1808AC102MAT3A Equivalent & Substitute Parts

Part Overview

The 1808AC102MAT3A is a 1000 pF ceramic capacitor rated at 1000V (1kV) with X7R temperature coefficient and ±20% tolerance, manufactured by KYOCERA AVX in 1808 (4520 Metric) surface mount package. This high-voltage 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 status and ROHS3 compliant with MSL 1 rating. Substitute parts are identified based on matching capacitance, package, temperature coefficient, and voltage rating parameters while allowing for tolerance and voltage upgrades.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	1000V (1kV)
Temperature Coefficient	X7R
Package / Case	1808 (4520 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 1808AC102MAT3A is determined by the following criteria:

Primary Matching Parameters (Required for Direct Substitution):

Capacitance: 1000 pF (exact match)
Package / Case: 1808 (4520 Metric) (exact match)
Temperature Coefficient: X7R (exact match)
Mounting Type: Surface Mount, MLCC (exact match)
Operating Temperature Range: -55°C ~ 125°C (exact match)

Allowable Variations:

Tolerance: Can upgrade from ±20% to ±10% (tighter tolerance is acceptable)
Voltage Rating: Can upgrade to higher voltage ratings (1500V, 2000V, 2500V, 3000V) for increased safety margin
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® are both acceptable
Temperature Coefficient: C0G/NP0 is acceptable as alternative to X7R (superior stability)

Non-Substitutable Parameters:

Capacitance value must remain 1000 pF
Package size must remain 1808 (4520 Metric)
Mounting type must remain Surface Mount, MLCC

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temp Coeff	Package	Inventory	Status
1808AC102MAT3A	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1808	804 Pcs	Active
1808AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1808	2140 Pcs	Active
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	3294 Pcs	Active
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	6100 Pcs	Active
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	4597 Pcs	Active
1808SC102KAT1A	KYOCERA AVX	1000 pF	±10%	1500V	X7R	1808	5443 Pcs	Active
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	2200 Pcs	Active
KGM42CCG3A102KY	KYOCERA AVX	1000 pF	±10%	1000V	C0G/NP0	1808	1244 Pcs	Active
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	9025 Pcs	Active
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	2833 Pcs	Active
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	5700 Pcs	Active

Engineering Selection Recommendations

All listed substitute parts are Active status and ROHS3 compliant with MSL 1 rating, matching the compliance profile of the 1808AC102MAT3A. Selection among substitutes depends on application voltage requirements and tolerance specifications:

Same Voltage Rating (1000V):

1808AC102KAT1A provides tighter ±10% tolerance at identical voltage rating
KGM42CCG3A102KY offers C0G/NP0 temperature coefficient for superior temperature stability if required by application

Upgraded Voltage Ratings:

1808SC102KAT1A (1500V): Intermediate voltage upgrade with ±10% tolerance
1808GC102KAT1A or KGM42CR73D102KY (2000V): Standard voltage upgrade options with ±10% tolerance
1808GC102MAT1A or KGM42CR73D102MY (2000V): Voltage upgrade maintaining ±20% tolerance
1808WC102KAT1A (2500V): Higher voltage margin with ±10% tolerance
1808HC102KAT1A or KGM42CR73U102KY (3000V): Maximum voltage rating available with ±10% tolerance

All substitutes maintain identical 1808 package dimensions, surface mount configuration, and -55°C to 125°C operating temperature range. Inventory availability ranges from 1244 to 9025 pieces across the substitute options.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1808AC102MAT3A with a part having different capacitance value? A: No. The capacitance value of 1000 pF is a core functional parameter. Any substitute must maintain exactly 1000 pF capacitance.

Q: Is it acceptable to use a substitute with ±10% tolerance instead of ±20%? A: Yes. Tighter tolerance (±10%) is an acceptable upgrade and provides improved capacitance accuracy. The application circuit must tolerate the tighter tolerance specification.

Q: Can I use a higher voltage-rated part as a substitute? A: Yes. Higher voltage ratings (1500V, 2000V, 2500V, 3000V) provide increased safety margin and are functionally compatible. The circuit must accommodate any physical dimension changes; verify thickness specifications for 3000V variants (2.20mm vs. 1.80mm standard).

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change across -55°C to 125°C. C0G/NP0 provides superior stability with minimal capacitance change across temperature. C0G/NP0 is suitable for applications requiring tighter temperature stability.

Q: Are all substitutes available in the same packaging format? A: No. The main part 1808AC102MAT3A is Tape & Reel (TR). Some substitutes are available in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with assembly equipment requirements.

Q: Do all substitutes meet the same compliance standards? A: Yes. All listed substitutes are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of 1808AC102MAT3A.

Q: Which substitute offers the best inventory availability? A: KGM42CR73D102KY (2000V, ±10%, X7R) has the highest inventory at 9025 pieces, followed by 1808GC102MAT1A at 6100 pieces.

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