UVY2C331MHD Equivalent & Substitute Parts

Part Overview

The UVY2C331MHD is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designated as Not For New Designs. Due to its obsolescence status and limited design lifecycle, identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support. Suitable alternatives must maintain the same capacitance, voltage rating, and mechanical compatibility while offering improved reliability or extended operational life.

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
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UVY2C331MHD is determined by the following mandatory parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 160 V (minimum; higher ratings are acceptable)
Lead Spacing: 0.295" (7.50 mm) (exact match required for PCB compatibility)
Case Diameter: 0.709" (18.00 mm) (exact match required for mechanical fit)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)
Tolerance: ±20% (exact match required)

Parts are grouped into the following categories:

Similar Substitutes (Nichicon UCY Series): UCY2C331MHD and UCY2C331MHD6 maintain identical electrical and mechanical specifications to the main part while offering extended lifetime (12000 hours at 105°C) and active product status. These are direct functional replacements with improved reliability.

Equivalent Substitutes (Nichicon UVZ Series): UVZ2C331MHD matches the original lifetime specification (2000 hours at 105°C) and mechanical dimensions but carries obsolescence status identical to the main part.

Cross-Manufacturer Equivalents (Rubycon, Chemi-Con, CDE): 160PX330MEFC18X31.5, EKMQ161ELL331MMP1S, EKXG161ELL331MMN3S, and SEK331M160ST provide equivalent electrical performance with identical mechanical compatibility. These parts are sourced from alternative manufacturers and maintain ROHS3 compliance.

Voltage-Upgraded Substitute (Chemi-Con EKXJ221ELL331MMP1S): This part increases the voltage rating to 220 V while maintaining 330 µF capacitance and identical mechanical dimensions. This substitution is valid only when the circuit design permits higher voltage ratings.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Case Dia	Height (Max)	Product Status	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz
UVY2C331MHD	Nichicon	330 µF	160 V	2000 Hrs	0.709"	1.476"	Not For New Designs	570 mA	655.5 mA
UCY2C331MHD	Nichicon	330 µF	160 V	12000 Hrs	0.630"	1.299"	Active	1.51 A	3.02 A
UCY2C331MHD6	Nichicon	330 µF	160 V	12000 Hrs	0.709"	1.043"	Active	1.445 A	2.89 A
UVZ2C331MHD	Nichicon	330 µF	160 V	2000 Hrs	0.709"	1.634"	Not For New Designs	750 mA	862.5 mA
160PX330MEFC18X31.5	Rubycon	330 µF	160 V	2000 Hrs	0.709"	1.319"	Active	570 mA	684 mA
EKMQ161ELL331MMP1S	Chemi-Con	330 µF	160 V	2000 Hrs	0.709"	1.457"	Active	705 mA	1.0575 A
EKXG161ELL331MMN3S	Chemi-Con	330 µF	160 V	10000 Hrs	0.709"	1.240"	Active	1.39 A	3.1275 A
SEK331M160ST	CDE	330 µF	160 V	2000 Hrs	0.709"	1.654"	Active	850 mA	1.36 A
EKXJ221ELL331MMP1S	Chemi-Con	330 µF	220 V	12000 Hrs	0.709"	1.457"	Active	1.44 A	3.24 A

Engineering Selection Recommendations

For Direct Replacement with Improved Reliability: UCY2C331MHD6 is the preferred substitute. It maintains identical case diameter (0.709"), lead spacing (0.295"), and mechanical footprint to the UVY2C331MHD while offering six times the operational lifetime (12000 hours versus 2000 hours at 105°C). Active product status ensures continued availability and supply chain stability.

For Equivalent Performance with Active Status: EKXG161ELL331MMN3S (Chemi-Con) provides 10000-hour lifetime at 105°C with identical mechanical dimensions and ROHS3 compliance. This part offers a balance between extended reliability and active market availability.

For Cross-Manufacturer Compatibility: 160PX330MEFC18X31.5 (Rubycon) and EKMQ161ELL331MMP1S (Chemi-Con) maintain the original 2000-hour lifetime specification with active product status and full ROHS3 compliance. These are suitable for applications where lifetime requirements match the original design.

For Higher Voltage Applications: EKXJ221ELL331MMP1S (Chemi-Con) increases the voltage rating to 220 V while maintaining 330 µF capacitance and identical mechanical compatibility. This substitution is valid only when circuit design permits operation at higher voltage ratings and when extended lifetime (12000 hours) is beneficial.

For Legacy System Maintenance: UVZ2C331MHD (Nichicon) provides equivalent electrical and mechanical specifications but carries the same obsolescence status as the original part. This option is suitable only when supply of the original UVY2C331MHD is exhausted and no other alternatives are available.

Frequently Asked Questions (FAQ)

Q: Can UCY2C331MHD be used as a direct replacement for UVY2C331MHD?

A: UCY2C331MHD is electrically and mechanically compatible but has a smaller case diameter (0.630" versus 0.709"). Verify PCB layout clearance before substitution. UCY2C331MHD6 is preferred as it maintains the identical 0.709" case diameter.

Q: What is the difference between UCY2C331MHD and UCY2C331MHD6?

A: Both parts are Nichicon UCY series with 330 µF, 160 V, and 12000-hour lifetime. UCY2C331MHD6 has a smaller height (1.043" versus 1.299") and maintains the original 0.709" case diameter, making it a superior direct replacement for UVY2C331MHD.

Q: Can EKXJ221ELL331MMP1S replace UVY2C331MHD in all applications?

A: EKXJ221ELL331MMP1S has a higher voltage rating (220 V versus 160 V) and extended lifetime (12000 hours). It is compatible only if the circuit design permits operation at 220 V. Verify voltage compatibility before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory compatibility with modern manufacturing and environmental standards.

Q: What is the impact of different ripple current ratings?

A: Ripple current capacity determines the maximum AC current the capacitor can handle without exceeding temperature limits. Higher ripple current ratings indicate improved thermal performance. Verify that the substitute part's ripple current meets or exceeds the original design requirements.

Q: Can I use a part with a different height if the case diameter matches?

A: Height differences may affect PCB layout and component clearance. Verify mechanical fit within the available board space before substitution. Parts with smaller heights (such as UCY2C331MHD6 at 1.043") may provide layout advantages.

Q: What does "Not For New Designs" status mean?

A: This designation indicates the part is in end-of-life phase and not recommended for new product development. For legacy system support and repair, equivalent parts with "Active" status are preferred to ensure long-term supply availability.

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