1812GC471MAT1A Equivalent & Substitute Parts

Part Overview

The 1812GC471MAT1A is a 470 pF high-voltage ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient and 2000V rated voltage. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose applications requiring stable capacitance across operating temperatures from -55°C to 125°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the specified parameter range.

Key Parameters

Parameter	Value
Capacitance	470 pF
Voltage Rating	2000V (2kV)
Temperature Coefficient	X7R
Tolerance	±20%
Operating Temperature Range	-55°C to 125°C
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	RoHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 1812GC471MAT1A is determined by the following critical parameters: capacitance value (470 pF), package form factor (1812 / 4532 Metric), mounting type (Surface Mount MLCC), operating temperature range (-55°C to 125°C), and compliance certifications (RoHS3, REACH Unaffected). Voltage rating and temperature coefficient may vary within the substitute group, provided the substitute part meets or exceeds the original specification. Tolerance variations are permitted when the substitute maintains the same capacitance value and voltage rating. All substitute parts listed are manufactured by KYOCERA AVX and maintain Active product status.

Parameter Comparison

Parameter	1812GC471MAT1A	1812GA471JAT1A	1812GC471KAT1A	1812HC471KAT1A	KGM43ER73U471KV
Manufacturer	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX
Capacitance	470 pF	470 pF	470 pF	470 pF	470 pF
Tolerance	±20%	±5%	±10%	±10%	±10%
Voltage Rating	2000V	2000V	2000V	3000V	3000V
Temperature Coefficient	X7R	C0G, NP0	X7R	X7R	X7R
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Package / Case	1812 (4532 Metric)	1812 (4532 Metric)	1812 (4532 Metric)	1812 (4532 Metric)	1812 (4532 Metric)
Size (L x W)	0.181" x 0.126" (4.60mm x 3.20mm)	0.181" x 0.126" (4.60mm x 3.20mm)	0.181" x 0.126" (4.60mm x 3.20mm)	0.181" x 0.126" (4.60mm x 3.20mm)	0.181" x 0.126" (4.60mm x 3.20mm)
Thickness (Max)	0.071" (1.80mm)	0.087" (2.20mm)	0.071" (1.80mm)	0.071" (1.80mm)	0.071" (1.80mm)
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain Active product status and full RoHS3 compliance with REACH Unaffected designation, ensuring regulatory compatibility with the original 1812GC471MAT1A specification. Selection between substitute options depends on application-specific requirements:

1812GA471JAT1A offers tighter tolerance (±5%) with C0G/NP0 temperature coefficient, suitable for applications requiring superior capacitance stability and lower tolerance drift.

1812GC471KAT1A provides improved tolerance (±10%) while maintaining X7R temperature coefficient and identical 2000V voltage rating, offering a direct performance upgrade with reduced tolerance variation.

1812HC471KAT1A and KGM43ER73U471KV both provide elevated voltage rating (3000V) with X7R temperature coefficient and ±10% tolerance, enabling use in higher-voltage circuit designs while maintaining mechanical and thermal compatibility. KGM43ER73U471KV belongs to the KGM - HV series designation.

All parts share identical package dimensions (1812 / 4532 Metric), surface-mount configuration, and unlimited moisture sensitivity rating, ensuring direct board-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can 1812GA471JAT1A replace 1812GC471MAT1A in all applications?

A: 1812GA471JAT1A is electrically compatible with identical capacitance (470 pF) and voltage rating (2000V). The primary difference is temperature coefficient (C0G/NP0 versus X7R) and tighter tolerance (±5% versus ±20%). Mechanical compatibility is maintained, though maximum thickness increases from 1.80mm to 2.20mm. Verify board clearance before substitution.

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

A: X7R provides capacitance variation of ±15% across the -55°C to 125°C operating range. C0G/NP0 provides superior stability with minimal capacitance drift across temperature. Selection depends on circuit tolerance requirements.

Q: Are the 3000V rated parts (1812HC471KAT1A and KGM43ER73U471KV) direct replacements?

A: Both 3000V parts are mechanically and electrically compatible with the 2000V original specification. Higher voltage rating provides additional design margin and reliability in high-voltage applications. No design changes are required for substitution.

Q: What packaging formats are available for these parts?

A: 1812GC471MAT1A is supplied in Cut Tape (CT) & Digi-Reel format. 1812GC471KAT1A, 1812HC471KAT1A, and KGM43ER73U471KV are supplied in Tape & Reel (TR) format. Packaging format does not affect electrical or mechanical performance.

Q: Do all substitute parts meet the same compliance requirements?

A: All substitute parts are RoHS3 compliant, REACH Unaffected, and carry EAR99 ECCN classification. Compliance certifications are equivalent across the substitute group.

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