1825AC473MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1825AC473MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated at 0.047 µF with 1000V (1kV) operating voltage and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across a wide temperature range (-55°C to 125°C). The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this product category.

Substiute Parts

1825AC473MAT1A\SB

KYOCERA AVXIn Stock: 8721825AC473MAT1A\SB Datasheet

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1825AC473KAT1A

KYOCERA AVXIn Stock: 23661825AC473KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1825AC473MAT1A is determined by strict equivalence in the following critical parameters:

• Capacitance Value: Must be 0.047 µF (no deviation permitted)
• Voltage Rating: Must be 1000V (1kV) or higher
• Temperature Coefficient: Must be X7R (ensures stable performance across -55°C to 125°C)
• Package / Case: Must be 1825 (4564 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Physical Dimensions: Must match 4.50mm L × 6.40mm W footprint
• Compliance: Must maintain ROHS3 and REACH compliance status

The 1825AC473KAT1A qualifies as a direct substitute based on these parameters. The primary distinction is the capacitance tolerance specification, which is tighter (±10%) compared to the main part (±20%), representing an upgrade in precision without affecting functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 1825AC473MAT1A and 1825AC473KAT1A are active production parts from KYOCERA AVX with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on tolerance requirements for the specific application:

• 1825AC473MAT1A (±20% tolerance): Suitable for general-purpose applications where standard tolerance capacitance variation is acceptable.
• 1825AC473KAT1A (±10% tolerance): Recommended for applications requiring tighter capacitance accuracy and more stable performance characteristics.

Both parts share identical electrical ratings, temperature performance, and mechanical compatibility. The choice between them depends solely on the tolerance specification required by the circuit design and application specifications.

Frequently Asked Questions (FAQ)

Q: Can 1825AC473KAT1A replace 1825AC473MAT1A in existing designs?

A: Yes. The 1825AC473KAT1A is a direct substitute with identical electrical and mechanical specifications. The tighter tolerance (±10% vs ±20%) represents an upgrade in precision and does not create compatibility issues.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 1825 (4564 Metric) package with identical footprint dimensions of 4.50mm L × 6.40mm W and maximum thickness of 2.54mm. PCB layout and assembly processes require no modification.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both 1825AC473MAT1A and 1825AC473KAT1A are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) rating.

Q: What is the primary difference between these substitute parts?

A: The capacitance tolerance specification. The 1825AC473MAT1A has ±20% tolerance, while the 1825AC473KAT1A has ±10% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts currently available in production?

A: Yes. Both parts maintain active production status with KYOCERA AVX.

Q: Can these parts be used interchangeably in high-voltage applications?

A: Yes. Both parts are rated for 1000V (1kV) operation with X7R temperature coefficient stability across -55°C to 125°C, making them suitable for equivalent high-voltage general-purpose applications.