SS220M025ST Equivalent & Substitute Parts Reference

Part Overview

The SS220M025ST is a 22 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 1,098 units currently in stock. The part operates across a temperature range of -40°C to 85°C and is designed for general-purpose applications requiring polar electrolytic capacitance.

Due to the obsolete status of the SS220M025ST, equivalent and substitute parts are necessary for ongoing design support, production continuity, and long-term component availability. Substitute parts are selected based on matching or exceeding the electrical and mechanical specifications of the original component.

Key Parameters

Parameter	Value	Unit
Capacitance	22	µF
Voltage - Rated	25	V
Tolerance	±20%	—
ESR @ 120 Hz	9.05	Ohm
Lifetime @ 85°C	1000	Hrs
Operating Temperature Range	-40°C to 85°C	—
Ripple Current @ 120 Hz	51	mA
Lead Spacing	2.50	mm
Diameter	6.00	mm
Height (Seated Max)	7.00	mm
Mounting Type	Through Hole	—
Package / Case	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SS220M025ST are grouped into three categories based on substitution logic:

Direct Equivalents (Same Voltage Rating - 25 V):

SK220M025ST (Cornell Dubilier Electronics)
ECE-A1EKS220 (Panasonic Electronic Components)
EEA-GA1E220H (Panasonic Electronic Components)

These parts maintain the 25 V voltage rating and 22 µF capacitance. They are electrically compatible with the original specification and differ primarily in ESR characteristics, lifetime ratings, and physical dimensions within acceptable tolerances.

Voltage-Upgraded Substitutes (35 V and 50 V Ratings):

ECE-A1VKA220 (35 V, Panasonic Electronic Components)
EEA-GA1V220 (35 V, Panasonic Electronic Components)
ECE-A1HKA220 (50 V, Panasonic Electronic Components)

These parts exceed the original 25 V rating while maintaining 22 µF capacitance and ±20% tolerance. Higher voltage ratings provide additional design margin and are mechanically compatible with the original footprint. These are suitable for applications where voltage headroom is beneficial.

Substitution Criteria:

Capacitance: 22 µF (fixed)
Tolerance: ±20% (fixed)
Voltage Rating: 25 V minimum (direct equivalents) or higher (upgrades)
Polarization: Polar (fixed)
Mounting Type: Through Hole (fixed)
Package: Radial, Can (fixed)
Lead Spacing: 2.00 mm to 2.50 mm (compatible)
RoHS3 Compliance: Required

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR (Ohm)	Lifetime @ 85°C (Hrs)	Operating Temp (°C)	Ripple Current @ 120 Hz (mA)	Diameter (mm)	Height (mm)	Lead Spacing (mm)	Status
SS220M025ST	CDE	22	25	±20%	9.05	1000	-40 to 85	51	6.00	7.00	2.50	Obsolete
SK220M025ST	CDE	22	25	±20%	8.44	2000	-40 to 85	90	5.00	13.00	2.00	Active
ECE-A1EKS220	Panasonic	22	25	±20%	—	1000	-40 to 85	55	6.30	6.00	2.50	Active
EEA-GA1E220H	Panasonic	22	25	±20%	—	1000	-55 to 105	50	5.00	7.00	2.50	Active
ECE-A1VKA220	Panasonic	22	35	±20%	—	1000	-40 to 85	60	6.30	7.00	2.50	Active
EEA-GA1V220	Panasonic	22	35	±20%	—	1000	-55 to 105	70	6.30	7.00	2.50	Active
ECE-A1HKA220	Panasonic	22	50	±20%	—	1000	-40 to 85	60	6.30	7.00	2.50	Active

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specification):

Select ECE-A1EKS220 or EEA-GA1E220H as primary alternatives. Both are active-status components from Panasonic Electronic Components with 22 µF, 25 V ratings and ROHS3 compliance. ECE-A1EKS220 maintains the original operating temperature range (-40°C to 85°C), while EEA-GA1E220H extends the upper temperature limit to 105°C and lower limit to -55°C, providing enhanced thermal performance. EEA-GA1E220H offers significantly higher inventory availability (26,543 units) compared to ECE-A1EKS220 (4,377 units).

SK220M025ST from Cornell Dubilier Electronics is an active-status alternative from the original manufacturer. It provides improved ESR (8.44 Ohm versus 9.05 Ohm) and doubled lifetime rating (2000 hours versus 1000 hours at 85°C). Physical dimensions differ slightly (5.00 mm diameter, 13.00 mm height, 2.00 mm lead spacing), requiring PCB layout verification.

For Voltage-Upgraded Applications:

ECE-A1VKA220 and EEA-GA1V220 both provide 35 V ratings with 22 µF capacitance. EEA-GA1V220 extends the operating temperature range to -55°C to 105°C and offers higher ripple current capability (70 mA @ 120 Hz). ECE-A1HKA220 provides the highest voltage rating at 50 V, suitable for applications requiring maximum voltage margin.

All substitute parts are ROHS3 compliant and maintain through-hole, radial can package configuration compatible with the original footprint.

Frequently Asked Questions (FAQ)

Q: Can SK220M025ST be used as a direct replacement for SS220M025ST?

A: Yes. SK220M025ST is electrically compatible as a direct replacement. Both parts share 22 µF capacitance, 25 V voltage rating, and ±20% tolerance. SK220M025ST offers superior performance with lower ESR (8.44 Ohm versus 9.05 Ohm) and extended lifetime (2000 hours versus 1000 hours at 85°C). Physical dimensions differ slightly; verify PCB lead spacing (2.00 mm for SK220M025ST versus 2.50 mm for SS220M025ST) and height clearance (13.00 mm versus 7.00 mm).

Q: What is the difference between direct equivalents and voltage-upgraded substitutes?

A: Direct equivalents (ECE-A1EKS220, EEA-GA1E220H, SK220M025ST) maintain the 25 V rating and are electrically interchangeable. Voltage-upgraded substitutes (ECE-A1VKA220, EEA-GA1V220, ECE-A1HKA220) provide 35 V or 50 V ratings while maintaining 22 µF capacitance. Upgraded parts are mechanically compatible but operate at higher voltage margins, suitable for designs requiring additional safety headroom.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original SS220M025ST.

Q: Which substitute offers the widest operating temperature range?

A: EEA-GA1E220H and EEA-GA1V220 both operate across -55°C to 105°C, compared to the original -40°C to 85°C range. These parts are suitable for applications requiring extended thermal performance.

Q: Can ECE-A1HKA220 (50 V) be used in place of SS220M025ST (25 V)?

A: Yes. ECE-A1HKA220 is mechanically and electrically compatible. The 50 V rating exceeds the original 25 V specification, providing additional voltage margin. Physical dimensions are compatible (6.30 mm diameter, 7.00 mm height, 2.50 mm lead spacing). This substitution is suitable for applications where voltage headroom is beneficial.

Q: What inventory considerations apply to these substitutes?

A: EEA-GA1E220H offers the highest inventory availability (26,543 units). ECE-A1HKA220 provides 8,336 units. SK220M025ST offers 1,317 units. ECE-A1EKS220 provides 4,377 units. Inventory levels support production continuity for the obsolete SS220M025ST.

Q: Are there packaging differences among substitute parts?

A: Yes. SK220M025ST is supplied in Bulk packaging. ECE-A1EKS220, ECE-A1VKA220, ECE-A1HKA220, EEA-GA1V220 are supplied in Bulk packaging. EEA-GA1E220H is supplied in Cut Tape (CT) packaging. Verify packaging requirements for your procurement and assembly processes.

Q: How do ripple current ratings compare?

A: Ripple current @ 120 Hz varies across substitutes: SS220M025ST (51 mA), EEA-GA1E220H (50 mA), ECE-A1EKS220 (55 mA), SK220M025ST (90 mA), ECE-A1VKA220 (60 mA), EEA-GA1V220 (70 mA), ECE-A1HKA220 (60 mA). Higher ripple current capability indicates improved performance under AC stress conditions.

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