KYOCERA AVX 1812AC472MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The KYOCERA AVX 1812AC472MAT1A is a 4700 pF high-voltage ceramic capacitor rated at 1000V (1kV) with X7R temperature coefficient, housed in a 1812 (4532 Metric) surface-mount package. This component is designed for general-purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching or exceeding electrical specifications while maintaining mechanical compatibility with the 1812 package footprint.

Substiute Parts

1812AC472MAT1A\SB

KYOCERA AVXIn Stock: 10131812AC472MAT1A\SB Datasheet

Current PartRFQ

1812AC472KAT1A

KYOCERA AVXIn Stock: 33901812AC472KAT1A Datasheet

UpgradeRFQ

1812GC472KAT1A

KYOCERA AVXIn Stock: 77511812GC472KAT1A Datasheet

UpgradeRFQ

1812GC472MAT1A

KYOCERA AVXIn Stock: 41431812GC472MAT1A Datasheet

UpgradeRFQ

KGM43FR73D472KV

KYOCERA AVXIn Stock: 3679KGM43FR73D472KV Datasheet

UpgradeRFQ

C1812C472KDRAC7800

KEMETIn Stock: 55149C1812C472KDRAC7800 Datasheet

UpgradeRFQ

C4532X7R3A472K160KA

TDK CorporationIn Stock: 2152C4532X7R3A472K160KA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812AC472MAT1A is determined by the following criteria:

Primary Compatibility Requirements:

• Capacitance value: 4700 pF (exact match required)
• Temperature coefficient: X7R (maintains specified temperature stability)
• Package / Case: 1812 (4532 Metric) (ensures mechanical and electrical footprint compatibility)
• Mounting type: Surface Mount, MLCC (maintains assembly compatibility)
• Operating temperature range: -55°C to 125°C (minimum requirement)

Allowable Parameter Variations:

• Voltage rating: Equal to or greater than 1000V (1kV) is acceptable; higher ratings provide design margin
• Tolerance: ±10% or ±20% are both acceptable; tighter tolerance (±10%) represents an upgrade
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) variations are interchangeable in production environments
• Manufacturer: Different manufacturers meeting identical electrical and mechanical specifications are functionally equivalent

Compliance Requirements:

• RoHS3 compliance maintained across all substitutes
• REACH Unaffected status consistent
• MSL 1 rating preserved

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply-chain continuity with the original 1812AC472MAT1A specification.

Direct Equivalents (1000V Rating):

• 1812AC472KAT1A (KYOCERA AVX): Identical voltage rating with improved ±10% tolerance. Recommended for applications where tighter capacitance tolerance enhances circuit performance.
• C1812C472KDRAC7800 (KEMET): Equivalent 1000V rating with ±10% tolerance and reduced thickness (0.061" vs. 0.071"), providing design flexibility for space-constrained layouts.
• C4532X7R3A472K160KA (TDK Corporation): Equivalent 1000V rating with ±10% tolerance, maintaining standard 1812 package dimensions.

Upgraded Substitutes (2000V Rating):

• 1812GC472MAT1A (KYOCERA AVX): Doubled voltage rating (2000V) with matching ±20% tolerance. Suitable for applications requiring enhanced voltage margin or operating in higher-voltage environments.
• 1812GC472KAT1A (KYOCERA AVX): Doubled voltage rating (2000V) with improved ±10% tolerance and Cut Tape packaging option.
• KGM43FR73D472KV (KYOCERA AVX): Doubled voltage rating (2000V) from the KGM HV series with ±10% tolerance, designed for high-voltage applications.

All substitutes maintain the -55°C to 125°C operating temperature range, X7R temperature coefficient, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 1812AC472MAT1A with a 2000V-rated part in a 1000V application? A: Yes. Higher voltage ratings are backward-compatible with lower-voltage circuit requirements. The 2000V-rated substitutes (1812GC472MAT1A, 1812GC472KAT1A, KGM43FR73D472KV) provide additional voltage margin and are electrically suitable for 1000V applications.

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 between 3760 pF and 5640 pF; ±10% allows deviation between 4230 pF and 5170 pF. Tighter tolerance (±10%) is beneficial for precision circuits but not required for general-purpose applications.

Q: Are KYOCERA AVX, KEMET, and TDK Corporation parts interchangeable? A: Yes, when electrical specifications (capacitance, voltage, tolerance, temperature coefficient) and mechanical parameters (package, footprint) are identical. All listed substitutes meet these criteria and are functionally equivalent.

Q: Does package thickness affect PCB assembly? A: Package thickness variations (0.061" to 0.087") are within standard 1812 package tolerances and do not affect PCB assembly compatibility. Verify clearance in your specific layout if space constraints exist.

Q: What does "Tape & Reel (TR)" vs. "Cut Tape (CT)" packaging mean? A: Both are surface-mount packaging formats. Tape & Reel is standard for high-volume automated assembly; Cut Tape is used for lower-volume or manual assembly. Electrical performance is identical; selection depends on production volume and assembly equipment.

Q: Is the 1812AC472MAT1A still in production? A: Yes, the part maintains Active product status with 989 pieces in current inventory. All listed substitutes also maintain Active status with higher inventory levels, ensuring supply availability.