61V471MCECT Equivalent & Substitute Parts

Part Overview

The 61V471MCECT is a 470 pF ceramic capacitor rated for 400VAC with X1, Y1 safety ratings, manufactured by KYOCERA AVX. This radial, disc-type capacitor is designed for safety applications requiring high-voltage AC operation. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure component availability.

Substiute Parts

61V471MCECT

KYOCERA AVXIn Stock: 80661V471MCECT Datasheet

Current PartRFQ

C911U471KUYDAAWL20

KEMETIn Stock: 1091C911U471KUYDAAWL20 Datasheet

MFR RecommendedRFQ

C911U471KUYDAAWL45

KEMETIn Stock: 1139C911U471KUYDAAWL45 Datasheet

MFR RecommendedRFQ

C911U471KVYDAAWL20

KEMETIn Stock: 1272C911U471KVYDAAWL20 Datasheet

MFR RecommendedRFQ

C911U471KVYDAAWL45

KEMETIn Stock: 955C911U471KVYDAAWL45 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 61V471MCECT is determined by strict equivalence across the following parameters:

• Capacitance Value: 470 pF (exact match required)
• Voltage Rating: 400VAC (minimum requirement; higher ratings acceptable)
• Safety Ratings: X1, Y1 (mandatory for safety applications)
• Mounting Configuration: Through Hole, Radial, Disc (physical and electrical compatibility)
• Lead Spacing: 0.394" (10.00mm) (PCB layout compatibility)
• Operating Temperature Range: -40°C ~ 125°C (functional envelope)

All substitute parts listed below meet these criteria. The KEMET C911U series parts are active products with improved tolerance (±10% versus ±20%) and ROHS3 compliance, providing enhanced reliability and regulatory alignment compared to the obsolete KYOCERA AVX original.

Parameter Comparison

Engineering Selection Recommendations

All four KEMET C911U series substitutes are functionally equivalent to the 61V471MCECT and are suitable for direct replacement in safety-rated applications. Selection among the four variants should be based on:

Product Status: All substitute parts are active products with established supply chains, eliminating obsolescence risk associated with the original KYOCERA AVX part.

Regulatory Compliance: All substitutes are ROHS3 compliant, meeting current environmental and regulatory requirements. The original part's compliance status is not specified.

Tolerance Improvement: The substitute parts offer ±10% tolerance compared to the original ±20%, providing tighter capacitance control and improved circuit performance.

Series Designation: The C911U471KUYDAAWL variants (20 and 45) are designated for X1-400 V1-250 safety ratings, while the C911U471KVYDAAWL variants (20 and 45) are designated for X1-400 Y1-400 safety ratings. Both configurations maintain the required X1, Y1 safety certifications.

Packaging and Inventory: All substitutes are available in bulk packaging with substantial inventory levels (939–1172 pieces), ensuring reliable procurement.

Frequently Asked Questions (FAQ)

Q: Can the KEMET C911U series parts be used as direct replacements for the 61V471MCECT?

A: Yes. All four KEMET substitutes meet the critical electrical and mechanical parameters: 470 pF capacitance, 400VAC rating, X1/Y1 safety certifications, through-hole radial disc package, 0.394" lead spacing, and -40°C to 125°C operating temperature range. Physical footprint and electrical performance are equivalent.

Q: What is the difference between the C911U471KUYDAAWL and C911U471KVYDAAWL variants?

A: Both variants are functionally equivalent 470 pF, 400VAC, X1/Y1 rated capacitors. The primary difference is the series designation: KUYDAAWL variants are rated for Y1-250 applications, while KVYDAAWL variants are rated for Y1-400 applications. Both meet the original part's safety requirements.

Q: What is the significance of the "20" and "45" suffixes in the part numbers?

A: These suffixes indicate packaging tape specifications (20mm and 45mm tape widths) for automated assembly. The electrical and mechanical specifications are identical between these variants. Selection should be based on your assembly equipment compatibility.

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

A: The tighter tolerance of the KEMET substitutes provides improved capacitance accuracy compared to the original ±20% specification. This enhancement does not negatively impact circuit performance and may improve circuit stability and predictability.

Q: Are the KEMET substitutes certified for the same safety applications as the original part?

A: Yes. All substitute parts carry X1, Y1 safety ratings identical to the original 61V471MCECT, qualifying them for safety-critical applications requiring these certifications.