UEP1C101MPD Equivalent & Substitute Parts

Part Overview

The UEP1C101MPD is a 100 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent and substitute parts is necessary for maintenance, repair, and legacy system support where original stock may be depleted or unavailable.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Bi-Polar
Lead Spacing	0.138" (4.60mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UEP1C101MPD is determined by the following critical parameters:

Capacitance: 100 µF (exact match required)
Voltage Rating: Minimum 16 V (equal or higher voltage rating is acceptable)
Tolerance: ±20% (matching tolerance specification)
Package / Case: Radial, Can (identical form factor)
Lead Spacing: 0.138" (4.60mm) (identical pin pitch for PCB compatibility)
Mounting Type: Through Hole (identical mounting method)
Operating Temperature Range: -55°C ~ 105°C (minimum requirement)
Lifetime @ Temperature: 1000 Hrs @ 105°C (minimum requirement)

Substitute parts must maintain identical mechanical dimensions and electrical ratings at or above the original specification to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Parameter	UEP1C101MPD (Main)	UEP1E101MPD (Substitute)	25NXA100MEFC8X11.5 (Substitute)
Manufacturer	Nichicon	Nichicon	Rubycon
Capacitance	100 µF	100 µF	100 µF
Voltage Rating	16 V	25 V	25 V
Tolerance	±20%	±20%	±20%
Lifetime @ Temperature	1000 Hrs @ 105°C	1000 Hrs @ 105°C	1000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Bi-Polar	Bi-Polar	Bi-Polar
Ripple Current @ 120 Hz	110 mA	110 mA	111 mA
Ripple Current @ 10 kHz	165 mA	165 mA	133.2 mA
Lead Spacing	0.138" (4.60mm)	0.138" (4.60mm)	0.138" (4.60mm)
Size / Dimension	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)	0.512" (13.00mm)	0.512" (13.00mm)
Package / Case	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Not For New Designs	Active

Engineering Selection Recommendations

UEP1E101MPD (Nichicon): This part is a direct mechanical and electrical upgrade from the UEP1C101MPD, with identical physical dimensions and lead spacing. The voltage rating is increased from 16 V to 25 V, providing additional design margin. Both parts share the same ROHS3 compliance and thermal specifications. However, this part is also classified as Not For New Designs, making it suitable only for legacy system replacement where Nichicon UEP series compatibility is required.

25NXA100MEFC8X11.5 (Rubycon): This part meets all mechanical and electrical substitution criteria with identical capacitance, tolerance, voltage rating (25 V), operating temperature range, and package dimensions. The key distinction is its Active product status, indicating ongoing manufacturer support and availability. This part is suitable for both legacy replacement and new production applications. Ripple current specifications at 10 kHz are lower than the original part (133.2 mA vs. 165 mA), which must be evaluated against circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can UEP1E101MPD be used as a direct replacement for UEP1C101MPD?

A: Yes. Both parts are manufactured by Nichicon with identical physical dimensions (0.315" diameter, 0.512" height, 0.138" lead spacing), capacitance (100 µF), tolerance (±20%), and thermal specifications (1000 Hrs @ 105°C). The UEP1E101MPD has a higher voltage rating (25 V vs. 16 V), which is acceptable for direct substitution in circuits designed for 16 V operation.

Q: Can 25NXA100MEFC8X11.5 be used as a direct replacement for UEP1C101MPD?

A: Yes. The Rubycon 25NXA100MEFC8X11.5 meets all mechanical and electrical requirements for direct substitution. It has identical capacitance, tolerance, voltage rating (25 V), operating temperature range, and package form factor. The part is manufactured by a different supplier but maintains full compatibility with the original PCB layout and circuit requirements.

Q: What is the significance of the voltage rating difference?

A: The UEP1C101MPD is rated for 16 V, while both substitute parts are rated for 25 V. A higher voltage rating does not affect circuit operation when used in a 16 V application; it only provides additional safety margin and typically extends component lifetime under the same operating conditions.

Q: Why is product status important for selection?

A: The UEP1C101MPD and UEP1E101MPD are both classified as Not For New Designs, indicating the manufacturer has discontinued active support. The 25NXA100MEFC8X11.5 is classified as Active, meaning Rubycon continues to manufacture and support this part. For new production designs, the Active part is preferred for long-term supply chain stability.

Q: Are there any ripple current differences to consider?

A: The 25NXA100MEFC8X11.5 has lower ripple current specifications at 10 kHz (133.2 mA vs. 165 mA). Circuit designs operating near the original ripple current limits must verify that the Rubycon part meets application requirements. Low-frequency ripple current (120 Hz) is nearly identical across all three parts.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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