1812CC472MAT3A\SB Equivalent & Substitute Parts

Part Overview

The 1812CC472MAT3A\SB is a 4700 pF ceramic capacitor manufactured by KYOCERA AVX with a rated voltage of 630V and X7R temperature coefficient. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package is designed for general-purpose high-voltage applications. The part is currently active and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when design requirements necessitate higher voltage ratings, improved tolerance specifications, or alternative packaging formats while maintaining the same capacitance value and physical footprint compatibility.

Substiute Parts

1812CC472MAT3A\SB

KYOCERA AVXIn Stock: 8851812CC472MAT3A\SB Datasheet

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1812AC472KAT1A

KYOCERA AVXIn Stock: 33901812AC472KAT1A Datasheet

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1812GC472KAT1A

KYOCERA AVXIn Stock: 77511812GC472KAT1A Datasheet

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1812GC472MAT1A

KYOCERA AVXIn Stock: 41431812GC472MAT1A Datasheet

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KGM43FR73D472KV

KYOCERA AVXIn Stock: 3679KGM43FR73D472KV Datasheet

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C4532X7R3A472K160KA

TDK CorporationIn Stock: 2152C4532X7R3A472K160KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812CC472MAT3A\SB are grouped based on the following substitution criteria:

Maintained Parameters (Non-Negotiable for Substitution):

• Capacitance: 4700 pF (exact match required)
• Temperature Coefficient: X7R (identical thermal stability)
• Package / Case: 1812 (4532 Metric) (physical footprint compatibility)
• Mounting Type: Surface Mount, MLCC (assembly compatibility)
• Operating Temperature Range: -55°C to 125°C (functional equivalence)
• RoHS Status: ROHS3 Compliant (regulatory compliance)
• MSL Rating: 1 (Unlimited) (moisture handling equivalence)

Variable Parameters (Allowed to Differ):

• Voltage Rating: 630V, 1000V (1kV), or 2000V (2kV) — higher ratings provide design margin
• Tolerance: ±20% or ±10% — tighter tolerance available in upgrade options
• Thickness: 0.071" (1.80mm) or 0.087" (2.20mm) or 0.087" (2.21mm) — minor variation acceptable for 2kV rated parts
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® — logistics variation only
• Manufacturer: KYOCERA AVX or TDK Corporation — both suppliers meet compliance requirements

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating): No direct equivalent exists at 630V with identical specifications. The 1812CC472MAT3A\SB is the baseline reference part.

For Voltage Upgrade (Higher Reliability Margin):

• 1812AC472KAT1A (KYOCERA AVX, 1kV): Provides 1.59× voltage margin over the original 630V rating. Tolerance improves to ±10%. Maintains 0.071" thickness. Suitable for designs requiring enhanced voltage headroom.
• C4532X7R3A472K160KA (TDK Corporation, 1kV): Cross-manufacturer alternative with identical thickness and ±10% tolerance. Dimensions vary slightly (0.177" L vs. 0.181" L). Verify PCB layout compatibility before substitution.

For Maximum Voltage Margin (2kV Rating):

• 1812GC472KAT1A (KYOCERA AVX, 2kV, ±10%): Highest voltage rating with tightest tolerance. Thickness increases to 0.087". Provides 3.17× voltage margin.
• 1812GC472MAT1A (KYOCERA AVX, 2kV, ±20%): Maintains ±20% tolerance matching the original part. Thickness increases to 0.087". Provides 3.17× voltage margin with tolerance consistency.
• KGM43FR73D472KV (KYOCERA AVX, 2kV, ±10%, KGM - HV Series): High-voltage specialized series. Thickness 0.087" (2.21mm). Provides 3.17× voltage margin with ±10% tolerance.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and -55°C to 125°C operating temperature range. Product status is active for all listed alternatives.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a direct substitute? A: Yes. A capacitor rated for higher voltage (1kV or 2kV) is electrically compatible in a circuit designed for 630V operation. The higher voltage rating provides additional safety margin and does not degrade circuit performance. Physical dimensions and mounting compatibility must be verified.

Q: What is the difference between ±20% and ±10% tolerance? A: Tolerance specifies the allowable deviation from the nominal 4700 pF capacitance value. ±20% allows deviation from 3760 pF to 5640 pF. ±10% allows deviation from 4230 pF to 5170 pF. Tighter tolerance (±10%) is preferred for precision circuits where capacitance accuracy is critical.

Q: Does the increased thickness of 2kV parts affect PCB assembly? A: The thickness increase from 0.071" (1.80mm) to 0.087" (2.20mm or 2.21mm) is minimal and typically accommodated by standard PCB design clearances. Verify component height clearance in your specific assembly environment, particularly if space constraints exist above the component.

Q: Are KYOCERA AVX and TDK Corporation parts interchangeable? A: Both manufacturers produce X7R ceramic capacitors meeting identical electrical specifications and compliance standards. The C4532X7R3A472K160KA (TDK) is electrically equivalent to KYOCERA AVX 1kV alternatives. Minor dimensional variations exist (length 0.177" vs. 0.181"). Verify PCB footprint compatibility before substitution.

Q: What does MSL 1 (Unlimited) mean? A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry MSL 1 rating, ensuring consistent moisture tolerance across substitutions.

Q: Can I substitute based on packaging format alone? A: Packaging format (Tape & Reel, Cut Tape, or Bulk) affects logistics and assembly automation but does not impact electrical performance. Substitution based on packaging format alone is valid only when all electrical and physical parameters remain identical.