61V331KCECA Equivalent & Substitute Parts

Part Overview

The 61V331KCECA is a 330 pF ±10% 400VAC ceramic capacitor manufactured by KYOCERA AVX in radial disc configuration. This component is rated for safety applications with X1 and Y1 certifications. The part is currently obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for direct replacement in existing designs.

Substiute Parts

61V331KCECA

KYOCERA AVXIn Stock: 92961V331KCECA 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 61V331KCECA is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 330 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 400VAC (exact match required)
• Safety Certifications: X1 and Y1 ratings (exact match required)
• Operating Temperature: -40°C ~ 125°C (exact match required)
• Mounting Configuration: Through Hole, Radial Disc (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)

All four substitute parts from KEMET (C901U331KUYDAAWL20, C901U331KUYDAAWL45, C901U331KVYDAAWL20, C901U331KVYDAAWL45) meet these criteria. Variations between substitute parts relate to packaging configuration (bulk) and series designation, which do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All four KEMET substitute parts are functionally equivalent to the 61V331KCECA and are suitable for direct replacement. Selection among the four alternatives should be based on:

Product Status: All substitute parts are active components with current manufacturing support, eliminating obsolescence risk associated with the original KYOCERA AVX part.

Compliance: All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements. Both the original and substitute parts are REACH unaffected and carry EAR99 ECCN classification.

Physical Compatibility: While substitute parts have a slightly smaller diameter (0.276" vs. 0.315"), the critical lead spacing of 0.394" (10.00mm) remains identical, ensuring PCB footprint compatibility. The reduced body diameter may provide improved thermal performance in confined spaces.

Series Designation: Substitute parts are available in two series configurations—C900AH SFTY X1-400 Y1-250 (parts ending in KUYDAAWL) and C900AH SFTY X1-400 Y1-400 (parts ending in KVYDAAWL)—with no electrical performance difference for this application.

Packaging Variants: The suffix designations (20 and 45) indicate packaging configuration variants. Selection should align with procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the KEMET C901U331K series parts directly replace the KYOCERA AVX 61V331KCECA?

A: Yes. All four KEMET substitute parts maintain identical capacitance (330 pF), tolerance (±10%), voltage rating (400VAC), safety certifications (X1, Y1), operating temperature range (-40°C ~ 125°C), lead spacing (0.394"), and mounting configuration (through-hole radial disc). Direct PCB substitution is supported.

Q: What is the significance of the different series designations (Y1-250 vs. Y1-400)?

A: The series designation indicates the Y1 safety rating subcategory. Both Y1-250 and Y1-400 variants meet the Y1 safety requirement for this application. Selection between these variants should follow design specifications or procurement standards.

Q: Does the smaller body diameter of the substitute parts affect compatibility?

A: No. The critical parameter for PCB compatibility is lead spacing, which remains 0.394" (10.00mm) on all parts. The reduced body diameter (0.276" vs. 0.315") does not affect electrical performance or mechanical fit on standard PCB layouts. The smaller diameter may provide advantages in space-constrained designs.

Q: Are the packaging variants (20 and 45 suffixes) electrically different?

A: No. The suffix designations indicate packaging configuration and tape/reel specifications for automated assembly. Electrical and mechanical specifications are identical across all four substitute parts.

Q: What is the advantage of selecting an active product over the obsolete original?

A: Active products ensure continued manufacturing availability, stable pricing, and technical support. The obsolete status of the original part creates supply chain risk and potential cost escalation. All substitute parts are actively manufactured by KEMET with established supply chains.