1825AC102MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1825AC102MAT1A is a 1000 pF, 1 kV ceramic capacitor manufactured by KYOCERA AVX in the 1825 (4564 Metric) surface mount package. This high-voltage MLCC features X7R temperature coefficient characteristics and is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent capacitance and package dimensions are maintained while allowing for voltage rating upgrades or temperature coefficient variations that meet or exceed the original specifications.

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	1825 (4564 Metric)
Mounting Type	Surface Mount, MLCC
Size	0.177" L × 0.252" W (4.50 mm × 6.40 mm)
Thickness	0.100" (2.54 mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1825AC102MAT1A are qualified based on the following criteria:

Fixed Parameters (Must Match):

Capacitance: 1000 pF
Package / Case: 1825 (4564 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Allowable Variations:

Voltage Rating: May be equal to or greater than 1000V
Tolerance: May be tighter (lower) than ±20%
Temperature Coefficient: May differ (C0G/NP0 or X7R acceptable)
Thickness: May vary within physical constraints of the 1825 package

The three identified substitutes maintain identical capacitance and package footprint while offering upgraded voltage ratings (2000V) and improved tolerance specifications. All substitutes are manufactured by KYOCERA AVX and maintain full compliance with RoHS3 and MSL requirements.

Parameter Comparison

Parameter	1825AC102MAT1A (Main)	1825GA102JAT1A	1825GA102KAT1A	1825GC102KAT1A
Manufacturer	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX
Capacitance	1000 pF	1000 pF	1000 pF	1000 pF
Voltage Rating	1000V (1 kV)	2000V (2 kV)	2000V (2 kV)	2000V (2 kV)
Tolerance	±20%	±5%	±10%	±10%
Temperature Coefficient	X7R	C0G, NP0	C0G, NP0	X7R
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Package / Case	1825 (4564 Metric)	1825 (4564 Metric)	1825 (4564 Metric)	1825 (4564 Metric)
Size	0.177" L × 0.252" W (4.50 mm × 6.40 mm)	0.177" L × 0.252" W (4.50 mm × 6.40 mm)	0.177" L × 0.252" W (4.50 mm × 6.40 mm)	0.177" L × 0.252" W (4.50 mm × 6.40 mm)
Thickness	0.100" (2.54 mm)	0.087" (2.20 mm)	0.087" (2.20 mm)	0.100" (2.54 mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts are active production components with ROHS3 compliance and identical MSL ratings, ensuring equivalent environmental and regulatory qualification to the 1825AC102MAT1A.

1825GA102JAT1A: Offers doubled voltage rating (2000V) with improved tolerance (±5%) and C0G/NP0 temperature coefficient. Reduced thickness (0.087" vs. 0.100") provides design flexibility for space-constrained applications. Suitable for designs requiring superior voltage margin and tighter capacitance stability.

1825GA102KAT1A: Provides doubled voltage rating (2000V) with improved tolerance (±10%) and C0G/NP0 temperature coefficient. Reduced thickness (0.087") matches 1825GA102JAT1A. Represents a balanced upgrade path maintaining tighter tolerance than the original while preserving voltage headroom.

1825GC102KAT1A: Maintains X7R temperature coefficient identical to the main part while upgrading voltage rating to 2000V and tolerance to ±10%. Thickness remains at 0.100" (2.54 mm), matching the original specification. Optimal selection when X7R characteristics are required and voltage upgrade is the primary design objective.

Frequently Asked Questions (FAQ)

Q: Can 1825GA102JAT1A be used as a direct replacement for 1825AC102MAT1A?

A: Yes. Both parts maintain 1000 pF capacitance in the 1825 package with identical footprint and operating temperature range. The substitute offers higher voltage rating (2000V vs. 1000V), tighter tolerance (±5% vs. ±20%), and C0G/NP0 temperature coefficient. Electrical performance is compatible with applications designed for the original part.

Q: What is the difference between C0G/NP0 and X7R temperature coefficients?

A: C0G (also designated NP0) provides superior capacitance stability across temperature, with negligible capacitance change over the -55°C to 125°C range. X7R allows greater capacitance variation (±15% typical) over the same temperature range. Selection depends on application requirements for capacitance stability. The 1825GC102KAT1A maintains X7R characteristics if this is a design requirement.

Q: Does the reduced thickness of 1825GA102JAT1A and 1825GA102KAT1A affect PCB layout?

A: No. Both parts use the identical 1825 (4564 Metric) package footprint with the same pad pattern and spacing. Reduced thickness (0.087" vs. 0.100") provides additional clearance above the component but does not affect PCB design or assembly compatibility.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are supplied in Tape & Reel (TR) packaging. The main part 1825AC102MAT1A does not specify packaging format in the provided data. Confirm packaging requirements with procurement specifications before component selection.

Q: Which substitute should be selected for maximum design margin?

A: 1825GA102JAT1A provides the highest voltage margin (2000V rating) combined with the tightest tolerance specification (±5%). This part is recommended for applications requiring maximum electrical headroom and capacitance accuracy.

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