Equivalent & Substitute Parts for 478KXM025M

Part Overview

The Cornell Dubilier / Illinois Capacitor 478KXM025M is a 4700 µF, 25 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as Active product status and is designed for general purpose applications. The capacitor operates across a temperature range of -55°C to 105°C with a rated lifetime of 5000 hours at 105°C. Substitute parts are identified to provide equivalent electrical and mechanical performance for applications requiring extended component availability, improved performance characteristics, or alternative sourcing options.

Substiute Parts

478KXM025M

Cornell Dubilier / Illinois CapacitorIn Stock: 785478KXM025M Datasheet

Current PartRFQ

B41888C5478M000

EPCOS - TDK ElectronicsIn Stock: 2226B41888C5478M000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 478KXM025M are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance: 4700 µF (exact match required)
• Voltage Rating: 25 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)

Mechanical Equivalence Criteria:

• Package Type: Radial, Can (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.295" (7.50mm) (exact match required)
• Physical Dimensions: 0.709" Dia (18.00mm) and 1.457" (37.00mm) height (exact match required)

Environmental Compliance:

• RoHS3 Compliant status (maintained across all substitutes)
• Operating Temperature Range: -55°C to 105°C (maintained)

The substitute part B41888C5478M000 meets all electrical and mechanical equivalence criteria and maintains full environmental compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the 478KXM025M and B41888C5478M000 are Active product status components with full ROHS3 compliance and REACH unaffected status. Both components maintain identical electrical ratings (4700 µF, 25 V, ±20% tolerance) and mechanical specifications (radial can package, through-hole mounting, 0.295" lead spacing, 18.00mm diameter, 37.00mm height).

The B41888C5478M000 substitute part carries AEC-Q200 automotive qualification rating, which is not specified for the main part. Both components operate across the identical temperature range of -55°C to 105°C.

Selection between these parts is determined by application requirements, inventory availability, and sourcing constraints. The electrical and mechanical equivalence is complete, permitting direct substitution in circuit designs without modification to PCB layouts or component footprints.

Frequently Asked Questions (FAQ)

Q: Can the B41888C5478M000 be used as a direct replacement for the 478KXM025M?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical capacitance (4700 µF), voltage rating (25 V), tolerance (±20%), operating temperature range (-55°C to 105°C), polarization (polar), package type (radial can), mounting method (through hole), lead spacing (0.295" / 7.50mm), and physical dimensions (0.709" diameter / 18.00mm, 1.457" height / 37.00mm). Direct substitution is permissible without PCB modification.

Q: What are the key differences between these two parts?

A: The substitute part B41888C5478M000 exhibits lower ESR (15 mOhm @ 10 kHz versus 49.4 mOhm @ 120 Hz), higher ripple current capability (4.3 A @ 100 kHz versus 3.7 A @ 100 kHz), lower impedance (14 mOhms versus 46 mOhms), extended lifetime (10000 hours @ 105°C versus 5000 hours @ 105°C), and AEC-Q200 automotive qualification. The main part is specified for general purpose applications.

Q: Are the physical dimensions identical?

A: Yes. Both components have identical lead spacing (0.295" / 7.50mm), diameter (0.709" / 18.00mm), and maximum seated height (1.457" / 37.00mm). PCB footprints and mounting holes require no modification for substitution.

Q: Do both parts meet the same environmental compliance standards?

A: Yes. Both the 478KXM025M and B41888C5478M000 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8532.22.0020.

Q: What is the operating temperature range for both parts?

A: Both components operate across -55°C to 105°C. Rated lifetime specifications differ: the main part is rated for 5000 hours at 105°C, while the substitute is rated for 10000 hours at 105°C.