Equivalent & Substitute Parts for UVZ2C331MHD

Part Overview

The Nichicon UVZ2C331MHD is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package format with a 2000-hour lifetime rating at 105°C. This component is classified as "Not For New Designs," indicating it has been superseded in Nichicon's product portfolio.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 for ongoing maintenance, repair, and legacy system support where this capacitor specification remains required.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Height (Seated Max)	1.634" (41.50 mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UVZ2C331MHD is determined by the following criteria:

Primary Substitution Parameters:

Capacitance value: 330 µF (exact match required)
Voltage rating: 160 V minimum (equal or higher voltage ratings are acceptable)
Tolerance: ±20% (standard tolerance for this category)
Package type: Radial, Can (mechanical compatibility)
Lead spacing: 0.295" (7.50 mm) (PCB footprint compatibility)
Case diameter: 0.709" (18.00 mm) (board space constraint)
Mounting type: Through Hole (assembly method compatibility)

Secondary Considerations:

Lifetime rating: 2000 hours minimum at 105°C (functional reliability)
Operating temperature range: -40°C to 105°C (environmental compatibility)
RoHS3 compliance (regulatory requirement)

Substitute parts are grouped into three categories: direct upgrades (higher voltage or longer lifetime with identical mechanical footprint), compatible alternatives (same electrical and mechanical specifications from different manufacturers), and similar parts (same capacitance and voltage with minor dimensional variations).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Case Dia (mm)	Height (mm)	Product Status	RoHS3
UVZ2C331MHD	Nichicon	330 µF	160 V	2000 Hrs	18.00	41.50	Not For New Designs	Compliant
UAS2D331MHD	Nichicon	330 µF	200 V	2000 Hrs	18.00	42.00	Active	Compliant
UCY2E331MHD9	Nichicon	330 µF	250 V	12000 Hrs	18.00	41.50	Active	Compliant
UVY2D331MHD	Nichicon	330 µF	200 V	2000 Hrs	18.00	42.00	Not For New Designs	Compliant
UCY2C331MHD	Nichicon	330 µF	160 V	12000 Hrs	16.00	33.00	Active	Compliant
UCY2C331MHD6	Nichicon	330 µF	160 V	12000 Hrs	18.00	26.50	Active	Compliant
200PX330MEFC18X40	Rubycon	330 µF	200 V	2000 Hrs	18.00	42.00	Active	Compliant
EKMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	2000 Hrs	18.00	41.50	Active	Compliant
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	12000 Hrs	18.00	41.50	Active	Compliant
ECA-2CHG331	Panasonic	330 µF	160 V	2000 Hrs	18.00	34.60	Obsolete	Compliant
EKXG161ELL331MMN3S	Chemi-Con	330 µF	160 V	10000 Hrs	18.00	31.50	Active	Compliant

Engineering Selection Recommendations

Direct Upgrade Path (Recommended for New Designs): UCY2E331MHD9 (Nichicon) provides the most comprehensive upgrade. It maintains the 330 µF capacitance and 18.00 mm case diameter with identical lead spacing. The voltage rating increases from 160 V to 250 V, providing additional design margin. The lifetime extends from 2000 hours to 12000 hours at 105°C, significantly improving reliability. This part is Active status and ROHS3 compliant.

Active Manufacturer Alternatives (Same Voltage Rating): EKXG161ELL331MMN3S (Chemi-Con) matches the 160 V rating with 330 µF capacitance and maintains mechanical compatibility. It offers 10000-hour lifetime at 105°C, a substantial improvement over the original 2000-hour rating. Height is reduced to 31.50 mm, which may provide board space advantages in constrained layouts.

Cross-Manufacturer Compatibility (200 V Rating): EKMQ201ELL331MM40S (Chemi-Con) and 200PX330MEFC18X40 (Rubycon) both provide 200 V rated alternatives with identical 330 µF capacitance and 18.00 mm case diameter. These are suitable where circuit voltage margins permit the higher rating. Both are Active status products.

Avoid for New Designs: UVY2D331MHD and ECA-2CHG331 carry "Not For New Designs" or "Obsolete" status respectively. These should be used only for direct replacement in existing equipment where the original part number is specified.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. A 200 V or 250 V rated capacitor is electrically compatible in a circuit designed for 160 V operation. Higher voltage ratings provide additional safety margin and do not degrade circuit performance. Verify that the case diameter and height remain within PCB layout constraints.

Q: What is the difference between 2000-hour and 12000-hour lifetime ratings? A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches specified limits. A 12000-hour rating provides six times longer service life under identical thermal conditions. For applications with continuous operation or elevated ambient temperatures, longer lifetime ratings reduce replacement frequency.

Q: Are Nichicon, Chemi-Con, Rubycon, and Panasonic capacitors interchangeable? A: Yes, provided electrical specifications (capacitance, voltage, tolerance) and mechanical dimensions (case diameter, height, lead spacing) match. All listed manufacturers produce aluminum electrolytic capacitors to industry standards. Verify RoHS and REACH compliance status for your application requirements.

Q: Does the 0.295" (7.50 mm) lead spacing apply to all substitutes? A: Yes. All listed substitute parts maintain 0.295" lead spacing for PCB footprint compatibility. However, case diameter and height vary. Confirm that the specific substitute part dimensions fit within your board layout before procurement.

Q: Why is UCY2C331MHD listed with a smaller case diameter (16.00 mm)? A: UCY2C331MHD has a 16.00 mm case diameter compared to the original 18.00 mm. While it maintains the same 0.295" lead spacing and 330 µF capacitance at 160 V, the reduced diameter may not fit existing PCB holes designed for 18.00 mm cans. Verify mechanical compatibility before substitution.

Q: Is REACH compliance important for my application? A: REACH compliance status is provided for regulatory tracking. Most listed parts are either "REACH Unaffected" or "REACH Affected." Verify your regional regulatory requirements. For EU applications, REACH compliance may be mandatory depending on end-use classification.

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