UVP1E331MHD1TO Equivalent & Substitute Parts

Part Overview

The UVP1E331MHD1TO is a 330 µF, 25 V aluminum electrolytic capacitor in radial configuration 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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line.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 to ensure design continuity, maintain supply chain flexibility, and support legacy system maintenance where this capacitor is currently deployed.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Bi-Polar
Ripple Current @ 120 Hz	450 mA
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the UVP1E331MHD1TO are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Capacitance value: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Operating temperature range: -40°C ~ 85°C (exact match required)
Polarization: Bi-Polar (exact match required)
Lead spacing: 0.197" (5.00 mm) (exact match required)
Case diameter: 0.492" (12.50 mm) (exact match required)
Height: 0.866" (22.00 mm) (exact match required)
Mounting type: Through Hole (exact match required)
Package type: Radial, Can (exact match required)

Voltage rating may be equal to or higher than the original specification, as a higher-rated capacitor maintains backward compatibility in the circuit. Ripple current specifications may vary within acceptable ranges for the application. All substitute parts must maintain ROHS3 compliance and be suitable for the intended application environment.

Parameter Comparison

Parameter	UVP1E331MHD1TO (Nichicon)	ECE-A1EN331UB (Panasonic)	ECE-A1VN331UB (Panasonic)
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	25 V	25 V	35 V
Tolerance	±20%	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Bi-Polar	Bi-Polar	Bi-Polar
Ripple Current @ 120 Hz	450 mA	350 mA	450 mA
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Height (Seated Max)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Not For New Designs	Active	Active

Engineering Selection Recommendations

ECE-A1EN331UB (Panasonic) is a parametric equivalent to the UVP1E331MHD1TO, matching all electrical and mechanical specifications including the 25 V voltage rating. This part is classified as Active, ensuring continued availability and supply chain support. It is ROHS3 compliant and suitable for direct substitution in applications where the original Nichicon part is currently used.

ECE-A1VN331UB (Panasonic) is an upgrade substitute with a higher voltage rating of 35 V while maintaining all other electrical and mechanical parameters. This part is also classified as Active with ROHS3 compliance. The elevated voltage rating provides additional design margin in circuits operating at or near the 25 V specification limit. This part is suitable for applications where increased voltage headroom is beneficial or required.

Both Panasonic alternatives are manufactured to the same physical form factor and electrical performance envelope as the original Nichicon component, ensuring compatibility with existing printed circuit board layouts and circuit designs.

Frequently Asked Questions (FAQ)

Q: Can ECE-A1EN331UB be used as a direct replacement for UVP1E331MHD1TO?

A: Yes. ECE-A1EN331UB is a parametric equivalent with identical capacitance (330 µF), voltage rating (25 V), tolerance (±20%), temperature range (-40°C ~ 85°C), and physical dimensions. Both parts are bi-polar radial aluminum electrolytic capacitors with 0.197" lead spacing and 0.866" maximum height. The parts are mechanically and electrically interchangeable.

Q: What is the difference between ECE-A1EN331UB and ECE-A1VN331UB?

A: Both parts share identical capacitance, tolerance, temperature range, and physical dimensions. The primary difference is voltage rating: ECE-A1EN331UB is rated at 25 V (matching the original), while ECE-A1VN331UB is rated at 35 V. Additionally, ECE-A1EN331UB specifies 350 mA ripple current at 120 Hz, while ECE-A1VN331UB specifies 450 mA at 120 Hz, matching the original part's ripple current specification.

Q: Why would I choose the 35 V rated ECE-A1VN331UB over the 25 V rated ECE-A1EN331UB?

A: The 35 V rated part provides increased voltage margin in circuits where the supply voltage may approach or exceed nominal 25 V levels. This is particularly valuable in applications with voltage transients, ripple, or tolerance stack-up concerns. Both parts are physically identical and fit the same PCB footprint.

Q: Are both substitute parts available in the same packaging as the original?

A: ECE-A1EN331UB is supplied in Tape & Box (TB) packaging. The original UVP1E331MHD1TO is supplied in Cut Tape (CT) packaging. Both packaging formats are standard for through-hole radial capacitors and do not affect component performance or PCB assembly compatibility. Packaging selection depends on assembly process requirements and inventory management preferences.

Q: Do the substitute parts meet the same compliance standards as the original?

A: Yes. Both ECE-A1EN331UB and ECE-A1VN331UB are ROHS3 compliant, matching the original part's compliance status. Both parts carry ECCN EAR99 and HTSUS 8532.22.0020 classifications consistent with the original component.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message