UVR1C331MPD1TA Equivalent & Substitute Parts

Part Overview

The UVR1C331MPD1TA is a 330 µF, 16 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 This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. Finding equivalent and substitute parts is necessary to maintain design flexibility, ensure supply chain continuity, and access components with improved performance characteristics or active product status.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.315" (8.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UVR1C331MPD1TA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 330 µF
Tolerance: ±20%
Polarization: Polar
Package Type: Radial, Can
Lead Spacing: 0.197" (5.00 mm)
Case Diameter: 0.315" (8.00 mm)
Mounting Type: Through Hole

Allowable Variations:

Voltage Rating: Equal or higher than 16 V (16 V or 25 V acceptable)
Operating Temperature Range: Equal or higher maximum temperature
Lifetime @ Temperature: Equal or higher rating
Ripple Current: Equal or higher capacity
Height: Minor variations within mechanical envelope
Packaging Format: Cut Tape (CT) or Tape & Box (TB) both acceptable

Substitutes are grouped by voltage rating upgrade path and performance tier, reflecting improvements in thermal stability and ripple current handling while maintaining identical footprint and lead configuration.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp. Max	Ripple Current @ 10 kHz	Height (Max)	Product Status	Packaging
UVR1C331MPD1TA	Nichicon	330 µF	16 V	±20%	2000 Hrs @ 85°C	85°C	555 mA	0.512" (13.00 mm)	Not For New Designs	Cut Tape (CT)
UVK1E331MPD1TA	Nichicon	330 µF	25 V	±20%	2000 Hrs @ 85°C	85°C	585 mA	0.512" (13.00 mm)	Not For New Designs	Cut Tape (CT)
ECA-1CM331B	Panasonic Electronic Components	330 µF	16 V	±20%	2000 Hrs @ 85°C	85°C	595 mA	0.492" (12.50 mm)	Active	Tape & Box (TB)
ECA-1EM331B	Panasonic Electronic Components	330 µF	25 V	±20%	2000 Hrs @ 85°C	85°C	663 mA	0.492" (12.50 mm)	Active	Tape & Box (TB)
EEU-FM1C331BJ	Panasonic Electronic Components	330 µF	16 V	±20%	3000 Hrs @ 105°C	105°C	950 mA	0.512" (13.00 mm)	Active	Cut Tape (CT)
EEU-FM1C331B	Panasonic Electronic Components	330 µF	16 V	±20%	3000 Hrs @ 105°C	105°C	950 mA	0.512" (13.00 mm)	Active	Cut Tape (CT)
EEU-FR1E331B	Panasonic Electronic Components	330 µF	25 V	±20%	6000 Hrs @ 105°C	105°C	950 mA	0.512" (13.00 mm)	Active	Cut Tape (CT)

Engineering Selection Recommendations

Direct Equivalent (Same Voltage, Active Status): ECA-1CM331B is the recommended direct substitute. It maintains 16 V rating and ±20% tolerance with identical electrical performance. Product status is Active, ensuring long-term availability. Height is 0.492" versus 0.512", which is acceptable within standard PCB layout tolerances for through-hole radial capacitors.

Voltage Upgrade Path (16 V to 25 V): UVK1E331MPD1TA, ECA-1EM331B, and EEU-FR1E331B provide 25 V rating while maintaining 330 µF capacitance. These are suitable for designs where higher voltage margin is beneficial. ECA-1EM331B and EEU-FR1E331B carry Active product status.

Enhanced Performance (Higher Temperature Rating): EEU-FM1C331BJ and EEU-FM1C331B offer 3000 Hrs @ 105°C lifetime with 950 mA ripple current at 10 kHz, compared to the original 2000 Hrs @ 85°C with 555 mA. These are suitable for applications requiring improved thermal stability. Both are Active products.

Maximum Performance (Highest Lifetime Rating): EEU-FR1E331B combines 25 V rating with 6000 Hrs @ 105°C lifetime and 950 mA ripple current. This represents the highest performance tier among available substitutes and is Active status.

All substitute parts are ROHS3 compliant and REACH unaffected, matching the original part's regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of a 16 V capacitor? A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The capacitor will function correctly in circuits designed for 16 V operation. Voltage derating improves reliability in applications with voltage transients or ripple.

Q: What is the difference between Cut Tape (CT) and Tape & Box (TB) packaging? A: Both are acceptable for through-hole assembly. Cut Tape is supplied on continuous tape and is typically used for automated pick-and-place operations. Tape & Box includes boxed quantities and is suitable for manual assembly or lower-volume production. Electrical performance is identical.

Q: Does the 0.492" height of ECA-1CM331B versus 0.512" of the original part affect PCB compatibility? A: No. The 0.020" (0.50 mm) difference is within standard PCB layout tolerances for radial through-hole capacitors. Both heights accommodate standard component spacing and do not require PCB redesign.

Q: Why should I consider EEU-FM1C331BJ or EEU-FR1E331B if they cost more? A: These parts offer extended lifetime ratings (3000 or 6000 Hrs @ 105°C versus 2000 Hrs @ 85°C) and higher ripple current capacity (950 mA versus 555 mA). Selection depends on application thermal environment and ripple current requirements. Use the original specification if thermal and ripple demands are met.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the regulatory status of UVR1C331MPD1TA.

Q: What does "Not For New Designs" mean for the original part? A: This designation indicates the UVR1C331MPD1TA has been superseded in Nichicon's product line. While existing inventory may be available, new designs should specify Active-status alternatives such as ECA-1CM331B, ECA-1EM331B, EEU-FM1C331BJ, or EEU-FR1E331B to ensure long-term supply continuity.

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