Equivalent & Substitute Parts for 12103E474MAT2A

Part Overview

The 12103E474MAT2A is a 0.47 µF ceramic capacitor manufactured by KYOCERA AVX, rated for 25V operation with Z5U temperature coefficient characteristics. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1210 (3225 Metric) package is designed for general-purpose applications requiring stable capacitance across the 10°C to 85°C operating temperature range. The part is Active status and ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection.

Substitute parts become necessary when higher voltage ratings are required for circuit redesign, when primary inventory is depleted, or when alternative manufacturer sourcing is needed for supply chain resilience.

Substiute Parts

12103E474MAT2A

KYOCERA AVXIn Stock: 75212103E474MAT2A Datasheet

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12105E474MAT2A

KYOCERA AVXIn Stock: 279112105E474MAT2A Datasheet

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C1210C474M5UAC7800

KEMETIn Stock: 11381C1210C474M5UAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 12103E474MAT2A is determined by strict equivalence in the following parameters:

• Capacitance Value: 0.47 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Temperature Coefficient: Z5U (exact match required)
• Package / Case: 1210 (3225 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)

Substitute parts identified in this reference maintain all critical electrical and mechanical parameters. The primary distinction among substitutes is the Voltage Rating, which may be equal to or higher than the original 25V specification. A higher voltage rating provides additional design margin and is electrically compatible with 25V circuits. Physical dimensions remain consistent across all listed substitutes, ensuring PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain Active product status and full compliance with ROHS3 and REACH regulations, ensuring regulatory continuity with the original 12103E474MAT2A specification.

The 12105E474MAT2A (KYOCERA AVX) provides a direct manufacturer upgrade path, maintaining identical physical dimensions and thickness while increasing voltage rating from 25V to 50V. This part is suitable for applications requiring higher voltage margin within the same manufacturer ecosystem.

The C1210C474M5UAC7800 (KEMET) offers cross-manufacturer substitution with identical electrical specifications and voltage rating of 50V. This part features reduced thickness (0.041" versus 0.067"), which may provide advantages in space-constrained PCB designs. Selection between KYOCERA AVX and KEMET substitutes depends on supply chain requirements, inventory availability, and design margin preferences.

Frequently Asked Questions (FAQ)

Q: Can the 12105E474MAT2A be used as a direct replacement for the 12103E474MAT2A?

A: Yes. Both parts share identical capacitance (0.47 µF), tolerance (±20%), temperature coefficient (Z5U), package (1210), and physical dimensions. The 12105E474MAT2A has a higher voltage rating (50V versus 25V), which is electrically compatible with 25V circuits and provides additional design margin.

Q: What is the difference between the KYOCERA AVX and KEMET substitutes?

A: Both substitutes maintain identical electrical specifications (0.47 µF, ±20%, Z5U, 50V). The primary difference is thickness: KYOCERA AVX 12105E474MAT2A is 0.067" thick, while KEMET C1210C474M5UAC7800 is 0.041" thick. Both fit the 1210 (3225 Metric) package footprint.

Q: Are all listed parts ROHS3 and REACH compliant?

A: Yes. All three parts (12103E474MAT2A, 12105E474MAT2A, and C1210C474M5UAC7800) are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance across all substitution options.

Q: Does the higher voltage rating affect circuit performance?

A: No. A 50V-rated capacitor operates correctly in a 25V circuit. The higher voltage rating provides additional safety margin and does not alter the capacitance value or temperature coefficient performance.

Q: Are there any PCB layout considerations when substituting parts?

A: All listed parts share identical footprint dimensions (0.126" L x 0.098" W / 3.20mm x 2.50mm). PCB layouts designed for the 12103E474MAT2A accommodate all substitute parts without modification. The reduced thickness of the KEMET part may provide clearance advantages in high-density assemblies.