SN101M010ST Equivalent & Substitute Parts Reference

Part Overview

The SN101M010ST 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, indicating it is no longer in active production. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C and an equivalent series resistance of 2.65 Ohm at 120 Hz. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage - Rated	10 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 85°C
Polarization	Bi-Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.138" (3.50 mm)
Size / Dimension	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.453" (11.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SN101M010ST is determined by the following critical parameters: capacitance value (100 µF), tolerance (±20%), physical dimensions (0.315" diameter, 0.453" height, 0.138" lead spacing), mounting type (through hole radial), and package configuration (radial, can).

Substitute parts must maintain identical capacitance and tolerance specifications, identical physical footprint and lead spacing to ensure direct board-level compatibility, and identical mounting methodology. Voltage rating may be increased above the original 10 V specification, as higher voltage-rated capacitors are backward compatible in lower voltage applications. Operating temperature range and polarization must remain consistent.

The substitute parts identified are grouped into two categories:

Upgrade Substitutes (Higher Voltage Rating): ECE-A1CN101U (16 V), ECE-A1EN101U (25 V), and UVP1E101MPD (25 V) provide increased voltage headroom while maintaining all other critical parameters.

Similar Substitute (Equivalent Voltage Rating): UVP1C101MPD (16 V) offers a voltage rating above the original specification with equivalent performance characteristics.

Parameter Comparison

Parameter	SN101M010ST (Main)	ECE-A1CN101U	ECE-A1EN101U	UVP1E101MPD	UVP1C101MPD
Manufacturer	Cornell Dubilier Electronics	Panasonic Electronic Components	Panasonic Electronic Components	Nichicon	Nichicon
Capacitance	100 µF	100 µF	100 µF	100 µF	100 µF
Voltage - Rated	10 V	16 V	25 V	25 V	16 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Bi-Polar	Bi-Polar	Bi-Polar	Bi-Polar	Bi-Polar
Lifetime @ Temp.	1000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Lead Spacing	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)
Size / Dimension	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.453" (11.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

For Active Production and New Designs:

ECE-A1CN101U and ECE-A1EN101U from Panasonic Electronic Components are the primary recommended substitutes. Both parts are in active product status, ensuring long-term availability and supply chain continuity. Both are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. ECE-A1EN101U provides the highest voltage rating (25 V) and is suitable for applications requiring maximum voltage margin. ECE-A1CN101U provides a 16 V rating, offering a balance between voltage headroom and cost optimization.

For Legacy System Support:

UVP1E101MPD and UVP1C101MPD from Nichicon are classified as "Not For New Designs" and are suitable only for replacement in existing systems where the original SN101M010ST is being retired. These parts maintain full electrical and mechanical compatibility but should not be selected for new product development. UVP1C101MPD (16 V) and UVP1E101MPD (25 V) both provide extended lifetime specifications (2000 hours at 85°C) compared to the original part.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance. ECE-A1CN101U and ECE-A1EN101U carry REACH unaffected status, providing superior regulatory assurance. UVP1E101MPD and UVP1C101MPD are REACH affected, requiring additional compliance verification in regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute for the SN101M010ST?

A: Yes. A capacitor with a higher voltage rating (16 V or 25 V) is electrically compatible in an application designed for 10 V operation. Higher voltage ratings provide increased safety margin and do not degrade circuit performance. All substitute parts listed maintain the same capacitance (100 µF) and tolerance (±20%), ensuring functional equivalence.

Q: Are the physical dimensions identical across all substitute parts?

A: Yes. All substitute parts maintain identical physical dimensions: 0.315" diameter, 0.453" maximum seated height, and 0.138" lead spacing. This ensures direct board-level compatibility without PCB redesign or mechanical rework.

Q: What is the difference between "Active" and "Not For New Designs" product status?

A: "Active" status indicates the manufacturer continues production and guarantees long-term availability. "Not For New Designs" indicates the manufacturer is phasing out the product and does not recommend its use in new applications, though existing inventory may be available for legacy system support. For new product development, select only parts with "Active" status.

Q: How do the lifetime specifications compare?

A: The original SN101M010ST specifies 1000 hours at 85°C. All substitute parts provide 2000 hours at 85°C, representing a 100% improvement in rated lifetime. This extended lifetime provides enhanced reliability in thermal stress conditions.

Q: What is the significance of REACH status?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) is a European Union chemical safety regulation. "REACH Unaffected" indicates the part contains no substances of concern and requires no additional compliance documentation. "REACH Affected" indicates the part may contain regulated substances and requires compliance verification for EU market applications.

Q: Can I substitute ECE-A1EN101U for ECE-A1CN101U in the same application?

A: Yes. Both are Panasonic parts with identical capacitance, tolerance, and physical dimensions. ECE-A1EN101U provides a higher voltage rating (25 V vs. 16 V), making it suitable for any application using ECE-A1CN101U. The selection between them depends on circuit voltage requirements and cost optimization.

Q: Are there any ripple current differences I should consider?

A: Ripple current specifications vary among substitute parts. ECE-A1EN101U specifies 306 mA at 10 kHz (high frequency) and 180 mA at 120 Hz (low frequency). UVP1E101MPD specifies 240 mA at 10 kHz and 160 mA at 120 Hz. These differences reflect manufacturer design variations but do not affect substitution compatibility for general-purpose applications. Verify ripple current specifications only if the application involves high-frequency or high-current ripple conditions.

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