1812HC471MAT1A High Voltage Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812HC471MAT1A is a 470 pF high voltage ceramic capacitor manufactured by KYOCERA AVX, rated for 3000V (3kV) operation with X7R temperature coefficient characteristics. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package format is designed for general purpose high voltage applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, voltage rating, tolerance, temperature coefficient) and mechanical compatibility (package format, physical dimensions).

Substiute Parts

1812HC471MAT1A\SB

KYOCERA AVXIn Stock: 10171812HC471MAT1A\SB Datasheet

Current PartRFQ

1812HC471KAT1A

KYOCERA AVXIn Stock: 86941812HC471KAT1A Datasheet

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KGM43ER73U471KV

KYOCERA AVXIn Stock: 1150KGM43ER73U471KV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812HC471MAT1A are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Equivalence Criteria:

• Capacitance value: 470 pF (exact match required)
• Voltage rating: 3000V (3kV) minimum (equal or higher acceptable)
• Temperature coefficient: X7R (required for stable performance across operating range)
• Operating temperature range: -55°C to 125°C (minimum requirement)

Mechanical Compatibility Criteria:

• Package format: 1812 (4532 Metric) (exact match required for PCB layout)
• Physical dimensions: 0.181" L x 0.126" W, 0.071" thickness (exact match required)
• Mounting type: Surface Mount, MLCC (required for assembly compatibility)

Compliance & Regulatory Criteria:

• RoHS3 compliance (environmental requirement)
• Moisture Sensitivity Level 1 (handling and storage compatibility)

The identified substitute parts maintain all critical electrical and mechanical parameters while offering improved tolerance specifications (±10% versus ±20%), representing an upgrade path for applications requiring tighter capacitance control.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status with full ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility across applications.

1812HC471MAT1A (Original): Suitable for applications where ±20% capacitance tolerance is acceptable. Standard packaging configuration.

1812HC471KAT1A (Substitute): Direct upgrade offering improved ±10% tolerance specification while maintaining all electrical and mechanical parameters. Tape & Reel packaging provides enhanced handling for high-volume production environments.

KGM43ER73U471KV (Substitute): High voltage series variant (KGM - HV designation) with ±10% tolerance specification. Tape & Reel packaging. Functionally equivalent with identical electrical performance and mechanical compatibility.

Selection between substitute parts depends on tolerance requirements and packaging preferences. All parts are qualified for direct substitution in 1812 (4532 Metric) footprint applications requiring 470 pF capacitance at 3000V rating.

Frequently Asked Questions (FAQ)

Q: Can 1812HC471KAT1A replace 1812HC471MAT1A in existing designs?

A: Yes. Both parts share identical capacitance (470 pF), voltage rating (3000V), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), and physical dimensions (1812/4532 Metric package). The substitute offers improved ±10% tolerance versus ±20%, representing a direct upgrade.

Q: What is the difference between 1812HC471KAT1A and KGM43ER73U471KV?

A: Both parts are electrically equivalent with 470 pF capacitance, ±10% tolerance, and 3000V rating. KGM43ER73U471KV belongs to the KGM - HV (high voltage) series. Both are mechanically compatible in 1812 (4532 Metric) footprints. Selection depends on design requirements and supplier availability.

Q: Are all substitute parts available in the same packaging format?

A: The original 1812HC471MAT1A is available in standard packaging. Both substitute parts (1812HC471KAT1A and KGM43ER73U471KV) are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Verify packaging requirements for your production process.

Q: Do tolerance differences affect circuit performance?

A: Tolerance differences (±20% versus ±10%) affect capacitance accuracy. Applications requiring precise capacitance values benefit from ±10% tolerance parts. For general purpose high voltage applications, both tolerance levels are functionally acceptable if circuit design accounts for the specified tolerance range.

Q: Are all parts RoHS3 compliant?

A: Yes. All three parts (1812HC471MAT1A, 1812HC471KAT1A, and KGM43ER73U471KV) maintain ROHS3 compliance and are suitable for applications requiring environmental and regulatory compliance.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All parts share identical 1812 (4532 Metric) package dimensions (0.181" L x 0.126" W, 0.071" thickness) and Surface Mount MLCC mounting type, ensuring direct PCB footprint compatibility without layout modifications.