1812CC333MAT1A\SB Equivalent & Substitute Parts

Part Overview

The 1812CC333MAT1A\SB is a 0.033 µF ceramic capacitor rated at 630V with X7R temperature coefficient, manufactured by KYOCERA AVX. This surface mount multilayer ceramic capacitor (MLCC) in 1812 (4532 metric) package is designed for general purpose high voltage applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

1812CC333MAT1A\SB

KYOCERA AVXIn Stock: 7511812CC333MAT1A\SB Datasheet

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1812CC333KAT1A

KYOCERA AVXIn Stock: 32561812CC333KAT1A Datasheet

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GRM43DR73A333KW01L

Murata ElectronicsIn Stock: 2959GRM43DR73A333KW01L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812CC333MAT1A\SB are qualified based on the following criteria:

Core Electrical Parameters (Must Match):

• Capacitance: 0.033 µF
• Temperature Coefficient: X7R
• Operating Temperature Range: -55°C to 125°C
• Package / Case: 1812 (4532 Metric)
• Mounting Type: Surface Mount, MLCC

Allowable Variations:

• Voltage Rating: Equal to or greater than 630V
• Tolerance: Equal to or tighter than ±20%
• Physical dimensions: Within 1812 package specification
• Compliance: ROHS3 and MSL 1 maintained

The identified substitutes meet these criteria while offering improved tolerance specifications or higher voltage ratings, providing design flexibility for component sourcing.

Parameter Comparison

Engineering Selection Recommendations

1812CC333KAT1A (KYOCERA AVX): This substitute offers tighter tolerance (±10% versus ±20%) while maintaining identical voltage rating, temperature coefficient, and package specifications. Both parts are manufactured by KYOCERA AVX and carry ROHS3 compliance with MSL 1 rating. Selection of this part provides improved capacitance accuracy without design modification.

GRM43DR73A333KW01L (Murata Electronics): This substitute provides a higher voltage rating (1000V versus 630V) with tighter tolerance (±10%) and maintains X7R temperature coefficient and operating temperature range. Physical dimensions show minor variation: length 4.50mm (versus 4.60mm) and increased thickness 2.20mm (versus 1.80mm). This part is suitable for applications requiring higher voltage margin or when Murata sourcing is preferred. ROHS3 compliance and MSL 1 rating are maintained.

Both substitutes are active production parts with full compliance certifications matching the original specification.

Frequently Asked Questions (FAQ)

Q: Can 1812CC333KAT1A directly replace 1812CC333MAT1A\SB?

A: Yes. Both parts share identical capacitance (0.033 µF), voltage rating (630V), temperature coefficient (X7R), package (1812), and operating temperature range (-55°C to 125°C). The substitute offers improved tolerance (±10% versus ±20%), making it a direct functional replacement.

Q: What is the advantage of GRM43DR73A333KW01L?

A: This part provides higher voltage rating (1000V versus 630V) and tighter tolerance (±10%). It is suitable for designs requiring additional voltage margin or when Murata component sourcing is specified. Minor physical dimension differences (length 4.50mm, thickness 2.20mm) must be verified against PCB layout constraints.

Q: Are there physical dimension concerns with the Murata substitute?

A: The GRM43DR73A333KW01L has slightly different dimensions: length 4.50mm (versus 4.60mm) and thickness 2.20mm (versus 1.80mm). Verify PCB footprint and clearance specifications before selection, particularly for thickness-constrained applications.

Q: Do all substitutes maintain compliance certifications?

A: Yes. All three parts are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity) rating. REACH status is unaffected for all parts.

Q: Which substitute should be selected for general sourcing flexibility?

A: 1812CC333KAT1A provides the most direct replacement with identical specifications and improved tolerance. GRM43DR73A333KW01L is selected when higher voltage rating or Murata sourcing is required.