1808SC102MAT9A Ceramic Capacitor Equivalent & Substitute Parts

Part Overview

The 1808SC102MAT9A is a 1000 pF ±20% 1500V (1.5kV) ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient and 1808 (4520 Metric) package configuration. 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 ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) and is currently in active production status with 735 pieces in stock. Substitute parts are identified to address voltage rating upgrades, tolerance improvements, packaging format variations, and alternative manufacturer sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	1500V (1.5kV)
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1808 (4520 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.181" L x 0.079" W (4.60mm x 2.00mm)
Thickness (Max)	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the 1808SC102MAT9A are grouped based on the following allowed electrical and mechanical parameters:

Constant Parameters (Must Match):

Capacitance: 1000 pF
Temperature Coefficient: X7R
Package / Case: 1808 (4520 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

Voltage Rating: 1500V, 2000V, 2500V, or 3000V (equal or higher)
Tolerance: ±10% or ±20%
Packaging Format: Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR)
Manufacturer: KYOCERA AVX or TDK Corporation
Physical Dimensions: Minor variations in length (0.177" to 0.181"), thickness (0.059" to 0.087")

Substitution is valid when the replacement part maintains identical capacitance, temperature coefficient, package designation, and mounting type while offering equal or higher voltage rating and equal or tighter tolerance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	Product Status	Inventory
1808SC102MAT9A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1808	0.071" (1.80mm)	Active	735 Pcs
1808SC102KAT1A	KYOCERA AVX	1000 pF	±10%	1500V	X7R	1808	0.071" (1.80mm)	Active	5443 Pcs
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.071" (1.80mm)	Active	3294 Pcs
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.071" (1.80mm)	Active	6100 Pcs
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	0.087" (2.20mm)	Active	2200 Pcs
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.20mm)	Active	4597 Pcs
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.087" (2.21mm)	Active	9025 Pcs
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.087" (2.21mm)	Active	2833 Pcs
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.21mm)	Active	5700 Pcs
C4520X7R3D102K130KA	TDK Corporation	1000 pF	±10%	2000V	X7R	1808	0.059" (1.50mm)	Active	95140 Pcs
C4520X7R3D102M130KA	TDK Corporation	1000 pF	±20%	2000V	X7R	1808	0.059" (1.50mm)	Not For New Designs	1920 Pcs

Engineering Selection Recommendations

Direct Equivalent (Same Voltage Rating): 1808SC102KAT1A is the direct equivalent with identical 1500V rating and 1808 package. This part offers improved ±10% tolerance compared to the ±20% tolerance of 1808SC102MAT9A while maintaining all other electrical and mechanical specifications. Both parts are ROHS3 compliant and have MSL 1 rating.

Voltage Upgrade Options: For applications requiring higher voltage margins, 1808GC102KAT1A (2000V, ±10%) and 1808GC102MAT1A (2000V, ±20%) provide 33% voltage headroom increase. The 1808WC102KAT1A (2500V, ±10%) and 1808HC102KAT1A (3000V, ±10%) offer 67% and 100% voltage increases respectively. All KYOCERA AVX variants maintain active product status and ROHS3 compliance.

Alternative Manufacturer (TDK Corporation): C4520X7R3D102K130KA (2000V, ±10%) and C4520X7R3D102M130KA (2000V, ±20%) provide cross-manufacturer substitution with 2000V rating. The TDK parts feature reduced thickness (0.059" versus 0.071"), which may be advantageous for space-constrained designs. C4520X7R3D102K130KA is in active status with high inventory (95140 pcs). C4520X7R3D102M130KA is marked "Not For New Designs" and should not be selected for new applications.

KGM Series (KYOCERA AVX High-Voltage Line): KGM42CR73D102KY (2000V, ±10%) and KGM42CR73D102MY (2000V, ±20%) are part of the KGM high-voltage series with slightly increased thickness (0.087" versus 0.071"). KGM42CR73U102KY (3000V, ±10%) provides maximum voltage rating. All KGM variants are active products with strong inventory availability.

Compliance and Regulatory Status: All substitute parts maintain ROHS3 compliance and REACH Unaffected status. MSL 1 (unlimited) rating is consistent across all options, indicating no moisture sensitivity restrictions during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can 1808SC102KAT1A replace 1808SC102MAT9A in existing designs? A: Yes. 1808SC102KAT1A is a direct substitute with identical voltage rating (1500V), package (1808), and mounting type. The only difference is improved tolerance (±10% versus ±20%), which is a beneficial change. Both parts are ROHS3 compliant with MSL 1 rating.

Q: What is the advantage of upgrading to 2000V or higher voltage ratings? A: Higher voltage-rated capacitors provide increased safety margin in high-voltage applications. A 2000V part (1808GC102KAT1A) offers 33% additional voltage headroom compared to the 1500V original part, reducing stress on the component and improving circuit reliability. Selection depends on actual circuit voltage requirements.

Q: Are there physical dimension differences between substitute parts? A: Yes. Most KYOCERA AVX substitutes maintain the same 0.181" length and 0.079" width. However, thickness varies: standard parts are 0.071" (1.80mm), while 1808WC102KAT1A and 1808HC102KAT1A are 0.087" (2.20mm). KGM series parts are 0.087" (2.21mm). TDK C4520 series parts are thinner at 0.059" (1.50mm). Verify PCB layout clearance before selecting thicker variants.

Q: Can TDK C4520X7R3D102K130KA replace KYOCERA AVX parts? A: Yes, for applications requiring 2000V rating. C4520X7R3D102K130KA is electrically equivalent with identical 1000 pF capacitance, X7R temperature coefficient, and ±10% tolerance. The 1808 package designation is compatible. However, the reduced thickness (0.059" versus 0.071") requires PCB layout verification. This part has high inventory availability (95140 pcs).

Q: Why is C4520X7R3D102M130KA marked "Not For New Designs"? A: This TDK part is in end-of-life status and should not be selected for new product development. Use C4520X7R3D102K130KA (active status) or KYOCERA AVX alternatives instead.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging? A: Both are surface mount tape formats suitable for automated assembly. Cut Tape & Digi-Reel® offers flexibility for smaller quantities and mixed component orders. Tape & Reel (TR) is optimized for high-volume production runs. Electrical and mechanical specifications are identical; packaging choice depends on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH Unaffected, matching the compliance status of 1808SC102MAT9A. MSL 1 (unlimited moisture sensitivity level) is consistent across all options.

Q: Which substitute offers the best inventory availability? A: C4520X7R3D102K130KA (TDK Corporation) has the highest inventory at 95140 pieces. Among KYOCERA AVX options, KGM42CR73D102KY has 9025 pieces available. For direct 1500V equivalent, 1808SC102KAT1A has 5443 pieces in stock.

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