KYOCERA AVX 1812AC332MAT1A Equivalent & Substitute Parts

Part Overview

The KYOCERA AVX 1812AC332MAT1A is a high-voltage ceramic capacitor rated at 1000V (1kV) with a capacitance of 3300 pF and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose applications requiring stable performance across the -55°C to 125°C operating temperature range. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit designs.

Substiute Parts

1812AC332MAT1A\SB

KYOCERA AVXIn Stock: 10081812AC332MAT1A\SB Datasheet

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1812HC332KAT1A

KYOCERA AVXIn Stock: 70741812HC332KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812AC332MAT1A is determined by the following critical parameters:

• Capacitance Value: Must be 3300 pF
• Package / Case: Must be 1812 (4532 Metric) for mechanical compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Temperature Coefficient: Must be X7R for thermal stability equivalence
• Operating Temperature Range: Must support -55°C to 125°C
• Compliance: Must maintain ROHS3 and REACH compliance status

The identified substitute part meets all these criteria. Voltage rating and tolerance may vary within acceptable design margins when the application circuit permits higher voltage ratings or tighter tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both parts are Active status products from KYOCERA AVX with identical ROHS3 and REACH compliance certifications. The 1812HC332KAT1A substitute offers a higher voltage rating (3000V vs 1000V) and tighter tolerance (±10% vs ±20%) while maintaining the same capacitance value, temperature coefficient, and operating temperature range. The substitute part has a greater maximum thickness (2.80mm vs 1.80mm), which must be verified for PCB assembly clearance in space-constrained designs. Both parts are MSL 1 rated, indicating no moisture sensitivity limitations. Selection between these parts depends on circuit voltage requirements and available board height.

Frequently Asked Questions (FAQ)

Q: Can the 1812HC332KAT1A replace the 1812AC332MAT1A in all applications?

A: The substitute part is mechanically and electrically compatible for applications where the circuit voltage does not exceed 3000V and the increased thickness (2.80mm vs 1.80mm) does not create assembly conflicts. Verify PCB clearance before substitution.

Q: What is the significance of the voltage rating difference?

A: The substitute part is rated for 3000V, which exceeds the original 1000V rating. This provides additional safety margin in high-voltage circuits but does not affect performance in circuits operating below 1000V.

Q: Does the tolerance difference affect circuit performance?

A: The substitute part has ±10% tolerance compared to ±20% for the original. Tighter tolerance may improve circuit precision but is not required for general-purpose applications.

Q: Are there packaging differences between these parts?

A: The main part uses standard packaging while the substitute is supplied in Tape & Reel (TR) format. Both are 1812 (4532 Metric) surface-mount packages with identical footprints.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.