Equivalent & Substitute Parts for 16MS522MEFC5X5

Part Overview

The Rubycon 16MS522MEFC5X5 is a 22 µF, 16 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 1000 hours at 85°C. This component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and field service applications.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	16 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)
Mounting Type	Through Hole
Polarization	Polar
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	1000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Capacitance: 22 µF (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Size / Dimension: 0.197" Dia (5.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters (allowable variations):

Voltage Rating: 16 V or higher
Operating Temperature Range: Must encompass or exceed -40°C ~ 85°C
Lifetime @ Temperature: 1000 Hrs @ 85°C or higher performance rating
RoHS Status: ROHS3 Compliant (required)

Substitute parts are grouped into two categories: direct equivalents (matching voltage rating) and upgrades (higher voltage rating or extended temperature range).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Operating Temperature	Lifetime @ Temp.	Lead Spacing	Size / Dimension	Height - Seated (Max)	Product Status	RoHS Status
16MS522MEFC5X5	Rubycon	22 µF	16 V	±20%	-40°C ~ 85°C	1000 Hrs @ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.256" (6.50 mm)	Obsolete	ROHS3 Compliant
16MH522MEFC5X5	Rubycon	22 µF	16 V	±20%	-40°C ~ 105°C	1000 Hrs @ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.256" (6.50 mm)	Obsolete	ROHS3 Compliant
UML1C220MDD	Nichicon	22 µF	16 V	±20%	-40°C ~ 85°C	1000 Hrs @ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.236" (6.00 mm)	Active	ROHS3 Compliant
ECE-A1EKA220	Panasonic Electronic Components	22 µF	25 V	±20%	-40°C ~ 85°C	1000 Hrs @ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-FC1E220	Panasonic Electronic Components	22 µF	25 V	±20%	-55°C ~ 105°C	1000 Hrs @ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-GA1C220	Panasonic Electronic Components	22 µF	16 V	±20%	-55°C ~ 105°C	1000 Hrs @ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-GA1E220	Panasonic Electronic Components	22 µF	25 V	±20%	-55°C ~ 105°C	1000 Hrs @ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.276" (7.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Voltage Rating - 16 V):

UML1C220MDD (Nichicon ML series) is a direct equivalent with active product status. This part maintains the 16 V voltage rating and 1000 Hrs @ 85°C lifetime specification. The seated height is 0.236" (6.00 mm), which is lower than the original 0.256" (6.50 mm), providing improved PCB layout flexibility. All primary compatibility parameters match exactly.

EEA-GA1C220 (Panasonic GA-A series) is an active substitute maintaining the 16 V voltage rating. This part offers extended operating temperature range (-55°C ~ 105°C) and improved lifetime rating (1000 Hrs @ 105°C). The seated height is 0.276" (7.00 mm), requiring verification of available PCB clearance. This part is suitable for applications requiring enhanced thermal performance.

Voltage Upgrade Options (25 V Rating):

ECE-A1EKA220 (Panasonic KA series) and EEA-GA1E220 (Panasonic GA-A series) both provide 25 V voltage rating with 22 µF capacitance. These parts are suitable for designs where higher voltage margin is acceptable. EEA-GA1E220 offers extended temperature range (-55°C ~ 105°C) and improved lifetime (1000 Hrs @ 105°C).

EEA-FC1E220 (Panasonic FC series) is rated for automotive applications (AEC-Q200) with 25 V rating, extended temperature range (-55°C ~ 105°C), and 1000 Hrs @ 105°C lifetime. This part is appropriate for automotive or high-reliability applications.

Rubycon Alternative:

16MH522MEFC5X5 (Rubycon MH5 series) is an obsolete part with improved thermal performance (1000 Hrs @ 105°C, -40°C ~ 105°C). While still obsolete, this part may be available from legacy inventory and offers better thermal characteristics than the original MS5 series.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of a 16 V rated capacitor?

A: Yes. A higher voltage rating is a valid substitution. The 25 V rated parts (ECE-A1EKA220, EEA-FC1E220, EEA-GA1E220) will function correctly in circuits designed for 16 V operation. The higher voltage rating provides additional safety margin and does not affect circuit performance.

Q: What is the significance of the seated height difference?

A: The original 16MS522MEFC5X5 has a maximum seated height of 0.256" (6.50 mm). Substitute parts vary: UML1C220MDD is 0.236" (6.00 mm), while Panasonic parts are 0.276" (7.00 mm). Verify available PCB clearance before selection. Lower height provides better layout flexibility; higher height requires clearance verification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original 16MS522MEFC5X5.

Q: What is the difference between the Rubycon 16MH522MEFC5X5 and the original 16MS522MEFC5X5?

A: Both are Rubycon radial aluminum electrolytic capacitors with 22 µF, 16 V specifications. The MH5 series (16MH522MEFC5X5) offers extended operating temperature (-40°C ~ 105°C versus -40°C ~ 85°C) and improved lifetime rating (1000 Hrs @ 105°C versus 1000 Hrs @ 85°C). Both are obsolete products.

Q: Which substitute part is recommended for new designs?

A: For new designs requiring 16 V operation, UML1C220MDD (Nichicon, active status) or EEA-GA1C220 (Panasonic, active status) are recommended. Both are active products with full manufacturer support. EEA-GA1C220 offers superior thermal performance if operating conditions warrant extended temperature range.

Q: Is the EEA-FC1E220 suitable for non-automotive applications?

A: Yes. The EEA-FC1E220 is rated for automotive applications (AEC-Q200) but is suitable for any application. Its automotive qualification indicates enhanced reliability and quality standards, making it appropriate for general-purpose use where higher reliability is beneficial.

Q: What are the ripple current differences between substitute parts?

A: Ripple current specifications vary among substitutes. The original 16MS522MEFC5X5 specifies 35 mA @ 120 Hz. Substitute parts range from 31 mA to 78 mA @ 120 Hz depending on manufacturer and series. Verify ripple current specifications against circuit requirements for applications with significant AC ripple content.

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