UKW1J331MPD1TD Equivalent & Substitute Parts

Part Overview

The UKW1J331MPD1TD 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 This component is classified as "Not For New Designs," indicating it has been superseded in Nichicon's product portfolio. Finding equivalent or substitute parts is necessary for maintenance, repair, and legacy system support where original stock is unavailable or depleted.

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" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole, Radial
Package	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UKW1J331MPD1TD is determined by strict equivalence across the following parameters:

Capacitance Value: 330 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Physical Dimensions: Lead spacing 5.00 mm, case diameter 10.00 mm, height 22.00 mm (exact match required for through-hole PCB compatibility)
Mounting Type: Through Hole, Radial configuration (exact match required)
Package Type: Radial, Can (exact match required)
Polarization: Polar (exact match required)
RoHS Compliance: ROHS3 Compliant (required for regulatory compliance)

Substitute parts are grouped into three categories:

Upgrade Substitutes (UVK1J331MPD1TD, UVR1J331MPD1TD, ECA-1JHG331B, ECA-1JM331B): Parts with identical or superior electrical specifications and active product status.
Parametric Equivalent (UFW1J331MPD1TD): Part with matching electrical and mechanical specifications from the same manufacturer family.
Direct Equivalent (860010775019): Cross-manufacturer equivalent with active product status.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height (Max)	Ripple Current @ 120 Hz	Ripple Current @ 10 kHz	Product Status	Inventory
UKW1J331MPD1TD	Nichicon	UKW	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	22.00 mm	650 mA	975 mA	Not For New Designs	2493 Pcs
UVK1J331MPD1TD	Nichicon	UVK	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	22.00 mm	710 mA	1.065 A	Not For New Designs	2284 Pcs
UVR1J331MPD1TD	Nichicon	UVR	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	22.00 mm	710 mA	816.5 mA	Not For New Designs	6444 Pcs
UFW1J331MPD1TD	Nichicon	UFW	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	22.00 mm	650 mA	975 mA	Not For New Designs	10763 Pcs
860010775019	Würth Elektronik	WCAP-ATG8	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	21.50 mm	759 mA	1.04742 A @ 100 kHz	Active	1028 Pcs
ECA-1JHG331B	Panasonic Electronic Components	NHG-A	330 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	5.00 mm	10.00 mm	22.00 mm	510 mA	765 mA @ 100 kHz	Active	1368 Pcs
ECA-1JM331B	Panasonic Electronic Components	M-A	330 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	5.00 mm	10.00 mm	22.00 mm	550 mA	935 mA @ 10 kHz	Active	1235 Pcs

Engineering Selection Recommendations

For Active Product Status Priority: Select 860010775019 (Würth Elektronik WCAP-ATG8), ECA-1JHG331B (Panasonic NHG-A), or ECA-1JM331B (Panasonic M-A). All three are classified as Active products and maintain full ROHS3 compliance, ensuring long-term availability and regulatory support.

For Nichicon Product Family Continuity: UFW1J331MPD1TD offers the highest inventory availability (10763 Pcs) within the Nichicon portfolio while maintaining identical electrical and mechanical specifications to the UKW1J331MPD1TD. UVR1J331MPD1TD provides the second-highest inventory (6444 Pcs) with comparable performance characteristics.

For Enhanced Temperature Performance: ECA-1JHG331B operates across an extended temperature range (-55°C ~ 105°C) with rated lifetime of 2000 Hrs @ 105°C, providing superior thermal margin compared to the original part's -40°C ~ 85°C specification.

For Mechanical Fit Verification: All substitute parts maintain the required 5.00 mm lead spacing and 10.00 mm case diameter. The Würth Elektronik 860010775019 has a seated height of 21.50 mm versus the standard 22.00 mm; verify PCB clearance in height-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for UKW1J331MPD1TD?

A: Yes, all listed substitute parts are electrically and mechanically compatible. They share identical capacitance (330 µF), voltage rating (63 V), tolerance (±20%), lead spacing (5.00 mm), case diameter (10.00 mm), and mounting type (through-hole radial). Verify PCB layout clearance for the Würth Elektronik part, which has a 0.50 mm shorter seated height.

Q: What is the difference between "Upgrade," "Parametric Equivalent," and "Direct" substitutes?

A: Upgrade substitutes (UVK1J331MPD1TD, UVR1J331MPD1TD, ECA-1JHG331B, ECA-1JM331B) offer active product status or enhanced specifications. Parametric equivalents (UFW1J331MPD1TD) match all electrical and mechanical parameters from the same manufacturer. Direct equivalents (860010775019) are cross-manufacturer parts with active status and full compatibility.

Q: Why are some substitute parts marked "Not For New Designs"?

A: Nichicon UKW, UVK, UVR, and UFW series are legacy product lines. While fully functional and available, they are not recommended for new circuit designs. For new applications, select active-status parts: 860010775019, ECA-1JHG331B, or ECA-1JM331B.

Q: Does the ripple current rating affect substitution compatibility?

A: Ripple current specifications indicate the maximum AC current the capacitor can handle at specified frequencies. All substitute parts meet or exceed the original UKW1J331MPD1TD ripple current ratings (650 mA @ 120 Hz, 975 mA @ 10 kHz), ensuring safe operation in existing circuit designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, meeting regulatory requirements for hazardous substance restrictions.

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

A: The Würth Elektronik 860010775019 and Panasonic ECA-1JHG331B and ECA-1JM331B are classified as Active products, indicating ongoing manufacturing and distribution support. These are recommended for applications requiring extended component availability.

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