1812CC683MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812CC683MAT1A is a 0.068 µF high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated for 630V operation with X7R temperature coefficient characteristics. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package format is designed for general-purpose applications requiring stable capacitance across the -55°C to 125°C operating temperature range. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, indicating robust reliability for standard manufacturing environments. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

1812CC683MAT1A\SB

KYOCERA AVXIn Stock: 8831812CC683MAT1A\SB Datasheet

Current PartRFQ

1812CC683KAT1A

KYOCERA AVXIn Stock: 55791812CC683KAT1A Datasheet

UpgradeRFQ

GRM43QR72J683KW01L

Murata ElectronicsIn Stock: 3406GRM43QR72J683KW01L Datasheet

UpgradeRFQ

C4532X7R2J683M160KA

TDK CorporationIn Stock: 1596C4532X7R2J683M160KA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812CC683MAT1A is determined by strict equivalence across the following critical parameters:

• Capacitance Value: Must be 0.068 µF
• Voltage Rating: Must be 630V or higher
• Temperature Coefficient: Must be X7R
• Package Format: Must be 1812 (4532 Metric)
• Mounting Type: Must be Surface Mount, MLCC
• Compliance: Must maintain ROHS3 and REACH Unaffected status

Tolerance variations (±10% vs ±20%) and dimensional differences within the 1812 package envelope do not preclude substitution, as these fall within acceptable manufacturing and application parameters. Product status (Active vs Not For New Designs) is noted for design planning purposes but does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

1812CC683KAT1A (KYOCERA AVX) - This upgrade substitute offers improved tolerance specification (±10% vs ±20%) while maintaining identical electrical ratings, package dimensions, and compliance certifications. Both parts are Active status products. This represents a direct upgrade path with enhanced capacitance accuracy.

GRM43QR72J683KW01L (Murata Electronics) - This upgrade substitute provides ±10% tolerance with identical electrical specifications. Dimensional variations include reduced length (4.50mm vs 4.60mm) and significantly reduced thickness (1.50mm vs 2.20mm). These dimensional differences remain within the 1812 (4532 Metric) package classification and do not affect electrical performance or PCB footprint compatibility. Active product status supports new design implementation.

C4532X7R2J683M160KA (TDK Corporation) - This manufacturer-recommended substitute maintains ±20% tolerance matching the original part. Dimensional variations include reduced length (4.50mm vs 4.60mm) and reduced thickness (1.80mm vs 2.20mm). The part carries "Not For New Designs" status, indicating it remains available for legacy system support and replacement applications but is not recommended for new product development initiatives.

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can 1812CC683KAT1A replace 1812CC683MAT1A in existing designs?

A: Yes. Both parts share identical capacitance (0.068 µF), voltage rating (630V), temperature coefficient (X7R), package format (1812/4532 Metric), and physical footprint. The substitute offers improved tolerance (±10% vs ±20%), representing an upgrade. Both are Active status products.

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

A: Tolerance defines the acceptable deviation range from the nominal 0.068 µF capacitance value. ±20% allows deviation from 0.054 µF to 0.082 µF, while ±10% restricts deviation to 0.061 µF to 0.075 µF. Applications requiring tighter capacitance control benefit from ±10% tolerance parts.

Q: Are the dimensional differences between substitute parts significant?

A: Dimensional variations (length 4.60mm vs 4.50mm, thickness 2.20mm vs 1.50mm or 1.80mm) remain within the 1812 (4532 Metric) package specification. PCB footprints designed for 1812 packages accommodate these variations. Verify clearance in applications with height-constrained layouts, particularly where the thinner GRM43QR72J683KW01L (1.50mm) is substituted for the original 1812CC683MAT1A (2.20mm).

Q: Why is C4532X7R2J683M160KA marked "Not For New Designs"?

A: This designation indicates the part remains available for legacy system support and field replacements but is not recommended for new product development. Active alternatives (1812CC683KAT1A and GRM43QR72J683KW01L) are preferred for new designs.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All parts listed are ROHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing environments and regulatory requirements.

Q: Can these parts be used interchangeably in high-voltage applications?

A: Yes. All parts are rated for 630V operation with X7R temperature coefficient, maintaining stable capacitance across -55°C to 125°C. Electrical performance is equivalent across all listed substitutes.