SS220M016ST Equivalent & Substitute Parts

Part Overview

The SS220M016ST is a 22 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating that direct procurement from the original manufacturer is no longer available. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C, making it suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Due to its obsolete status, equivalent and substitute parts from active manufacturers provide viable alternatives for circuit designs requiring 22 µF capacitance at 16 V or higher voltage ratings. Substitute parts maintain the same capacitance value, tolerance, and physical form factor while offering improved performance characteristics such as extended lifetime ratings, higher temperature operation, or enhanced ripple current handling.

Key Parameters

Parameter	SS220M016ST Value
Capacitance	22 µF
Tolerance	±20%
Voltage - Rated	16 V
ESR (Equivalent Series Resistance)	10.25 Ohm @ 120 Hz
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Ripple Current @ 120 Hz	44 mA
Ripple Current @ 1 kHz	48.4 mA
Lead Spacing	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.276" (7.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the SS220M016ST are categorized based on electrical and mechanical compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Capacitance: 22 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 16 V minimum (equal or higher voltage ratings are acceptable)
Polarization: Polar (required for electrolytic capacitors)
Mounting Type: Through Hole (required for PCB compatibility)
Package / Case: Radial, Can (required for form factor compatibility)
Lead Spacing: 0.079" (2.00 mm) (required for PCB hole pattern compatibility)
Size / Dimension: 0.197" Dia (5.00 mm) (required for PCB footprint compatibility)

Secondary Parameters Affecting Selection:

Operating Temperature Range: Extended ranges (-55°C to 105°C) provide enhanced performance
Lifetime @ Temperature: Extended ratings (2000 Hrs or 5000 Hrs) indicate improved reliability
ESR and Ripple Current: Lower values indicate better performance characteristics
Product Status: Active parts ensure long-term availability

Substitute parts are grouped into three categories: direct equivalents (matching all critical parameters), same-voltage upgrades (improved performance at 16 V), and higher-voltage upgrades (16 V to 25 V or 50 V ratings for circuit margin enhancement).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	ESR	Lifetime @ Temp	Operating Temp Range	Height (Max)	Product Status	RoHS Status
SS220M016ST	Cornell Dubilier Electronics	22 µF	±20%	16 V	10.25 Ohm @ 120 Hz	1000 Hrs @ 85°C	-40°C ~ 85°C	0.276" (7.00 mm)	Obsolete	ROHS3 Compliant
SK220M016ST	Cornell Dubilier Electronics	22 µF	±20%	16 V	9.65 Ohm	2000 Hrs @ 85°C	-40°C ~ 85°C	0.512" (13.00 mm)	Active	ROHS3 Compliant
ECE-A1CKS220	Panasonic Electronic Components	22 µF	±20%	16 V	Not Specified	1000 Hrs @ 85°C	-40°C ~ 85°C	0.236" (6.00 mm)	Active	ROHS3 Compliant
16MH522MEFC5X5	Rubycon	22 µF	±20%	16 V	Not Specified	1000 Hrs @ 105°C	-40°C ~ 105°C	0.256" (6.50 mm)	Obsolete	ROHS3 Compliant
ECE-A1EKA220	Panasonic Electronic Components	22 µF	±20%	25 V	Not Specified	1000 Hrs @ 85°C	-40°C ~ 85°C	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-FC1E220	Panasonic Electronic Components	22 µF	±20%	25 V	950 mOhms	1000 Hrs @ 105°C	-55°C ~ 105°C	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-GA1C220	Panasonic Electronic Components	22 µF	±20%	16 V	Not Specified	1000 Hrs @ 105°C	-55°C ~ 105°C	0.276" (7.00 mm)	Active	ROHS3 Compliant
EEA-GA1E220	Panasonic Electronic Components	22 µF	±20%	25 V	Not Specified	1000 Hrs @ 105°C	-55°C ~ 105°C	0.276" (7.00 mm)	Active	ROHS3 Compliant
50YXJ22MTA5X11	Rubycon	22 µF	±20%	50 V	700 mOhms	5000 Hrs @ 105°C	-40°C ~ 105°C	0.492" (12.50 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Voltage, Active Status):

The ECE-A1CKS220 from Panasonic Electronic Components is the primary direct equivalent. It maintains the 22 µF capacitance, ±20% tolerance, and 16 V voltage rating with identical lead spacing and radial can package. The part is active and ROHS3 compliant. Height is 0.236" (6.00 mm), which is shorter than the original SS220M016ST at 0.276" (7.00 mm), allowing for improved PCB layout flexibility. This part is suitable for direct replacement in applications where the original SS220M016ST was specified.

Same-Voltage Upgrade (16 V, Enhanced Performance):

The EEA-GA1C220 from Panasonic Electronic Components provides a 16 V rated upgrade with extended operating temperature range (-55°C to 105°C) and 1000 Hrs @ 105°C lifetime rating. The part is active and ROHS3 compliant. Physical dimensions match the original part exactly (0.276" height), ensuring seamless PCB integration. This part is recommended for applications requiring enhanced temperature performance while maintaining the original voltage specification.

Higher-Voltage Upgrades (Circuit Margin Enhancement):

The ECE-A1EKA220 and EEA-GA1E220 from Panasonic Electronic Components both provide 25 V ratings with 22 µF capacitance. The ECE-A1EKA220 operates at 1000 Hrs @ 85°C with -40°C to 85°C temperature range. The EEA-GA1E220 offers extended temperature operation (-55°C to 105°C) with 1000 Hrs @ 105°C lifetime. Both parts are active and ROHS3 compliant with identical physical dimensions to the original part. Higher voltage ratings provide additional circuit margin for voltage transient protection.

The EEA-FC1E220 from Panasonic Electronic Components provides 25 V rating with automotive-grade AEC-Q200 certification, extended temperature range (-55°C to 105°C), and 1000 Hrs @ 105°C lifetime. This part is suitable for automotive and high-reliability applications.

Extended Performance Upgrade (50 V, Maximum Reliability):

The 50YXJ22MTA5X11 from Rubycon provides the highest voltage rating (50 V) with extended lifetime (5000 Hrs @ 105°C) and active product status. Operating temperature range extends to -40°C to 105°C. Lead spacing is 0.197" (5.00 mm) and height is 0.492" (12.50 mm), requiring PCB layout verification before selection. This part is recommended for applications requiring maximum voltage margin and extended operational lifetime.

Compatibility Considerations:

All substitute parts maintain the critical parameters of 22 µF capacitance, ±20% tolerance, polar polarization, through-hole mounting, and radial can package. All parts are ROHS3 compliant. Physical dimensions vary; height differences must be verified against PCB clearance requirements. Lead spacing of 0.079" (2.00 mm) is maintained across all direct equivalents and same-voltage upgrades, except for the 50YXJ22MTA5X11 which uses 0.197" (5.00 mm) spacing.

Frequently Asked Questions (FAQ)

Q: Can the SK220M016ST be used as a direct replacement for the SS220M016ST?

A: The SK220M016ST is electrically compatible as a direct equivalent, maintaining 22 µF capacitance, ±20% tolerance, and 16 V rating. However, the height is 0.512" (13.00 mm) compared to the original 0.276" (7.00 mm). PCB clearance must be verified before substitution. The SK220M016ST offers improved ESR (9.65 Ohm versus 10.25 Ohm) and extended lifetime (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C).

Q: What is the difference between 16 V and 25 V rated capacitors in this series?

A: The voltage rating indicates the maximum continuous voltage the capacitor can withstand. A 25 V rated capacitor can be used in circuits designed for 16 V operation, providing additional voltage margin for transient protection. However, the physical size may differ. The 25 V upgrades (ECE-A1EKA220, EEA-GA1E220, EEA-FC1E220) maintain the same physical dimensions as the original 16 V part, making them suitable for direct PCB substitution.

Q: Why does the 50YXJ22MTA5X11 have different lead spacing?

A: The 50YXJ22MTA5X11 uses 0.197" (5.00 mm) lead spacing compared to the standard 0.079" (2.00 mm) spacing of other parts in this series. This wider spacing is a design characteristic of the Rubycon YXJ series. PCB hole pattern compatibility must be verified before selection. This part is not suitable for direct PCB replacement without layout modification.

Q: What does "Lifetime @ Temperature" mean?

A: Lifetime @ Temperature specifies the expected operational duration at a given temperature before the capacitor reaches end-of-life criteria (typically 20% capacitance loss). The SS220M016ST has 1000 Hrs @ 85°C, meaning it maintains specified performance for 1000 hours at 85°C ambient temperature. Extended lifetime ratings (2000 Hrs or 5000 Hrs) indicate improved reliability and longer service life.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 compliant, matching the environmental compliance of the original SS220M016ST. This ensures compatibility with modern manufacturing and environmental regulations.

Q: Which substitute part is recommended for automotive applications?

A: The EEA-FC1E220 from Panasonic Electronic Components is rated for automotive applications with AEC-Q200 certification. It provides 25 V rating, extended temperature operation (-55°C to 105°C), and 1000 Hrs @ 105°C lifetime, making it suitable for automotive circuit designs.

Q: Can I use a higher voltage rated capacitor in place of the original 16 V part?

A: Yes, higher voltage rated capacitors (25 V or 50 V) can be used in circuits designed for 16 V operation. The higher voltage rating provides additional safety margin for voltage transients. However, physical dimensions must be verified for PCB compatibility. The 25 V upgrades maintain identical dimensions to the original part, while the 50 V part has different lead spacing and height.

Q: What is ESR and why does it matter?

A: Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor at a specified frequency. Lower ESR values indicate better performance, particularly in high-frequency ripple current applications. The SS220M016ST has 10.25 Ohm ESR @ 120 Hz. The SK220M016ST offers improved ESR at 9.65 Ohm. The 50YXJ22MTA5X11 provides 700 mOhms ESR, indicating superior high-frequency performance.

Q: Is the ECE-A1CKS220 a suitable replacement if PCB space is limited?

A: Yes, the ECE-A1CKS220 is an excellent choice for space-constrained applications. At 0.236" (6.00 mm) height, it is shorter than the original SS220M016ST (0.276" height), providing improved PCB layout flexibility. It maintains all critical electrical parameters and is active with ROHS3 compliance.

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