UVK1H331MPD Equivalent & Substitute Parts

Part Overview

The UVK1H331MPD is a 330 µF, 50 V aluminum electrolytic capacitor in radial can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary to support existing designs, facilitate procurement from alternative sources, and enable migration to active product lines with improved performance characteristics or extended operational temperature ranges.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Polarization	Polar
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence in the following parameters:

Capacitance value: 330 µF (exact match required)
Voltage rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Package type: Radial, Can (exact match required)
Lead spacing: 0.197" (5.00 mm) (exact match required)
Mounting type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Substitute parts are grouped into the following categories based on additional performance characteristics:

Parametric Equivalents: Parts matching all core electrical and mechanical parameters with identical physical dimensions (0.394" diameter, 0.689" height maximum).

Similar Equivalents: Parts matching all core parameters but with different physical dimensions (0.492" diameter, 0.551" height maximum), requiring PCB layout verification.

Direct Equivalents from Alternative Manufacturers: Parts from different manufacturers (Cornell Dubilier, Rubycon, EPCOS-TDK, Panasonic) matching all core parameters with identical or near-identical physical dimensions.

Upgraded Alternatives: Parts with extended operating temperature ranges (-55°C to 105°C vs. -40°C to 85°C) or improved lifetime ratings (2000 Hrs @ 105°C vs. 2000 Hrs @ 85°C), suitable for applications requiring enhanced thermal performance.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp.	Diameter	Height (Max)	Lead Spacing	Product Status	Inventory
UVK1H331MPD	Nichicon	UVK	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394"	0.689"	0.197"	Not For New Designs	1083 Pcs
UKA1H331MPD	Nichicon	UKA	330 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394"	0.689"	0.197"	Not For New Designs	1100 Pcs
URS1H331MHD	Nichicon	URS	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492"	0.551"	0.197"	Active	1000200 Pcs
UVR1H331MPD	Nichicon	UVR	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394"	0.689"	0.197"	Not For New Designs	14329 Pcs
UVR1H331MPD1CV	Nichicon	UVR	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394"	0.689"	0.197"	Active	752 Pcs
337CKE050M	Cornell Dubilier / Illinois Capacitor	CKE	330 µF	50 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.394"	0.689"	0.197"	Active	15063 Pcs
50PX330MEFC10X16	Rubycon	PX	330 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394"	0.689"	0.197"	Active	3828 Pcs
B41821A6337M000	EPCOS - TDK Electronics	B41821	330 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.394"	0.669"	0.197"	Active	957 Pcs
B41851A6337M000	EPCOS - TDK Electronics	B41851	330 µF	50 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.394"	0.669"	0.197"	Active	730 Pcs
ECA-1HHG331	Panasonic Electronic Components	NHG-A	330 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394"	0.669"	0.197"	Active	7042 Pcs
EEU-HD1H331	Panasonic Electronic Components	HD	330 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.394"	0.689"	0.197"	Active	1400 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Thermal Performance)

UVR1H331MPD1CV is the recommended direct replacement. This part maintains identical electrical specifications (330 µF, 50 V, ±20%), physical dimensions (0.394" diameter, 0.689" height), and thermal characteristics (2000 Hrs @ 85°C, -40°C to 85°C operating range) as the UVK1H331MPD. The UVR1H331MPD1CV carries Active product status, ensuring long-term availability and supply chain stability.

For Enhanced Thermal Performance

When applications require extended operating temperature ranges or improved lifetime ratings, the following upgrades are available:

UKA1H331MPD (Nichicon): Extends operating range to -55°C to 105°C with 2000 Hrs @ 105°C lifetime. Maintains identical physical dimensions.
337CKE050M (Cornell Dubilier): Active status with 2000 Hrs @ 105°C lifetime and -40°C to 105°C operating range. Identical physical dimensions.
50PX330MEFC10X16 (Rubycon): Active status with extended temperature range (-55°C to 105°C) and 2000 Hrs @ 105°C lifetime.
B41851A6337M000 (EPCOS-TDK): Active status with 2000 Hrs @ 105°C lifetime and -40°C to 105°C operating range.
ECA-1HHG331 (Panasonic): Active status with extended temperature range (-55°C to 105°C) and 2000 Hrs @ 105°C lifetime.
EEU-HD1H331 (Panasonic): Active status with extended temperature range (-55°C to 105°C) and 2000 Hrs @ 105°C lifetime. Maintains identical physical dimensions (0.394" diameter, 0.689" height).

For PCB Layout Flexibility

URS1H331MHD offers an alternative physical footprint (0.492" diameter, 0.551" height) while maintaining identical electrical specifications and thermal characteristics. This part carries Active product status and has the highest inventory availability. PCB layout verification is required before substitution.

Compliance Considerations

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance profile of the UVK1H331MPD.

Frequently Asked Questions (FAQ)

Q: Can I substitute UVK1H331MPD with any 330 µF, 50 V capacitor?

A: No. Substitution requires exact matching of capacitance (330 µF), voltage rating (50 V), tolerance (±20%), package type (Radial, Can), lead spacing (0.197" / 5.00 mm), and mounting type (Through Hole). Physical dimensions must also be verified for PCB compatibility.

Q: What is the difference between parametric equivalents and similar equivalents?

A: Parametric equivalents match all electrical and mechanical specifications with identical physical dimensions, enabling direct PCB substitution. Similar equivalents match all electrical specifications but have different physical dimensions (different diameter or height), requiring PCB layout verification before use.

Q: Why would I choose an upgraded alternative with extended temperature range?

A: Upgraded alternatives with operating ranges of -55°C to 105°C and 2000 Hrs @ 105°C lifetime provide enhanced reliability in applications subject to higher ambient temperatures or thermal cycling. These parts are suitable for industrial, automotive, or harsh environment applications.

Q: Is UVR1H331MPD1CV a direct replacement for UVK1H331MPD?

A: Yes. UVR1H331MPD1CV matches all electrical specifications, physical dimensions, and thermal characteristics of UVK1H331MPD. The primary advantage is Active product status, ensuring continued availability and supply chain support.

Q: Can I use URS1H331MHD as a substitute if my PCB has space constraints?

A: URS1H331MHD has a larger diameter (0.492" vs. 0.394") and shorter height (0.551" vs. 0.689"). PCB layout verification is mandatory. If the footprint does not accommodate the larger diameter, this part cannot be used.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant and REACH unaffected, matching the compliance profile of the UVK1H331MPD.

Q: What is the advantage of choosing a Panasonic or EPCOS substitute over Nichicon?

A: Alternative manufacturers provide supply chain diversification and may offer improved availability. EEU-HD1H331 and ECA-1HHG331 maintain identical physical dimensions while offering Active product status and extended thermal performance (2000 Hrs @ 105°C, -55°C to 105°C operating range).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message