UVK1E331MPD1TA Equivalent & Substitute Parts

Part Overview

The UVK1E331MPD1TA is a 330 µF, 25 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is designed for general-purpose applications requiring through-hole mounting. The part is marked as not for new designs, making identification of suitable alternatives essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.315" (8.00 mm)
Operating Temperature Range	-40°C ~ 85°C
Lifetime Rating	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: capacitance value (330 µF), voltage rating (25 V), tolerance (±20%), polarization (polar), package configuration (radial can), mounting type (through hole), and lead spacing (5.00 mm). All substitute parts listed meet these core electrical and mechanical requirements.

The substitute parts are categorized as follows:

Direct Manufacturer Equivalent: ECA-1EM331B (Panasonic) matches all primary electrical specifications and physical dimensions with identical lead spacing and case diameter.

Upgrade Alternative: EEU-FR1E331B (Panasonic) provides enhanced performance characteristics including extended lifetime (6000 Hrs @ 105°C) and higher ripple current ratings while maintaining identical capacitance, voltage, and physical form factor.

Parametric Equivalent: 25PK330MEFCTA8X11.5 (Rubycon) satisfies all core electrical and mechanical parameters with equivalent lifetime and temperature specifications.

Parameter Comparison

Parameter	UVK1E331MPD1TA (Nichicon)	ECA-1EM331B (Panasonic)	EEU-FR1E331B (Panasonic)	25PK330MEFCTA8X11.5 (Rubycon)
Capacitance	330 µF	330 µF	330 µF	330 µF
Voltage Rating	25 V	25 V	25 V	25 V
Tolerance	±20%	±20%	±20%	±20%
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 85°C
Lifetime @ Rated Temp	2000 Hrs @ 85°C	2000 Hrs @ 85°C	6000 Hrs @ 105°C	2000 Hrs @ 85°C
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Case Diameter	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)
Height (Max)	0.512" (13.00 mm)	0.492" (12.50 mm)	0.512" (13.00 mm)	0.512" (13.00 mm)
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The ECA-1EM331B and 25PK330MEFCTA8X11.5 are direct parametric equivalents suitable for direct replacement in applications matching the original 2000 Hrs @ 85°C lifetime specification.

The EEU-FR1E331B represents an upgrade option for applications requiring extended operational life or higher temperature tolerance, offering 6000 hours at 105°C while maintaining identical electrical ratings and physical form factor. This part is recommended for designs requiring enhanced reliability margins.

All substitute parts maintain active product status, ensuring continued availability and supply chain stability compared to the original UVK1E331MPD1TA.

Frequently Asked Questions (FAQ)

Q: Can ECA-1EM331B be used as a direct replacement for UVK1E331MPD1TA?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), lead spacing (5.00 mm), case diameter (8.00 mm), and lifetime specification (2000 Hrs @ 85°C). The ECA-1EM331B has a maximum height of 12.50 mm compared to 13.00 mm for the original part, which may provide additional PCB clearance in space-constrained layouts.

Q: What is the advantage of EEU-FR1E331B over the other substitutes?

A: The EEU-FR1E331B provides extended lifetime (6000 Hrs @ 105°C) and higher ripple current ratings (665 mA @ 120 Hz and 950 mA @ 100 kHz) compared to the original specification (390 mA @ 120 Hz and 585 mA @ 10 kHz). This part is suitable for applications requiring enhanced thermal performance or higher current handling capability while maintaining identical electrical ratings.

Q: Are all substitute parts through-hole mounted?

A: Yes. All listed substitutes are through-hole mounted radial can capacitors with 5.00 mm lead spacing, compatible with standard PCB hole patterns designed for the UVK1E331MPD1TA.

Q: Do all substitutes meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original UVK1E331MPD1TA.

Q: Which substitute offers the best availability?

A: The EEU-FR1E331B has the highest inventory level (15,576 pcs) among the listed substitutes, followed by ECA-1EM331B (6,975 pcs) and 25PK330MEFCTA8X11.5 (746 pcs).

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