2220J1K00331MXT Equivalent & Substitute Parts

Part Overview

The 2220J1K00331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 1000V (1kV) operation with X7R temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) in 2220 package format is designed for general purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is ROHS3 compliant, REACH unaffected, and carries unlimited moisture sensitivity level (MSL 1), indicating suitability for standard storage and handling conditions. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when design requirements permit higher voltage ratings or improved tolerance specifications.

Substiute Parts

2220J1K00331MXT

Knowles SyferIn Stock: 11222220J1K00331MXT Datasheet

Current PartRFQ

C2220C331JFGAC7800

KEMETIn Stock: 2956C2220C331JFGAC7800 Datasheet

MFR RecommendedRFQ

C2220C331KFGAC7800

KEMETIn Stock: 1250C2220C331KFGAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2220J1K00331MXT is determined by the following critical parameters: identical capacitance value (330 pF), compatible package format (2220 / 5750 Metric), matching mounting type (Surface Mount MLCC), and voltage rating equal to or exceeding 1000V. The identified substitute parts from KEMET maintain the same physical footprint and capacitance specification while offering enhanced voltage ratings (1500V) and improved tolerance characteristics (±5% and ±10% versus ±20%). Both substitute parts operate within the same temperature range (-55°C to 125°C), maintain MSL 1 classification, and satisfy ROHS3 and REACH compliance requirements. The primary distinction between substitutes lies in tolerance specification and temperature coefficient classification (C0G/NP0 versus X7R), which affects frequency and temperature stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both KEMET substitute parts (C2220C331JFGAC7800 and C2220C331KFGAC7800) are qualified alternatives to the 2220J1K00331MXT based on electrical and mechanical compatibility. The substitutes provide higher voltage ratings (1500V versus 1000V), enabling use in applications with elevated voltage stress margins. C2220C331JFGAC7800 offers the tightest tolerance specification (±5%), suitable for precision applications where capacitance accuracy is critical. C2220C331KFGAC7800 provides intermediate tolerance (±10%) with equivalent voltage performance. Both substitutes employ C0G/NP0 temperature coefficient, which delivers superior frequency and temperature stability compared to the X7R characteristic of the original part. The reduced thickness of substitute parts (0.061" versus 0.098") may provide design advantages in space-constrained applications. All three parts maintain identical compliance certifications (ROHS3, REACH Unaffected) and unlimited moisture sensitivity classification, ensuring equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can C2220C331JFGAC7800 or C2220C331KFGAC7800 be used as direct replacements for 2220J1K00331MXT?

A: Yes. Both KEMET parts are electrically and mechanically compatible. They share identical capacitance (330 pF), package format (2220), mounting type (Surface Mount MLCC), and operating temperature range (-55°C to 125°C). The higher voltage ratings (1500V) and improved tolerances (±5% and ±10%) represent performance enhancements rather than limitations.

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

A: X7R (original part) provides ±15% capacitance variation across the operating temperature range. C0G/NP0 (substitute parts) delivers superior stability with minimal capacitance change over temperature, making it preferable for applications requiring consistent performance across thermal extremes.

Q: Are the substitute parts physically compatible with the original PCB layout?

A: Yes. All three parts use the 2220 (5750 Metric) package with identical length (0.224" / 5.70mm) and width (0.197" / 5.00mm). The substitute parts are thinner (0.061" versus 0.098"), which presents no compatibility issues and may provide clearance advantages.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. Both C2220C331JFGAC7800 and C2220C331KFGAC7800 are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity), matching the original part exactly.

Q: Which substitute should be selected for maximum design margin?

A: C2220C331JFGAC7800 provides the highest voltage rating (1500V) and tightest tolerance (±5%), offering maximum performance margin. C2220C331KFGAC7800 provides equivalent voltage performance with relaxed tolerance (±10%) for cost-sensitive applications.