Equivalent & Substitute Parts for 12063C104MAT4S

Part Overview

The 12063C104MAT4S is a 0.1 µF ±20% 25V X7R ceramic capacitor in 1206 (3216 Metric) surface mount package manufactured by KYOCERA AVX. This multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is active, ROHS3 compliant, and carries MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when design requirements allow for higher voltage ratings, improved tolerance specifications, or when inventory availability necessitates alternative sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	0.1 µF
Tolerance	±20%
Voltage Rating	25V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.126" L × 0.063" W (3.20mm × 1.60mm)
Thickness (Max)	0.037" (0.94mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 12063C104MAT4S is determined by the following criteria:

Mandatory Compatibility Parameters:

Capacitance: 0.1 µF (exact match required)
Temperature Coefficient: X7R (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
MSL Rating: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

Voltage Rating: May be equal to or higher than 25V
Tolerance: May be equal to or tighter than ±20%

Substitute parts are grouped into two categories:

Upgrade Substitutes: Parts with voltage ratings higher than 25V or tolerance specifications tighter than ±20%, providing enhanced performance margins while maintaining full mechanical and electrical compatibility.

Parametric Equivalents: Parts with identical voltage and tolerance specifications to the main part, offering alternative sourcing options with equivalent performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	RoHS Status	MSL Rating	Inventory (Pcs)
12063C104MAT4S	KYOCERA AVX	0.1 µF	±20%	25V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	734
1206DC104KAT2A	KYOCERA AVX	0.1 µF	±10%	35V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	6992
KGM31BR71E104JT	KYOCERA AVX	0.1 µF	±5%	25V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	15141
KGM31BR71E104KT	KYOCERA AVX	0.1 µF	±10%	25V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	11406
KGM31BR71H104JM	KYOCERA AVX	0.1 µF	±5%	50V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	8330
KGM31BR71H104JT	KYOCERA AVX	0.1 µF	±5%	50V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	112464
KGM31BR71H104KM	KYOCERA AVX	0.1 µF	±10%	50V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	52957
KGM31BR71H104KT	KYOCERA AVX	0.1 µF	±10%	50V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	466663
KGM31BR71H104MT	KYOCERA AVX	0.1 µF	±20%	50V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	72379
KGM31DR72A104KL	KYOCERA AVX	0.1 µF	±10%	100V	X7R	1206 (3216 Metric)	0.057" (1.45mm)	ROHS3	1	162737
KGM31BR71E104MT	KYOCERA AVX	0.1 µF	±20%	25V	X7R	1206 (3216 Metric)	0.037" (0.94mm)	ROHS3	1	9499

Engineering Selection Recommendations

Upgrade Substitutes with Higher Voltage Ratings:

Parts with 35V, 50V, or 100V ratings provide increased voltage margin above the original 25V specification. These are suitable for applications where circuit design allows higher voltage-rated components without adverse effects. All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring equivalent environmental and moisture handling characteristics.

Tolerance Improvements:

KGM31BR71E104JT and KGM31BR71H104JT offer ±5% tolerance compared to the original ±20%, providing tighter capacitance control. KGM31BR71E104KT and KGM31BR71H104KM offer ±10% tolerance. These tighter tolerances are applicable in circuits requiring improved capacitance stability without design modification.

Physical Dimension Consideration:

KGM31DR72A104KL operates at 100V with maximum thickness of 0.057" (1.45mm), compared to 0.037" (0.94mm) for all other parts. This increased thickness must be verified against PCB layout constraints and component clearance requirements before selection.

Inventory Availability:

KGM31BR71H104KT provides the highest inventory level (466,663 pcs) among all substitutes, offering supply chain reliability for high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can KGM31DR72A104KL be used as a direct replacement for 12063C104MAT4S?

A: KGM31DR72A104KL is electrically compatible as a substitute, maintaining 0.1 µF capacitance, X7R temperature coefficient, and 1206 package format. However, its maximum thickness of 0.057" (1.45mm) exceeds the original 0.037" (0.94mm). PCB layout verification is required to confirm clearance compatibility before implementation.

Q: What is the difference between upgrade substitutes and parametric equivalents?

A: Upgrade substitutes feature higher voltage ratings (35V, 50V, or 100V) or improved tolerance specifications (±5% or ±10%) compared to the original 25V ±20% rating. Parametric equivalents, such as KGM31BR71E104MT, match the original electrical specifications exactly and serve as alternative sourcing options. Both categories maintain full mechanical and environmental compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification identical to the main part 12063C104MAT4S, ensuring regulatory equivalence for applications subject to ROHS3 requirements.

Q: Can a 50V-rated capacitor be used in a circuit designed for 25V operation?

A: Yes. A 50V-rated capacitor is electrically suitable for 25V circuits. The voltage rating represents the maximum safe operating voltage; operation at lower voltages presents no functional or reliability concerns. The higher voltage rating provides additional safety margin.

Q: What does MSL 1 (Unlimited) moisture sensitivity rating mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts carry identical MSL 1 rating, ensuring equivalent moisture handling requirements.

Q: Are there any mechanical compatibility issues when substituting parts?

A: All substitute parts except KGM31DR72A104KL maintain identical physical dimensions (0.126" L × 0.063" W, 0.037" max thickness) and 1206 package format. KGM31DR72A104KL has increased thickness (0.057" max) requiring PCB clearance verification. All parts use identical surface mount technology and solder pad configurations.

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