Equivalent & Substitute Parts for UTM1E101MHD

Part Overview

The Nichicon UTM1E101MHD is a 100 µF, 25 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 85°C. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The UTM series represents legacy component technology, and modern alternatives offer improved reliability metrics, extended operating temperature ranges, and longer service life ratings.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.197" (5.00 mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.492" Dia (12.50 mm)
Height - Seated (Max)	0.827" (21.00 mm)

Substitute Part Grouping Explanation

Substitution for the UTM1E101MHD is determined by the following mandatory parameters:

Capacitance: 100 µF (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Package / Case: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Substitute parts may exceed the original voltage rating (25 V) and operating temperature range (-40°C ~ 85°C), as higher ratings provide backward compatibility. Substitute parts may also provide extended lifetime ratings and improved thermal performance compared to the original specification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Size / Dimension	Height (Max)	Product Status
UTM1E101MHD	Nichicon	100 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.827" (21.00 mm)	Obsolete
UPX1V101MPD1TD	Nichicon	100 µF	35 V	±20%	20000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.394" Dia (10.00 mm)	0.846" (21.50 mm)	Obsolete
UCY2C101MHD	Nichicon	100 µF	160 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.846" (21.50 mm)	Active
100YXF100MEFC12.5X20	Rubycon	100 µF	100 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Not For New Designs
EGXE101ELL101MK20S	Chemi-Con	100 µF	100 V	±20%	5000 Hrs @ 125°C	-40°C ~ 125°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.846" (21.50 mm)	Discontinued at DiGi Electronics
EKXJ161ELL101MK20S	Chemi-Con	100 µF	160 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.846" (21.50 mm)	Active
ELXV101ELL101MK20S	Chemi-Con	100 µF	100 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.846" (21.50 mm)	Active

Engineering Selection Recommendations

Primary Recommendation: UCY2C101MHD (Nichicon)

The UCY2C101MHD is the preferred direct substitute. It maintains the same manufacturer (Nichicon) and identical lead spacing and capacitance specifications. The part is currently active in production, ensuring long-term availability. It provides a 160 V rating, which exceeds the original 25 V requirement, and extends the operating temperature range to -40°C ~ 105°C with a lifetime rating of 12000 hours at 105°C, representing a six-fold improvement over the original 2000-hour specification.

Secondary Recommendation: EKXJ161ELL101MK20S (Chemi-Con)

The EKXJ161ELL101MK20S offers equivalent electrical and mechanical compatibility with active product status. It carries AEC-Q200 automotive qualification and provides 160 V rating with 10000 hours lifetime at 105°C. This part is suitable for applications requiring automotive-grade reliability.

Alternative Recommendation: ELXV101ELL101MK20S (Chemi-Con)

The ELXV101ELL101MK20S provides a 100 V rating with active product status and AEC-Q200 qualification. It extends the operating temperature range to -55°C ~ 105°C, making it suitable for applications requiring lower temperature operation. Lifetime rating is 5000 hours at 105°C.

Not Recommended for New Designs: 100YXF100MEFC12.5X20 (Rubycon)

This part carries a "Not For New Designs" status and should not be selected for new applications despite meeting electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can the UTM1E101MHD be directly replaced with a higher voltage-rated substitute?

A: Yes. A substitute part with a higher voltage rating (35 V, 100 V, or 160 V) is electrically compatible with the original 25 V application. The higher voltage rating provides additional design margin and does not affect circuit operation.

Q: Are there physical size differences between the main part and substitutes?

A: The UPX1V101MPD1TD has a smaller diameter (0.394" vs. 0.492") and should not be used if PCB layout requires the original 0.492" diameter. All other substitutes maintain the 0.492" diameter and 5.00 mm lead spacing of the original part. Height variations range from 0.827" to 0.866", which may require PCB clearance verification in space-constrained applications.

Q: What is the significance of product status (Active, Obsolete, Discontinued)?

A: Active parts are in current production and offer the longest procurement window. Obsolete and discontinued parts have limited availability and may incur premium pricing or extended lead times. For new designs, select from parts with Active status: UCY2C101MHD, EKXJ161ELL101MK20S, or ELXV101ELL101MK20S.

Q: Does the extended lifetime rating of substitute parts affect circuit design?

A: No. The extended lifetime rating (5000 to 20000 hours at elevated temperatures) represents improved component reliability but does not change electrical performance or circuit behavior. The original circuit design remains valid with any substitute part.

Q: Are there packaging or supply chain differences between substitutes?

A: Yes. The UPX1V101MPD1TD is supplied in Cut Tape (CT) packaging, while other substitutes are supplied in Bulk packaging. Verify packaging compatibility with your procurement and assembly processes.

Q: Which substitute offers the best thermal performance?

A: The UPX1V101MPD1TD provides the highest lifetime rating (20000 hours at 105°C) and the widest operating temperature range (-55°C ~ 105°C), making it the best choice for high-temperature or long-life applications.

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