1808AC102MAT1A Equivalent & Substitute Parts

Part Overview

The 1808AC102MAT1A is a 1000 pF ±20% 1000V (1kV) ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient in 1808 (4520 Metric) surface mount package. This component is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter tolerances for high-voltage ceramic capacitor applications.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	1000V (1kV)
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	1808 (4520 Metric)
Mounting Type	Surface Mount, MLCC
Size	0.181" L x 0.079" W (4.60mm x 2.00mm)
Thickness	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1808AC102MAT1A are grouped based on the following substitution criteria:

Primary Substitution Parameters:

Capacitance: 1000 pF (fixed)
Package / Case: 1808 (4520 Metric) (fixed)
Mounting Type: Surface Mount, MLCC (fixed)
Operating Temperature Range: -55°C ~ 125°C (fixed)
RoHS Status: ROHS3 Compliant (fixed)
Moisture Sensitivity Level: 1 (Unlimited) (fixed)

Variable Parameters Allowing Substitution:

Tolerance: ±10% or ±20%
Voltage Rating: 1000V, 1500V, 2000V, 2500V, or 3000V
Temperature Coefficient: X7R or C0G/NP0
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®

Substitutes are valid when the capacitance, package, and mounting remain identical, while voltage rating may be equal or higher, tolerance may be tighter (±10% for ±20%), and temperature coefficient may differ based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness	Inventory	Product Status
1808AC102MAT1A	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1808	0.071" (1.80mm)	684 Pcs	Active
1808AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1808	0.071" (1.80mm)	2140 Pcs	Active
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.071" (1.80mm)	3294 Pcs	Active
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.071" (1.80mm)	6100 Pcs	Active
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.20mm)	4597 Pcs	Active
1808SC102KAT1A	KYOCERA AVX	1000 pF	±10%	1500V	X7R	1808	0.071" (1.80mm)	5443 Pcs	Active
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	0.087" (2.20mm)	2200 Pcs	Active
KGM42CCG3A102KY	KYOCERA AVX	1000 pF	±10%	1000V	C0G, NP0	1808	0.087" (2.21mm)	1244 Pcs	Active
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.087" (2.21mm)	9025 Pcs	Active
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.087" (2.21mm)	2833 Pcs	Active
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.21mm)	5700 Pcs	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance. Selection between substitutes depends on circuit voltage requirements and tolerance specifications:

Same Voltage Rating (1000V): 1808AC102KAT1A provides tighter ±10% tolerance at identical voltage rating with higher inventory availability (2140 Pcs). KGM42CCG3A102KY offers C0G/NP0 temperature coefficient alternative at 1000V with ±10% tolerance for applications requiring superior temperature stability.

Higher Voltage Ratings: 1808SC102KAT1A (1500V), 1808GC102KAT1A or KGM42CR73D102KY (2000V), 1808WC102KAT1A (2500V), and 1808HC102KAT1A or KGM42CR73U102KY (3000V) provide overvoltage margin. Higher voltage-rated parts may exhibit increased thickness (0.087" vs 0.071"), affecting PCB layout clearance.

Tolerance Matching: 1808GC102MAT1A and KGM42CR73D102MY maintain ±20% tolerance at 2000V for direct tolerance compatibility with higher voltage margin.

Packaging Format: Standard Tape & Reel (TR) packaging is available for most parts. Cut Tape (CT) & Digi-Reel® format is available for 1808GC102KAT1A and 1808GC102MAT1A.

Frequently Asked Questions (FAQ)

Q: Can 1808AC102KAT1A directly replace 1808AC102MAT1A? A: Yes. Both parts share identical capacitance (1000 pF), voltage rating (1000V), package (1808), and operating temperature range (-55°C ~ 125°C). The substitute has tighter tolerance (±10% vs ±20%), which is compatible with the original specification.

Q: What is the impact of selecting a higher voltage-rated substitute? A: Higher voltage ratings (1500V, 2000V, 2500V, 3000V) provide overvoltage safety margin and are electrically compatible. Physical thickness may increase from 0.071" to 0.087", requiring verification of PCB layout clearance and component spacing.

Q: Can C0G/NP0 temperature coefficient parts substitute for X7R? A: KGM42CCG3A102KY (C0G/NP0) is electrically compatible at 1000V with superior temperature stability characteristics. C0G/NP0 exhibits lower capacitance variation across temperature range compared to X7R, suitable for precision applications. Verify circuit design requirements before substitution.

Q: Are packaging format differences (Tape & Reel vs Cut Tape & Digi-Reel) significant? A: Packaging format affects supply chain and assembly processes but does not impact electrical or mechanical performance. Both formats are compatible with standard surface mount assembly equipment.

Q: What tolerance should be selected for circuit design? A: ±10% tolerance parts (1808AC102KAT1A, 1808GC102KAT1A, and others with "KAT" or "KY" designations) provide tighter capacitance control. ±20% tolerance parts (1808AC102MAT1A, 1808GC102MAT1A, KGM42CR73D102MY) are suitable for general-purpose applications with wider tolerance acceptance.

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