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 applications requiring high-voltage performance across industrial and electronic equipment. The part maintains active product status with 744 units currently in stock. Substitute parts are identified to address inventory availability, tolerance improvements, or series-specific requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

1812HC471MAT3A

KYOCERA AVXIn Stock: 8451812HC471MAT3A Datasheet

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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 1812HC471MAT3A are qualified based on the following critical parameters that determine functional interchangeability:

Mandatory Matching Parameters:

• Capacitance value: 470 pF (exact match required)
• Voltage rating: 3000V (3kV) minimum
• Temperature coefficient: X7R
• Package format: 1812 (4532 Metric)
• Mounting type: Surface Mount, MLCC
• Physical dimensions: 0.181" L × 0.126" W, 0.071" max thickness
• Operating temperature range: -55°C to 125°C
• Compliance: ROHS3 Compliant, REACH Unaffected

Allowable Variations:

• Tolerance: ±20% (main part) to ±10% (substitute parts) — tighter tolerance is acceptable
• Packaging format: Bulk to Tape & Reel (TR)
• Series designation: Standard to specialized series (KGM - HV)

The two identified substitute parts meet all mandatory parameters while offering improved tolerance specifications and alternative packaging configurations suitable for high-volume production environments.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and full compliance with ROHS3 and REACH requirements, confirming their suitability for current and future production environments.

1812HC471KAT1A provides improved tolerance specification (±10% versus ±20%) while maintaining identical electrical and mechanical characteristics. This part is available in significantly higher inventory (8662 units) and is packaged in Tape & Reel format, supporting automated assembly processes. Selection of this part is appropriate when tighter capacitance tolerance is required or when high-volume production efficiency is prioritized.

KGM43ER73U471KV represents the KGM - HV series variant, also offering ±10% tolerance with equivalent electrical performance. This part is available in Tape & Reel packaging with 1135 units in stock. The series designation indicates optimization for high-voltage applications. Selection of this part is appropriate when series-specific qualification or high-voltage application specialization is required.

The original 1812HC471MAT3A remains suitable for applications where ±20% tolerance is acceptable and bulk packaging is preferred.

Frequently Asked Questions (FAQ)

Q: Can 1812HC471KAT1A or KGM43ER73U471KV be used as direct replacements for 1812HC471MAT3A?

A: Yes. Both substitute parts are direct replacements. They maintain identical capacitance (470 pF), voltage rating (3000V), temperature coefficient (X7R), package format (1812), and physical dimensions. The primary differences are improved tolerance (±10% versus ±20%) and packaging format (Tape & Reel versus bulk).

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 470 pF value. The ±20% specification permits values between 376 pF and 564 pF, while ±10% restricts values to 423 pF to 517 pF. Applications requiring tighter capacitance control should specify the ±10% variants.

Q: Are there any differences in high-voltage performance between these parts?

A: No. All three parts are rated for 3000V operation with identical X7R temperature coefficient and -55°C to 125°C operating range. The KGM43ER73U471KV series designation indicates optimization for high-voltage applications, but electrical performance specifications are equivalent.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging is suitable for manual assembly or small-volume production. Tape & Reel packaging is designed for automated pick-and-place assembly systems, offering improved handling efficiency and reduced labor in high-volume manufacturing environments.

Q: Are all parts compliant with current environmental regulations?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, confirming compliance with current environmental and hazardous substance restrictions.

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

A: Yes. Identical package format (1812), mounting type (Surface Mount, MLCC), and physical dimensions ensure mechanical and electrical interchangeability on the same PCB layout without design modifications.