2220Y4K00331MXT Equivalent & Substitute Parts

Part Overview

The 2220Y4K00331MXT is a 330 pF ceramic capacitor rated for 4000V (4kV) with X7R temperature coefficient, manufactured by Knowles Syfer in the FlexiCap™ series. This surface mount multilayer ceramic capacitor (MLCC) is designed for high-voltage applications requiring stable capacitance across operating temperatures from -55°C to 125°C. The part features soft termination technology and is optimized for boardflex-sensitive applications. As an active product with full inventory availability, equivalent parts may be required for design flexibility, supply chain optimization, or tolerance specification adjustments.

Substiute Parts

2220Y4K00331MXT

Knowles SyferIn Stock: 9822220Y4K00331MXT Datasheet

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2220Y4K00331KXT

Knowles SyferIn Stock: 8862220Y4K00331KXT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 2220Y4K00331MXT is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 330 pF (exact match required)
• Voltage Rating: 4000V (4kV) (exact match required)
• Temperature Coefficient: X7R (exact match required)
• Package / Case: 2220 (5750 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Physical Dimensions: 0.224" L x 0.197" W (5.70mm x 5.00mm), Thickness 0.098" (2.50mm) (exact match required)

The substitute part 2220Y4K00331KXT maintains all critical electrical and mechanical parameters while offering an improved tolerance specification (±10% versus ±20%). This represents an upgrade path for applications requiring tighter capacitance tolerance without any change to form factor, voltage rating, or thermal performance.

Parameter Comparison

Engineering Selection Recommendations

Both the 2220Y4K00331MXT and 2220Y4K00331KXT are active products manufactured by Knowles Syfer with full regulatory compliance (ROHS3 and REACH Unaffected). Selection between these parts depends on tolerance requirements:

• 2220Y4K00331MXT (±20% tolerance): Suitable for applications where standard tolerance meets circuit performance requirements and cost optimization is prioritized.
• 2220Y4K00331KXT (±10% tolerance): Suitable for applications requiring tighter capacitance tolerance control and improved circuit stability across production variations.

Both parts are identical in physical footprint, voltage rating, temperature performance, and mounting characteristics, enabling direct substitution without PCB redesign or assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can 2220Y4K00331KXT replace 2220Y4K00331MXT in existing designs?

A: Yes. The substitute part maintains identical electrical ratings (330 pF, 4kV, X7R), physical dimensions (2220 package), and mounting type. The only difference is improved tolerance (±10% versus ±20%), which is a functional upgrade.

Q: What is the significance of the tolerance difference between these parts?

A: Tolerance defines the acceptable range of capacitance variation from the nominal 330 pF value. The ±20% part allows ±66 pF deviation (264–396 pF range), while the ±10% part allows ±33 pF deviation (297–363 pF range). Applications requiring precise capacitance values benefit from the tighter tolerance of the substitute part.

Q: Are there any thermal or voltage performance differences?

A: No. Both parts operate identically across the -55°C to 125°C temperature range with X7R temperature coefficient and are rated for 4000V. Thermal and voltage performance are equivalent.

Q: Can these parts be used interchangeably on the same PCB assembly line?

A: Yes. Both parts use identical 2220 (5750 Metric) surface mount packaging with soft termination, enabling direct substitution in pick-and-place assembly without tooling or process changes.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling procedures apply without special dry-pack or bake-out requirements.