1812SC472MAT3A Ceramic Capacitor: Equivalent & Substitute Parts

Part Overview

The 1812SC472MAT3A is a 4700 pF high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated for 1500V (1.5kV) 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 currently active in production and ROHS3 compliant. Substitute parts are identified to address higher voltage ratings, improved tolerance specifications, or alternative packaging configurations while maintaining core electrical and mechanical compatibility.

Substiute Parts

1812SC472MAT3A

KYOCERA AVXIn Stock: 10111812SC472MAT3A 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 1812SC472MAT3A are qualified based on the following criteria:

Mandatory Compatibility Parameters:

• Capacitance: 4700 pF (exact match required)
• Temperature Coefficient: X7R (maintains temperature stability characteristics)
• Package / Case: 1812 (4532 Metric) (ensures PCB footprint compatibility)
• Mounting Type: Surface Mount, MLCC (maintains assembly process compatibility)
• Operating Temperature Range: -55°C to 125°C (minimum requirement)
• Physical Dimensions: 0.181" L × 0.126" W (4.60mm × 3.20mm) (footprint compatibility)

Allowable Variation Parameters:

• Voltage Rating: May be equal to or higher than 1500V (1.5kV) (uprating is acceptable)
• Tolerance: May be ±20% or tighter (±10%) (improved tolerance is acceptable)
• Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR) (assembly-dependent selection)
• Thickness: Slight variation acceptable within mechanical constraints (2.20mm to 2.21mm)

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

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (1812GC472KAT1A, 1812GC472MAT1A, and KGM43FR73D472KV) are qualified replacements for the 1812SC472MAT3A based on maintained electrical and mechanical compatibility. Selection among substitutes should be determined by application-specific requirements:

1812GC472KAT1A provides a 2kV voltage rating with improved ±10% tolerance and is available in Cut Tape (CT) & Digi-Reel® packaging, suitable for applications requiring tighter capacitance tolerance and higher voltage margin.

1812GC472MAT1A provides a 2kV voltage rating with ±20% tolerance matching the original part and is available in Tape & Reel (TR) format, suitable for high-volume automated assembly processes.

KGM43FR73D472KV from the KGM - HV series provides a 2kV voltage rating with improved ±10% tolerance and is available in Tape & Reel (TR) format, suitable for applications requiring both higher voltage rating and tighter tolerance specifications.

All parts maintain ROHS3 compliance, MSL 1 rating, and active production status, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can 1812GC472KAT1A be used as a direct replacement for 1812SC472MAT3A?

A: Yes. Both parts share identical capacitance (4700 pF), temperature coefficient (X7R), package format (1812 / 4532 Metric), physical dimensions (0.181" L × 0.126" W), and operating temperature range (-55°C to 125°C). The 1812GC472KAT1A provides a higher voltage rating (2kV vs. 1.5kV) and improved tolerance (±10% vs. ±20%), making it a direct electrical and mechanical substitute.

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

A: Both parts have identical electrical specifications (4700 pF, X7R, 2kV, -55°C to 125°C) and physical dimensions. The primary differences are tolerance (1812GC472MAT1A is ±20%, 1812GC472KAT1A is ±10%) and packaging format (1812GC472MAT1A is Tape & Reel, 1812GC472KAT1A is Cut Tape & Digi-Reel®). Selection depends on assembly process requirements and tolerance specifications.

Q: Is KGM43FR73D472KV compatible with the original 1812SC472MAT3A footprint?

A: Yes. KGM43FR73D472KV maintains the same 1812 (4532 Metric) package format and physical dimensions (0.181" L × 0.126" W) as the original part. Thickness is 0.087" (2.21mm) compared to 0.087" (2.20mm) for the original, a negligible 0.01mm variation that does not affect PCB assembly compatibility.

Q: Why would I select a substitute part with higher voltage rating?

A: Higher voltage-rated capacitors provide increased safety margin in applications subject to voltage transients or overvoltage conditions. The 2kV-rated substitutes (1812GC472KAT1A, 1812GC472MAT1A, KGM43FR73D472KV) offer improved reliability in demanding environments while maintaining identical capacitance and temperature characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts (1812GC472KAT1A, 1812GC472MAT1A, and KGM43FR73D472KV) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original 1812SC472MAT3A specifications.

Q: What packaging format should I select for high-volume production?

A: Tape & Reel (TR) format is standard for high-volume automated assembly. Both 1812GC472MAT1A and KGM43FR73D472KV are available in Tape & Reel format. Cut Tape (CT) & Digi-Reel® format (1812GC472KAT1A) is suitable for lower-volume or mixed-component assembly processes.