UVR1J331MPA Equivalent & Substitute Parts

Part Overview

The UVR1J331MPA 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 designed for general-purpose applications requiring polar capacitive energy storage. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

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
Lead Spacing	0.197" (5.00mm)
Package Diameter	0.394" Dia (10.00mm)
Height - Seated (Max)	0.866" (22.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
Polarization	Polar
Applications	General Purpose

Substitute Part Grouping Explanation

Substitution for the UVR1J331MPA is determined by strict equivalence across the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00mm) (exact match required)
Package Diameter: 0.394" Dia (10.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Polarization: Polar (exact match required)

Substitute parts are grouped into three categories based on product status and thermal performance:

Direct Equivalents maintain identical electrical and mechanical specifications with variations only in product status or packaging format.

Parametric Equivalents meet all core electrical and mechanical requirements but may have enhanced thermal performance or different ripple current ratings at specific frequencies.

Upgrade Parts exceed the original specifications in thermal lifetime or operating temperature range while maintaining full mechanical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Package Dia	Height (Max)	Product Status	RoHS Status
UVR1J331MPA	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Obsolete	RoHS non-compliant
UVR1J331MPD	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Not For New Designs	ROHS3 Compliant
UVR1J331MPD1AA	Nichicon	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Active	Not specified
337CKS063M	Cornell Dubilier / Illinois Capacitor	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
63PX330MEFC10X20	Rubycon	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00mm)	0.394" (10.00mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
ESMG630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.846" (21.50mm)	Discontinued at DiGi Electronics	ROHS3 Compliant
ESMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.394" (10.00mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
ECA-1JHG331	Panasonic Electronic Components	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Active	ROHS3 Compliant
ECA-1JHG331E	Panasonic Electronic Components	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Active	ROHS3 Compliant
EKMQ630ELL331MJ20S	Chemi-Con	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.197" (5.00mm)	0.394" (10.00mm)	0.846" (21.50mm)	Active	ROHS3 Compliant
MAL214268331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	63 V	±20%	2500 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00mm)	0.394" (10.00mm)	0.866" (22.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Existing Designs (Direct Replacement):

UVR1J331MPD and UVR1J331MPD1AA are direct Nichicon equivalents maintaining identical electrical and mechanical specifications. UVR1J331MPD1AA is preferred as it carries Active product status. Both are ROHS3 compliant, addressing regulatory requirements of the obsolete UVR1J331MPA.

For New Designs (Upgrade Selection):

ECA-1JHG331, ECA-1JHG331E, EKMQ630ELL331MJ20S, and MAL214268331E3 are recommended for new implementations. These parts provide extended thermal lifetime (2000 Hrs @ 105°C or 2500 Hrs @ 105°C) and expanded operating temperature ranges (-55°C ~ 105°C or -40°C ~ 105°C), ensuring enhanced reliability in demanding thermal environments. All carry Active product status and ROHS3 compliance.

For Thermal-Constrained Applications:

MAL214268331E3 offers the highest thermal rating at 2500 Hrs @ 105°C with operating range -40°C ~ 105°C, providing extended service life in elevated temperature conditions.

For Space-Constrained PCBs:

337CKS063M, 63PX330MEFC10X20, ESMG630ELL331MJ20S, and ESMQ630ELL331MJ20S feature reduced height (0.846" vs. 0.866"), accommodating tighter vertical clearance requirements while maintaining full electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can UVR1J331MPD be used as a direct replacement for UVR1J331MPA?

A: Yes. UVR1J331MPD is a direct Nichicon equivalent with identical capacitance (330 µF), voltage rating (63 V), tolerance (±20%), thermal lifetime (2000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), and mechanical dimensions. The primary difference is product status (Not For New Designs) and RoHS3 compliance.

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

A: Direct equivalents maintain the original thermal specifications (2000 Hrs @ 85°C, -40°C ~ 85°C). Upgrade parts extend thermal lifetime to 2000 Hrs @ 105°C or 2500 Hrs @ 105°C and expand operating temperature ranges to -55°C ~ 105°C or -40°C ~ 105°C, providing enhanced reliability in higher temperature environments.

Q: Are all substitute parts mechanically compatible with the original UVR1J331MPA footprint?

A: All substitute parts maintain the required lead spacing (0.197" / 5.00mm) and package diameter (0.394" / 10.00mm). Height variations exist: UVR1J331MPA, UVR1J331MPD, UVR1J331MPD1AA, ECA-1JHG331, ECA-1JHG331E, and MAL214268331E3 are 0.866" (22.00mm); 337CKS063M, 63PX330MEFC10X20, ESMG630ELL331MJ20S, ESMQ630ELL331MJ20S, and EKMQ630ELL331MJ20S are 0.846" (21.50mm). Verify PCB clearance requirements before selection.

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

A: MAL214268331E3 provides the highest thermal rating at 2500 Hrs @ 105°C with operating range -40°C ~ 105°C, delivering extended service life in elevated temperature applications.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed carry ROHS3 Compliant status, addressing regulatory requirements. The original UVR1J331MPA is RoHS non-compliant.

Q: Can substitute parts with different ripple current ratings be used interchangeably?

A: Ripple current ratings vary across manufacturers and frequency conditions. Selection must account for actual circuit ripple current demands. Parts with equal or higher ripple current ratings at the operating frequency are acceptable substitutes.

Q: What is the inventory status of substitute parts?

A: All substitute parts maintain active inventory. UVR1J331MPD1AA (880 Pcs), ECA-1JHG331 (72,555 Pcs), and ESMQ630ELL331MJ20S (722 Pcs) offer immediate availability for production requirements.

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