1812GA471MAT1A Equivalent & Substitute Parts

Part Overview

The 1812GA471MAT1A is a 470 pF high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated for 2000V (2kV) operation with C0G/NP0 temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose applications requiring stable capacitance across temperature ranges from -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Alternative equivalent and substitute parts are available to address specific design requirements including tolerance specifications, temperature coefficient preferences, and voltage rating upgrades.

Substiute Parts

1812GA471MAT1A

KYOCERA AVXIn Stock: 9731812GA471MAT1A Datasheet

Current PartRFQ

1812GA471JAT1A

KYOCERA AVXIn Stock: 33631812GA471JAT1A Datasheet

UpgradeRFQ

1812GC471KAT1A

KYOCERA AVXIn Stock: 24051812GC471KAT1A Datasheet

MFR RecommendedRFQ

1812HC471KAT1A

KYOCERA AVXIn Stock: 86941812HC471KAT1A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812GA471MAT1A is determined by the following critical parameters: capacitance value (470 pF), package type (1812/4532 Metric), mounting method (surface mount), operating temperature range (-55°C to 125°C), and compliance certifications (ROHS3, REACH Unaffected).

The substitute parts listed maintain identical capacitance, package dimensions, and mounting characteristics. Variations occur in three areas:

1. Tolerance: The main part specifies ±20% tolerance. Substitute 1812GA471JAT1A offers tighter ±5% tolerance for applications requiring higher precision.

2. Temperature Coefficient: The main part uses C0G/NP0 dielectric. Substitutes 1812GC471KAT1A and 1812HC471KAT1A employ X7R dielectric, which provides different temperature stability characteristics suitable for less stringent temperature coefficient requirements.

3. Voltage Rating: The main part is rated 2000V. Substitute 1812HC471KAT1A provides upgraded 3000V rating for applications requiring higher voltage margin or operating in elevated voltage environments.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and the same operating temperature range, ensuring compatibility with existing assembly and storage processes.

Parameter Comparison

Engineering Selection Recommendations

1812GA471JAT1A (Upgrade Substitute): Select this part when circuit design requires tighter capacitance tolerance (±5% versus ±20%). This upgrade maintains identical voltage rating, temperature coefficient (C0G/NP0), and package specifications while providing improved precision. All compliance certifications remain equivalent.

1812GC471KAT1A (MFR Recommended): This substitute is suitable for applications where X7R temperature coefficient performance is acceptable and tighter tolerance (±10%) is required. Voltage rating remains 2000V. Physical thickness is reduced to 0.071" (1.80mm) compared to the main part's 0.087" (2.20mm), which may provide board-level design advantages in space-constrained layouts. ROHS3 and MSL 1 compliance are maintained.

1812HC471KAT1A (MFR Recommended): This substitute provides upgraded 3000V voltage rating while maintaining 470 pF capacitance and ±10% tolerance. The X7R temperature coefficient and reduced thickness (0.071"/1.80mm) are identical to 1812GC471KAT1A. Select this part for circuits operating at elevated voltages or requiring higher voltage safety margin. All compliance certifications are equivalent.

All substitute parts are active products with confirmed inventory availability and maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can 1812GA471JAT1A directly replace 1812GA471MAT1A?

A: Yes. Both parts share identical capacitance (470 pF), voltage rating (2000V), temperature coefficient (C0G/NP0), package (1812/4532 Metric), and operating temperature range (-55°C to 125°C). The upgrade part offers tighter tolerance (±5% versus ±20%), which is a functional improvement with no compatibility issues.

Q: What is the difference between C0G/NP0 and X7R temperature coefficients?

A: C0G/NP0 provides superior temperature stability with minimal capacitance variation across the operating temperature range, suitable for precision applications. X7R offers broader temperature performance with slightly higher capacitance variation but remains stable across -55°C to 125°C. Selection depends on circuit tolerance requirements.

Q: Can I use 1812GC471KAT1A or 1812HC471KAT1A if my design specifies C0G/NP0?

A: No. These substitutes employ X7R dielectric, which has different temperature coefficient characteristics. Use only if circuit design permits X7R temperature coefficient performance or if tolerance requirements (±10%) are acceptable.

Q: What is the advantage of 1812HC471KAT1A's 3000V rating?

A: The 3000V rating provides 50% higher voltage margin compared to the 2000V main part, suitable for circuits operating at elevated voltages or requiring additional safety margin. All other electrical and mechanical parameters remain compatible.

Q: Do the thickness differences affect PCB assembly?

A: The main part and 1812GA471JAT1A are 0.087" (2.20mm) thick. Substitutes 1812GC471KAT1A and 1812HC471KAT1A are 0.071" (1.80mm) thick. Verify PCB design clearances and reflow profile compatibility. Thinner parts may provide layout advantages in space-constrained designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts, including the main part and all substitutes, are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory compliance and identical storage/handling requirements.