Equivalent & Substitute Parts for 35MS53.3MEFC4X5

Part Overview

The Rubycon 35MS53.3MEFC4X5 is a 3.3 µF, 35 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 1000 hours at 85°C. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MS5 series is no longer in active production, requiring engineers to identify compatible alternatives from active product lines that meet or exceed the original electrical and mechanical specifications.

Substiute Parts

35MS53.3MEFC4X5

RubyconIn Stock: 90835MS53.3MEFC4X5 Datasheet

Current PartRFQ

ECE-A1VKS3R3

Panasonic Electronic ComponentsIn Stock: 5671ECE-A1VKS3R3 Datasheet

DirectRFQ

ECE-A1HKA3R3

Panasonic Electronic ComponentsIn Stock: 63664ECE-A1HKA3R3 Datasheet

UpgradeRFQ

EEA-GA1H3R3

Panasonic Electronic ComponentsIn Stock: 3891EEA-GA1H3R3 Datasheet

UpgradeRFQ

UMR1V3R3MCD2

NichiconIn Stock: 685UMR1V3R3MCD2 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 35MS53.3MEFC4X5 are categorized based on strict electrical and mechanical compatibility criteria:

Direct Equivalent (Same Voltage Rating):

• UMR1V3R3MCD2 (Nichicon): Maintains 35 V rating with identical capacitance, tolerance, lead spacing, and mounting type. Offers extended lifetime (2000 Hrs @ 85°C) compared to the original specification.
• ECE-A1VKS3R3 (Panasonic): Maintains 35 V rating with identical capacitance, tolerance, lead spacing, and mounting type. Equivalent lifetime (1000 Hrs @ 85°C).

Upgraded Alternatives (Higher Voltage Rating):

• ECE-A1HKA3R3 (Panasonic): Increases voltage rating to 50 V while maintaining 3.3 µF capacitance and ±20% tolerance. Same lead spacing and mounting type. Lifetime remains 1000 Hrs @ 85°C.
• EEA-GA1H3R3 (Panasonic): Increases voltage rating to 50 V with 3.3 µF capacitance and ±20% tolerance. Extended operating temperature range (-55°C ~ 105°C) and extended lifetime (1000 Hrs @ 105°C). Same lead spacing and mounting type.

All substitute parts share identical mechanical footprints (lead spacing, case diameter, through-hole mounting) and are ROHS3 compliant.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Active Product): Select ECE-A1VKS3R3 (Panasonic KS series) when maintaining the original 35 V specification is required. This part is active in production with high inventory availability and identical electrical parameters to the obsolete Rubycon MS5 component.

For Extended Reliability: Select UMR1V3R3MCD2 (Nichicon UMR series) when extended component lifetime is beneficial. This part maintains the 35 V rating while doubling the rated lifetime to 2000 hours at 85°C, providing improved long-term reliability in the same physical footprint.

For Voltage Margin and Extended Temperature Range: Select EEA-GA1H3R3 (Panasonic GA-A series) when designs require enhanced thermal performance or operation beyond standard temperature limits. This part increases the voltage rating to 50 V, extends the operating temperature range to -55°C ~ 105°C, and maintains rated lifetime at the elevated temperature of 105°C. This option is suitable for applications with demanding thermal or environmental requirements.

For High-Volume Availability: Select ECE-A1HKA3R3 (Panasonic KA series) when maximum inventory availability is a procurement priority. This part offers the highest stock level (63,581 units) with a 50 V voltage rating and active product status.

All substitute parts are ROHS3 compliant and maintain mechanical compatibility with the original design through identical lead spacing and through-hole mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can I use a 50 V rated capacitor in place of the original 35 V component? A: Yes. A higher voltage rating provides additional safety margin and does not degrade circuit performance. The 50 V alternatives (ECE-A1HKA3R3 and EEA-GA1H3R3) are electrically compatible and mechanically interchangeable with the original 35 V part.

Q: What is the difference between ECE-A1HKA3R3 and EEA-GA1H3R3? A: Both are 50 V, 3.3 µF Panasonic alternatives. The EEA-GA1H3R3 (GA-A series) offers an extended operating temperature range (-55°C ~ 105°C) and maintains rated lifetime at 105°C, making it suitable for high-temperature applications. The ECE-A1HKA3R3 (KA series) operates within the standard -40°C ~ 85°C range with higher inventory availability.

Q: Will the substitute parts fit in the same PCB footprint? A: Yes. All substitute parts maintain identical lead spacing (0.059" / 1.50mm) and case diameter (0.157" / 4.00mm). Height variations exist (6.00mm to 7.00mm seated height), but these differences do not affect through-hole mounting compatibility on standard PCB layouts.

Q: Is the UMR1V3R3MCD2 a better choice than the Panasonic alternatives? A: The UMR1V3R3MCD2 offers extended lifetime (2000 Hrs @ 85°C) compared to the 1000-hour rating of other direct equivalents, making it suitable for applications where component longevity is critical. However, it maintains the original 35 V rating without the voltage margin provided by 50 V alternatives.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and meet the same environmental compliance standards as the original Rubycon component.

Q: Which substitute should I choose for new designs? A: For new designs, select based on application requirements: ECE-A1VKS3R3 for standard 35 V applications with active production support, EEA-GA1H3R3 for extended temperature range or high-reliability requirements, or ECE-A1HKA3R3 for maximum inventory availability with 50 V margin.