1812AC103MATBE Equivalent & Substitute Parts

Part Overview

The 1812AC103MATBE is a 10000 pF (10 nF) ceramic capacitor manufactured by KYOCERA AVX, rated for 1000V (1kV) with X7R temperature coefficient and ±20% tolerance. This surface mount multilayer ceramic capacitor (MLCC) in 1812 (4532 metric) package is designed for general purpose high voltage applications. The part is currently active in production with 721 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

1812AC103MATBE

KYOCERA AVXIn Stock: 7571812AC103MATBE Datasheet

Current PartRFQ

KGM43FR73A103MV

KYOCERA AVXIn Stock: 2821KGM43FR73A103MV Datasheet

DirectRFQ

1812AC103KAT1A

KYOCERA AVXIn Stock: 26421812AC103KAT1A Datasheet

UpgradeRFQ

C1812C103KDRAC7800

KEMETIn Stock: 12307C1812C103KDRAC7800 Datasheet

UpgradeRFQ

C4532X7R3A103K200KA

TDK CorporationIn Stock: 86903C4532X7R3A103K200KA Datasheet

UpgradeRFQ

C1812C103MDRAC7800

KEMETIn Stock: 2130C1812C103MDRAC7800 Datasheet

MFR RecommendedRFQ

C4532X7S3A103K160KA

TDK CorporationIn Stock: 1359C4532X7S3A103K160KA Datasheet

MFR RecommendedRFQ

VPDR102W103M1GV001E

Johanson Dielectrics Inc.In Stock: 865VPDR102W103M1GV001E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812AC103MATBE are classified based on strict electrical and mechanical parameter alignment:

Direct Equivalent (Same Specifications):

• KGM43FR73A103MV (KYOCERA AVX): Identical capacitance, tolerance, voltage, and temperature coefficient. Differs only in packaging format (Tape & Reel vs. standard packaging) and thickness tolerance (2.21mm vs. 2.20mm maximum).
• C1812C103MDRAC7800 (KEMET): Identical capacitance, tolerance, voltage, and temperature coefficient. Packaging in Tape & Reel format. Thickness 1.55mm (thinner profile). Low ESL feature.

Upgraded Tolerance (±10% vs. ±20%):

• 1812AC103KAT1A (KYOCERA AVX): Tighter tolerance specification (±10%) with identical voltage, temperature coefficient, and package. Represents performance upgrade.
• C1812C103KDRAC7800 (KEMET): ±10% tolerance upgrade with Low ESL feature. Slightly smaller footprint (4.50mm length vs. 4.60mm). Thinner profile (1.55mm).
• C4532X7R3A103K200KA (TDK Corporation): ±10% tolerance upgrade. Slightly smaller footprint (4.50mm length). Standard thickness (2.20mm).

Temperature Coefficient Variant (X7S vs. X7R):

• C4532X7S3A103K160KA (TDK Corporation): X7S temperature coefficient (tighter capacitance stability over temperature range) with ±10% tolerance. Slightly different thickness (1.80mm).

Alternate Manufacturer (Same Specifications):

• VPDR102W103M1GV001E (Johanson Dielectrics Inc.): Identical capacitance, tolerance, voltage, and temperature coefficient. Cut Tape packaging. Thicker profile (2.80mm). Specified for SMPS filtering applications.

Substitution is valid when: (1) capacitance matches exactly, (2) voltage rating equals or exceeds the original, (3) temperature coefficient is X7R or equivalent, (4) tolerance is equal or tighter, (5) package type is 1812 (4532 metric), and (6) all compliance certifications are maintained.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original 1812AC103MATBE. Selection criteria are based on product status (all active), compliance certifications, and provided electrical specifications.

Direct Replacement (No Design Changes Required): KGM43FR73A103MV and C1812C103MDRAC7800 provide direct electrical equivalence with identical capacitance, tolerance, voltage, and temperature coefficient. These are suitable for one-to-one substitution in existing designs. KGM43FR73A103MV maintains KYOCERA AVX sourcing continuity. C1812C103MDRAC7800 offers higher inventory availability (12273 pieces) and thinner profile (1.55mm) for space-constrained applications.

Upgraded Performance (Tighter Tolerance): 1812AC103KAT1A, C1812C103KDRAC7800, and C4532X7R3A103K200KA provide ±10% tolerance improvement over the original ±20% specification. These upgrades are applicable when circuit design requires tighter capacitance control. C4532X7R3A103K200KA offers the highest inventory level (86839 pieces) among all substitutes.

Temperature Coefficient Variant: C4532X7S3A103K160KA uses X7S temperature coefficient instead of X7R, providing tighter capacitance stability across the operating temperature range. This variant is suitable only when circuit performance benefits from reduced capacitance drift over temperature. X7S specification represents a design change and requires verification against circuit requirements.

Alternate Packaging: VPDR102W103M1GV001E is supplied in Cut Tape format with thicker profile (2.80mm). This part is specified for SMPS filtering applications and is suitable when application-specific performance characteristics align with design needs.

Frequently Asked Questions (FAQ)

Q: Can I use KGM43FR73A103MV as a direct replacement for 1812AC103MATBE? A: Yes. KGM43FR73A103MV is electrically and mechanically equivalent with identical capacitance (10000 pF), tolerance (±20%), voltage rating (1000V), and temperature coefficient (X7R). The only difference is packaging format (Tape & Reel) and maximum thickness tolerance (2.21mm vs. 2.20mm), which does not affect circuit performance.

Q: What is the difference between X7R and X7S temperature coefficients? A: Both X7R and X7S are temperature coefficient classifications for ceramic capacitors. X7R specifies capacitance change of ±15% over -55°C to 125°C. X7S specifies tighter capacitance change of ±22% over the same range but with different stability characteristics. X7S is suitable when tighter temperature stability is required. Substitution from X7R to X7S requires circuit verification.

Q: Why do some substitute parts have ±10% tolerance instead of ±20%? A: ±10% tolerance represents a tighter manufacturing specification than ±20%. Parts with ±10% tolerance (1812AC103KAT1A, C1812C103KDRAC7800, C4532X7R3A103K200KA) are suitable upgrades when circuit design requires more precise capacitance values. These parts are backward compatible with designs specified for ±20% tolerance.

Q: Can I use C1812C103KDRAC7800 if my PCB layout requires a thinner component? A: Yes. C1812C103KDRAC7800 has a maximum thickness of 0.061" (1.55mm) compared to the original 0.087" (2.20mm), making it suitable for space-constrained designs. Electrical specifications remain identical (10000 pF, ±10%, 1000V, X7R), and the thinner profile does not affect circuit performance.

Q: Which substitute part has the highest inventory availability? A: C4532X7R3A103K200KA (TDK Corporation) has the highest inventory with 86839 pieces in stock. This part provides ±10% tolerance upgrade with identical voltage and temperature coefficient specifications.

Q: Is VPDR102W103M1GV001E suitable for general purpose applications? A: VPDR102W103M1GV001E is specified for SMPS filtering applications. While it meets the electrical requirements (10000 pF, ±20%, 1000V, X7R), its thicker profile (2.80mm) and Cut Tape packaging make it less suitable for general purpose applications where standard 1812 package dimensions are expected. Use only when application-specific requirements align with SMPS filtering specifications.

Q: Do all substitute parts maintain the same RoHS and REACH compliance? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance status of the original 1812AC103MATBE.