1808AC102MATME Equivalent & Substitute Parts

Part Overview

The 1808AC102MATME is a 1000 pF ±20% 1000V (1kV) ceramic capacitor with X7R temperature coefficient 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, indicating unlimited moisture sensitivity protection.

Equivalent and substitute parts are necessary when addressing specific design requirements such as improved tolerance grades, higher voltage ratings, alternative temperature coefficients, or packaging format preferences while maintaining the same footprint and core electrical characteristics.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution of the 1808AC102MATME is determined by the following criteria:

Electrical Compatibility: Capacitance value (1000 pF) and temperature coefficient (X7R or C0G/NP0) must remain constant. Voltage rating may be increased for design margin without functional impact.

Tolerance Grade: The original part specifies ±20% tolerance. Substitutes with ±10% tolerance provide improved accuracy and are directly interchangeable with enhanced performance characteristics.

Mechanical Compatibility: All substitute parts maintain the 1808 (4520 Metric) footprint and surface mount configuration. Physical dimensions (0.181" L × 0.079" W) remain consistent across all listed substitutes.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and Active product status, ensuring equivalent environmental and reliability standards.

Voltage Upgrade Path: Substitutes with higher voltage ratings (1.5kV, 2kV, 2.5kV, 3kV) are electrically compatible and provide increased design margin for high-voltage applications.

Temperature Coefficient Variants: C0G/NP0 temperature coefficient substitutes (KGM42CCG3A102KY) provide superior temperature stability compared to X7R, suitable for precision applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temp Coeff	Package	Inventory
1808AC102MATME	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1808	1016 Pcs
1808AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1808	2140 Pcs
1808SC102KAT1A	KYOCERA AVX	1000 pF	±10%	1500V	X7R	1808	5443 Pcs
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	3294 Pcs
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	6100 Pcs
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	2200 Pcs
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	4597 Pcs
KGM42CCG3A102KY	KYOCERA AVX	1000 pF	±10%	1000V	C0G/NP0	1808	1244 Pcs
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	9025 Pcs
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	2833 Pcs
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	5700 Pcs

Engineering Selection Recommendations

Direct Replacement (Same Voltage, Improved Tolerance): The 1808AC102KAT1A provides identical 1000V rating with improved ±10% tolerance, maintaining full electrical and mechanical compatibility. This part is recommended when tolerance improvement is required without voltage derating concerns.

Voltage Upgrade Path: For applications requiring increased design margin, the 1808SC102KAT1A (1.5kV), 1808GC102KAT1A (2kV), 1808WC102KAT1A (2.5kV), and 1808HC102KAT1A (3kV) are direct footprint substitutes with enhanced voltage ratings. All maintain ±10% tolerance and X7R temperature coefficient.

Tolerance-Matched Upgrade: The 1808GC102MAT1A maintains the original ±20% tolerance specification while providing 2kV voltage rating, suitable for applications where tolerance matching is critical and voltage margin is desired.

Temperature Coefficient Alternative: The KGM42CCG3A102KY offers C0G/NP0 temperature coefficient at 1000V rating with ±10% tolerance. This substitute is appropriate for precision applications requiring superior temperature stability compared to X7R.

High-Voltage Series (KGM): The KGM series substitutes (KGM42CR73D102KY, KGM42CR73D102MY, KGM42CR73U102KY) provide equivalent performance with enhanced voltage ratings and are part of the KGM - HV product line, offering alternative sourcing from the same manufacturer.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and Active product status, ensuring equivalent regulatory and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute for the 1808AC102MATME?

A: Yes. Higher voltage ratings (1.5kV, 2kV, 2.5kV, 3kV) are electrically compatible substitutes. The capacitor will function correctly in circuits designed for 1000V operation, providing additional design margin. Physical footprint and mounting remain identical.

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

A: X7R provides ±15% capacitance change across the -55°C to 125°C operating range. C0G/NP0 provides superior stability with minimal capacitance change across temperature. The KGM42CCG3A102KY (C0G/NP0) is suitable for precision applications where temperature stability is critical.

Q: Is the ±10% tolerance version a direct replacement for the ±20% version?

A: Yes. The 1808AC102KAT1A with ±10% tolerance is a direct replacement with improved accuracy. It maintains identical voltage rating, capacitance value, and physical dimensions. The tighter tolerance provides enhanced performance without any compatibility concerns.

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

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Verify packaging requirements for your assembly process. All parts maintain the same 1808 footprint and surface mount configuration.

Q: Can I substitute a KGM series part for a standard 1808 series part?

A: Yes. The KGM series (KGM42CCG3A102KY, KGM42CR73D102KY, KGM42CR73D102MY, KGM42CR73U102KY) are direct footprint and electrical substitutes. They represent alternative sourcing from the same manufacturer with equivalent compliance and reliability ratings.

Q: What inventory considerations should I evaluate when selecting a substitute?

A: Inventory levels vary across substitute parts. The KGM42CR73D102KY offers the highest inventory (9025 Pcs), while the KGM42CCG3A102KY offers the lowest (1244 Pcs). Evaluate lead time and supply chain requirements for your production schedule.

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