1812CC102MAT3A Ceramic Capacitor Equivalent & Substitute Parts

Part Overview

The 1812CC102MAT3A is a 1000 pF ±20% 630V X7R ceramic capacitor in 1812 (4532 Metric) surface mount package manufactured by KYOCERA AVX. This high-voltage 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 in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when design requirements necessitate higher voltage ratings, tighter tolerance specifications, or alternative packaging formats while maintaining the same capacitance value and package footprint.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	630V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.181" L × 0.126" W (4.60mm × 3.20mm)
Thickness	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1812CC102MAT3A are grouped based on the following substitution criteria:

Fixed Parameters (Must Match):

Capacitance: 1000 pF
Temperature Coefficient: X7R
Package / Case: 1812 (4532 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

Voltage Rating: 1000V, 1500V, 2000V, 2500V, or 3000V (higher ratings acceptable)
Tolerance: ±10% or ±20%
Thickness: 0.071" to 0.110" (varies by voltage rating)
Packaging Format: Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, or unspecified

All substitute parts maintain identical capacitance, temperature stability, and footprint compatibility while offering enhanced voltage performance and tolerance options.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness	RoHS Status	Inventory
1812CC102MAT3A	KYOCERA AVX	1000 pF	±20%	630V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	1126 Pcs
1812AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	1655 Pcs
1812AC102MAT1A	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	1103 Pcs
1812GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	2100 Pcs
1812GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	14533 Pcs
1812HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1812 (4532 Metric)	0.087" (2.20mm)	ROHS3	2400 Pcs
1812SC102MAT1A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	1080 Pcs
1812WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1812 (4532 Metric)	0.110" (2.80mm)	ROHS3	2778 Pcs
KGM43ER73D102KV	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	1812 Pcs
KGM43ER73D102MV	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812 (4532 Metric)	0.071" (1.80mm)	ROHS3	6649 Pcs
KGM43FR73U102KV	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1812 (4532 Metric)	0.087" (2.21mm)	ROHS3	3091 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Selection between substitute options depends on circuit voltage requirements:

For circuits operating at or below 630V, the original 1812CC102MAT3A remains appropriate. For circuits requiring higher voltage margins, substitute parts rated at 1000V, 1500V, 2000V, 2500V, or 3000V provide enhanced safety and reliability. Parts with ±10% tolerance offer tighter capacitance control compared to ±20% tolerance variants. The KGM series (KGM43ER73D102KV, KGM43ER73D102MV, KGM43FR73U102KV) represents an alternative product line within the same manufacturer portfolio, maintaining identical electrical and mechanical specifications to their 1812-series equivalents.

Physical thickness increases with higher voltage ratings due to dielectric material requirements. Standard 1812 footprint compatibility is maintained across all substitutes, though board layout clearance should be verified for parts with increased thickness (1812HC102KAT1A, 1812WC102KAT1A, KGM43FR73U102KV).

Frequently Asked Questions (FAQ)

Q: Can I substitute a higher voltage-rated capacitor for the 1812CC102MAT3A in a 630V circuit?

A: Yes. Higher voltage-rated capacitors are electrically compatible in lower-voltage applications. The 1000V, 1500V, 2000V, 2500V, and 3000V rated substitutes all function correctly in 630V circuits and provide additional voltage margin.

Q: What is the difference between ±10% and ±20% tolerance parts?

A: Tolerance specifies the allowable deviation from the nominal 1000 pF capacitance value. ±10% tolerance parts (1000 pF ± 100 pF) provide tighter capacitance control than ±20% tolerance parts (1000 pF ± 200 pF). Selection depends on circuit sensitivity to capacitance variation.

Q: Are the KGM series parts direct replacements for the 1812 series?

A: Yes. KGM43ER73D102KV, KGM43ER73D102MV, and KGM43FR73U102KV maintain identical capacitance, voltage rating, temperature coefficient, package footprint, and electrical performance as their 1812-series equivalents. They represent an alternative product line from the same manufacturer.

Q: Will increased thickness affect PCB assembly?

A: Parts with increased thickness (1812HC102KAT1A at 0.087", 1812WC102KAT1A at 0.110", KGM43FR73U102KV at 0.087") maintain the same 1812 footprint but require verification of board-level clearance, particularly for components or traces in close proximity. Standard 1812 footprint parts (0.071" thickness) present no clearance concerns.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and unlimited moisture sensitivity rating (MSL 1), matching the environmental and regulatory status of the original 1812CC102MAT3A.

Q: What packaging formats are available?

A: Substitute parts are supplied in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, or standard packaging formats. Verify packaging specification against procurement requirements before ordering.

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