KYOCERA AVX 1812WC332MAT3A Equivalent & Substitute Parts

Part Overview

The KYOCERA AVX 1812WC332MAT3A is a high-voltage ceramic capacitor rated at 3300 pF with 2500V (2.5kV) operating voltage and X7R temperature coefficient. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package 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 product status with ROHS3 compliance and MSL 1 rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory optimization, and application-specific performance requirements.

Substiute Parts

1812WC332MAT3A
KYOCERA AVXIn Stock: 11801812WC332MAT3A Datasheet
1812WC332MAT3A
Current Part
1812HC332KAT1A
KYOCERA AVXIn Stock: 70741812HC332KAT1A Datasheet
1812HC332KAT1A
Upgrade

Key Parameters

Parameter Value
Capacitance 3300 pF
Voltage - Rated 2500V (2.5kV)
Tolerance ±20%
Temperature Coefficient X7R
Operating Temperature Range -55°C ~ 125°C
Package / Case 1812 (4532 Metric)
Mounting Type Surface Mount, MLCC
Size / Dimension 0.181" L x 0.126" W (4.60mm x 3.20mm)
Thickness (Max) 0.110" (2.80mm)
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

The 1812HC332KAT1A qualifies as a substitute for the 1812WC332MAT3A based on the following allowed substitution criteria:

Matching Parameters:

  • Capacitance: 3300 pF (identical)
  • Temperature Coefficient: X7R (identical)
  • Operating Temperature Range: -55°C ~ 125°C (identical)
  • Package / Case: 1812 (4532 Metric) (identical)
  • Mounting Type: Surface Mount, MLCC (identical)
  • Physical Dimensions: 0.181" L x 0.126" W, 0.110" max thickness (identical)
  • RoHS Status: ROHS3 Compliant (identical)
  • Moisture Sensitivity Level: 1 (Unlimited) (identical)
  • Product Status: Active (identical)

Upgrade Parameters:

  • Voltage - Rated: 3000V (3kV) vs. 2500V (2.5kV) — higher voltage rating
  • Tolerance: ±10% vs. ±20% — tighter tolerance specification

The 1812HC332KAT1A represents an upgrade substitute with enhanced electrical performance characteristics while maintaining full mechanical and thermal compatibility.

Parameter Comparison

Parameter 1812WC332MAT3A (Main Part) 1812HC332KAT1A (Substitute)
Manufacturer KYOCERA AVX KYOCERA AVX
Capacitance 3300 pF 3300 pF
Tolerance ±20% ±10%
Voltage - Rated 2500V (2.5kV) 3000V (3kV)
Temperature Coefficient X7R X7R
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Package / Case 1812 (4532 Metric) 1812 (4532 Metric)
Mounting Type Surface Mount, MLCC Surface Mount, MLCC
Size / Dimension 0.181" L x 0.126" W (4.60mm x 3.20mm) 0.181" L x 0.126" W (4.60mm x 3.20mm)
Thickness (Max) 0.110" (2.80mm) 0.110" (2.80mm)
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Product Status Active Active
Packaging - Tape & Reel (TR)

Engineering Selection Recommendations

Both the 1812WC332MAT3A and 1812HC332KAT1A are Active products with ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. The 1812HC332KAT1A offers enhanced electrical specifications with a higher voltage rating (3000V vs. 2500V) and improved tolerance (±10% vs. ±20%), making it suitable for applications requiring greater voltage margin or tighter capacitance control. Selection between these parts should be based on circuit voltage requirements and tolerance specifications. Both parts maintain identical mechanical compatibility and thermal performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 1812HC332KAT1A replace the 1812WC332MAT3A in existing designs?

A: Yes. The 1812HC332KAT1A is mechanically and thermally compatible with identical package dimensions, mounting type, and operating temperature range. The higher voltage rating and tighter tolerance represent performance enhancements rather than compatibility limitations.

Q: What are the key differences between these two parts?

A: The primary differences are voltage rating (3000V vs. 2500V) and capacitance tolerance (±10% vs. ±20%). All other electrical, thermal, and mechanical parameters are identical.

Q: Are both parts suitable for high-voltage applications?

A: Both parts are rated for high-voltage operation. The 1812WC332MAT3A is rated to 2500V, while the 1812HC332KAT1A is rated to 3000V. Selection depends on circuit voltage requirements.

Q: Do these parts have the same moisture sensitivity level?

A: Yes. Both parts have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: What is the difference in packaging between these parts?

A: The 1812WC332MAT3A packaging is listed as standard, while the 1812HC332KAT1A is supplied in Tape & Reel (TR) format. Both are suitable for automated assembly processes.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the 1812WC332MAT3A and 1812HC332KAT1A are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory standards.

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