R46KR410040M1M Film Capacitor Equivalent & Substitute Parts

Part Overview

The R46KR410040M1M is a 1 µF film capacitor manufactured by KEMET, featuring polypropylene (PP) metallized dielectric construction with radial through-hole mounting. This component is rated for 560V DC operation and is designed for EMI and RFI suppression applications. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative stock allocation.

Substiute Parts

R46KR410040M1M

KEMETIn Stock: 857R46KR410040M1M Datasheet

Current PartRFQ

R463R410040M1M

KEMETIn Stock: 1337R463R410040M1M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R46KR410040M1M is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 1 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Physical Dimensions: 1.260" L x 0.433" W / 32.00mm x 11.00mm (exact match required)
• Lead Spacing: 1.083" (27.50mm) (exact match required)
• Termination: PC Pins (exact match required)
• Operating Temperature Range: -40°C ~ 110°C (exact match required)

Allowable Variation Parameters:

• Voltage Rating - DC: Equal to or greater than 560V
• Voltage Rating - AC: Equal to or greater than 275V

The R463R410040M1M qualifies as a parametric equivalent because it maintains all mandatory matching parameters while providing elevated voltage ratings (630V DC / 310V AC), which represent an upward-compatible substitution within the same component family and series designation.

Parameter Comparison

Engineering Selection Recommendations

Both the R46KR410040M1M and R463R410040M1M maintain Active product status with full ROHS3 compliance and REACH unaffected designation, ensuring regulatory alignment for current and future applications.

The R463R410040M1M provides higher voltage ratings (630V DC / 310V AC) compared to the primary part (560V DC / 275V AC). This elevated rating permits direct substitution in applications operating at or below the original voltage specifications. The substitute part is suitable for circuits where the primary part number is unavailable or where inventory consolidation toward higher-rated components is strategically preferred.

Both parts share identical physical dimensions, lead spacing, and mounting characteristics, ensuring direct board-level compatibility without layout modifications. The polypropylene metallized dielectric construction and X2 rating classification remain consistent across both parts, maintaining functional equivalence for EMI and RFI suppression applications.

Frequently Asked Questions (FAQ)

Q: Can the R463R410040M1M replace the R46KR410040M1M in all applications?

A: Yes. The R463R410040M1M is a direct parametric equivalent with identical capacitance, tolerance, physical dimensions, and mounting characteristics. The higher voltage ratings (630V DC / 310V AC versus 560V DC / 275V AC) represent an upward-compatible substitution suitable for all applications designed for the original part.

Q: Are there any physical differences between these two parts?

A: No. Both parts share identical physical dimensions (1.260" L x 0.433" W), height (0.791" max), and lead spacing (1.083"). They are mechanically interchangeable at the board level.

Q: What is the significance of the voltage rating difference?

A: The R463R410040M1M carries higher voltage ratings, indicating greater dielectric strength. This allows the substitute part to operate safely in circuits with higher voltage stress while maintaining the same capacitance and tolerance specifications. Applications operating below the original 560V DC specification remain fully compatible.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the R46KR410040M1M and R463R410040M1M are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Are there any temperature or operating condition differences?

A: No. Both parts operate across the identical temperature range of -40°C to 110°C and are rated for the same applications (EMI, RFI suppression) with X2 classification.

Q: What is the lead spacing, and does it affect board compatibility?

A: Both parts feature 1.083" (27.50mm) lead spacing. This identical spacing ensures direct compatibility with existing through-hole PCB layouts without requiring design modifications.

Q: Can I use the R46KR410040M1M as a substitute for the R463R410040M1M?

A: No. The R46KR410040M1M has lower voltage ratings (560V DC / 275V AC) compared to the R463R410040M1M (630V DC / 310V AC). Substitution in the reverse direction is not recommended for applications requiring the higher voltage specification.