UVR2C331MHD Equivalent & Substitute Parts

Part Overview

The UVR2C331MHD is a 330 µF, 160 V aluminum electrolytic capacitor in radial can package manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is classified as not for new designs. Due to its obsolete status and limited thermal performance compared to modern alternatives, equivalent and substitute parts with improved specifications are available from multiple manufacturers. Substitutes offer higher voltage ratings, extended lifetime ratings, or enhanced ripple current handling while maintaining identical mechanical footprint and electrical capacitance.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime Rating	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Height	1.654" (42.00 mm)
Mounting Type	Through Hole Radial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mechanical Compatibility: All substitute parts maintain identical lead spacing (7.50 mm), case diameter (18.00 mm), and through-hole radial mounting configuration, ensuring direct PCB footprint compatibility.

Electrical Compatibility: All substitutes maintain 330 µF capacitance and ±20% tolerance. Voltage ratings of 160 V or higher are acceptable for direct substitution in circuits designed for 160 V operation.

Thermal Performance: Substitutes are grouped by operating temperature range and lifetime rating. Parts rated for 105°C operation or extended lifetime (12000 hours) provide improved reliability margins over the original 2000-hour, 85°C specification.

Regulatory Compliance: All substitutes maintain ROHS3 compliance and EAR99 classification, matching the original part's compliance profile.

Substitutes are categorized as:

Upgrade substitutes: Higher voltage rating (200 V or 250 V) or extended lifetime (12000 hours @ 105°C)
Direct substitutes: Identical 160 V rating with equivalent or improved thermal performance
Similar substitutes: Matching electrical specifications with minor dimensional or thermal variations

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Height (mm)	Product Status
UVR2C331MHD	Nichicon	330 µF	160 V	2000 Hrs @ 85°C	-40°C ~ 85°C	42.00	Not For New Designs
UAS2D331MHD	Nichicon	330 µF	200 V	2000 Hrs @ 105°C	-40°C ~ 105°C	42.00	Active
UCY2E331MHD9	Nichicon	330 µF	250 V	12000 Hrs @ 105°C	-40°C ~ 105°C	41.50	Active
ESMG161ELL331MMP1S	Chemi-Con	330 µF	160 V	2000 Hrs @ 85°C	-40°C ~ 85°C	37.00	Active
ESMQ161ELL331MMP1S	Chemi-Con	330 µF	160 V	2000 Hrs @ 85°C	-40°C ~ 85°C	37.00	Active
200PX330MEFC18X40	Rubycon	330 µF	200 V	2000 Hrs @ 105°C	-40°C ~ 105°C	42.00	Active
EKMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	2000 Hrs @ 105°C	-40°C ~ 105°C	41.50	Active
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	12000 Hrs @ 105°C	-40°C ~ 105°C	41.50	Active
ESMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	2000 Hrs @ 85°C	-40°C ~ 85°C	41.50	Active
SEK331M160ST	Cornell Dubilier Electronics	330 µF	160 V	2000 Hrs @ 105°C	-40°C ~ 105°C	42.00	Active
ECA-2CM331	Panasonic Electronic Components	330 µF	160 V	2000 Hrs @ 85°C	-25°C ~ 85°C	34.60	Obsolete

Engineering Selection Recommendations

For Active Production Designs: Select from parts with Active product status. UAS2D331MHD (Nichicon, 200 V) and UCY2E331MHD9 (Nichicon, 250 V) provide voltage margin and extended thermal performance while maintaining Nichicon manufacturing consistency. EKXJ251ELL331MM40S (Chemi-Con, 250 V) offers AEC-Q200 automotive qualification for applications requiring automotive-grade reliability.

For Direct 160 V Replacement: ESMG161ELL331MMP1S and ESMQ161ELL331MMP1S (both Chemi-Con, 160 V) provide electrical equivalence with active product status. Both maintain 2000-hour lifetime at 85°C but feature reduced height (37.00 mm vs. 42.00 mm), requiring PCB layout verification.

For Thermal Margin Enhancement: UCY2E331MHD9 and EKXJ251ELL331MM40S both provide 12000-hour lifetime at 105°C, delivering 6x extended operational life compared to the original specification. These parts are suitable for applications requiring enhanced reliability or operation in elevated ambient conditions.

For Voltage Margin: UAS2D331MHD (200 V) and 200PX330MEFC18X40 (Rubycon, 200 V) provide 25% voltage headroom. EKXJ251ELL331MM40S and UCY2E331MHD9 (both 250 V) provide 56% voltage margin, suitable for circuits with transient overvoltage conditions.

Compliance Consideration: All recommended substitutes maintain ROHS3 compliance. EKXJ251ELL331MM40S includes AEC-Q200 certification for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V or 250 V rated capacitor in a circuit designed for 160 V?

A: Yes. Higher voltage-rated capacitors are directly compatible in lower-voltage circuits. The 200 V and 250 V substitutes provide voltage margin and are suitable for direct replacement. No circuit modification is required.

Q: What is the difference between the Nichicon UAS2D331MHD and UCY2E331MHD9?

A: Both are Nichicon 330 µF radial capacitors with identical mechanical footprint. UAS2D331MHD is rated 200 V with 2000-hour lifetime at 105°C. UCY2E331MHD9 is rated 250 V with 12000-hour lifetime at 105°C, providing extended operational life and higher voltage margin.

Q: Why do some substitutes have different heights (37.00 mm vs. 42.00 mm)?

A: Chemi-Con SMG and SMQ series parts are manufactured with reduced height while maintaining identical lead spacing and case diameter. PCB layout must be verified to ensure clearance compatibility before substitution.

Q: Is the Panasonic ECA-2CM331 suitable as a replacement?

A: ECA-2CM331 is classified as obsolete and is not recommended for new designs. While electrically equivalent at 160 V, 330 µF, its reduced height (34.60 mm) and obsolete status make it unsuitable for production applications.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive-grade reliability qualification. EKXJ251ELL331MM40S carries this certification, indicating suitability for automotive applications requiring enhanced reliability testing and performance validation.

Q: Can I substitute based on ripple current specifications?

A: Ripple current capacity varies among substitutes. All listed substitutes meet or exceed the original part's ripple current specifications at their respective voltage ratings. Selection should prioritize voltage rating, lifetime, and product status over ripple current unless the application has specific ripple current requirements exceeding the original specification.

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