1812CC473MAT1A Equivalent & Substitute Parts

Part Overview

The 1812CC473MAT1A is a 0.047 µF ceramic capacitor rated at 630V with X7R temperature coefficient, manufactured by KYOCERA AVX in 1812 (4532 Metric) surface mount package. This high-voltage MLCC is designed for general-purpose applications requiring stable capacitance across operating temperatures from -55°C to 125°C. The part is currently active and ROHS3 compliant with MSL 1 rating.

Equivalent and substitute parts are identified when they maintain the same capacitance value, voltage rating, temperature coefficient, and package footprint while potentially offering improvements in tolerance, voltage headroom, or design status.

Substiute Parts

1812CC473MAT1A\SB

KYOCERA AVXIn Stock: 10951812CC473MAT1A\SB Datasheet

Current PartRFQ

1812CC473KAT1A

KYOCERA AVXIn Stock: 12331812CC473KAT1A Datasheet

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SMK432B7473MM-T

Taiyo YudenIn Stock: 2077SMK432B7473MM-T Datasheet

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C1812C473KDRAC7800

KEMETIn Stock: 40135C1812C473KDRAC7800 Datasheet

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GRM43DR73A473KW01L

Murata ElectronicsIn Stock: 20476GRM43DR73A473KW01L Datasheet

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SMK432B7473KM-T

Taiyo YudenIn Stock: 1486SMK432B7473KM-T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution relationships are established based on the following criteria:

Direct Equivalents (Same Voltage Rating - 630V):

• Same capacitance: 0.047 µF
• Same voltage rating: 630V
• Same temperature coefficient: X7R
• Same package: 1812 (4532 Metric)
• Tolerance may improve from ±20% to ±10%
• Product status may vary

Upgraded Equivalents (Higher Voltage Rating - 1000V/1kV):

• Same capacitance: 0.047 µF
• Higher voltage rating: 1000V (1kV) instead of 630V
• Same temperature coefficient: X7R
• Same package: 1812 (4532 Metric)
• Tolerance improves to ±10%
• Provides voltage margin for circuit protection

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs:

• 1812CC473KAT1A (KYOCERA AVX): Direct equivalent with improved ±10% tolerance and active product status. Recommended for new designs requiring 630V rating.
• C1812C473KDRAC7800 (KEMET): Active status with 1000V rating provides additional voltage margin. Suitable when circuit design permits higher voltage component.
• GRM43DR73A473KW01L (Murata Electronics): Active status with 1000V rating and ±10% tolerance. Established alternative from major manufacturer.

For Legacy or Constrained Designs:

• SMK432B7473KM-T (Taiyo Yuden): Marked "Not For New Designs" but available with ±10% tolerance at 630V rating. Use only when existing designs require this specific part.
• SMK432B7473MM-T (Taiyo Yuden): Marked "Not For New Designs" with ±20% tolerance matching original part. Suitable only for legacy system maintenance.

Compliance Considerations: All listed parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status. No compliance barriers exist for substitution.

Frequently Asked Questions (FAQ)

Q: Can 1812CC473KAT1A directly replace 1812CC473MAT1A? A: Yes. Both are KYOCERA AVX parts with identical capacitance (0.047 µF), voltage rating (630V), temperature coefficient (X7R), and package (1812). The substitute offers improved ±10% tolerance versus ±20%, with active product status.

Q: What is the advantage of using C1812C473KDRAC7800 or GRM43DR73A473KW01L? A: Both parts provide 1000V rating instead of 630V while maintaining 0.047 µF capacitance and X7R characteristics. This 370V margin above the original rating provides additional circuit protection and design flexibility. Both are active products with ±10% tolerance.

Q: Are SMK432B7473KM-T and SMK432B7473MM-T suitable for new designs? A: No. Both Taiyo Yuden parts carry "Not For New Designs" status. They are available for legacy system support or maintenance only. Use active alternatives for new development.

Q: Does package size differ between substitutes? A: All parts use 1812 (4532 Metric) package with identical footprint. Physical dimensions vary slightly in thickness: original and KYOCERA AVX substitute at 1.80mm, Taiyo Yuden parts at 2.70mm, KEMET at 1.20mm, and Murata at 2.20mm. Verify PCB assembly clearance for height-constrained applications.

Q: Are there any compliance or certification differences? A: All parts are ROHS3 compliant with MSL 1 (Unlimited) rating. REACH status is unaffected for all substitutes. No compliance barriers exist for cross-manufacturer substitution.

Q: What packaging formats are available? A: Original part is supplied in bulk. Substitutes are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats, standard for production assembly. Confirm packaging compatibility with assembly equipment.