1210AC102MAT3A Ceramic Capacitor Equivalent & Substitute Parts

Part Overview

The 1210AC102MAT3A is a 1000 pF, 1 kV ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient, designed for general-purpose high-voltage applications. This part is currently active in production with 676 units in stock. Substitute parts are identified based on matching or exceeding electrical specifications while maintaining mechanical compatibility with the 1210 (3225 Metric) package footprint.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Voltage Rating	1000V (1 kV)
Tolerance	±20%
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1210 (3225 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Matching Parameters:

Capacitance: 1000 pF (exact match required)
Package / Case: 1210 (3225 Metric) (mechanical compatibility)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: MSL 1

Allowable Variations:

Voltage Rating: Equal to or greater than 1000V
Tolerance: Equal to or tighter than ±20%
Temperature Coefficient: X7R or X7S (both acceptable for general-purpose applications)

All identified substitute parts meet these criteria and are suitable for direct replacement in applications designed for the 1210AC102MAT3A.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	RoHS Status	Inventory
1210AC102MAT3A	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1210 (3225 Metric)	0.071" (1.80mm)	ROHS3	676 Pcs
1210AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1210 (3225 Metric)	0.071" (1.80mm)	ROHS3	3196 Pcs
1210GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1210 (3225 Metric)	0.071" (1.80mm)	ROHS3	2085 Pcs
KGM32HR73D102KU	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1210 (3225 Metric)	0.071" (1.80mm)	ROHS3	6399 Pcs
CC1210KKX7RDBB102	YAGEO	1000 pF	±10%	2000V	X7R	1210 (3225 Metric)	0.057" (1.45mm)	ROHS3	9571 Pcs
C3225X7S3D102K200AA	TDK Corporation	1000 pF	±10%	2000V	X7S	1210 (3225 Metric)	0.087" (2.20mm)	ROHS3	2588 Pcs

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and MSL 1 rating, meeting the environmental and regulatory requirements of the original 1210AC102MAT3A.

Direct Substitutes (Same Voltage Rating): The 1210AC102KAT1A offers tighter tolerance (±10% versus ±20%) while maintaining the same 1000V rating and X7R temperature coefficient. This part is electrically and mechanically interchangeable with improved capacitance accuracy.

Upgraded Substitutes (Higher Voltage Rating): The 1210GC102KAT1A, KGM32HR73D102KU, CC1210KKX7RDBB102, and C3225X7S3D102K200AA all provide 2000V voltage rating with ±10% tolerance. These parts are suitable for applications requiring higher voltage margin or where circuit redesign permits voltage derating. The KGM32HR73D102KU and CC1210KKX7RDBB102 offer the lowest profile thickness options.

Temperature Coefficient Consideration: The C3225X7S3D102K200AA uses X7S temperature coefficient instead of X7R. Both coefficients are suitable for general-purpose applications within the specified -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can I use a 2000V rated capacitor in place of the 1000V 1210AC102MAT3A? A: Yes. Higher voltage-rated capacitors are suitable substitutes as they provide additional voltage margin. The 2000V parts (1210GC102KAT1A, KGM32HR73D102KU, CC1210KKX7RDBB102, C3225X7S3D102K200AA) are mechanically and electrically compatible with the original 1000V design.

Q: What is the difference between X7R and X7S temperature coefficients? A: Both X7R and X7S are Class II ceramic dielectrics suitable for general-purpose applications. X7R provides ±15% capacitance change over -55°C to 125°C. X7S provides ±22% capacitance change over the same range. Both meet the operating temperature requirements of the original part.

Q: Does tighter tolerance (±10% vs ±20%) affect compatibility? A: No. Tighter tolerance is a direct improvement. Parts with ±10% tolerance (1210AC102KAT1A, 1210GC102KAT1A, KGM32HR73D102KU, CC1210KKX7RDBB102, C3225X7S3D102K200AA) provide better capacitance accuracy and are fully compatible with designs specified for ±20% tolerance.

Q: Are there physical size differences between substitute parts? A: All parts use the 1210 (3225 Metric) package with identical length (0.130" / 3.30mm) and width (0.098" / 2.50mm). Thickness varies slightly: most parts are 0.071" (1.80mm), while CC1210KKX7RDBB102 is 0.057" (1.45mm) and C3225X7S3D102K200AA is 0.087" (2.20mm). These variations are within standard PCB assembly tolerances.

Q: Which substitute offers the best inventory availability? A: CC1210KKX7RDBB102 (YAGEO) has the highest inventory at 9571 units, followed by KGM32HR73D102KU (KYOCERA AVX) at 6399 units.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 rating, matching the environmental compliance of the original 1210AC102MAT3A.

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