18126D107MAT2A Equivalent & Substitute Parts

Part Overview

The 18126D107MAT2A is a 100 µF ±20% 6.3V ceramic capacitor manufactured by KYOCERA AVX with X5R temperature coefficient in 1812 (4532 Metric) package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates across -55°C to 85°C and is suitable for general-purpose applications requiring stable capacitance across temperature variations.

Substiute Parts

18126D107MAT2A

KYOCERA AVXIn Stock: 3832118126D107MAT2A Datasheet

Current PartRFQ

KGM32LR50J107MU

KYOCERA AVXIn Stock: 53990KGM32LR50J107MU Datasheet

MFR RecommendedRFQ

C4532X5R1A107M280KC

TDK CorporationIn Stock: 3155C4532X5R1A107M280KC Datasheet

UpgradeRFQ

C4532X6S0J107M280KC

TDK CorporationIn Stock: 29469C4532X6S0J107M280KC Datasheet

MFR RecommendedRFQ

CL43A107MQLNNNF

Samsung Electro-MechanicsIn Stock: 816CL43A107MQLNNNF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 18126D107MAT2A is determined by the following critical parameters: capacitance value (100 µF), tolerance (±20%), rated voltage (6.3V minimum), temperature coefficient stability (X5R or equivalent), and package compatibility (1812/4532 Metric). Substitute parts must maintain identical or superior electrical performance within these constraints.

The substitute parts are grouped into two categories:

Direct Equivalents (Same Package, Same Specifications): Parts maintaining the 1812 (4532 Metric) package with 100 µF capacitance, ±20% tolerance, 6.3V rating, and X5R temperature coefficient from active manufacturers.

Functional Alternatives (Different Package or Enhanced Specifications): Parts with different package sizes or enhanced voltage ratings that provide electrical equivalence while offering alternative form factors or improved performance margins.

Parameter Comparison

Engineering Selection Recommendations

For Direct Package Replacement (1812/4532 Metric):

CL43A107MQLNNNF (Samsung Electro-Mechanics) provides the closest electrical match with identical capacitance, voltage rating, temperature coefficient, and package dimensions. This part is active and ROHS3 compliant with MSL 1 rating, ensuring compatibility with existing PCB layouts and assembly processes.

C4532X5R1A107M280KC (TDK Corporation) offers an upgrade path with 10V rated voltage while maintaining the same 1812 package, capacitance, and X5R temperature coefficient. The higher voltage rating provides additional performance margin for applications with voltage transients or design headroom requirements.

C4532X6S0J107M280KC (TDK Corporation) extends the operating temperature range to 105°C through X6S temperature coefficient while maintaining 6.3V rating and 1812 package. This substitution is suitable for applications requiring enhanced high-temperature stability.

For Space-Constrained Designs (Alternative Package):

KGM32LR50J107MU (KYOCERA AVX) provides electrical equivalence with reduced footprint in 1210 (3225 Metric) package. This part maintains 100 µF capacitance, 6.3V rating, X5R temperature coefficient, and active product status. PCB layout modification is required for this substitution.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can KGM32LR50J107MU replace 18126D107MAT2A directly on the PCB?

A: No. KGM32LR50J107MU uses 1210 (3225 Metric) package versus the original 1812 (4532 Metric) package. While electrically equivalent, the smaller footprint requires PCB layout modification. Direct mechanical substitution is not possible without redesign.

Q: What is the difference between X5R and X6S temperature coefficients?

A: Both are Class II ceramic dielectric materials with stable capacitance across temperature ranges. X5R maintains ±15% capacitance change from -55°C to 85°C. X6S maintains ±15% capacitance change from -55°C to 105°C, extending the upper operating temperature limit by 20°C. X6S substitution is suitable for higher-temperature applications.

Q: Is the 10V rated voltage substitute (C4532X5R1A107M280KC) compatible with 6.3V circuits?

A: Yes. A 10V rated capacitor operates safely in 6.3V circuits. The higher voltage rating provides additional safety margin and does not affect circuit performance. This substitution is recommended for applications with potential voltage transients or future design upgrades.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental and regulatory certifications.

Q: Why is the original part marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from KYOCERA AVX, TDK Corporation, and Samsung Electro-Mechanics provide equivalent or enhanced functionality for ongoing designs and procurement requirements.