1825AC472MAT9A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1825AC472MAT9A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 4700 pF, rated for 1000V operation, and featuring X7R temperature stability across -55°C to 125°C. This surface-mount multilayer ceramic capacitor (MLCC) in 1825 package format is designed for general-purpose high-voltage applications. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide alternative voltage ratings while maintaining identical capacitance, package dimensions, and core electrical characteristics for applications requiring higher voltage margins or different tolerance specifications.

Substiute Parts

1825AC472MAT9A

KYOCERA AVXIn Stock: 11281825AC472MAT9A Datasheet

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1825HC472KAT1A

KYOCERA AVXIn Stock: 24471825HC472KAT1A Datasheet

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1825WC472KAT1A

KYOCERA AVXIn Stock: 9141825WC472KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1825AC472MAT9A are qualified based on the following criteria:

Identical Parameters (Non-Negotiable):

• Capacitance: 4700 pF (exact match required)
• Package / Case: 1825 (4564 Metric) (physical and electrical compatibility)
• Temperature Coefficient: X7R (thermal stability requirement)
• Operating Temperature Range: -55°C to 125°C (functional range)
• Mounting Type: Surface Mount, MLCC (assembly compatibility)
• Physical Dimensions: 4.50mm L × 6.40mm W × 2.54mm Max Thickness (PCB layout compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)

Variable Parameters (Substitution Basis):

• Voltage Rating: Substitutes rated at 2500V or 3000V provide higher voltage margins while maintaining all other specifications
• Tolerance: Substitutes with ±10% tolerance offer tighter capacitance control compared to the ±20% specification of the main part

The identified substitutes (1825HC472KAT1A and 1825WC472KAT1A) maintain complete electrical and mechanical compatibility while offering enhanced voltage performance and improved tolerance specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—1825AC472MAT9A, 1825HC472KAT1A, and 1825WC472KAT1A—are active production components from KYOCERA AVX with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on circuit voltage requirements:

1825AC472MAT9A is appropriate for applications with maximum operating voltages up to 1000V and where ±20% capacitance tolerance is acceptable.

1825WC472KAT1A provides a mid-range voltage rating of 2500V with improved ±10% tolerance, suitable for applications requiring higher voltage margins than 1000V while maintaining the same physical footprint.

1825HC472KAT1A offers the highest voltage rating at 3000V with ±10% tolerance, providing maximum voltage headroom for high-voltage circuit designs while maintaining identical package dimensions and thermal characteristics.

All substitutes are pin-compatible and require no PCB layout modifications. Selection should be based on the maximum voltage stress expected in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can 1825HC472KAT1A or 1825WC472KAT1A be used as direct replacements for 1825AC472MAT9A?

A: Yes. Both substitute parts maintain identical capacitance (4700 pF), package dimensions (1825 / 4564 Metric), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), and mounting type (Surface Mount, MLCC). The higher voltage ratings (3000V and 2500V respectively) are electrically compatible with circuits designed for 1000V operation.

Q: What is the difference between the two substitute parts?

A: 1825HC472KAT1A is rated for 3000V, while 1825WC472KAT1A is rated for 2500V. Both offer ±10% tolerance compared to the main part's ±20% tolerance. Selection depends on the maximum voltage stress in your application.

Q: Are there any PCB layout or assembly considerations when substituting these parts?

A: No. All three parts share identical physical dimensions (4.50mm L × 6.40mm W × 2.54mm maximum thickness) and the same 1825 package format. No PCB modifications or requalification of assembly processes are required.

Q: Do the substitute parts have the same moisture sensitivity rating?

A: Yes. All three parts have MSL 1 (Unlimited) moisture sensitivity level, requiring identical handling, storage, and reflow procedures.

Q: Are all parts ROHS3 compliant?

A: Yes. The main part 1825AC472MAT9A and both substitutes (1825HC472KAT1A and 1825WC472KAT1A) are ROHS3 compliant and REACH unaffected.