C1812C331MZGAC7800 Equivalent & Substitute Parts

Part Overview

The C1812C331MZGAC7800 is a surface-mount multilayer ceramic capacitor (MLCC) manufactured by KEMET, rated at 330 pF capacitance 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 in active production status with 956 units in stock. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and component sourcing options when the primary part number becomes unavailable or when design specifications permit tolerance upgrades.

Substiute Parts

C1812C331MZGAC7800

KEMETIn Stock: 984C1812C331MZGAC7800 Datasheet

Current PartRFQ

C1812C331JZGAC7800

KEMETIn Stock: 1407C1812C331JZGAC7800 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the C1812C331MZGAC7800 is based on strict electrical and mechanical parameter matching:

Capacitance Value: The substitute part must maintain 330 pF capacitance. This parameter is non-negotiable for circuit function.

Voltage Rating: The substitute part must equal or exceed 2500V. Lower voltage ratings are not acceptable; higher ratings provide additional safety margin.

Temperature Coefficient: Both the main part and substitute must use C0G/NP0 temperature coefficient to ensure stable capacitance performance across the -55°C to 125°C operating range.

Package and Mounting: The 1812 (4532 Metric) surface-mount package must be maintained for PCB layout and assembly compatibility.

Tolerance: The main part specifies ±20% tolerance. Substitute parts with tighter tolerance (±5%) are acceptable as they provide improved circuit accuracy without requiring design changes.

Compliance and Status: Both parts must maintain ROHS3 compliance, MSL 1 rating, and active production status to ensure long-term availability and regulatory adherence.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (C1812C331MZGAC7800): Select this part when ±20% tolerance is acceptable for the application and cost optimization is a priority. The part is in active production with 956 units currently in stock, ensuring immediate availability.

Substitute Part (C1812C331JZGAC7800): Select this part when circuit design requires tighter capacitance tolerance (±5%) for improved accuracy and stability. This substitute provides enhanced performance characteristics while maintaining identical electrical ratings, package dimensions, and compliance certifications. The substitute has higher inventory availability (1342 units in stock).

Selection Criteria:

• Both parts maintain ROHS3 compliance and MSL 1 rating, meeting regulatory and environmental requirements
• Both parts are manufactured by KEMET within the SMD Comm C0G HV series, ensuring consistent quality and reliability
• Substitution is valid for any application where the main part is specified, provided tolerance requirements permit the upgrade to ±5%
• No design modifications, PCB layout changes, or assembly process adjustments are required when substituting between these parts

Frequently Asked Questions (FAQ)

Q: Can C1812C331JZGAC7800 be used as a direct replacement for C1812C331MZGAC7800?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (2500V), temperature coefficient (C0G/NP0), package (1812/4532 Metric), and physical dimensions. The substitute offers tighter tolerance (±5% versus ±20%), which improves circuit accuracy without requiring design changes.

Q: What is the difference between these two part numbers?

A: The primary difference is tolerance specification. The C1812C331MZGAC7800 uses ±20% tolerance (indicated by "M" in the part number), while the C1812C331JZGAC7800 uses ±5% tolerance (indicated by "J" in the part number). All other electrical and mechanical parameters are identical.

Q: Are there any PCB layout or assembly considerations when switching between these parts?

A: No. Both parts use the identical 1812 (4532 Metric) surface-mount package with matching dimensions (0.177" L x 0.126" W x 0.071" max thickness). PCB footprints, reflow profiles, and assembly processes remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both C1812C331MZGAC7800 and C1812C331JZGAC7800 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected for high-precision applications?

A: The C1812C331JZGAC7800 (±5% tolerance) is the appropriate choice for applications requiring tighter capacitance tolerance and improved circuit stability. The ±20% tolerance of the main part is suitable for general-purpose applications where tolerance variation is acceptable.

Q: Are both parts in active production?

A: Yes. Both parts maintain active production status with KEMET. Current inventory shows 956 units of C1812C331MZGAC7800 and 1342 units of C1812C331JZGAC7800 in stock.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 125°C with C0G/NP0 temperature coefficient, ensuring stable capacitance performance throughout this temperature range.