UVR1J331MPD Equivalent & Substitute Parts

Part Overview

The UVR1J331MPD is a 330 µF, 63 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 discontinued status for new applications, equivalent and substitute parts from active manufacturers are available to maintain design continuity and ensure supply chain reliability.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	63 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.197" (5.00mm)
Case Diameter	0.394" Dia (10.00mm)
Height	0.866" (22.00mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UVR1J331MPD is determined by strict equivalence in 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)
Lead Spacing: 0.197" (5.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Substitute parts are grouped into three categories:

Direct Equivalents: Parts with identical electrical and mechanical specifications, differing only in manufacturer or series designation. These include URS1J331MHD (Nichicon), 337CKS063M (Cornell Dubilier), 63PX330MEFC10X20 (Rubycon), ESMG630ELL331MJ20S (Chemi-Con), and ESMQ630ELL331MJ20S (Chemi-Con).

Parametric Equivalents: Parts with matching core electrical parameters but minor variations in physical dimensions or performance characteristics. UVR1J331MPD1AA (Nichicon) falls into this category.

Upgrade Options: Parts with enhanced specifications, including extended temperature ranges, longer operational lifetimes, or improved ripple current ratings. These include ECA-1JHG331 (Panasonic), ECA-1JHG331E (Panasonic), EKMQ630ELL331MJ20S (Chemi-Con), and MAL214268331E3 (Vishay).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Case Dia	Height	Product Status
UVR1J331MPD	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	0.866" (22.00mm)	Not For New Designs
URS1J331MHD	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50mm)	0.650" (16.50mm)	Active
UVR1J331MPD1AA	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	0.866" (22.00mm)	Active
337CKS063M	Cornell Dubilier / Illinois Capacitor	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	0.846" (21.50mm)	Active
63PX330MEFC10X20	Rubycon	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394" (10.00mm)	0.846" (21.50mm)	Active
ESMG630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	0.846" (21.50mm)	Discontinued at DiGi Electronics
ESMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00mm)	0.846" (21.50mm)	Active
ECA-1JHG331	Panasonic Electronic Components	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	Active
ECA-1JHG331E	Panasonic Electronic Components	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	Active
EKMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394" (10.00mm)	0.846" (21.50mm)	Active
MAL214268331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	63 V	±20%	2500 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00mm)	0.866" (22.00mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

UVR1J331MPD1AA is the primary direct replacement, maintaining identical physical dimensions (0.394" diameter, 0.866" height) and electrical specifications while offering Active product status from Nichicon. This part is ROHS3 compliant and maintains the same 2000-hour lifetime at 85°C.

For Active Inventory with Minor Dimensional Variation:

337CKS063M (Cornell Dubilier), ESMG630ELL331MJ20S (Chemi-Con), and ESMQ630ELL331MJ20S (Chemi-Con) are all Active products with identical electrical parameters. These parts feature slightly reduced height (0.846" versus 0.866"), which accommodates most PCB layouts while maintaining lead spacing and case diameter compatibility. All are ROHS3 compliant.

For Enhanced Performance (Upgrade Options):

ECA-1JHG331 and ECA-1JHG331E (Panasonic) offer extended operating temperature range (-55°C to 105°C) and 2000-hour lifetime at 105°C, providing improved thermal performance. EKMQ630ELL331MJ20S (Chemi-Con) and MAL214268331E3 (Vishay) provide similar thermal enhancements, with MAL214268331E3 offering extended 2500-hour lifetime at 105°C. All upgrade options maintain ROHS3 compliance and are currently Active.

Avoid:

URS1J331MHD exhibits significant dimensional variation (0.492" diameter, 0.650" height) and is not suitable for direct PCB replacement despite electrical equivalence. ESMG630ELL331MJ20S is discontinued at DiGi Electronics and should not be selected for new procurement.

Frequently Asked Questions (FAQ)

Q: Can UVR1J331MPD1AA be used as a direct replacement for UVR1J331MPD?

A: Yes. UVR1J331MPD1AA is a parametric equivalent with identical capacitance (330 µF), voltage rating (63 V), tolerance (±20%), physical dimensions (0.394" diameter, 0.866" height), and lead spacing (5.00mm). The primary advantage is Active product status versus Not For New Designs.

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

A: Direct equivalents maintain the original 2000-hour lifetime at 85°C and -40°C to 85°C operating range. Upgrade options extend the operating temperature range to -55°C to 105°C and provide 2000-hour or longer lifetimes at 105°C, offering improved thermal stability for demanding applications.

Q: Are there dimensional constraints when substituting parts?

A: Yes. The original UVR1J331MPD specifies 0.394" case diameter and 0.866" height. Parts like 337CKS063M and ESMQ630ELL331MJ20S have identical diameter but reduced height (0.846"), which is acceptable for most applications. URS1J331MHD has significantly different dimensions (0.492" diameter, 0.650" height) and is not suitable for direct PCB replacement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the original UVR1J331MPD compliance status.

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

A: MAL214268331E3 (Vishay) provides the longest operational lifetime at 2500 hours at 105°C, combined with extended operating temperature range (-40°C to 105°C). This part is suitable for applications requiring maximum thermal endurance.

Q: Can URS1J331MHD be used despite dimensional differences?

A: URS1J331MHD is electrically equivalent but has substantially different physical dimensions. It is not recommended for direct PCB replacement without layout redesign, as the larger diameter (0.492" versus 0.394") and reduced height (0.650" versus 0.866") may cause mechanical interference or require board modifications.

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