1808GC102MAT1A Equivalent & Substitute Parts

Part Overview

The 1808GC102MAT1A is a 1000 pF ceramic capacitor rated at 2000V (2kV) with X7R temperature coefficient, manufactured by KYOCERA AVX in 1808 (4520 Metric) package format. This high-voltage surface mount multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching or upgraded electrical specifications and mechanical compatibility within the 1808 package family.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	2000V (2kV)
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
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 1808GC102MAT1A are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes (Equivalent Specifications) Direct substitutes maintain identical capacitance (1000 pF), voltage rating (2000V), temperature coefficient (X7R), and package format (1808). These parts differ only in tolerance (±20% vs ±10%), manufacturer, or packaging format (Cut Tape vs Tape & Reel). Direct substitutes include KGM42CR73D102MY, C4520X7R3D102M130KA, and CC1808MKX7RDBB102.

Upgrade Substitutes (Enhanced Specifications) Upgrade substitutes maintain the same capacitance and package but offer improved tolerance (±10% instead of ±20%), higher voltage ratings (2500V or 3000V instead of 2000V), or both. These parts are suitable for applications requiring tighter capacitance tolerance or higher voltage margin. Upgrade options include 1808GC102KAT1A (±10%, 2000V), 1808HC102KAT1A (±10%, 3000V), 1808WC102KAT1A (±10%, 2500V), KGM42CR73D102KY (±10%, 2000V), KGM42CR73U102KY (±10%, 3000V), C4520X7R3D102K130KA (±10%, 2000V), and C1808C102KGRAC7800 (±10%, 2000V).

Substitution is determined by three key parameters: capacitance value, voltage rating, and package dimensions. All listed substitutes maintain the 1808 (4520 Metric) package footprint and X7R temperature stability required for general-purpose high-voltage applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	Product Status	Inventory
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.071" (1.80mm)	Active	6100 Pcs
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.087" (2.21mm)	Active	2833 Pcs
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.071" (1.80mm)	Active	3294 Pcs
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.20mm)	Active	4597 Pcs
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	0.087" (2.20mm)	Active	2200 Pcs
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.087" (2.21mm)	Active	9025 Pcs
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.21mm)	Active	5700 Pcs
C4520X7R3D102M130KA	TDK Corporation	1000 pF	±20%	2000V	X7R	1808	0.059" (1.50mm)	Not For New Designs	1920 Pcs
CC1808MKX7RDBB102	YAGEO	1000 pF	±20%	2000V	X7R	1808	0.087" (2.20mm)	Active	7407 Pcs
C1808C102KGRAC7800	KEMET	1000 pF	±10%	2000V	X7R	1808	0.069" (1.75mm)	Active	3100 Pcs
C4520X7R3D102K130KA	TDK Corporation	1000 pF	±10%	2000V	X7R	1808	0.059" (1.50mm)	Active	95140 Pcs

Engineering Selection Recommendations

For Direct Replacement (Equivalent Specifications) KGM42CR73D102MY, C4520X7R3D102M130KA, and CC1808MKX7RDBB102 maintain the ±20% tolerance and 2000V rating of the original 1808GC102MAT1A. All three are ROHS3 compliant with MSL 1 rating. KGM42CR73D102MY is manufactured by KYOCERA AVX (same as the main part) and offers 2833 units in stock. C4520X7R3D102M130KA is manufactured by TDK but carries "Not For New Designs" status and should be avoided for new applications. CC1808MKX7RDBB102 from YAGEO is active production with 7407 units available.

For Improved Tolerance (±10% Specification) 1808GC102KAT1A and KGM42CR73D102KY both provide ±10% tolerance at 2000V from KYOCERA AVX. KGM42CR73D102KY offers significantly higher inventory (9025 units) compared to 1808GC102KAT1A (3294 units). C4520X7R3D102K130KA from TDK provides ±10% tolerance with the highest inventory level (95140 units) and active production status. C1808C102KGRAC7800 from KEMET offers ±10% tolerance with low ESL characteristics and 3100 units in stock.

For Higher Voltage Margin (3000V Rating) 1808HC102KAT1A and KGM42CR73U102KY both provide 3000V rating with ±10% tolerance. KGM42CR73U102KY offers higher inventory (5700 units) and is from the KGM HV series. Both are KYOCERA AVX products in active production.

For Intermediate Voltage (2500V Rating) 1808WC102KAT1A provides 2500V rating with ±10% tolerance as a middle-ground option between 2000V and 3000V specifications.

All recommended substitutes are ROHS3 compliant with MSL 1 rating, matching the environmental and compliance requirements of the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with ±10% tolerance in place of the ±20% tolerance original? A: Yes. A ±10% tolerance part is a tighter specification and is functionally compatible with designs requiring ±20% tolerance. The capacitance will remain within the original ±20% band while offering improved accuracy.

Q: What is the difference between direct substitutes and upgrade substitutes? A: Direct substitutes (KGM42CR73D102MY, C4520X7R3D102M130KA, CC1808MKX7RDBB102) match the original ±20% tolerance and 2000V rating exactly. Upgrade substitutes offer either tighter tolerance (±10%), higher voltage rating (2500V or 3000V), or both. Upgrade parts are suitable for applications requiring enhanced performance margins.

Q: Are all substitute parts compatible with the same PCB footprint? A: Yes. All listed substitutes use the 1808 (4520 Metric) package format with identical length (0.181" / 4.60mm) and width (0.079" / 2.00mm). However, thickness varies between 0.059" and 0.087", which may affect board clearance in space-constrained designs. Verify thickness compatibility with your PCB layout before selection.

Q: Why is C4520X7R3D102M130KA marked "Not For New Designs"? A: Parts marked "Not For New Designs" are in mature or declining production phases. While functionally equivalent, they should not be selected for new product development. Use active production alternatives such as C4520X7R3D102K130KA instead.

Q: Which substitute offers the best inventory availability? A: C4520X7R3D102K130KA from TDK Corporation provides the highest inventory level at 95140 units with active production status and ±10% tolerance at 2000V.

Q: Can I use a 3000V rated part in a 2000V application? A: Yes. A higher voltage rating (3000V) is compatible with lower voltage applications (2000V). The part will operate safely with additional voltage margin. This is suitable for designs requiring enhanced reliability or future voltage specification changes.

Q: What is the significance of the KGM series designation? A: The KGM series from KYOCERA AVX indicates high-voltage (HV) ceramic capacitors. KGM42CR73D102KY and KGM42CR73U102KY are specialized high-voltage variants with enhanced performance characteristics compared to standard 1808GC series parts.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the original 1808GC102MAT1A.

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