61V331MCDCA Equivalent & Substitute Parts

Part Overview

The 61V331MCDCA is a 330 pF ceramic capacitor rated for 400VAC with radial, disc mounting configuration, manufactured by KYOCERA AVX. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for safety-rated applications (X1, Y1 ratings).

Substiute Parts

61V331MCDCA

KYOCERA AVXIn Stock: 109061V331MCDCA Datasheet

Current PartRFQ

C901U331KUYDAAWL20

KEMETIn Stock: 1144C901U331KUYDAAWL20 Datasheet

MFR RecommendedRFQ

C901U331KUYDAAWL45

KEMETIn Stock: 803C901U331KUYDAAWL45 Datasheet

MFR RecommendedRFQ

C901U331KVYDAAWL20

KEMETIn Stock: 846C901U331KVYDAAWL20 Datasheet

MFR RecommendedRFQ

C901U331KVYDAAWL45

KEMETIn Stock: 933C901U331KVYDAAWL45 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 61V331MCDCA is determined by strict equivalence across the following parameters:

• Capacitance Value: 330 pF (exact match required)
• Voltage Rating: 400VAC (minimum requirement)
• Safety Certifications: X1, Y1 ratings (mandatory for safety applications)
• Operating Temperature Range: -40°C ~ 125°C (minimum coverage required)
• Mounting Configuration: Through Hole, Radial, Disc (physical compatibility)
• Lead Spacing: 0.394" (10.00mm) (PCB layout compatibility)
• Diameter: 0.276" (7.00mm) (form factor compatibility)

All four KEMET C901U series variants meet these substitution criteria. The tolerance improvement from ±20% to ±10% in substitute parts represents enhanced performance without compromising compatibility. Temperature coefficient designation (Y5P) and series variants (C900AH SFTY X1-400 Y1-250 or Y1-400) indicate different manufacturing specifications but maintain electrical equivalence for the specified application parameters.

Parameter Comparison

Engineering Selection Recommendations

All four KEMET C901U series variants are direct electrical and mechanical equivalents to the 61V331MCDCA. Selection among these alternatives is based on product availability and compliance status:

Active Product Status: All substitute parts carry Active product status, ensuring continued availability and manufacturing support, contrasting with the obsolete status of the original component.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements equivalent to the original part.

Tolerance Enhancement: The ±10% tolerance specification of substitute parts provides improved capacitance accuracy compared to the original ±20% tolerance, supporting tighter circuit performance specifications without introducing compatibility concerns.

Series Variants: The C901U331KVYDAAWL series (Y1-400 rating) provides enhanced voltage margin for Y1 safety classification compared to the C901U331KUYDAAWL series (Y1-250 rating). Both maintain full compatibility with the 400VAC application requirement.

Packaging Variants: The "20" and "45" suffixes indicate different tape-and-reel packaging configurations (20mm and 45mm tape widths). Selection depends on assembly equipment compatibility and procurement volume requirements.

Frequently Asked Questions (FAQ)

Q: Can C901U331KUYDAAWL and C901U331KVYDAAWL variants be used interchangeably?

A: Yes. Both variants maintain identical electrical specifications (330 pF, ±10%, 400VAC, X1/Y1 ratings) and mechanical form factors. The series designation difference (Y1-250 vs. Y1-400) reflects internal manufacturing specifications but does not affect circuit performance or safety compliance for this application.

Q: What is the difference between the "20" and "45" packaging suffixes?

A: These designations indicate tape-and-reel packaging widths (20mm and 45mm respectively). Electrical and mechanical specifications are identical. Selection depends on compatibility with your assembly equipment and procurement logistics.

Q: Are the substitute parts suitable for direct PCB replacement?

A: Yes. All substitute parts maintain identical lead spacing (0.394" / 10.00mm), diameter (0.276" / 7.00mm), and through-hole mounting configuration. No PCB layout modifications are required.

Q: Does the improved ±10% tolerance of substitute parts affect circuit design?

A: The tighter tolerance of substitute parts supports improved circuit performance and consistency. No design modifications are necessary; the substitute parts are fully backward compatible with designs specified for ±20% tolerance.

Q: Are all substitute parts compliant with current environmental regulations?

A: Yes. All four KEMET variants are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.