Equivalent & Substitute Parts for UVR2A331MHD6

Part Overview

The UVR2A331MHD6 is a 330 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is designed for general-purpose applications requiring through-hole mounting. The UVR series is currently active in production. Substitute parts are necessary when the primary part is unavailable, when alternative manufacturers are preferred for supply chain optimization, or when design flexibility permits equivalent electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.197" (5.00mm)
Package Type	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.492" Dia (12.50mm)
Height - Seated (Max)	1.063" (27.00mm)

Substitute Part Grouping Explanation

Substitute parts for the UVR2A331MHD6 are qualified based on strict parametric equivalence across the following criteria:

Capacitance value: 330 µF (exact match required)
Voltage rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime specification: 2000 Hrs @ 85°C (exact match required)
Operating temperature range: -40°C ~ 85°C (exact match required)
Polarization: Polar (exact match required)
Lead spacing: 0.197" (5.00mm) (exact match required)
Package type: Radial, Can (exact match required)
Mounting type: Through Hole (exact match required)
Physical dimensions: 0.492" Dia (12.50mm), Height 1.063" (27.00mm) (exact match required)

All three substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the UVR2A331MHD6.

Parameter Comparison

Parameter	UVR2A331MHD6 (Nichicon)	UVK2A331MHD (Nichicon)	100PK330MEFC12.5X25 (Rubycon)	ECA-2AM331 (Panasonic)
Capacitance	330 µF	330 µF	330 µF	330 µF
Voltage Rating	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Polar	Polar	Polar	Polar
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Size / Dimension	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)
Height - Seated (Max)	1.063" (27.00mm)	1.063" (27.00mm)	1.063" (27.00mm)	1.063" (27.00mm)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three substitute parts are qualified equivalents to the UVR2A331MHD6 based on identical electrical and mechanical parameters. Selection among these alternatives should be based on the following factors:

UVK2A331MHD (Nichicon): This part maintains the same manufacturer as the primary component. However, the UVK series is designated as "Not For New Designs," which may present long-term supply or support considerations for new product development.

100PK330MEFC12.5X25 (Rubycon): This part is designated as "Active" product status and is ROHS3 compliant. It offers the highest inventory availability (2135 pcs) among the substitute options.

ECA-2AM331 (Panasonic): This part is designated as "Active" product status and is ROHS3 compliant. It provides an alternative from a third manufacturer with established supply chain presence.

All substitute parts carry ROHS3 compliance and REACH unaffected status where specified, supporting regulatory requirements for modern applications.

Frequently Asked Questions (FAQ)

Q: Can UVK2A331MHD be used as a direct replacement for UVR2A331MHD6?

A: Yes. Both parts share identical electrical specifications (330 µF, 100 V, ±20% tolerance, 2000 Hrs @ 85°C) and mechanical dimensions (0.492" Dia, 1.063" height, 5.00mm lead spacing). The UVK series designation indicates a different product line within Nichicon, but parametric equivalence is complete. Note that UVK2A331MHD is marked "Not For New Designs."

Q: What is the difference between the Nichicon UVR and UVK series?

A: Both series are aluminum electrolytic capacitors with identical rated specifications for this part number. The series designation reflects internal product line categorization within Nichicon's portfolio. Electrical and mechanical performance are equivalent.

Q: Are the Rubycon and Panasonic parts suitable for high-frequency applications?

A: The ripple current specifications differ slightly among manufacturers. The 100PK330MEFC12.5X25 (Rubycon) is rated at 912 mA @ 10 kHz, while ECA-2AM331 (Panasonic) is rated at 1.19 A @ 10 kHz. Both meet the 2000 Hrs @ 85°C lifetime requirement. Selection should be based on specific ripple current demands in the application circuit.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All parts share identical lead spacing (0.197" / 5.00mm), can diameter (0.492" / 12.50mm), and maximum seated height (1.063" / 27.00mm). PCB layout and mounting hole patterns are directly compatible.

Q: Are there compliance differences between the substitute parts?

A: All substitute parts are ROHS3 compliant and REACH unaffected where specified. The primary part (UVR2A331MHD6) does not specify these certifications in the provided data. The substitute parts provide documented compliance status suitable for regulated applications.

Q: What inventory considerations apply to these substitutes?

A: Current inventory levels are: UVR2A331MHD6 (710 pcs), UVK2A331MHD (969 pcs), 100PK330MEFC12.5X25 (2135 pcs), and ECA-2AM331 (855 pcs). Availability may vary based on supply chain conditions and procurement timing.

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