1812PC104MAT3A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812PC104MAT3A is a 0.1 µF ±20% 250V X7R ceramic capacitor in 1812 (4532 Metric) surface mount package manufactured by KYOCERA AVX. This multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across a wide temperature range (-55°C to 125°C). The part is currently active and available with 820 pieces in stock. Substitute parts are necessary when design requirements demand improved tolerance specifications, higher voltage ratings, reduced thickness for space-constrained layouts, or when the original manufacturer part becomes unavailable.

Key Parameters

Parameter	Value
Capacitance	0.1 µF
Tolerance	±20%
Voltage Rating	250V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1812PC104MAT3A are grouped based on the following substitution criteria:

Primary Substitution Parameters:

Capacitance: 0.1 µF (exact match required)
Temperature Coefficient: X7R (exact match required)
Package / Case: 1812 (4532 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C to 125°C minimum (equal or wider acceptable)
RoHS Status: ROHS3 Compliant (required)
Moisture Sensitivity Level: 1 (Unlimited) (required)

Allowable Variations:

Tolerance: Can be tighter (±5%, ±10%) than the original ±20%
Voltage Rating: Can be equal or higher than 250V
Thickness: Can be equal or thinner than 0.100" (2.54mm)
Packaging Format: Tape & Reel (TR) acceptable as alternative to standard packaging
Product Status: Active preferred; Not For New Designs acceptable for legacy applications

All substitute parts maintain identical electrical performance at the 0.1 µF capacitance value while offering enhanced specifications in tolerance, voltage margin, or physical form factor.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temp Range	Package	Thickness (Max)	Product Status	RoHS Status
1812PC104MAT3A	KYOCERA AVX	0.1 µF	±20%	250V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.100" (2.54mm)	Active	ROHS3 Compliant
1812PC104KAT1A	KYOCERA AVX	0.1 µF	±10%	250V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.079" (2.00mm)	Active	ROHS3 Compliant
1812B104K501NT	Knowles Novacap	0.1 µF	±10%	500V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.065" (1.65mm)	Active	ROHS3 Compliant
C1812C104JARAC7800	KEMET	0.1 µF	±5%	250V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.043" (1.10mm)	Active	ROHS3 Compliant
C1812C104KARAC7800	KEMET	0.1 µF	±10%	250V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.043" (1.10mm)	Active	ROHS3 Compliant
C4532X7R2J104K230KA	TDK Corporation	0.1 µF	±10%	630V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.098" (2.50mm)	Active	ROHS3 Compliant
C4532X7R2J104K230KM	TDK Corporation	0.1 µF	±10%	630V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.098" (2.50mm)	Not For New Designs	ROHS3 Compliant
C4532X7R2J104M230KA	TDK Corporation	0.1 µF	±20%	630V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.098" (2.50mm)	Not For New Designs	ROHS3 Compliant
GRM43DR72J104KW01L	Murata Electronics	0.1 µF	±10%	630V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.087" (2.20mm)	Active	ROHS3 Compliant
QMK432B7104KM-T	Taiyo Yuden	0.1 µF	±10%	250V	X7R	-55°C ~ 125°C	1812 (4532 Metric)	0.106" (2.70mm)	Not For New Designs	ROHS3 Compliant
VJ1812Y104KXEAT	Vishay Vitramon	0.1 µF	±10%	500V	X7R	-55°C ~ 150°C	1812 (4532 Metric)	0.086" (2.18mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Improved Tolerance):

1812PC104KAT1A (KYOCERA AVX): Tighter ±10% tolerance with reduced thickness (2.00mm vs 2.54mm). Active product status. Recommended for space-constrained designs requiring improved capacitance accuracy.
C1812C104KARAC7800 (KEMET): ±10% tolerance with significantly reduced thickness (1.10mm). Active product status. Optimal for high-density PCB layouts.
C1812C104JARAC7800 (KEMET): Tightest ±5% tolerance with minimal thickness (1.10mm). Active product status. Suitable for precision applications requiring superior capacitance stability.

For Higher Voltage Applications (500V Rating):

1812B104K501NT (Knowles Novacap): 500V rating with ±10% tolerance and minimal thickness (1.65mm). Active product status. Provides voltage margin for power supply filtering applications.
VJ1812Y104KXEAT (Vishay Vitramon): 500V rating with ±10% tolerance and extended operating temperature to 150°C. Active product status. Suitable for high-temperature environments.

For Maximum Voltage Margin (630V Rating):

C4532X7R2J104K230KA (TDK Corporation): 630V rating with ±10% tolerance. Active product status. Recommended for new designs requiring maximum voltage headroom.
GRM43DR72J104KW01L (Murata Electronics): 630V rating with ±10% tolerance and high inventory availability (107,400 pieces). Active product status. Optimal for high-volume production.

Legacy / Inventory Clearance (Not For New Designs):

C4532X7R2J104K230KM (TDK Corporation): 630V rating, ±10% tolerance. Acceptable for replacement in existing designs but not recommended for new product development.
C4532X7R2J104M230KA (TDK Corporation): 630V rating, ±20% tolerance. Acceptable for replacement in existing designs but not recommended for new product development.
QMK432B7104KM-T (Taiyo Yuden): 250V rating, ±10% tolerance. Acceptable for replacement in existing designs but not recommended for new product development.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher voltage rating than the original 1812PC104MAT3A? A: Yes. A higher voltage rating (500V or 630V) is a direct substitute for 250V applications. The capacitor will function identically at the 0.1 µF capacitance value while providing additional voltage margin. This is particularly beneficial in power supply filtering and high-voltage circuits.

Q: What is the difference between ±20%, ±10%, and ±5% tolerance? A: Tolerance specifies the allowable deviation from the nominal 0.1 µF capacitance value. ±20% allows 0.08–0.12 µF; ±10% allows 0.09–0.11 µF; ±5% allows 0.095–0.105 µF. Tighter tolerances are required for precision filtering, timing circuits, and applications sensitive to capacitance variation.

Q: Does reduced thickness affect electrical performance? A: No. Thickness reduction (from 2.54mm to 1.10mm) is a physical form factor change that does not alter electrical characteristics. Thinner parts are beneficial for space-constrained PCB designs and high-density assemblies.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original part's environmental and regulatory compliance.

Q: What does "Not For New Designs" product status mean? A: Parts marked "Not For New Designs" are available for replacement in existing products but should not be selected for new product development. These parts may have limited long-term availability or have been superseded by newer alternatives. For new designs, select parts with "Active" product status.

Q: Can I substitute a 1812 package part with a different package size? A: No. The 1812 (4532 Metric) package is specific to this application. Substitution requires an identical package footprint to ensure PCB compatibility and assembly without redesign.

Q: Which substitute offers the best combination of performance and availability? A: GRM43DR72J104KW01L (Murata Electronics) provides 630V rating, ±10% tolerance, Active product status, and exceptional inventory availability (107,400 pieces). This part is optimal for high-volume production requiring maximum voltage margin and supply security.

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