0805AC221MAT1A Equivalent & Substitute Parts

Part Overview

The 0805AC221MAT1A is a 220 pF ceramic capacitor rated for 1000V (1kV) with X7R temperature coefficient, manufactured by KYOCERA AVX in 0805 (2012 Metric) surface mount package. This component is designed for general-purpose high-voltage applications requiring stable capacitance across operating temperatures from -55°C to 125°C. The part is currently active and available in production quantities. Substitute parts may be required due to inventory constraints, lead time considerations, or specific application requirements for improved tolerance or temperature stability characteristics.

Substiute Parts

0805AC221MAT1A

KYOCERA AVXIn Stock: 10120805AC221MAT1A Datasheet

Current PartRFQ

C0805C221JDGAC7800

KEMETIn Stock: 3522C0805C221JDGAC7800 Datasheet

UpgradeRFQ

C0805C221KDRAC7800

KEMETIn Stock: 3478C0805C221KDRAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0805AC221MAT1A is determined by the following critical parameters:

• Capacitance Value: Must be 220 pF
• Voltage Rating: Must be 1000V (1kV) or higher
• Package: Must be 0805 (2012 Metric) surface mount
• Operating Temperature Range: Must support -55°C to 125°C
• Mounting Type: Must be Surface Mount, MLCC
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The substitute parts listed below meet all these critical parameters. Variations in tolerance and temperature coefficient (X7R versus C0G/NP0) represent functional upgrades that maintain full compatibility while offering improved performance characteristics for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both KEMET substitute parts are direct functional equivalents to the 0805AC221MAT1A and maintain full compatibility across all critical electrical and mechanical parameters. Selection between the three options depends on application-specific requirements:

C0805C221KDRAC7800 (KEMET, X7R, ±10%) provides the closest match to the original part specification, offering X7R temperature coefficient with improved tolerance performance. This part is recommended for applications requiring direct substitution with enhanced capacitance stability.

C0805C221JDGAC7800 (KEMET, C0G/NP0, ±5%) offers superior tolerance (±5%) and C0G/NP0 temperature coefficient, which provides superior temperature stability and lower capacitance drift across the operating range. This part is suitable for precision applications where tighter capacitance tolerance and minimal temperature-dependent variation are required.

All three parts are ROHS3 compliant, carry MSL 1 rating, and are currently in active production status with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can C0805C221JDGAC7800 or C0805C221KDRAC7800 be used as direct replacements for 0805AC221MAT1A?

A: Yes. Both KEMET parts are direct functional equivalents. They share identical capacitance value (220 pF), voltage rating (1000V), package format (0805/2012 Metric), operating temperature range (-55°C to 125°C), and compliance certifications. Physical dimensions are within acceptable tolerances for PCB assembly.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients?

A: X7R temperature coefficient allows capacitance variation of ±15% across the -55°C to 125°C operating range. C0G/NP0 provides superior stability with minimal capacitance drift across temperature. C0G/NP0 is preferred for precision timing, filtering, and coupling applications where temperature stability is critical.

Q: Are there physical compatibility concerns when substituting these parts?

A: The KEMET parts (C0805C221JDGAC7800 and C0805C221KDRAC7800) have slightly smaller length dimensions (2.00mm versus 2.10mm) and reduced thickness (1.40mm versus 1.45mm) compared to the KYOCERA AVX original. These dimensional differences are within standard 0805 package tolerances and do not affect PCB assembly or electrical performance.

Q: Do all three parts meet the same compliance and environmental standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, carry MSL 1 (unlimited moisture sensitivity), and are classified as EAR99 for export control purposes. All parts are currently in active production status.

Q: Which substitute part should be selected for high-reliability applications?

A: Both KEMET substitutes are suitable for high-reliability applications. C0805C221KDRAC7800 maintains the X7R specification of the original part. C0805C221JDGAC7800 offers enhanced tolerance and temperature stability through C0G/NP0 characteristics, making it preferable for applications requiring superior performance margins.