Equivalent & Substitute Parts for 2220J1K20331MXT

Part Overview

The 2220J1K20331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer, rated for 1200V (1.2kV) operation with X7R temperature coefficient characteristics. This surface mount multilayer ceramic capacitor (MLCC) in 2220 package format is designed for general purpose applications requiring high voltage performance. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

2220J1K20331MXT

Knowles SyferIn Stock: 8812220J1K20331MXT 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 2220J1K20331MXT is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 330 pF (exact match required)
• Package format: 2220 (5750 Metric) (exact match required)
• Mounting type: Surface Mount, MLCC (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• RoHS3 compliance status (exact match required)

Allowable Variation Parameters:

• Voltage rating: Equal to or greater than 1200V
• Tolerance: Equal to or tighter than ±20%
• Temperature coefficient: Alternative dielectric types (C0G/NP0) acceptable if voltage and tolerance requirements are met
• Physical thickness: May vary if within PCB assembly constraints

The identified substitute parts (C2220C331JFGAC7800 and C2220C331KFGAC7800) from KEMET maintain identical capacitance, package, and mounting specifications while offering enhanced voltage ratings (1500V) and improved tolerance specifications (±5% and ±10% respectively). Both substitutes employ C0G/NP0 temperature coefficient dielectrics, which provide superior stability compared to X7R characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both KEMET substitute parts maintain full compatibility with the original 2220J1K20331MXT specification while providing measurable performance enhancements. Selection between the original part and substitutes should be based on the following criteria:

Original Part (2220J1K20331MXT):

• Established supply chain and inventory availability (847 units in stock)
• X7R dielectric provides moderate capacitance stability across temperature range
• Suitable for applications where 1200V rating is sufficient

Substitute Part C2220C331JFGAC7800 (KEMET, ±5% tolerance):

• Enhanced voltage margin (1500V rating vs. 1200V)
• Superior capacitance tolerance (±5% vs. ±20%)
• C0G/NP0 dielectric offers improved temperature stability
• Reduced physical thickness (1.55mm vs. 2.50mm) for compact PCB layouts
• Higher inventory availability (2847 units in stock)

Substitute Part C2220C331KFGAC7800 (KEMET, ±10% tolerance):

• Enhanced voltage margin (1500V rating vs. 1200V)
• Improved capacitance tolerance (±10% vs. ±20%)
• C0G/NP0 dielectric offers improved temperature stability
• Reduced physical thickness (1.55mm vs. 2.50mm) for compact PCB layouts
• Adequate inventory availability (1199 units in stock)

All three parts carry ROHS3 compliance, EAR99 export classification, and unlimited moisture sensitivity rating. Direct PCB footprint compatibility is maintained across all options.

Frequently Asked Questions (FAQ)

Q: Can C2220C331JFGAC7800 or C2220C331KFGAC7800 be used as direct replacements for 2220J1K20331MXT?

A: Yes. Both KEMET parts are direct substitutes. They maintain identical capacitance (330 pF), package format (2220), and mounting type (surface mount MLCC). The substitutes offer higher voltage ratings (1500V vs. 1200V) and tighter tolerance specifications, making them functionally superior for the same application space.

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

A: C0G (also designated NP0) dielectrics provide superior temperature stability with minimal capacitance variation across the operating temperature range. X7R dielectrics allow greater capacitance variation but are suitable for general purpose applications. The KEMET substitutes employ C0G/NP0 characteristics, offering enhanced performance in temperature-sensitive circuits.

Q: Are there physical compatibility concerns when substituting the KEMET parts?

A: The KEMET substitutes are thinner (1.55mm vs. 2.50mm maximum thickness) while maintaining identical length and width dimensions (5.70mm × 5.00mm). This reduced thickness improves PCB assembly density and does not create compatibility issues. Verify PCB clearance requirements if height-constrained applications exist.

Q: Do all three parts meet the same compliance and regulatory requirements?

A: Yes. The original 2220J1K20331MXT and both KEMET substitutes are ROHS3 compliant, REACH unaffected, classified as EAR99 for export purposes, and carry HTSUS code 8532.24.0020. All parts maintain MSL 1 (unlimited) moisture sensitivity rating.

Q: Which substitute part should be selected for new designs?

A: Selection depends on tolerance and voltage margin requirements. C2220C331JFGAC7800 (±5% tolerance) is preferred for applications requiring tight capacitance control. C2220C331KFGAC7800 (±10% tolerance) provides cost optimization while maintaining improved performance over the original part. Both offer superior voltage headroom (1500V vs. 1200V) for enhanced reliability margins.