Equivalent & Substitute Parts for UVR2C331MHA

Part Overview

The Nichicon UVR2C331MHA is a 330 µF, 160 V radial aluminum electrolytic capacitor designed for general-purpose applications. With a rated lifetime of 2000 hours at 85°C and through-hole mounting, this component serves in power supply filtering, energy storage, and signal coupling circuits. The UVR series is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution for the UVR2C331MHA is determined by the following criteria:

Direct Equivalents maintain identical electrical specifications: 330 µF capacitance, 160 V voltage rating, ±20% tolerance, and through-hole radial can packaging with matching lead spacing (7.50mm) and case diameter (18.00mm). These parts are interchangeable without circuit modification.

Upgrade Substitutes increase voltage rating (200 V or 250 V) or extend lifetime ratings (up to 12000 hours at 105°C) while maintaining 330 µF capacitance, ±20% tolerance, and identical mechanical dimensions. These provide enhanced performance margins and are electrically compatible in applications rated for 160 V or lower.

Similar Parts match the core electrical specifications (330 µF, 160 V, ±20%) and mechanical form factor but may have minor dimensional variations in height or different thermal ratings. These require verification of space constraints and thermal operating conditions.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Product Status	RoHS Status
UVR2C331MHA	Nichicon	330 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	1.654" (42.00mm)	Obsolete	Non-compliant
ESMG161ELL331MMP1S	Chemi-Con	330 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	1.457" (37.00mm)	Active	ROHS3 Compliant
ESMQ161ELL331MMP1S	Chemi-Con	330 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	1.457" (37.00mm)	Active	ROHS3 Compliant
SEK331M160ST	Cornell Dubilier Electronics	330 µF	160 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	1.654" (42.00mm)	Active	ROHS3 Compliant
ECA-2CM331	Panasonic Electronic Components	330 µF	160 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	1.319" (34.60mm)	Obsolete	ROHS3 Compliant
UAS2D331MHD	Nichicon	330 µF	200 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	1.654" (42.00mm)	Active	ROHS3 Compliant
ESMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	1.634" (41.50mm)	Active	ROHS3 Compliant
EKMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	1.634" (41.50mm)	Active	ROHS3 Compliant
200PX330MEFC18X40	Rubycon	330 µF	200 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	1.654" (42.00mm)	Active	ROHS3 Compliant
UCY2E331MHD9	Nichicon	330 µF	250 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	1.634" (41.50mm)	Active	ROHS3 Compliant
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	1.634" (41.50mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (160 V, 2000 Hrs @ 85°C):

ESMG161ELL331MMP1S and ESMQ161ELL331MMP1S from Chemi-Con are active-status direct equivalents with ROHS3 compliance. Both maintain 330 µF capacitance, 160 V rating, and ±20% tolerance. Height is reduced to 1.457" (37.00mm), which accommodates space-constrained layouts. These are preferred for new designs requiring RoHS compliance.

SEK331M160ST from Cornell Dubilier Electronics provides an alternative with identical height (1.654") to the original part and extends operating temperature to 105°C. ROHS3 compliance and active product status support long-term availability.

For Enhanced Performance (200 V or 250 V Rating):

UAS2D331MHD (Nichicon, 200 V) and UCY2E331MHD9 (Nichicon, 250 V) are Nichicon-family upgrades maintaining mechanical compatibility. UAS2D331MHD extends thermal rating to 2000 Hrs @ 105°C. UCY2E331MHD9 provides the highest performance margin with 12000 Hrs @ 105°C and 250 V rating, suitable for demanding thermal environments.

EKMQ201ELL331MM40S (Chemi-Con, 200 V) and EKXJ251ELL331MM40S (Chemi-Con, 250 V) offer equivalent performance with ROHS3 compliance. EKXJ251ELL331MM40S includes AEC-Q200 automotive qualification.

For Space-Constrained Applications:

ECA-2CM331 (Panasonic, obsolete) provides the smallest height at 1.319" (34.60mm) but is obsolete. For active alternatives with reduced height, ESMG161ELL331MMP1S and ESMQ161ELL331MMP1S at 1.457" (37.00mm) are recommended.

All recommended substitutes maintain through-hole radial can packaging with 7.50mm lead spacing and 18.00mm case diameter, ensuring PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V or 250 V rated capacitor in place of the 160 V UVR2C331MHA?

A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for 160 V operation. The capacitor will operate within its voltage margin, which may extend component lifetime. Mechanical dimensions must still match PCB layout constraints.

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

A: Direct equivalents (ESMG161ELL331MMP1S, ESMQ161ELL331MMP1S) match all electrical specifications: 330 µF, 160 V, 2000 Hrs @ 85°C. Upgrade substitutes increase voltage rating or thermal lifetime while maintaining 330 µF capacitance and mechanical form factor. Upgrades provide performance margin but are not required for direct replacement.

Q: Does the height difference between parts affect PCB compatibility?

A: Yes. The original UVR2C331MHA is 1.654" (42.00mm) tall. Chemi-Con direct equivalents are 1.457" (37.00mm), reducing height by approximately 0.2". Verify PCB clearance and component spacing before substitution. Panasonic ECA-2CM331 is 1.319" (34.60mm), requiring additional clearance verification.

Q: Are all substitute parts RoHS compliant?

A: The original UVR2C331MHA is RoHS non-compliant. All recommended active substitutes are ROHS3 compliant, supporting modern manufacturing and environmental standards. Obsolete parts (ECA-2CM331) are ROHS3 compliant but have limited availability.

Q: Which substitute offers the longest operational lifetime?

A: UCY2E331MHD9 (Nichicon) and EKXJ251ELL331MM40S (Chemi-Con) both provide 12000 Hrs @ 105°C, compared to 2000 Hrs @ 85°C for the original part. These are suitable for applications requiring extended thermal endurance.

Q: Can I mix different manufacturers' capacitors in the same circuit?

A: Yes. All listed substitutes maintain identical capacitance (330 µF), tolerance (±20%), and mechanical dimensions (lead spacing 7.50mm, case diameter 18.00mm). Electrical performance differences are minor and do not prevent mixed-manufacturer use in general-purpose applications.

Q: What is the significance of AEC-Q200 qualification on EKXJ251ELL331MM40S?

A: AEC-Q200 is an automotive industry qualification standard. EKXJ251ELL331MM40S meets automotive reliability and performance requirements, making it suitable for automotive and high-reliability applications. Non-qualified parts are acceptable for general-purpose use.

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