 0603 package footprint is already established in the circuit design. The part maintains full AEC-Q200 automotive compliance and ROHS3 certification. However, the "Not For New Designs" status indicates this part should not be selected for new circuit development.

GCM155R72A182KA37D (Substitute Part): This substitute part is the preferred selection for new designs requiring 1800 pF, 100V, X7R ceramic capacitor functionality. The Active product status confirms ongoing manufacturer support and supply availability. The GCM155R72A182KA37D delivers identical electrical performance and automotive compliance in a smaller 0402 package footprint. Selection of this substitute is appropriate when board space optimization is a design objective or when supply continuity for the main part cannot be assured.

Both parts are manufactured by Murata Electronics and carry equivalent compliance certifications (AEC-Q200, ROHS3, MSL 1). The primary differentiation is package size and product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can GCM155R72A182KA37D be used as a direct replacement for GCM188R72A182KA37D?

A: Yes, the GCM155R72A182KA37D is electrically equivalent. Both parts deliver 1800 pF capacitance at 100V with X7R temperature stability across -55°C to 125°C. The substitute differs only in package size (0402 versus 0603). Direct substitution is valid provided the circuit board layout accommodates the smaller 0402 footprint and the design does not impose specific package dimension constraints.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This designation indicates that Murata Electronics has transitioned the GCM188R72A182KA37D to end-of-life status and is not recommending it for new circuit development. New designs should incorporate the GCM155R72A182KA37D, which carries Active product status and ensures long-term supply availability and manufacturer support.

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

A: No. Both the GCM188R72A182KA37D and GCM155R72A182KA37D maintain identical compliance profiles: AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1. Both parts are suitable for automotive applications requiring these certifications.

Q: What are the physical size differences between 0603 and 0402 packages?

A: The 0603 package (GCM188R72A182KA37D) measures 1.60mm x 0.80mm with 0.90mm maximum thickness. The 0402 package (GCM155R72A182KA37D) measures 1.00mm x 0.50mm with 0.55mm maximum thickness. The 0402 is approximately 37% smaller in length, 37% smaller in width, and 39% smaller in thickness. Board layout and assembly equipment capabilities must accommodate the selected package size.

Q: Can the substitute part be used in existing production tooling designed for 0603 packages?

A: No. The 0402 package requires different pick-and-place tooling, solder paste stencil apertures, and reflow profiles than the 0603 package. Production transition to the GCM155R72A182KA37D requires validation of assembly processes and equipment compatibility before implementation.

Q: What inventory status should influence part selection?

A: The GCM188R72A182KA37D currently has 626 units in stock, while the GCM155R72A182KA37D has 942 units available. For new designs, the GCM155R72A182KA37D is the preferred selection due to Active product status and higher inventory levels. For existing production support, the GCM188R72A182KA37D remains available for near-term requirements.