477AVD010MFE

Part Overview

The 477AVD010MFE is a 470 µF 10 V aluminum electrolytic capacitor in a radial, can-style surface mount package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as obsolete, necessitating the identification of active substitute parts to maintain design continuity and supply chain reliability. The part serves general-purpose applications requiring energy storage and filtering in low-voltage circuits.

Substiute Parts

477AVD010MFE

Cornell Dubilier / Illinois CapacitorIn Stock: 838477AVD010MFE Datasheet

Current PartRFQ

ATB477M010

Cornell Dubilier / Illinois CapacitorIn Stock: 1123ATB477M010 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 477AVD010MFE is determined by the following mandatory electrical and mechanical parameters:

1. Electrical Equivalence: Capacitance (470 µF), voltage rating (10 V), and tolerance (±20%) must remain constant across any substitute.
2. Package Compatibility: Surface mount radial can configuration must be maintained for PCB assembly compatibility.
3. Polarization: Polar characteristic must be preserved.
4. Environmental Specifications: Operating temperature range (-55°C ~ 105°C) and moisture sensitivity rating must be maintained.

The ATB477M010 qualifies as a direct substitute based on matching these core parameters. While differences exist in physical dimensions, ESR characteristics, and ripple current ratings, these variations remain within acceptable tolerances for general-purpose applications and do not preclude functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The ATB477M010 represents an active substitute for the obsolete 477AVD010MFE. Selection criteria are based on the following factors:

Product Status: The ATB477M010 is classified as active, ensuring continued availability and supplier support, whereas the 477AVD010MFE is obsolete.

Compliance and Certifications: The ATB477M010 is RoHS3 compliant, providing environmental compliance for regulated applications. Both parts maintain REACH Unaffected status and carry the same ECCN and HTSUS classifications.

Functional Equivalence: Both parts satisfy the core electrical requirements of 470 µF capacitance at 10 V with ±20% tolerance and identical operating temperature ranges. The ATB477M010 exhibits superior electrical characteristics, including lower ESR and higher ripple current handling, which do not compromise interchangeability for general-purpose applications.

Mechanical Compatibility Considerations: The ATB477M010 has a larger radial diameter (0.394" vs. 0.315") and different surface mount land size. PCB layout verification is required to confirm that physical dimensions do not conflict with existing footprints or component spacing constraints.

Frequently Asked Questions (FAQ)

Q: Can the ATB477M010 be used as a direct pin-for-pin replacement for the 477AVD010MFE?

A: The ATB477M010 provides electrical equivalence and maintains the same voltage, capacitance, and tolerance ratings. However, physical dimensions differ; the ATB477M010 has a larger diameter (10.00mm vs. 8.00mm) and different surface mount land sizes. PCB footprint compatibility must be verified before substitution.

Q: What determines whether a substitute part is functionally equivalent?

A: Functional equivalence for aluminum electrolytic capacitors in general-purpose applications is determined by matching capacitance value, voltage rating, tolerance, package type, polarization, and operating temperature range. The ATB477M010 meets all these criteria.

Q: Are there performance differences between the 477AVD010MFE and ATB477M010?

A: The ATB477M010 exhibits lower ESR (730 mOhm vs. 850 mOhm) and higher ripple current capacity (595 mA @ 120 Hz vs. 300 mA). These characteristics represent performance improvements that do not compromise compatibility for applications designed for the original part.

Q: What is the significance of the different dimensions?

A: The ATB477M010 has a larger case diameter (0.394" vs. 0.315") and different surface mount land sizes. These differences require verification against PCB design constraints and available component spacing to ensure no conflicts with adjacent components or design rules.

Q: Does the RoHS3 compliance of the ATB477M010 matter for my application?

A: RoHS3 compliance is relevant only if the application or market jurisdiction mandates it. The ATB477M010's RoHS3 status provides environmental compliance for regulated markets; however, this does not affect functional interchangeability with the 477AVD010MFE.