Equivalent & Substitute Parts for ECA-1VM101I

Part Overview

The ECA-1VM101I is a 100 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 85°C and is designed for general-purpose applications requiring polar capacitive energy storage. The part is currently active in production with ROHS3 compliance and is available in Tape & Box packaging.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions call for components from different manufacturers with identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.098" (2.50mm)
Case Diameter	0.248" (6.30mm)
Height (Seated Max)	0.480" (12.20mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence across the following parameters: capacitance value, voltage rating, tolerance, lifetime rating at operating temperature, operating temperature range, polarization type, lead spacing, case diameter, and height. All substitute parts listed maintain identical electrical specifications (100 µF, 35 V, ±20%, 2000 Hrs @ 85°C, -40°C ~ 85°C) and mechanical form factors compatible with the original design.

Substitutes are grouped into three categories:

Direct Equivalents (Packaging Variants): Parts with identical electrical and mechanical specifications but different packaging formats (Bulk vs. Tape & Box vs. Cut Tape). These are interchangeable at the component level.

Similar Equivalents (Minor Mechanical Variations): Parts with identical electrical specifications but variations in lead spacing or height within acceptable PCB layout tolerances. These require verification of PCB footprint compatibility.

Upgrade Equivalents (Enhanced Temperature Rating): Parts with superior thermal performance (higher lifetime temperature rating) that exceed the original specification and provide enhanced reliability margins.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Lead Spacing	Height (Max)	Product Status	Packaging
ECA-1VM101I	Panasonic	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.480" (12.20mm)	Active	Tape & Box
ECA-1VM101	Panasonic	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.480" (12.20mm)	Active	Bulk
ECA-1VM101B	Panasonic	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.480" (12.20mm)	Active	Not Specified
ESMG350ELL101MF11D	Chemi-Con	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.492" (12.50mm)	Active	Bulk
UFW1V101MED1TD	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.492" (12.50mm)	Obsolete	Cut Tape
UVK1V101MED1TD	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.492" (12.50mm)	Obsolete	Cut Tape
UVR1V101MED1TA	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete	Tape & Box
UVR1V101MED1TD	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.492" (12.50mm)	Obsolete	Cut Tape
UKA1V101MED1TD	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.492" (12.50mm)	Obsolete	Cut Tape
SK101M035ST	Cornell Dubilier Electronics	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.531" (14.60mm)	Active	Bulk
UVK1V101MED	Nichicon	100 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.492" (12.50mm)	Obsolete	Bulk

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Substitutes):

ECA-1VM101 (Panasonic, Bulk packaging) and ESMG350ELL101MF11D (Chemi-Con, Bulk packaging) are the preferred direct substitutes. Both maintain active product status, ROHS3 compliance, and identical electrical specifications. ECA-1VM101 is the same base part in alternative packaging. ESMG350ELL101MF11D provides cross-manufacturer equivalence with Chemi-Con's SMG series, offering supply chain diversification.

For Lead Spacing Accommodation:

ECA-1VM101B (Panasonic) and UVR1V101MED1TA (Nichicon) feature 0.197" (5.00mm) lead spacing, suitable for PCB layouts requiring wider pitch through-hole mounting. Both maintain the 2000 Hrs @ 85°C lifetime specification and ROHS3 compliance.

For Enhanced Thermal Performance:

UKA1V101MED1TD (Nichicon, UKA series) provides superior thermal characteristics with 2000 Hrs @ 105°C lifetime rating and extended operating temperature range (-55°C ~ 105°C). This upgrade equivalent is appropriate for applications requiring enhanced reliability margins or operation in elevated ambient conditions.

For Obsolete Part Replacement:

UFW1V101MED1TD, UVK1V101MED1TD, UVR1V101MED1TD, and UVK1V101MED (all Nichicon, obsolete status) are functionally equivalent to the primary part but are no longer in active production. These should be selected only when existing inventory must be consumed or when design legacy support is required. Active-status alternatives are preferred for new designs.

For Mechanical Accommodation:

SK101M035ST (Cornell Dubilier Electronics) accommodates larger PCB footprints with 0.138" (4.60mm) lead spacing and 0.531" (14.60mm) height. This part is suitable only when PCB layout constraints require larger case dimensions. ESR specification (1.59 Ohm) is provided for this part.

Frequently Asked Questions (FAQ)

Q: Can ECA-1VM101 (Bulk) be used as a direct replacement for ECA-1VM101I (Tape & Box)?

A: Yes. Both parts are identical in electrical and mechanical specifications. The difference is packaging format only. ECA-1VM101 in Bulk packaging is suitable for applications where tape-and-box presentation is not required by manufacturing processes.

Q: What is the difference between ECA-1VM101B and ECA-1VM101I?

A: The primary difference is lead spacing. ECA-1VM101B has 0.197" (5.00mm) lead spacing compared to ECA-1VM101I's 0.098" (2.50mm). Both maintain identical electrical specifications and case diameter. Substitution requires PCB footprint verification to ensure lead hole spacing compatibility.

Q: Can Nichicon UVR1V101MED1TD replace Panasonic ECA-1VM101I?

A: Electrically and mechanically, yes. Both are 100 µF, 35 V, ±20%, 2000 Hrs @ 85°C radial capacitors with 0.098" (2.50mm) lead spacing. However, UVR1V101MED1TD is obsolete. For new designs, active-status alternatives such as ESMG350ELL101MF11D are preferred.

Q: Is UKA1V101MED1TD a suitable substitute for ECA-1VM101I?

A: UKA1V101MED1TD is an upgrade equivalent with enhanced thermal performance (2000 Hrs @ 105°C vs. 2000 Hrs @ 85°C) and extended operating temperature range (-55°C ~ 105°C vs. -40°C ~ 85°C). It is electrically and mechanically compatible and provides superior reliability margins. However, it is obsolete. Use only when design requirements specifically call for enhanced thermal ratings.

Q: Why is SK101M035ST listed as a similar equivalent rather than a direct substitute?

A: SK101M035ST has different mechanical dimensions: 0.138" (4.60mm) lead spacing and 0.531" (14.60mm) height compared to the original 0.098" (2.50mm) spacing and 0.480" (12.20mm) height. These dimensional differences require PCB layout verification. Additionally, ESR is specified (1.59 Ohm) for this part, whereas ESR is not specified for the primary part.

Q: Can I use ESMG350ELL101MF11D in a design originally specified for ECA-1VM101I?

A: Yes. ESMG350ELL101MF11D (Chemi-Con SMG series) is electrically equivalent with identical capacitance, voltage, tolerance, and lifetime specifications. It is active in production with ROHS3 compliance. The height is 0.492" (12.50mm) versus 0.480" (12.20mm) for the original; verify PCB clearance constraints before substitution.

Q: What should I do if ECA-1VM101I becomes unavailable?

A: First priority: substitute with ECA-1VM101 (Panasonic, Bulk) or ESMG350ELL101MF11D (Chemi-Con). Both are active-status parts with identical electrical specifications. Second priority: if lead spacing accommodation is required, use ECA-1VM101B or UVR1V101MED1TA. Avoid obsolete-status parts (Nichicon UFW, UVK, UVR series) unless existing inventory must be consumed.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. All are also REACH Unaffected and classified as EAR99 for export control purposes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message