Equivalent & Substitute Parts for 12063C104MAT2T

Part Overview

The 12063C104MAT2T is a 0.1 µF ceramic capacitor manufactured by KYOCERA AVX in 1206 (3216 Metric) package format with X7R temperature coefficient, rated for 25V operation. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain functional compatibility while offering improved availability and performance characteristics.

Key Parameters

Parameter	Value
Manufacturer Part Number	12063C104MAT2T
Manufacturer	KYOCERA AVX
Capacitance	0.1 µF
Tolerance	±20%
Voltage - Rated	25V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	1206 (3216 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)
Thickness (Max)	0.037" (0.94mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Capacitance: Must equal 0.1 µF (no tolerance variation acceptable)
Temperature Coefficient: Must be X7R (ensures stable capacitance across operating temperature range)
Package / Case: Must be 1206 (3216 Metric) (ensures mechanical and electrical compatibility with PCB layout)
Mounting Type: Must be Surface Mount, MLCC (maintains assembly process compatibility)
Operating Temperature Range: Must support -55°C ~ 125°C minimum
RoHS Status: Must maintain ROHS3 Compliance
Moisture Sensitivity Level: Must be MSL 1 or equivalent

Substitute parts are categorized into two groups:

Upgrade Substitutes: Parts with equal or superior voltage ratings (35V, 50V, 100V) and equal or improved tolerance specifications (±10%, ±5%). These provide enhanced performance margins and are direct functional replacements with active product status and improved availability.

Parametric Equivalent: Parts with identical electrical specifications (0.1 µF, ±20%, 25V, X7R) but active product status and superior inventory availability.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Thickness (Max)	Product Status	Inventory
12063C104MAT2T	KYOCERA AVX	0.1 µF	±20%	25V	X7R	1206	0.037"	Discontinued	864 Pcs
1206DC104KAT2A	KYOCERA AVX	0.1 µF	±10%	35V	X7R	1206	0.037"	Active	6992 Pcs
KGM31BR71E104JT	KYOCERA AVX	0.1 µF	±5%	25V	X7R	1206	0.037"	Active	15141 Pcs
KGM31BR71E104KT	KYOCERA AVX	0.1 µF	±10%	25V	X7R	1206	0.037"	Active	11406 Pcs
KGM31BR71H104JT	KYOCERA AVX	0.1 µF	±5%	50V	X7R	1206	0.037"	Active	112464 Pcs
KGM31BR71H104KM	KYOCERA AVX	0.1 µF	±10%	50V	X7R	1206	0.037"	Active	52957 Pcs
KGM31BR71H104KT	KYOCERA AVX	0.1 µF	±10%	50V	X7R	1206	0.037"	Active	466663 Pcs
KGM31BR71H104MT	KYOCERA AVX	0.1 µF	±20%	50V	X7R	1206	0.037"	Active	72379 Pcs
KGM31DR72A104JU	KYOCERA AVX	0.1 µF	±5%	100V	X7R	1206	0.057"	Active	48193 Pcs
KGM31DR72A104MU	KYOCERA AVX	0.1 µF	±20%	100V	X7R	1206	0.057"	Active	20024 Pcs
KGM31BR71E104MT	KYOCERA AVX	0.1 µF	±20%	25V	X7R	1206	0.037"	Active	9499 Pcs

Engineering Selection Recommendations

For direct replacement with identical voltage rating (25V):

KGM31BR71E104MT provides parametric equivalence with identical 0.1 µF capacitance, ±20% tolerance, and 25V rating in 1206 package. Active product status and 9499 Pcs inventory availability make this the primary parametric equivalent. ROHS3 compliance and MSL 1 rating match the original specification.

KGM31BR71E104JT offers improved tolerance (±5%) at the same 25V rating with 15141 Pcs inventory. Suitable for applications requiring tighter capacitance tolerance.

For voltage-upgraded substitutes:

1206DC104KAT2A provides 35V rating with ±10% tolerance in identical 1206 package. Active status with 6992 Pcs inventory. Voltage margin improvement of 40% over original specification.

KGM31BR71H104KT offers 50V rating with ±10% tolerance and highest inventory availability (466663 Pcs). Voltage margin improvement of 100% over original specification. Identical 0.037" thickness maintains PCB clearance compatibility.

KGM31BR71H104MT provides 50V rating with ±20% tolerance matching original tolerance specification. 72379 Pcs inventory. Suitable for applications where tolerance matching is prioritized over voltage margin.

KGM31DR72A104JU and KGM31DR72A104MU provide 100V rating with ±5% and ±20% tolerance respectively. Note: These parts feature increased thickness (0.057" vs 0.037"), requiring verification of PCB assembly clearance before selection.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and X7R temperature coefficient across -55°C ~ 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can KGM31BR71H104KT replace 12063C104MAT2T directly?

A: Yes. Both parts share identical capacitance (0.1 µF), temperature coefficient (X7R), package (1206), and mounting type (Surface Mount, MLCC). KGM31BR71H104KT provides superior voltage rating (50V vs 25V) and improved tolerance (±10% vs ±20%), making it a functional upgrade. Verify circuit design does not depend on the lower voltage rating of the original part.

Q: What is the difference between KGM31BR71H104KT and KGM31BR71H104MT?

A: Both parts are 0.1 µF, 50V, X7R, 1206 ceramic capacitors. The difference is tolerance: KGM31BR71H104KT is ±10% while KGM31BR71H104MT is ±20%. Select KGM31BR71H104KT for applications requiring tighter capacitance tolerance; select KGM31BR71H104MT for general-purpose applications where ±20% tolerance is acceptable.

Q: Why do KGM31DR72A104JU and KGM31DR72A104MU have different thickness?

A: The 100V rating requires thicker dielectric material, resulting in 0.057" thickness compared to 0.037" for lower voltage ratings. Verify PCB assembly clearance and component placement constraints before selecting these parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specification.

Q: What is the advantage of selecting a higher voltage-rated substitute?

A: Higher voltage ratings provide increased safety margin in the circuit. A 50V-rated capacitor in a 25V application provides 100% voltage derating margin, improving reliability and component lifespan. This is standard engineering practice for critical applications.

Q: Can I use KGM31BR71E104JT (±5% tolerance) instead of the original ±20% part?

A: Yes. Improved tolerance (±5%) is a performance upgrade. The tighter tolerance specification ensures more precise capacitance values, beneficial for circuits sensitive to capacitance variation. Verify circuit design does not depend on the wider tolerance range of the original part.

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