Equivalent & Substitute Parts for 1812AC471MATME

Part Overview

The 1812AC471MATME is a 470 pF ceramic capacitor rated at 1000V (1kV) with X7R temperature coefficient, manufactured by KYOCERA AVX in 1812 (4532 Metric) surface mount package. This component is classified as Active product status and is suitable for general purpose high voltage applications. Substitute parts are identified when design requirements necessitate enhanced voltage ratings, improved capacitance tolerance, or alternative temperature coefficient characteristics while maintaining the same capacitance value and package footprint.

Key Parameters

Parameter	Value
Capacitance	470 pF
Voltage Rating	1000V (1kV)
Temperature Coefficient	X7R
Tolerance	±20%
Package / Case	1812 (4532 Metric)
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 1812AC471MATME is determined by the following criteria:

Fixed Parameters (Must Match):

Capacitance: 470 pF
Package / Case: 1812 (4532 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C ~ 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

Voltage Rating: May be equal or higher than 1000V
Temperature Coefficient: May differ (X7R, C0G/NP0)
Tolerance: May be tighter (±5%, ±10%) or equal (±20%)
Manufacturer: Alternative manufacturers permitted
Packaging Format: Cut Tape, Tape & Reel acceptable

The substitute parts listed below meet all fixed parameters while offering enhanced electrical characteristics in voltage rating and/or tolerance specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Temperature Coefficient	Tolerance	Package	Thickness (Max)	Inventory Status
1812AC471MATME	KYOCERA AVX	470 pF	1000V (1kV)	X7R	±20%	1812 (4532 Metric)	0.071" (1.80mm)	762 Pcs
1812GA471JAT1A	KYOCERA AVX	470 pF	2000V (2kV)	C0G, NP0	±5%	1812 (4532 Metric)	0.087" (2.20mm)	3300 Pcs
1812GC471KAT1A	KYOCERA AVX	470 pF	2000V (2kV)	X7R	±10%	1812 (4532 Metric)	0.071" (1.80mm)	2300 Pcs
1812HC471KAT1A	KYOCERA AVX	470 pF	3000V (3kV)	X7R	±10%	1812 (4532 Metric)	0.071" (1.80mm)	8662 Pcs
KGM43ER73U471KV	KYOCERA AVX	470 pF	3000V (3kV)	X7R	±10%	1812 (4532 Metric)	0.071" (1.80mm)	1135 Pcs
CC1812JKNPOCBN471	YAGEO	470 pF	1000V (1kV)	C0G, NP0	±5%	1812 (4532 Metric)	0.059" (1.50mm)	3875 Pcs

Engineering Selection Recommendations

KYOCERA AVX 1812GA471JAT1A (2kV Upgrade, C0G/NP0) Suitable when higher voltage margin and tighter capacitance tolerance are required. C0G/NP0 temperature coefficient provides superior stability across the operating temperature range compared to X7R. Increased thickness (2.20mm) must be verified against PCB layout constraints. ROHS3 compliant with unlimited moisture sensitivity rating.

KYOCERA AVX 1812GC471KAT1A (2kV Upgrade, X7R) Direct voltage upgrade maintaining X7R temperature coefficient. Tighter ±10% tolerance improves circuit performance predictability. Identical thickness profile (1.80mm) to original part. Highest inventory availability among 2kV options. ROHS3 compliant.

KYOCERA AVX 1812HC471KAT1A (3kV Upgrade, X7R) Maximum voltage rating option with X7R characteristics. Suitable for applications requiring substantial voltage safety margin. Maintains original thickness specification. Largest inventory stock (8662 Pcs). ROHS3 compliant.

KYOCERA AVX KGM43ER73U471KV (3kV Upgrade, X7R, KGM Series) High voltage ceramic capacitor from KGM - HV series. Equivalent electrical specifications to 1812HC471KAT1A with alternative part numbering scheme. ROHS3 compliant. Lower inventory availability.

YAGEO CC1812JKNPOCBN471 (Same Voltage, C0G/NP0, Alternative Manufacturer) Alternative manufacturer option maintaining 1kV voltage rating. C0G/NP0 temperature coefficient and ±5% tolerance provide enhanced stability. Reduced thickness (1.50mm) offers PCB space advantage. ROHS3 compliant. Suitable when manufacturer diversification is required.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage rated capacitor as a direct replacement? A: Yes. All substitute parts maintain the same 470 pF capacitance, 1812 package footprint, and operating temperature range. Higher voltage ratings provide additional safety margin without affecting circuit functionality. Verify PCB layout accommodates any thickness variations.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance variation across -55°C to 125°C operating range. C0G/NP0 provides superior stability with ±0.3% variation. C0G/NP0 is preferred for precision applications; X7R is suitable for general purpose use.

Q: Does tolerance affect substitution compatibility? A: Tighter tolerance (±5%, ±10%) is always acceptable as a substitute for ±20%. Tighter tolerance improves circuit predictability and performance consistency without introducing incompatibility.

Q: Are there physical size constraints I should consider? A: All parts use 1812 (4532 Metric) package with identical length (0.181" / 4.60mm) and width (0.126" / 3.20mm). Thickness varies: original and most upgrades are 0.071" (1.80mm); 1812GA471JAT1A is 0.087" (2.20mm); CC1812JKNPOCBN471 is 0.059" (1.50mm). Verify PCB clearance for thickness variations.

Q: Is cross-manufacturer substitution acceptable? A: Yes. YAGEO CC1812JKNPOCBN471 meets all fixed parameter requirements and maintains ROHS3 compliance. Manufacturer diversification may be required for supply chain resilience.

Q: What inventory considerations apply? A: 1812HC471KAT1A offers highest stock (8662 Pcs). 1812GC471KAT1A provides 2kV option with strong availability (2300 Pcs). Original 1812AC471MATME has limited stock (762 Pcs). Substitute selection may be influenced by procurement lead time requirements.

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