Equivalent & Substitute Parts for 1812CC332MAT3A\SB

Part Overview

The 1812CC332MAT3A\SB is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 3300 pF, rated at 630V, and featuring X7R temperature coefficient characteristics. This component is classified as an Active product with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part is designed for general-purpose applications requiring surface-mount multilayer ceramic capacitor (MLCC) technology in the 1812 (4532 Metric) package format. Substitute parts are identified when equivalent electrical performance can be maintained within the constraints of the application circuit while meeting or exceeding the original specifications.

Substiute Parts

1812CC332MAT3A\SB

KYOCERA AVXIn Stock: 8421812CC332MAT3A\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 1812CC332MAT3A\SB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 3300 pF (exact match required)
• Temperature Coefficient: X7R (ensures stable capacitance across operating temperature range)
• Package / Case: 1812 (4532 Metric) (ensures mechanical and electrical compatibility with PCB layout)
• Mounting Type: Surface Mount, MLCC (maintains assembly process compatibility)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 630V (higher voltage rating provides design margin and reliability enhancement)
• Tolerance: May be equal to or tighter than ±20% (tighter tolerance improves circuit performance)
• Thickness: May vary within PCB assembly constraints (1812 package allows thickness variation)
• RoHS and REACH Compliance: Must maintain or exceed original compliance status

The substitute part 1812HC332KAT1A meets all mandatory matching parameters while providing enhanced voltage rating (3000V vs. 630V) and improved tolerance (±10% vs. ±20%), making it a valid upgrade substitute for applications where these enhancements are compatible with circuit design requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812CC332MAT3A\SB and 1812HC332KAT1A are Active products with full RoHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

The 1812HC332KAT1A substitute part provides two engineering advantages over the main part:

1. Enhanced Voltage Rating: The 3000V rating provides a 4.76x safety margin compared to the 630V original specification, reducing stress on the dielectric material and extending component lifetime in high-voltage applications.

2. Improved Tolerance: The ±10% tolerance specification provides tighter capacitance control compared to the ±20% tolerance of the original part, resulting in more predictable circuit performance and reduced design margin requirements.

The substitute part exhibits increased thickness (2.80mm vs. 1.80mm), which must be verified for compatibility with PCB assembly constraints and available board space. Both parts maintain identical footprint dimensions (0.181" L x 0.126" W) and are compatible with standard surface-mount assembly processes.

Selection between these parts depends on application-specific requirements for voltage margin, tolerance precision, and available PCB thickness allocation.

Frequently Asked Questions (FAQ)

Q: Can the 1812HC332KAT1A substitute for the 1812CC332MAT3A\SB in any application?

A: The 1812HC332KAT1A is electrically compatible as a substitute when the application circuit can accommodate the increased component thickness (2.80mm vs. 1.80mm). The higher voltage rating and tighter tolerance are compatible with all applications designed for the original part.

Q: What is the significance of the X7R temperature coefficient?

A: X7R temperature coefficient indicates that capacitance variation remains within ±15% across the full operating temperature range of -55°C to 125°C. Both parts maintain this specification, ensuring stable circuit performance across environmental conditions.

Q: Are both parts suitable for high-voltage applications?

A: The 1812CC332MAT3A\SB is rated for 630V applications. The 1812HC332KAT1A is rated for 3000V applications. Selection depends on the specific voltage requirements of the circuit. The higher-rated part provides additional design margin in high-voltage environments.

Q: What does the ±20% and ±10% tolerance specification mean?

A: Tolerance specifies the allowable deviation of actual capacitance from the nominal 3300 pF value. The ±20% tolerance allows actual values between 2640 pF and 3960 pF. The ±10% tolerance allows actual values between 2970 pF and 3630 pF. Tighter tolerance improves circuit predictability.

Q: Are there any PCB assembly considerations when substituting these parts?

A: The primary consideration is component thickness. The substitute part (2.80mm) is thicker than the original (1.80mm). Verify that PCB assembly equipment and available board space accommodate this dimension. Both parts use identical footprint dimensions and are compatible with standard surface-mount reflow processes.

Q: Do both parts meet current regulatory compliance requirements?

A: Both parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and use in regulated markets.