1812HC471MAT3A Equivalent & Substitute Parts

Part Overview

The 1812HC471MAT3A 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 multilayer ceramic capacitor (MLCC) 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 is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, inventory optimization, and design continuity.

Substiute Parts

1812HC471MAT3A\SB

KYOCERA AVXIn Stock: 8691812HC471MAT3A\SB Datasheet

Current PartRFQ

1812HC471KAT1A

KYOCERA AVXIn Stock: 86941812HC471KAT1A Datasheet

UpgradeRFQ

KGM43ER73U471KV

KYOCERA AVXIn Stock: 1150KGM43ER73U471KV Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812HC471MAT3A is determined by strict equivalence in the following critical parameters:

• 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)
• Package Format: 1812 (4532 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount, MLCC (PCB assembly compatibility)
• Operating Temperature Range: -55°C to 125°C (functional equivalence)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (regulatory alignment)

The identified substitute parts maintain all critical electrical and mechanical parameters. Tolerance variations (±20% to ±10%) represent an upgrade path where tighter tolerance specifications are available without compromising functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—1812HC471MAT3A, 1812HC471KAT1A, and KGM43ER73U471KV—are functionally equivalent for high-voltage ceramic capacitor applications requiring 470 pF capacitance at 3kV rating in 1812 package format. Selection between these parts may be based on the following factors:

1812HC471MAT3A: Standard tolerance (±20%) specification. Suitable for general-purpose applications where capacitance variation within ±20% is acceptable. Active production status with full ROHS3 and REACH compliance.

1812HC471KAT1A: Upgraded tolerance specification (±10%) from the same manufacturer. Provides tighter capacitance control for applications requiring improved accuracy. Packaged in Tape & Reel format. Active production status with full ROHS3 and REACH compliance.

KGM43ER73U471KV: High-voltage series variant (KGM - HV) with ±10% tolerance. Designed specifically for high-voltage applications. Packaged in Tape & Reel format. Active production status with full ROHS3 and REACH compliance.

All parts maintain identical electrical performance, physical dimensions, and regulatory compliance. Selection should be based on procurement availability, packaging requirements (bulk vs. Tape & Reel), tolerance specifications, and application-specific accuracy demands.

Frequently Asked Questions (FAQ)

Q: Can 1812HC471KAT1A replace 1812HC471MAT3A in existing designs?

A: Yes. Both parts share identical capacitance (470 pF), voltage rating (3kV), temperature coefficient (X7R), package format (1812), and operating temperature range (-55°C to 125°C). The primary difference is tolerance specification (±10% vs. ±20%), which represents an upgrade in capacitance accuracy.

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

A: Both parts have identical electrical specifications (470 pF, ±10%, 3kV, X7R, 1812 package). KGM43ER73U471KV is designated as part of the KGM - HV (high-voltage) series, indicating optimization for high-voltage applications. Physical dimensions and performance characteristics are equivalent.

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

A: 1812HC471MAT3A is available in standard packaging. Both 1812HC471KAT1A and KGM43ER73U471KV are packaged in Tape & Reel (TR) format, which is standard for automated assembly processes. Verify packaging requirements for your procurement and assembly workflow.

Q: Do tolerance differences affect circuit performance?

A: Tolerance differences (±20% vs. ±10%) affect the range of acceptable capacitance values. For applications where precise capacitance is critical, the ±10% tolerance parts (1812HC471KAT1A or KGM43ER73U471KV) provide tighter control. For general-purpose applications, ±20% tolerance is typically acceptable.

Q: Are all parts RoHS and REACH compliant?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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

A: Yes. All three parts have identical physical dimensions (0.181" L × 0.126" W, 4.60mm × 3.20mm), thickness (0.071", 1.80mm), and surface-mount footprint (1812 package). They are mechanically and electrically interchangeable for PCB assembly purposes.