Rubycon 35MS52.2MEFC4X5 Equivalent & Substitute Parts

Part Overview

The Rubycon 35MS52.2MEFC4X5 is a 2.2 µF, 35 V aluminum electrolytic capacitor in radial, can package with through-hole mounting. Rated for 1000 hours at 85°C, this component is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent and upgraded substitute parts are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.059" (1.50 mm)
Case Diameter	0.157" (4.00 mm)
Height (Seated Max)	0.256" (6.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 35MS52.2MEFC4X5 are categorized based on the following allowed electrical and mechanical parameters:

Parametric Equivalents maintain identical capacitance (2.2 µF), voltage rating (35 V), tolerance (±20%), and physical dimensions (0.157" diameter, 0.256" height, 0.059" lead spacing). These parts are direct form-fit-function replacements.

Upgraded Substitutes increase the voltage rating to 50 V while maintaining the same capacitance (2.2 µF), tolerance (±20%), and lead spacing (0.059"). Upgraded parts may feature improved lifetime ratings, extended operating temperature ranges, or higher ripple current handling. Physical dimensions may vary slightly (height up to 0.276").

All substitute parts maintain through-hole radial can packaging, ROHS3 compliance, and general-purpose application suitability.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Product Status	Inventory
35MS52.2MEFC4X5	Rubycon	2.2 µF	35 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.256" (6.50 mm)	Obsolete	902 Pcs
35MS52R2MEFC4X5	Rubycon	2.2 µF	35 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.256" (6.50 mm)	Obsolete	2033 Pcs
50ML2.2MEFC4X5	Rubycon	2.2 µF	50 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.256" (6.50 mm)	Obsolete	4925 Pcs
ECE-A1HKA2R2	Panasonic Electronic Components	2.2 µF	50 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.276" (7.00 mm)	Active	11845 Pcs
EEA-GA1H2R2	Panasonic Electronic Components	2.2 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.276" (7.00 mm)	Active	29651 Pcs
UML1H2R2MDD	Nichicon	2.2 µF	50 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.236" (6.00 mm)	Active	1073 Pcs
UMR1H2R2MCD2	Nichicon	2.2 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.236" (6.00 mm)	Active	667 Pcs

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): The Rubycon 35MS52R2MEFC4X5 is a parametric equivalent with identical electrical specifications and physical dimensions. This part maintains the same 35 V rating and 1000-hour lifetime at 85°C. Selection is appropriate when voltage derating is not required and the obsolete status is acceptable for legacy system support.

Upgraded Substitutes (Voltage Upgrade to 50 V): All upgraded substitutes increase the voltage rating to 50 V, providing additional safety margin in applications where the original 35 V specification permits higher-rated components. These parts are suitable for new designs or production transitions.

Among upgraded options, active-status parts are preferred for production continuity:

EEA-GA1H2R2 (Panasonic) offers the highest inventory (29651 pcs), extended operating temperature range (-55°C ~ 105°C), and active product status.
ECE-A1HKA2R2 (Panasonic) provides active status with substantial inventory (11845 pcs) and standard operating range (-40°C ~ 85°C).
UMR1H2R2MCD2 (Nichicon) features extended lifetime (2000 Hrs @ 85°C) with active status, suitable for applications requiring enhanced reliability.
UML1H2R2MDD (Nichicon) offers active status with compact height (0.236"), suitable for space-constrained layouts.

All substitute parts maintain ROHS3 compliance and through-hole radial can packaging.

Frequently Asked Questions (FAQ)

Q: Can the 35MS52.2MEFC4X5 be replaced with a 50 V rated part? A: Yes. A 50 V rated capacitor with identical 2.2 µF capacitance and ±20% tolerance is a valid upgrade substitute. The higher voltage rating provides additional derating margin and is electrically compatible in circuits designed for 35 V operation.

Q: What is the difference between parametric equivalents and upgraded substitutes? A: Parametric equivalents (35MS52R2MEFC4X5) maintain the exact 35 V voltage rating and are direct replacements. Upgraded substitutes increase the voltage rating to 50 V while preserving capacitance and tolerance, offering improved reliability and extended operating ranges.

Q: Are there physical dimension differences between substitute parts? A: Yes. The original part and Rubycon upgraded substitute (50ML2.2MEFC4X5) maintain 0.256" height. Panasonic parts (ECE-A1HKA2R2, EEA-GA1H2R2) have 0.276" height. Nichicon parts (UML1H2R2MDD, UMR1H2R2MCD2) have 0.236" height. All maintain 0.059" lead spacing and 0.157" diameter. Verify PCB layout compatibility before selection.

Q: Which substitute offers the best long-term availability? A: EEA-GA1H2R2 (Panasonic) has the highest inventory (29651 pcs) and active product status, ensuring sustained availability for production requirements.

Q: Do all substitutes maintain RoHS3 compliance? A: Yes. All listed substitute parts are ROHS3 compliant, matching the original part's environmental certification.

Q: What is the ripple current difference between the original and substitutes? A: The original 35MS52.2MEFC4X5 handles 9 mA @ 120 Hz and 14.6 mA @ 10 kHz. Upgraded 50 V substitutes generally support higher ripple currents (11–18 mA @ 120 Hz, 16.5–27.9 mA @ 10 kHz), providing improved thermal performance in high-ripple applications.

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