1812AC471MAT1A Equivalent & Substitute Parts

Part Overview

The 1812AC471MAT1A 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 in active product status and widely used in general-purpose high-voltage applications. Substitute parts are identified based on matching capacitance value, package size, and compatible electrical ratings while allowing for voltage upgrades and tolerance variations within acceptable engineering parameters.

Key Parameters

Parameter	Value
Capacitance	470 pF
Tolerance	±20%
Voltage Rating	1000V (1kV)
Temperature Coefficient	X7R
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)

Substitute Part Grouping Explanation

Substitution of the 1812AC471MAT1A 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: X7R or C0G/NP0 acceptable
Tolerance: May be tighter (lower) than ±20%
Manufacturer: KYOCERA AVX or YAGEO
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®

Substitute parts identified in this reference maintain identical capacitance and package footprint while offering enhanced voltage ratings (2kV or 3kV) or improved temperature stability characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Thickness (Max)	Packaging	Inventory
1812AC471MAT1A	KYOCERA AVX	470 pF	±20%	1000V	X7R	0.071" (1.80mm)	Tape & Reel (TR)	870 Pcs
1812GA471JAT1A	KYOCERA AVX	470 pF	±5%	2000V	C0G, NP0	0.087" (2.20mm)	Cut Tape (CT) & Digi-Reel®	3300 Pcs
1812GC471KAT1A	KYOCERA AVX	470 pF	±10%	2000V	X7R	0.071" (1.80mm)	Tape & Reel (TR)	2300 Pcs
1812HC471KAT1A	KYOCERA AVX	470 pF	±10%	3000V	X7R	0.071" (1.80mm)	Tape & Reel (TR)	8662 Pcs
KGM43ER73U471KV	KYOCERA AVX	470 pF	±10%	3000V	X7R	0.071" (1.80mm)	Tape & Reel (TR)	1135 Pcs
CC1812JKNPOCBN471	YAGEO	470 pF	±5%	1000V	C0G, NP0	0.059" (1.50mm)	Tape & Reel (TR)	3875 Pcs

Engineering Selection Recommendations

Same Voltage Rating (1000V): The CC1812JKNPOCBN471 from YAGEO provides a direct voltage-equivalent alternative with improved tolerance (±5% versus ±20%) and C0G/NP0 temperature coefficient for applications requiring superior temperature stability. Both parts maintain ROHS3 compliance and MSL 1 rating.

Voltage Upgrade Options (2000V): The 1812GA471JAT1A and 1812GC471KAT1A offer doubled voltage ratings suitable for designs requiring enhanced overvoltage margin. The 1812GA471JAT1A provides C0G/NP0 stability with ±5% tolerance, while 1812GC471KAT1A maintains X7R characteristics with ±10% tolerance and identical thickness to the original part.

High Voltage Upgrade Options (3000V): The 1812HC471KAT1A and KGM43ER73U471KV both provide tripled voltage ratings with X7R temperature coefficient and ±10% tolerance. The KGM43ER73U471KV is designated as part of the KGM - HV series. Both maintain identical thickness and footprint compatibility.

All substitute parts are active products with ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1812AC471MAT1A with a higher voltage-rated part? A: Yes. Higher voltage ratings (2000V or 3000V) are acceptable substitutes provided capacitance remains 470 pF, package remains 1812 (4532 Metric), and operating temperature range remains -55°C ~ 125°C. Higher voltage ratings provide additional safety margin in the circuit.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change across the operating temperature range. C0G/NP0 provides superior stability with minimal capacitance change. Selection depends on circuit requirements for temperature compensation.

Q: Are there physical size differences between substitute parts? A: All parts maintain the same 1812 (4532 Metric) footprint (0.181" L x 0.126" W). Thickness varies: original and most substitutes are 0.071" (1.80mm), except 1812GA471JAT1A at 0.087" (2.20mm) and CC1812JKNPOCBN471 at 0.059" (1.50mm). Verify PCB clearance for thicker variants.

Q: What packaging formats are available? A: Most parts are supplied in Tape & Reel (TR) format. The 1812GA471JAT1A is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with assembly equipment requirements.

Q: Can I use CC1812JKNPOCBN471 (YAGEO) as a direct replacement? A: Yes, for 1000V applications. It maintains identical voltage rating, capacitance, and package with improved tolerance (±5%) and C0G/NP0 temperature stability. Physical dimensions are slightly different (0.177" L vs 0.181" L), but footprint compatibility is maintained for 1812 package specifications.

Q: Which substitute offers the best availability? A: The 1812HC471KAT1A has the highest inventory at 8662 pieces, followed by CC1812JKNPOCBN471 at 3875 pieces. Both are active products with immediate availability.

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