R474N310040A1M Film Capacitor Equivalent & Substitute Parts

Part Overview

The R474N310040A1M is a 0.1 µF film capacitor manufactured by KEMET, designed for high-voltage applications requiring EMI/RFI suppression and automotive-grade reliability. This radial polypropylene metallized capacitor operates at 1000V DC (440V AC) with ±20% tolerance and is rated for temperatures from -40°C to 110°C. The part is currently Active in product status with 1122 units in stock. Substitute parts are identified when they maintain identical electrical specifications, mechanical dimensions, and compliance certifications, ensuring direct interchangeability in circuit designs.

Substiute Parts

R474N310040A1M

KEMETIn Stock: 1174R474N310040A1M Datasheet

Current PartRFQ

R474N3100JBA1M

KEMETIn Stock: 1124R474N3100JBA1M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R474N310040A1M is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part R474N3100JBA1M qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 0.1 µF
• Tolerance: ±20%
• Voltage Rating - DC: 1000V (1kV)
• Voltage Rating - AC: 440V
• Dielectric Material: Polypropylene (PP), Metallized
• Operating Temperature Range: -40°C to 110°C

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Package Type: Radial
• Physical Dimensions: 26.50mm L x 7.00mm W
• Lead Spacing: 22.50mm
• Termination: PC Pins

Compliance & Certification (Must Match Exactly):

• Series: R47
• Ratings: AEC-Q200, X1
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Both parts are manufactured by KEMET and maintain Active product status. The substitute part differs only in the internal part number suffix (JBA1M vs. 40A1M), indicating a manufacturing variant within the same product line that maintains full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The R474N3100JBA1M is a direct parametric equivalent to the R474N310040A1M and qualifies for substitution in all applications where the main part is specified. Both parts carry identical electrical ratings, mechanical dimensions, and compliance certifications including AEC-Q200 automotive qualification and X1 safety rating. Both maintain Active product status and ROHS3 compliance, ensuring regulatory alignment for current and future production requirements.

The substitute part is suitable for direct replacement in PCB assembly without design modification, as all critical parameters—including lead spacing, package footprint, and termination type—are identical. Selection between the two parts may be based on inventory availability, lead time, or supply chain considerations, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can R474N3100JBA1M be used as a direct replacement for R474N310040A1M?

A: Yes. Both parts are manufactured by KEMET within the R47 series and maintain identical electrical specifications (0.1 µF, ±20%, 1000V DC, 440V AC), mechanical dimensions (26.50mm x 7.00mm, 22.50mm lead spacing), and compliance ratings (AEC-Q200, X1, ROHS3). Direct PCB substitution is supported without design changes.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts have identical dimensions of 26.50mm length x 7.00mm width, identical lead spacing of 22.50mm, and identical radial package configuration. PCB footprints are interchangeable.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both R474N310040A1M and R474N3100JBA1M carry AEC-Q200 certification and X1 safety rating, meeting automotive-grade reliability standards for EMI/RFI suppression applications.

Q: What is the difference between the two part numbers?

A: The part numbers differ only in the manufacturing variant suffix (40A1M vs. JBA1M). This indicates an internal KEMET production variant within the same product line. All electrical, mechanical, and compliance specifications remain identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: Can these parts be used in high-temperature applications?

A: Both parts are rated for operating temperatures from -40°C to 110°C, supporting standard industrial and automotive temperature ranges. Applications requiring operation outside this range require alternative component selection.