477SAK035M Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 477SAK035M is a 470 µF, 35 V radial aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SAK series. This component is classified as Active product status and is designed for general-purpose applications requiring through-hole mounting. The part is ROHS3 compliant and REACH unaffected, making it suitable for modern electronic assemblies. Substitute parts are identified when inventory constraints, lead time requirements, or specific performance characteristics necessitate alternative sourcing while maintaining functional equivalence within the allowed parameter ranges for this capacitor category.

Substiute Parts

477SAK035M

Cornell Dubilier / Illinois CapacitorIn Stock: 876477SAK035M Datasheet

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ECA-1VHG471

Panasonic Electronic ComponentsIn Stock: 51364ECA-1VHG471 Datasheet

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ECE-A1VN471U

Panasonic Electronic ComponentsIn Stock: 1064ECE-A1VN471U Datasheet

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SK471M035ST

Cornell Dubilier Electronics (CDE)In Stock: 2118SK471M035ST Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 477SAK035M are identified based on strict electrical and mechanical parameter matching. All substitute candidates must satisfy the following mandatory criteria:

Electrical Parameters (Non-negotiable):

• Capacitance: 470 µF (exact match)
• Voltage Rating: 35 V (exact match)
• Tolerance: ±20% or tighter
• Polarization: Polar (for direct substitution in existing circuits)

Mechanical Parameters (Non-negotiable):

• Mounting Type: Through Hole
• Lead Spacing: 0.197" (5.00mm)
• Package / Case: Radial, Can

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Performance Parameters (Application-dependent):

• Operating Temperature Range: Must encompass or match -40°C ~ 85°C
• Lifetime @ Temperature: 2000 Hrs @ 85°C or equivalent thermal rating

The three substitute parts listed (ECA-1VHG471, SK471M035ST, ECE-A1VN471U) meet all mandatory electrical and mechanical criteria. Variations in physical dimensions, ESR values, ripple current ratings, and thermal lifetime specifications are documented to enable informed selection based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (ECA-1VHG471, SK471M035ST, ECE-A1VN471U) are Active product status components that satisfy the mandatory electrical, mechanical, and compliance requirements for direct substitution with the 477SAK035M in general-purpose applications.

ECA-1VHG471 (Panasonic NHG-A Series): This substitute offers an extended operating temperature range (-55°C ~ 105°C) and thermal lifetime rating of 2000 Hrs @ 105°C, providing enhanced thermal performance compared to the main part. Physical dimensions are smaller in diameter (0.394" vs 0.492") but taller in height (0.669" vs 0.551"), requiring PCB layout verification. This part is suitable for applications requiring extended temperature operation or higher thermal stress conditions.

SK471M035ST (Cornell Dubilier SK Series): This substitute is manufactured by the same supplier as the main part (Cornell Dubilier Electronics) and features a lower ESR value (330 mOhm vs 494 mOhm), resulting in reduced heat generation and improved ripple current handling. Physical dimensions are smaller in diameter (0.394" vs 0.492") but significantly taller (0.906" vs 0.551"), requiring PCB layout verification. This part is suitable for applications with high ripple current demands or thermal constraints.

ECE-A1VN471U (Panasonic SU Series): This substitute features bi-polar polarization, enabling use in AC or non-polarized circuit configurations where the main polar part cannot be applied. Physical dimensions match the main part in diameter (0.492") but are significantly taller (0.984" vs 0.551"), requiring PCB layout verification. Ripple current performance is superior at high frequencies (1.003 A @ 10 kHz vs 855 mA @ 10 kHz). This part is suitable for applications requiring bi-polar capacitor functionality.

All substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the main part.

Frequently Asked Questions (FAQ)

Q: Can ECA-1VHG471 be used as a direct replacement for 477SAK035M in all applications?

A: ECA-1VHG471 meets all mandatory electrical and mechanical substitution criteria (470 µF, 35 V, ±20% tolerance, polar, through-hole, 5.00mm lead spacing, radial can package). However, physical dimensions differ: the substitute is smaller in diameter (10.00mm vs 12.50mm) but taller (17.00mm vs 14.00mm). PCB layout verification is required to confirm clearance and mounting compatibility. The extended temperature range (-55°C ~ 105°C) and higher thermal rating (2000 Hrs @ 105°C) provide enhanced performance in thermally demanding applications.

Q: What is the difference between SK471M035ST and 477SAK035M?

A: Both parts are 470 µF, 35 V radial aluminum electrolytic capacitors with identical electrical specifications (capacitance, voltage, tolerance, lead spacing, mounting type, package). The primary differences are: (1) SK471M035ST has lower ESR (330 mOhm vs 494 mOhm), reducing heat generation; (2) Physical dimensions differ—SK471M035ST is smaller in diameter (10.00mm vs 12.50mm) but taller (23.00mm vs 14.00mm); (3) Both are manufactured by Cornell Dubilier but from different series (SK vs SAK). PCB layout verification is required due to dimensional differences.

Q: Why is ECE-A1VN471U listed as bi-polar when the main part is polar?

A: ECE-A1VN471U is specified as bi-polar, which differs from the main part's polar specification. Bi-polar capacitors can be used in AC or non-polarized circuit configurations. In circuits designed for polar capacitors, ECE-A1VN471U can function as a substitute because bi-polar capacitors are compatible with DC applications (the intended use of the main part). However, the bi-polar specification indicates different internal construction. This part is suitable for applications requiring either AC operation or where polarity reversal protection is beneficial.

Q: Are all substitute parts available in the same packaging as 477SAK035M?

A: All substitute parts are specified as Bulk packaging with Through Hole mounting type and Radial, Can package / case, matching the main part's packaging classification. However, physical dimensions (diameter and height) vary among substitutes. Lead spacing is identical (0.197" / 5.00mm) for all parts, ensuring PCB footprint compatibility. Physical clearance around the capacitor location must be verified for each substitute due to dimensional variations.

Q: Which substitute part has the best ripple current performance?

A: ECE-A1VN471U provides the highest ripple current at high frequency (1.003 A @ 10 kHz) compared to 477SAK035M (855 mA @ 10 kHz) and ECA-1VHG471 (690 mA @ 100 kHz). At low frequency (120 Hz), ECE-A1VN471U (590 mA) and 477SAK035M (570 mA) are comparable, while ECA-1VHG471 is lower (460 mA). SK471M035ST ripple current specifications are not provided in the available data. Selection should be based on the specific ripple current requirements of the application.

Q: Can I use ECA-1VHG471 in a high-temperature environment?

A: ECA-1VHG471 is rated for operation from -55°C to 105°C with a thermal lifetime of 2000 Hrs @ 105°C, compared to 477SAK035M's -40°C to 85°C range with 2000 Hrs @ 85°C. This makes ECA-1VHG471 suitable for applications requiring extended high-temperature operation. However, physical dimensions differ (smaller diameter, greater height), requiring PCB layout verification before implementation.

Q: What is the significance of ESR differences between 477SAK035M and SK471M035ST?

A: SK471M035ST has lower ESR (330 mOhm @ unspecified frequency) compared to 477SAK035M (494 mOhm @ 120 Hz). Lower ESR reduces resistive heating within the capacitor, improving thermal performance and ripple current handling capability. In applications with high ripple current or thermal constraints, the lower ESR of SK471M035ST provides performance advantages. However, physical dimensions differ (smaller diameter, significantly greater height), requiring PCB layout verification.

Q: Are all substitute parts compliant with RoHS and REACH regulations?

A: All substitute parts (ECA-1VHG471, SK471M035ST, ECE-A1VN471U) are ROHS3 compliant and REACH unaffected, matching the regulatory compliance status of 477SAK035M. This ensures compatibility with modern electronic assembly requirements and environmental regulations.