61V331KCDIA Equivalent & Substitute Parts

Part Overview

The 61V331KCDIA 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 identical electrical and mechanical specifications for direct replacement in existing designs.

Substiute Parts

61V331KCDIA

KYOCERA AVXIn Stock: 77761V331KCDIA 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

The four KEMET C901U series alternatives are direct substitutes for the 61V331KCDIA based on matching all critical electrical and mechanical parameters: 330 pF capacitance, ±10% tolerance, 400VAC voltage rating, X1 and Y1 safety certifications, -40°C ~ 125°C operating temperature, through-hole mounting, radial disc package, 0.394" lead spacing, and 0.276" diameter. The substitutes differ only in temperature coefficient designation (Y5P instead of unspecified) and series variant (C900AH SFTY with different Y-rating configurations), which do not affect functional equivalence for the specified application. All substitute parts maintain identical physical footprint and electrical performance within the defined parameters.

Parameter Comparison

Engineering Selection Recommendations

All four KEMET C901U series alternatives are functionally equivalent to the obsolete 61V331KCDIA. Selection among the substitutes should be based on availability and supply chain requirements, as all parts meet identical electrical and mechanical specifications. The KEMET alternatives offer the advantage of active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The C901U331KUYDAAWL20 and C901U331KUYDAAWL45 variants are designated for Y1-250 applications, while C901U331KVYDAAWL20 and C901U331KVYDAAWL45 are designated for Y1-400 applications; selection depends on the specific safety rating requirement of the target application.

Frequently Asked Questions (FAQ)

Q: Are the KEMET C901U series parts direct pin-for-pin replacements for the 61V331KCDIA?

A: Yes. All substitute parts maintain identical lead spacing (0.394"), diameter (0.276"), lead style (straight), and through-hole mounting configuration, enabling direct PCB footprint compatibility.

Q: What is the difference between the four KEMET substitute options?

A: The substitutes differ in series designation and Y-rating configuration. C901U331KUYDAAWL20 and C901U331KUYDAAWL45 are rated for Y1-250 applications, while C901U331KVYDAAWL20 and C901U331KVYDAAWL45 are rated for Y1-400 applications. The numerical suffix (20 or 45) indicates packaging tape configuration. All four maintain identical electrical performance and physical dimensions.

Q: Do the KEMET substitutes maintain the same safety certifications as the original part?

A: Yes. All KEMET alternatives carry X1 and Y1 safety ratings identical to the 61V331KCDIA, maintaining compliance for safety-critical applications.

Q: What is the temperature coefficient designation Y5P, and how does it differ from the original part?

A: The original 61V331KCDIA does not specify a temperature coefficient. The KEMET substitutes are designated Y5P (B), which defines the capacitance change over the operating temperature range. This specification does not affect functional equivalence within the stated -40°C ~ 125°C operating range.

Q: Are the KEMET alternatives RoHS compliant?

A: Yes. All four KEMET C901U series substitutes are ROHS3 compliant, meeting current environmental and regulatory requirements.