UVK1J331MPD Equivalent & Substitute Parts

Part Overview

The UVK1J331MPD is a 330 µF, 63 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product line. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Identifying equivalent and substitute parts is necessary due to the product's obsolescence status and potential supply constraints. Alternative components with identical or superior electrical and mechanical characteristics ensure design continuity and long-term availability.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	63 V
Tolerance	±20%
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Operating Temperature Range	-40°C to 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Operating Temperature Range: -40°C to 85°C or wider (equal or superior)
Lifetime @ Temperature: 2000 Hrs @ 85°C or longer (equal or superior)
RoHS Status: ROHS3 Compliant (compliance maintained)

All substitute parts listed meet these criteria. Variations in physical dimensions (diameter and height), ripple current ratings, and ESR values do not disqualify substitution when core electrical parameters remain identical.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Diameter	Height (Max)	Lead Spacing	Operating Temp	Lifetime @ Temp	Product Status	RoHS
UVK1J331MPD	Nichicon	330 µF	63 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Not For New Designs	ROHS3
URS1J331MHD	Nichicon	330 µF	63 V	±20%	0.492" (12.50 mm)	0.650" (16.50 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Active	ROHS3
UVR1J331MPD	Nichicon	330 µF	63 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Not For New Designs	ROHS3
UVR1J331MPD1AA	Nichicon	330 µF	63 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Active	ROHS3
337CKS063M	Cornell Dubilier / Illinois Capacitor	330 µF	63 V	±20%	0.394" (10.00 mm)	0.846" (21.50 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Active	ROHS3
63PX330MEFC10X20	Rubycon	330 µF	63 V	±20%	0.394" (10.00 mm)	0.846" (21.50 mm)	0.197" (5.00 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	Active	ROHS3
ESMG630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	0.394" (10.00 mm)	0.846" (21.50 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Discontinued at DiGi Electronics	ROHS3
ESMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	0.394" (10.00 mm)	0.846" (21.50 mm)	0.197" (5.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	Active	ROHS3
ECA-1JHG331	Panasonic Electronic Components	330 µF	63 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	0.197" (5.00 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	Active	ROHS3
ECA-1JHG331E	Panasonic Electronic Components	330 µF	63 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	0.197" (5.00 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	Active	ROHS3
EKMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	0.394" (10.00 mm)	0.846" (21.50 mm)	0.197" (5.00 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	Active	ROHS3

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical and Mechanical Specifications)

UVR1J331MPD and UVR1J331MPD1AA are direct parametric equivalents to UVK1J331MPD. Both maintain identical capacitance, voltage rating, tolerance, physical dimensions, and thermal characteristics. UVR1J331MPD1AA carries Active product status, making it the preferred choice for new applications requiring Nichicon components.

Active Status Alternatives

URS1J331MHD (Nichicon, Active) provides equivalent electrical performance with dimensional variations in diameter and height. This part remains in active production and offers improved supply availability compared to the Not For New Designs status of the original part.

Multi-Manufacturer Options

337CKS063M (Cornell Dubilier), ESMG630ELL331MJ20S and ESMQ630ELL331MJ20S (Chemi-Con), and 63PX330MEFC10X20 (Rubycon) all meet the core electrical requirements. ESMQ630ELL331MJ20S and 63PX330MEFC10X20 offer extended operating temperature ranges (-55°C to 105°C) and superior lifetime ratings (2000 Hrs @ 105°C), providing enhanced thermal performance for demanding applications.

Recommended Upgrade Path

ECA-1JHG331 and ECA-1JHG331E (Panasonic) represent the optimal upgrade option. Both parts maintain identical physical footprint to the original UVK1J331MPD, feature extended operating temperature range (-55°C to 105°C), and provide 2000 hours lifetime at 105°C. Active product status ensures long-term availability. EKMQ630ELL331MJ20S (Chemi-Con) offers equivalent upgrade characteristics with slightly reduced physical height.

All listed substitutes maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can URS1J331MHD be used as a direct replacement for UVK1J331MPD?

A: URS1J331MHD is electrically equivalent but has different physical dimensions. The diameter increases from 0.394" to 0.492", and height decreases from 0.866" to 0.650". Verify PCB layout clearance before substitution. Lead spacing remains identical at 0.197" (5.00 mm).

Q: What is the difference between UVR1J331MPD and UVR1J331MPD1AA?

A: Both parts are parametrically identical in capacitance, voltage, tolerance, and physical dimensions. The primary distinction is product status: UVR1J331MPD is Not For New Designs, while UVR1J331MPD1AA is Active. For new designs, UVR1J331MPD1AA is the appropriate selection.

Q: Why do some substitute parts have extended temperature ranges?

A: Parts such as ECA-1JHG331, 63PX330MEFC10X20, and EKMQ630ELL331MJ20S feature operating ranges of -55°C to 105°C and lifetime ratings of 2000 hours at 105°C. These specifications represent superior thermal performance compared to the original -40°C to 85°C range and 2000 hours at 85°C. Extended thermal capability does not affect compatibility in applications operating within the original temperature envelope.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original UVK1J331MPD.

Q: What is the significance of physical dimension variations?

A: Diameter and height variations do not affect electrical substitution eligibility when capacitance, voltage, tolerance, lead spacing, and mounting type remain identical. However, PCB layout must accommodate the physical footprint of the selected substitute. Verify clearance around the component location before design implementation.

Q: Which substitute offers the best long-term availability?

A: Parts with Active product status—UVR1J331MPD1AA, URS1J331MHD, 337CKS063M, 63PX330MEFC10X20, ESMQ630ELL331MJ20S, ECA-1JHG331, ECA-1JHG331E, and EKMQ630ELL331MJ20S—are in current production. ECA-1JHG331 and ECA-1JHG331E (Panasonic) offer the highest inventory levels and represent the most reliable long-term sourcing option.

Q: Can ESMG630ELL331MJ20S be used despite its Discontinued status?

A: ESMG630ELL331MJ20S is listed as Discontinued at DiGi Electronics but remains electrically and mechanically equivalent. Current inventory availability is 3251 units. Substitution is technically valid; however, future procurement may be constrained. Active alternatives such as ESMQ630ELL331MJ20S (same manufacturer, same specifications) are recommended for new designs.

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