1812SC472MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SC472MAT1A is a 4700 pF high-voltage ceramic capacitor manufactured by KYOCERA AVX with an X7R temperature coefficient and 1500V rated voltage. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 metric) package is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is active in production, ROHS3 compliant, and carries unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when design requirements allow for higher voltage ratings, improved tolerance specifications, or alternative packaging formats while maintaining the same capacitance value and physical footprint.

Substiute Parts

1812SC472MAT1A

KYOCERA AVXIn Stock: 10481812SC472MAT1A 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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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812SC472MAT1A are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 4700 pF (exact match required)
• Temperature Coefficient: X7R (ensures equivalent temperature stability)
• Package / Case: 1812 (4532 Metric) (maintains PCB footprint compatibility)
• Physical Dimensions: 4.60mm L × 3.20mm W (ensures mechanical fit)
• Mounting Type: Surface Mount, MLCC (maintains assembly compatibility)
• Operating Temperature Range: -55°C to 125°C (equivalent thermal performance)

Allowable Variation Parameters:

• Voltage Rating: May be increased from 1500V to 2000V (provides design margin without affecting lower-voltage applications)
• Tolerance: May be improved from ±20% to ±10% (tighter tolerance is backward compatible)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (both are standard SMD packaging)

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and active product status.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and unlimited moisture sensitivity rating, making them suitable for direct replacement in applications where the original 1812SC472MAT1A is specified.

1812GC472KAT1A offers improved tolerance (±10% versus ±20%) and elevated voltage rating (2000V versus 1500V) in Cut Tape and Digi-Reel® packaging. This part is appropriate for designs requiring tighter capacitance control or higher voltage margins.

1812GC472MAT1A provides the same tolerance improvement and voltage upgrade as 1812GC472KAT1A while maintaining Tape & Reel packaging, matching the original part's packaging format.

KGM43FR73D472KV is part of the KGM HV series and delivers ±10% tolerance with 2000V rating in Tape & Reel packaging. Maximum thickness is 2.21mm, representing a negligible 0.01mm increase from the original specification.

Selection between substitute parts depends on packaging requirements (Cut Tape versus Tape & Reel), tolerance specifications, and voltage margin requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can 1812GC472KAT1A replace 1812SC472MAT1A in my design?

A: Yes. Both parts share identical capacitance (4700 pF), temperature coefficient (X7R), package (1812), and operating temperature range (-55°C to 125°C). The substitute offers improved tolerance (±10% versus ±20%) and higher voltage rating (2000V versus 1500V). The primary difference is packaging format: 1812GC472KAT1A uses Cut Tape & Digi-Reel® while the original uses Tape & Reel.

Q: What is the difference between 1812GC472MAT1A and 1812GC472KAT1A?

A: Both parts are identical in electrical specifications (4700 pF, ±10%, 2000V, X7R, -55°C to 125°C) and physical dimensions. The difference is packaging: 1812GC472MAT1A is supplied in Tape & Reel (TR) format, while 1812GC472KAT1A is supplied in Cut Tape (CT) & Digi-Reel® format. Select based on your assembly equipment and procurement requirements.

Q: Why would I choose KGM43FR73D472KV over the other substitutes?

A: KGM43FR73D472KV is part of the KGM HV (high-voltage) series and provides the same electrical performance as 1812GC472KAT1A and 1812GC472MAT1A. Selection depends on supplier availability, lead time, pricing, and whether your procurement system recognizes the KGM series designation.

Q: Is the 0.01mm thickness difference in KGM43FR73D472KV significant?

A: No. KGM43FR73D472KV has a maximum thickness of 2.21mm compared to 2.20mm for other parts. This 0.01mm difference is within typical manufacturing tolerances and does not affect PCB assembly or mechanical fit.

Q: Can I use a 2000V-rated substitute in a 1500V application?

A: Yes. A higher voltage-rated capacitor is backward compatible with lower-voltage applications. The 2000V substitutes (1812GC472KAT1A, 1812GC472MAT1A, KGM43FR73D472KV) can be used in any circuit designed for 1500V or lower.

Q: Are all these parts ROHS3 compliant?

A: Yes. The original part 1812SC472MAT1A and all substitute parts (1812GC472KAT1A, 1812GC472MAT1A, KGM43FR73D472KV) are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating.