UVR0J331MEA Equivalent & Substitute Parts

Part Overview

The UVR0J331MEA is a 330 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	6.3 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.098" (2.50 mm)
Diameter	0.248" (6.30 mm)
Height (Max)	0.433" (11.00 mm)
Operating Temperature	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Ripple Current @ 120 Hz	270 mA
Ripple Current @ 10 kHz	405 mA
Polarization	Polar
RoHS Status	Non-compliant

Substitute Part Grouping Explanation

Substitution for the UVR0J331MEA is determined by strict equivalence across the following parameters: capacitance (330 µF), voltage rating (6.3 V), tolerance (±20%), package type (radial, can), mounting type (through hole), lead spacing (0.098" / 2.50 mm), and physical dimensions (0.248" diameter, 0.433" height maximum). Parts are grouped into three categories:

Direct Equivalents maintain identical electrical and mechanical specifications with only packaging variations (bulk vs. tape/reel). These include UVR0J331MED (Nichicon, bulk packaging) and 337SAK6R3M (Cornell Dubilier / Illinois Capacitor).

Upgrade Substitutes offer enhanced performance characteristics such as higher voltage ratings (10 V), extended temperature ranges (-55°C to 105°C), improved lifetime ratings (4000 hours at 105°C), or lower impedance values. These include UFW0J331MED, UFW1A331MED, UHE0J331MED, UKW1A331MED, and UPW0J331MED (all Nichicon series).

Cross-Manufacturer Alternatives provide equivalent specifications from different manufacturers with active product status and RoHS3 compliance. These include EKZE6R3ELL331MF11D (Chemi-Con), SEK331M6R3ST (Cornell Dubilier Electronics), and ECA-0JM331 (Panasonic).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Height (Max)	Lifetime @ Temp	Operating Temp	Product Status	RoHS Status
UVR0J331MEA	Nichicon	330 µF	6.3 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	Non-compliant
UVR0J331MED	Nichicon	330 µF	6.3 V	±20%	0.492" (12.50 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	ROHS3 Compliant
UFW0J331MED	Nichicon	330 µF	6.3 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	ROHS3 Compliant
UFW1A331MED	Nichicon	330 µF	10 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	ROHS3 Compliant
UHE0J331MED	Nichicon	330 µF	6.3 V	±20%	0.433" (11.00 mm)	4000 Hrs @ 105°C	-40°C ~ 105°C	Obsolete	ROHS3 Compliant
UKW1A331MED	Nichicon	330 µF	10 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	ROHS3 Compliant
UPW0J331MED	Nichicon	330 µF	6.3 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	Obsolete	ROHS3 Compliant
337SAK6R3M	Cornell Dubilier / Illinois Capacitor	330 µF	6.3 V	±20%	0.413" (10.50 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
EKZE6R3ELL331MF11D	Chemi-Con	330 µF	6.3 V	±20%	0.433" (11.00 mm)	2000 Hrs @ 105°C	-40°C ~ 105°C	Active	ROHS3 Compliant
SEK331M6R3ST	Cornell Dubilier Electronics	330 µF	6.3 V	±20%	0.453" (11.50 mm)	2000 Hrs @ 105°C	-55°C ~ 105°C	Active	ROHS3 Compliant
ECA-0JM331	Panasonic Electronic Components	330 µF	6.3 V	±20%	0.480" (12.20 mm)	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement in existing designs, UVR0J331MED (Nichicon, bulk packaging) provides identical electrical specifications with RoHS3 compliance. Height variation of 0.492" (12.50 mm) versus the original 0.433" (11.00 mm) requires PCB layout verification.

For new designs or applications requiring enhanced reliability, EKZE6R3ELL331MF11D (Chemi-Con) or SEK331M6R3ST (Cornell Dubilier Electronics) are recommended. Both offer active product status, RoHS3 compliance, and extended lifetime ratings of 2000 hours at 105°C. EKZE6R3ELL331MF11D maintains the original height specification of 0.433" (11.00 mm), while SEK331M6R3ST extends the operating temperature range to -55°C to 105°C.

For applications requiring higher voltage margin or extended temperature operation, UFW1A331MED or UKW1A331MED (both 10 V rated) provide upgraded specifications while maintaining the same physical footprint. UPW0J331MED extends the lower operating temperature limit to -55°C with 2000-hour lifetime at 105°C.

ECA-0JM331 (Panasonic) is suitable for general-purpose applications with active product status and RoHS3 compliance, though height is 0.480" (12.20 mm).

337SAK6R3M (Cornell Dubilier / Illinois Capacitor) offers the most compact height at 0.413" (10.50 mm) with active product status and RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can UVR0J331MED be used as a direct replacement for UVR0J331MEA?

A: UVR0J331MED is electrically equivalent with identical capacitance, voltage, tolerance, and ripple current specifications. The primary difference is height: 0.492" (12.50 mm) versus 0.433" (11.00 mm). PCB layout must accommodate the increased height. UVR0J331MED also carries RoHS3 compliance, whereas the original is non-compliant.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents maintain all electrical and mechanical parameters of the original part, with variations only in packaging format or compliance status. Upgrade substitutes offer enhanced performance such as higher voltage ratings (10 V instead of 6.3 V), extended temperature ranges, improved lifetime ratings, or lower impedance values. Upgrades are backward-compatible in most applications but may require design review for voltage-sensitive circuits.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant except the original UVR0J331MEA, which is non-compliant. For applications requiring RoHS compliance, any substitute part is suitable.

Q: Which substitute offers the best long-term reliability?

A: UHE0J331MED (Nichicon) provides 4000-hour lifetime at 105°C, the highest rating among all parts. EKZE6R3ELL331MF11D (Chemi-Con) and SEK331M6R3ST (Cornell Dubilier Electronics) both offer 2000-hour lifetime at 105°C with extended temperature ranges, providing superior reliability compared to the original 2000-hour rating at 85°C.

Q: Can I use a 10 V rated capacitor (UFW1A331MED or UKW1A331MED) in place of the 6.3 V original?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible in circuits designed for 6.3 V operation. The 10 V parts maintain identical capacitance, tolerance, and physical dimensions, making them suitable upgrades for improved reliability.

Q: What is the impact of height differences on PCB design?

A: Height variations range from 0.413" (337SAK6R3M) to 0.492" (UVR0J331MED and ECA-0JM331). The original UVR0J331MEA is 0.433" (11.00 mm). Parts with greater height may require clearance verification for enclosures or adjacent components. Parts with lesser height offer improved space efficiency.

Q: Are there active product alternatives to the obsolete UVR0J331MEA?

A: Yes. 337SAK6R3M (Cornell Dubilier / Illinois Capacitor), EKZE6R3ELL331MF11D (Chemi-Con), SEK331M6R3ST (Cornell Dubilier Electronics), and ECA-0JM331 (Panasonic) all carry active product status with RoHS3 compliance, ensuring long-term availability and supply chain stability.

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