Equivalent & Substitute Parts for 1812AC102MAT1A

Part Overview

The 1812AC102MAT1A is a 1000 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 Active status with 1103 pieces in stock inventory. The X7R dielectric provides stable capacitance across the operating temperature range of -55°C to 125°C, making it suitable for general purpose high voltage applications. Substitute parts are identified based on matching capacitance, package, mounting type, and compliance certifications while allowing variations in voltage rating, tolerance, and temperature coefficient as permitted by circuit design requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	1812AC102MAT1A
Manufacturer	KYOCERA AVX
Capacitance	1000 pF
Voltage Rating	1000V (1kV)
Tolerance	±20%
Temperature Coefficient	X7R
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 1812AC102MAT1A are grouped based on the following substitution criteria:

Mandatory Matching Parameters:

Capacitance: 1000 pF (exact match required)
Package / Case: 1812 (4532 Metric)
Mounting Type: Surface Mount, MLCC
Manufacturer: KYOCERA AVX
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
Operating Temperature Range: -55°C ~ 125°C

Allowable Variation Parameters:

Voltage Rating: 1000V or higher (circuit design determines minimum acceptable voltage)
Tolerance: ±20%, ±10%, or ±5% (tighter tolerance acceptable for same or higher voltage)
Temperature Coefficient: X7R or C0G/NP0 (both acceptable for general purpose applications)
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel® (all suitable for automated assembly)

Parameter Comparison

Part Number	Capacitance	Voltage Rating	Tolerance	Temperature Coefficient	Package	Thickness (Max)	Inventory	Product Status
1812AC102MAT1A	1000 pF	1000V	±20%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	1103 Pcs	Active
1812AA102MAT1A	1000 pF	1000V	±20%	C0G, NP0	1812 (4532 Metric)	0.087" (2.20mm)	4242 Pcs	Active
1812AC102KAT1A	1000 pF	1000V	±10%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	1655 Pcs	Active
1812GC102KAT1A	1000 pF	2000V	±10%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	2100 Pcs	Active
1812GC102MAT1A	1000 pF	2000V	±20%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	14533 Pcs	Active
1812HC102KAT1A	1000 pF	3000V	±10%	X7R	1812 (4532 Metric)	0.087" (2.20mm)	2400 Pcs	Active
1812SC102MAT1A	1000 pF	1500V	±20%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	1080 Pcs	Active
1812WC102KAT1A	1000 pF	2500V	±10%	X7R	1812 (4532 Metric)	0.110" (2.80mm)	2778 Pcs	Active
KGM43ER73D102KV	1000 pF	2000V	±10%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	1812 Pcs	Active
KGM43ER73D102MV	1000 pF	2000V	±20%	X7R	1812 (4532 Metric)	0.071" (1.80mm)	6649 Pcs	Active
KGM43FCG3D102JV	1000 pF	2000V	±5%	C0G, NP0	1812 (4532 Metric)	0.087" (2.21mm)	6987 Pcs	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. Selection between substitute parts depends on circuit voltage requirements and tolerance specifications:

For 1000V applications with ±20% tolerance: 1812AC102MAT1A (original) or 1812AA102MAT1A (C0G/NP0 alternative with higher inventory).

For 1000V applications with ±10% tolerance: 1812AC102KAT1A provides tighter tolerance in the same voltage class.

For applications requiring voltage margin above 1000V: 1812SC102MAT1A (1500V), 1812GC102KAT1A or 1812GC102MAT1A (2000V), 1812WC102KAT1A (2500V), or 1812HC102KAT1A (3000V) offer progressively higher voltage ratings while maintaining 1000 pF capacitance and X7R stability.

For C0G/NP0 temperature coefficient requirement at 2000V: KGM43FCG3D102JV provides ±5% tolerance with superior temperature stability.

For KGM series high voltage line: KGM43ER73D102KV (±10%) or KGM43ER73D102MV (±20%) at 2000V rating.

Physical dimensions vary with voltage rating; verify PCB layout clearance for parts with increased thickness (1812HC102KAT1A, 1812WC102KAT1A, KGM43FCG3D102JV).

Frequently Asked Questions (FAQ)

Q: Can I substitute 1812AC102MAT1A with a higher voltage rated part? A: Yes. Higher voltage ratings (1500V, 2000V, 2500V, 3000V) are direct substitutes for 1000V applications. The circuit will operate safely with excess voltage margin. Verify PCB layout accommodates any thickness variations.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change across -55°C to 125°C operating range. C0G/NP0 provides ±30 ppm/°C (approximately ±0.9% across the same range), offering superior temperature stability for precision applications. Both are acceptable for general purpose use.

Q: Can I use ±10% tolerance parts as substitutes for ±20% tolerance? A: Yes. Tighter tolerance (±10% or ±5%) is a direct upgrade and maintains circuit performance. Looser tolerance substitution is not recommended.

Q: Are all substitute parts in the same 1812 package? A: Yes. All listed parts use 1812 (4532 Metric) surface mount package. However, thickness varies from 0.071" to 0.110" depending on voltage rating. Verify PCB layout clearance before substitution.

Q: What is the difference between KYOCERA AVX standard series and KGM series? A: KGM series represents the high voltage (HV) product line from KYOCERA AVX. Both series meet identical electrical and compliance specifications for the 1000 pF 1812 package. KGM series offers higher voltage options and alternative tolerance grades.

Q: Are packaging formats (Tape & Reel, Cut Tape, Digi-Reel) interchangeable? A: Yes. All packaging formats contain identical components and are suitable for automated assembly. Selection depends on procurement and assembly line requirements.

Q: What inventory levels should I consider for long-term supply? A: All listed parts maintain Active status with available inventory. 1812GC102MAT1A shows highest inventory (14533 Pcs), while 1812SC102MAT1A shows lowest (1080 Pcs). Verify current availability with supplier for production planning.

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