SS101M010ST Equivalent & Substitute Parts Reference

Part Overview

The SS101M010ST is a 100 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 688 pieces available in current inventory. 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 SS101M010ST, identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and component procurement. Active alternatives from major manufacturers including Panasonic Electronic Components and Nichicon provide functional equivalence with improved availability and extended product lifecycles.

Key Parameters

Parameter	Value	Unit
Capacitance	100	µF
Voltage - Rated	10	V
Tolerance	±20%	—
ESR @ 120 Hz	2.65	Ohm
Lifetime @ 85°C	1000	Hrs
Operating Temperature Range	-40 to 85	°C
Ripple Current @ 120 Hz	80	mA
Ripple Current @ 1 kHz	88	mA
Lead Spacing	0.098 (2.50)	" (mm)
Case Diameter	0.248 (6.30)	" (mm)
Height - Seated (Max)	0.276 (7.00)	" (mm)
Mounting Type	Through Hole	—
Package / Case	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SS101M010ST is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 100 µF (exact match required)
Voltage Rating: 10 V minimum (equal or higher voltage ratings are acceptable)
Tolerance: ±20% (standard tolerance class)
Polarization: Polar (electrolytic type)
Mounting Type: Through Hole (radial lead configuration)
Package / Case: Radial, Can (physical form factor)
Lead Spacing: 0.098" (2.50 mm) (PCB layout compatibility)
Case Diameter: 0.248" (6.30 mm) (board space constraint)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 85°C minimum
RoHS3 Compliance: Required for regulatory alignment
ESR and Ripple Current: Performance characteristics that may vary within acceptable design margins

Substitute parts are grouped into the following categories based on these criteria:

Direct Equivalents: Parts matching all primary criteria with identical voltage rating (10 V) and compatible thermal specifications.

Parametric Equivalents: Parts matching all primary criteria with identical voltage rating and equivalent electrical performance.

Upgrade Substitutes: Parts matching all primary criteria with higher voltage ratings (16 V, 25 V) or extended temperature ranges, suitable for applications requiring enhanced margin or reliability.

Parameter Comparison

Parameter	SS101M010ST (Main)	SK101M010ST	ECE-A1AKS101	ECE-A1CKA101	EEA-GA1A101	UHE1E101MED	ECE-A1AKA101
Manufacturer	CDE	CDE	Panasonic	Panasonic	Panasonic	Nichicon	Panasonic
Capacitance (µF)	100	100	100	100	100	100	100
Voltage Rating (V)	10	10	10	16	10	25	10
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Operating Temp Range (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-55 to 105	-40 to 105	-40 to 85
Lifetime @ 85°C (Hrs)	1000	2000	1000	1000	1000	—	1000
Lifetime @ 105°C (Hrs)	—	—	—	—	1000	5000	—
Lead Spacing (mm)	2.50	2.00	2.50	2.50	2.50	2.50	2.50
Case Diameter (mm)	6.30	5.00	6.30	6.30	6.30	6.30	6.30
Height - Seated Max (mm)	7.00	13.00	6.00	7.00	7.00	11.00	7.00
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Product Status	Obsolete	Active	Active	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Recommended Priority):

ECE-A1AKA101 (Panasonic Electronic Components) is the primary direct substitute. This part matches all critical electrical parameters: 100 µF capacitance, 10 V voltage rating, ±20% tolerance, and identical physical dimensions (0.248" diameter, 0.276" height, 0.098" lead spacing). The part is active in production with 3,807 pieces in inventory. RoHS3 compliance and REACH unaffected status align with regulatory requirements. Operating temperature range (-40°C to 85°C) and 1000-hour lifetime at 85°C match the original specification.

ECE-A1AKS101 (Panasonic Electronic Components) provides direct electrical equivalence with identical 10 V rating and 100 µF capacitance. Physical dimensions match the original part exactly. This part is active with 9,774 pieces in inventory, providing superior availability. RoHS3 compliance and REACH unaffected status are confirmed. The 1000-hour lifetime at 85°C meets the original specification.

SK101M010ST (Cornell Dubilier Electronics) maintains manufacturer continuity within the CDE product line. This part is active with 1,165 pieces available. Electrical specifications match: 100 µF, 10 V, ±20% tolerance. The 2000-hour lifetime at 85°C exceeds the original 1000-hour specification, providing enhanced reliability margin. Lead spacing differs at 0.079" (2.00 mm) versus the original 0.098" (2.50 mm), requiring PCB layout verification. Case diameter is reduced to 0.197" (5.00 mm), and height is increased to 0.512" (13.00 mm), necessitating board space assessment.

Upgrade Substitutes (Enhanced Performance):

EEA-GA1A101 (Panasonic Electronic Components) provides upgraded thermal performance with extended operating temperature range (-55°C to 105°C) and 1000-hour lifetime at 105°C. Electrical parameters remain identical: 100 µF, 10 V, ±20% tolerance. Physical dimensions match the original exactly. This part is active with 8,891 pieces in inventory. RoHS3 compliance and REACH unaffected status are confirmed. Selection is appropriate for applications requiring enhanced temperature margin or operation in elevated ambient conditions.

ECE-A1CKA101 (Panasonic Electronic Components) offers voltage rating upgrade to 16 V while maintaining 100 µF capacitance and ±20% tolerance. Physical dimensions match the original part. This part is active with 2,568 pieces in inventory. RoHS3 compliance and REACH unaffected status are confirmed. Selection is appropriate for applications where voltage margin enhancement is required or where 16 V rated components are preferred for design standardization.

UHE1E101MED (Nichicon) provides significant voltage and thermal upgrades: 25 V rating, 5000-hour lifetime at 105°C, and extended operating range (-40°C to 105°C). Capacitance remains 100 µF with ±20% tolerance. Physical dimensions match the original case diameter and lead spacing. This part is obsolete but has 176,517 pieces in inventory. RoHS3 compliance and REACH unaffected status are confirmed. Selection is appropriate for applications requiring maximum reliability margin and extended service life, despite obsolete status.

Product Status Considerations:

Active substitute parts (ECE-A1AKA101, ECE-A1AKS101, EEA-GA1A101, ECE-A1CKA101) are recommended for new designs and long-term production planning. These parts ensure sustained availability and manufacturer support throughout the product lifecycle.

The SK101M010ST (CDE, active) maintains single-manufacturer sourcing continuity and is suitable for existing production lines requiring minimal qualification effort.

The UHE1E101MED (Nichicon, obsolete) and SS101M010ST (CDE, obsolete) should be reserved for legacy system support or applications where existing inventory is sufficient for the remaining product lifecycle.

Frequently Asked Questions (FAQ)

Q: Can the SK101M010ST replace the SS101M010ST directly on the PCB?

A: Electrical substitution is direct. However, physical layout verification is required. The SK101M010ST has different dimensions: lead spacing is 0.079" (2.00 mm) versus the original 0.098" (2.50 mm), case diameter is 0.197" (5.00 mm) versus 0.248" (6.30 mm), and height is 0.512" (13.00 mm) versus 0.276" (7.00 mm). PCB footprint and board space must be assessed before implementation.

Q: What is the difference between ECE-A1AKA101 and ECE-A1AKS101?

A: Both parts are Panasonic direct equivalents with identical electrical specifications (100 µF, 10 V, ±20% tolerance) and physical dimensions. The primary difference is inventory availability: ECE-A1AKS101 has 9,774 pieces versus 3,807 pieces for ECE-A1AKA101. Both are active products with RoHS3 compliance and REACH unaffected status.

Q: When should I select EEA-GA1A101 instead of ECE-A1AKA101?

A: Select EEA-GA1A101 when the application requires extended operating temperature range (-55°C to 105°C) or when 1000-hour lifetime at 105°C is specified. Both parts have identical electrical parameters (100 µF, 10 V, ±20% tolerance) and physical dimensions. EEA-GA1A101 is appropriate for industrial, automotive, or high-temperature environments.

Q: Is ECE-A1CKA101 a suitable substitute if my circuit operates at 10 V?

A: Yes. ECE-A1CKA101 has a 16 V rating, which is higher than the 10 V requirement. In electrolytic capacitors, a higher voltage rating does not affect performance in lower-voltage applications. The 16 V rating provides additional voltage margin and is suitable for 10 V operation. Capacitance (100 µF) and tolerance (±20%) are identical to the original part.

Q: What are the compliance implications of selecting these substitute parts?

A: All recommended substitute parts are RoHS3 compliant and REACH unaffected, matching the original SS101M010ST compliance status. No additional regulatory qualification is required. All parts are suitable for applications subject to RoHS3 and REACH requirements.

Q: Can I use UHE1E101MED in production despite its obsolete status?

A: UHE1E101MED is electrically and mechanically compatible with the SS101M010ST. However, its obsolete status means no new production is available from Nichicon. Current inventory of 176,517 pieces may support legacy applications or existing production runs with defined end-of-life dates. For new designs or long-term production, active alternatives (ECE-A1AKA101, ECE-A1AKS101, EEA-GA1A101, ECE-A1CKA101) are recommended.

Q: What is the impact of ESR differences between substitute parts?

A: The SS101M010ST specifies 2.65 Ohm ESR @ 120 Hz. The SK101M010ST specifies 2.52 Ohm ESR, which is lower and represents improved performance. Other substitute parts do not specify ESR values in the provided data. ESR differences within this range are typically acceptable for general-purpose applications. Applications with specific ESR requirements (high-frequency ripple filtering, low-impedance circuits) should verify ESR specifications with the manufacturer.

Q: Are there any height restrictions that would prevent using SK101M010ST?

A: Yes. The SK101M010ST has a maximum seated height of 0.512" (13.00 mm) compared to the original 0.276" (7.00 mm). This represents a 4.86 mm increase in height. If the PCB has height constraints due to enclosure design, component stacking, or adjacent components, the SK101M010ST may not fit. Physical board layout verification is mandatory before selection.

Q: What is the difference between the CDE SK series and Panasonic KA series?

A: Both are 100 µF, 10 V radial aluminum electrolytic capacitors with ±20% tolerance and RoHS3 compliance. The SK101M010ST (CDE) offers 2000-hour lifetime at 85°C, exceeding the original 1000-hour specification. Panasonic KA series parts (ECE-A1AKA101, ECE-A1AKS101) provide 1000-hour lifetime at 85°C, matching the original. Selection depends on manufacturer preference, inventory availability, and thermal reliability requirements.

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