KEMET C1808C331MZGAC7800 Equivalent & Substitute Parts

Part Overview

The KEMET C1808C331MZGAC7800 is a surface-mount multilayer ceramic capacitor (MLCC) rated at 330 pF with 2500V (2.5kV) voltage rating and C0G/NP0 temperature coefficient. This high-voltage ceramic capacitor 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). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this product category.

Substiute Parts

C1808C331MZGAC7800

KEMETIn Stock: 777C1808C331MZGAC7800 Datasheet

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C1808C331JZGAC7800

KEMETIn Stock: 1221C1808C331JZGAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the C1808C331MZGAC7800 is determined by strict equivalence in the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 330 pF (exact match required)
• Voltage rating: 2500V minimum (2.5kV)
• Temperature coefficient: C0G/NP0 (required for temperature stability)
• Package / Case: 1808 (4520 Metric) (required for mechanical fit)
• Mounting type: Surface Mount, MLCC (required for assembly compatibility)
• Physical dimensions: 4.70mm L × 2.00mm W × 2.15mm Max Thickness (required for PCB layout)

Allowable Variation Parameter:

• Tolerance: The main part specifies ±20% tolerance. Substitute parts with tighter tolerance specifications (such as ±5%) are acceptable as they represent improved performance within the same electrical classification and do not compromise circuit design requirements.

All substitute parts must maintain active product status, ROHS3 compliance, and MSL 1 rating to ensure manufacturing availability and regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

The C1808C331JZGAC7800 is a direct substitute for the C1808C331MZGAC7800 based on electrical and mechanical equivalence. Both parts are manufactured by KEMET, maintain identical capacitance, voltage rating, temperature coefficient, and package specifications. The substitute part features a tighter tolerance specification (±5% versus ±20%), which provides improved capacitance accuracy without introducing any incompatibility with the original design.

Both parts maintain active product status, ensuring continued manufacturing availability. Both are ROHS3 compliant and carry MSL 1 rating, confirming regulatory alignment and unlimited moisture sensitivity handling. The substitute part is suitable for direct replacement in applications where the original part is specified, with the added benefit of improved tolerance performance.

Frequently Asked Questions (FAQ)

Q: Can C1808C331JZGAC7800 be used as a direct replacement for C1808C331MZGAC7800?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (2500V), temperature coefficient (C0G/NP0), package (1808 / 4520 Metric), and physical dimensions. The substitute part features tighter tolerance (±5% versus ±20%), which is compatible with circuit designs specified for the original part.

Q: What is the significance of the tolerance difference between these parts?

A: The main part specifies ±20% tolerance, while the substitute specifies ±5% tolerance. Tighter tolerance indicates improved capacitance accuracy. Both tolerances are acceptable for general-purpose applications. The substitute part provides enhanced precision without requiring design modifications.

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

A: Yes. Both parts are rated for 2500V (2.5kV) operation and feature C0G/NP0 temperature coefficient, which ensures stable capacitance performance across the -55°C to 125°C operating range. Both parts are classified as high-voltage ceramic capacitors suitable for general-purpose applications.

Q: Do these parts have identical physical dimensions and mounting compatibility?

A: Yes. Both parts use the 1808 (4520 Metric) package with dimensions of 4.70mm length × 2.00mm width × 2.15mm maximum thickness. Both are surface-mount MLCCs with identical footprints, ensuring direct PCB layout compatibility.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity) rating. Both maintain active product status, confirming current manufacturing availability and regulatory alignment.

Q: What is the difference in part numbering between these two parts?

A: The part numbers differ in the tolerance designation: C1808C331MZGAC7800 (±20% tolerance) versus C1808C331JZGAC7800 (±5% tolerance). The letter designation indicates the tolerance specification. All other parameters remain identical.