Nichicon UHE1E101MET Equivalent & Substitute Parts

Part Overview

The Nichicon UHE1E101MET is a 100 µF, 25 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The UHE series represents a legacy product line, making direct replacements essential for maintenance and repair applications requiring identical electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)
Height - Seated (Max)	0.433" (11.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the UHE1E101MET are classified based on strict electrical and mechanical parameter alignment:

Direct Manufacturer Substitutes (Nichicon): Parts maintaining identical capacitance (100 µF), voltage rating (25 V), tolerance (±20%), lifetime specification (5000 Hrs @ 105°C), operating temperature range (-40°C ~ 105°C), lead spacing (0.098" / 2.50 mm), case diameter (0.248" / 6.30 mm), and through-hole radial mounting configuration.

Similar Manufacturer Substitutes (Cross-Manufacturer): Parts from alternative manufacturers (Panasonic) meeting the same electrical specifications and mechanical footprint requirements, with allowable variations in height and ripple current ratings within acceptable design tolerances.

Substitution Criteria: All substitute parts must maintain:

Capacitance: 100 µF
Voltage Rating: 25 V
Tolerance: ±20%
Operating Temperature: -40°C ~ 105°C
Lead Spacing: 0.098" (2.50 mm)
Case Diameter: 0.248" (6.30 mm)
Mounting Type: Through Hole, Radial, Can package

Parameter Comparison

Parameter	UHE1E101MET (Main)	UHE1E101MED (Nichicon)	EEU-EB1E101S (Panasonic)
Manufacturer	Nichicon	Nichicon	Panasonic Electronic Components
Capacitance	100 µF	100 µF	100 µF
Voltage Rating	25 V	25 V	25 V
Tolerance	±20%	±20%	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)	0.248" (6.30 mm)	0.248" (6.30 mm)
Height - Seated (Max)	0.433" (11.00 mm)	0.433" (11.00 mm)	0.480" (12.20 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can
Polarization	Polar	Polar	Polar
Product Status	Obsolete	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

UHE1E101MED (Nichicon): Direct equivalent from the same manufacturer. Maintains identical electrical and mechanical specifications. Offers ROHS3 compliance and significantly higher inventory availability (176,517 pcs vs. 1,094 pcs). Recommended as primary substitute for direct replacement applications.

EEU-EB1E101S (Panasonic EB-A Series): Cross-manufacturer equivalent with active product status. Meets all critical electrical parameters and mechanical footprint requirements. Height variation (0.480" vs. 0.433") requires PCB layout verification for clearance-constrained applications. ROHS3 compliant. Suitable for new designs and applications where component height accommodation is feasible.

Selection between UHE1E101MED and EEU-EB1E101S depends on procurement strategy, inventory requirements, and physical space constraints on the target PCB assembly.

Frequently Asked Questions (FAQ)

Q: Can UHE1E101MED be used as a direct replacement for UHE1E101MET? A: Yes. Both parts share identical capacitance (100 µF), voltage rating (25 V), tolerance (±20%), operating temperature range (-40°C ~ 105°C), lead spacing (0.098" / 2.50 mm), case diameter (0.248" / 6.30 mm), and height (0.433" / 11.00 mm). The primary difference is packaging format (Bulk vs. standard) and RoHS compliance status.

Q: Is the Panasonic EEU-EB1E101S compatible with the original UHE1E101MET footprint? A: Electrical compatibility is confirmed. Mechanical compatibility requires verification of the height difference: EEU-EB1E101S measures 0.480" (12.20 mm) seated height versus 0.433" (11.00 mm) for the original part. PCB layout clearance must be confirmed before substitution.

Q: What are the key parameters that determine substitutability? A: Capacitance (100 µF), voltage rating (25 V), tolerance (±20%), operating temperature range (-40°C ~ 105°C), lead spacing (0.098" / 2.50 mm), case diameter (0.248" / 6.30 mm), and through-hole radial mounting configuration are the critical parameters. Variations in ripple current ratings and height are secondary considerations dependent on application requirements.

Q: Why is the original UHE1E101MET obsolete? A: The UHE series represents a legacy product line. Nichicon continues to support equivalent specifications through the UHE1E101MED variant and other series. Cross-manufacturer alternatives from Panasonic provide active product status with equivalent electrical and mechanical characteristics.

Q: Does RoHS compliance affect substitutability? A: RoHS compliance status does not affect electrical or mechanical substitutability. However, design requirements and regulatory obligations may mandate RoHS-compliant components. UHE1E101MED and EEU-EB1E101S both meet ROHS3 compliance, while the original UHE1E101MET does not.

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