Nichicon UVY1H331MPD 330µF 50V Radial Aluminum Electrolytic Capacitor

Part Overview

The Nichicon UVY1H331MPD is a 330µF 50V radial aluminum electrolytic capacitor rated for 2000 hours at 105°C. This component is classified as "Not For New Designs," indicating it has been superseded in Nichicon's product portfolio. Finding equivalent and substitute parts is necessary for legacy system maintenance, repair operations, and applications where design flexibility permits component selection from alternative series or manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Lead Spacing	0.197" (5.00mm)
Diameter	0.394" (10.00mm)
Height	0.689" (17.50mm)
Mounting Type	Through Hole
Package	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across electrical and mechanical specifications. The following criteria establish valid substitution categories:

Primary Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.197" (5.00mm) (exact match required for PCB compatibility)
Diameter: 0.394" (10.00mm) (exact match required for mechanical fit)
Height: 0.689" (17.50mm) (exact match required for clearance)
Mounting Type: Through Hole (exact match required)
Package: Radial, Can (exact match required)

Secondary Consideration:

Lifetime @ 105°C: Parts with 2000 hours or greater are acceptable substitutes
Ripple Current Ratings: Higher or equal ratings ensure thermal performance compatibility
Impedance: Lower impedance values indicate improved high-frequency performance

Substitutes are grouped into three categories: Upgrade (enhanced lifetime), Similar (comparable lifetime with variations), and Parametric Equivalent (identical electrical and mechanical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Ripple Current @ 120Hz	Ripple Current @ 10kHz	Product Status	Inventory
UVY1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	615 mA	Not For New Designs	2314 Pcs
UKA1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	—	Not For New Designs	1100 Pcs
UPJ1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.650" (16.50mm)	925 mA	1.21 A	Not For New Designs	675 Pcs
UPJ1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.299" (33.00mm)	995 mA	1.3 A	Not For New Designs	1771 Pcs
UPM1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.669" (17.00mm)	925 mA	1.21 A	Not For New Designs	1160 Pcs
UPW1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.787" (20.00mm)	669.5 mA	1.03 A	Not For New Designs	7621 Pcs
URZ1H331MHD	Nichicon	330 µF	50 V	±20%	1000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.551" (14.00mm)	370 mA	555 mA	Active	6951 Pcs
UVY1H331MHD4	Nichicon	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	615 mA	Active	946 Pcs
UVZ1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	—	Not For New Designs	19237 Pcs
UVZ1H331MPD1AA	Nichicon	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	615 mA	Active	1111 Pcs
EKMG500ELL331MJ16S	Chemi-Con	330 µF	50 V	±20%	1000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.689" (17.50mm)	410 mA	615 mA	Active	7004 Pcs

Engineering Selection Recommendations

Direct Mechanical and Electrical Substitutes (Identical Footprint and Specifications):

UVY1H331MHD4 and UVZ1H331MPD1AA are parametric equivalents with identical lead spacing (0.197"), diameter (0.394"), and height (0.689"). Both maintain 2000-hour lifetime at 105°C and ±20% tolerance. UVY1H331MHD4 carries Active product status, making it the preferred choice for ongoing availability. UVZ1H331MPD1AA also carries Active status and is available in higher quantity (1111 Pcs).

Nichicon Series Alternatives (Same Footprint, Enhanced Lifetime):

UPW1H331MPD provides 5000-hour lifetime at 105°C while maintaining identical lead spacing and diameter. Height increases to 0.787" (20.00mm), requiring PCB clearance verification. This part carries the highest inventory (7621 Pcs) and is suitable where vertical space permits.

Cross-Manufacturer Substitute (Chemi-Con):

EKMG500ELL331MJ16S from Chemi-Con matches all mechanical dimensions and electrical specifications of the original part, with 1000-hour lifetime at 105°C. This part carries Active status and provides cross-manufacturer redundancy.

Not Recommended for Direct Substitution:

URZ1H331MHD exhibits reduced ripple current ratings (370 mA @ 120 Hz versus 410 mA) and shorter lifetime (1000 Hrs), making it unsuitable for equivalent performance. UPJ1H331MHD6 and UPM1H331MHD6 feature different lead spacing (0.295") and larger diameter (0.630"), requiring PCB redesign. UPJ1H331MPD has excessive height (1.299"), creating clearance conflicts.

Frequently Asked Questions (FAQ)

Q: Can UVY1H331MHD4 be used as a direct replacement for UVY1H331MPD?

A: Yes. Both parts share identical electrical specifications (330µF, 50V, ±20%, 2000 Hrs @ 105°C) and mechanical dimensions (lead spacing 0.197", diameter 0.394", height 0.689"). UVY1H331MHD4 carries Active product status, ensuring continued availability.

Q: What is the difference between UVZ1H331MPD and UVZ1H331MPD1AA?

A: Both parts are electrically and mechanically identical (330µF, 50V, 2000 Hrs @ 105°C, identical footprint). UVZ1H331MPD1AA carries Active product status, while UVZ1H331MPD is Not For New Designs. For new applications, UVZ1H331MPD1AA is preferred.

Q: Can UPW1H331MPD replace UVY1H331MPD in existing designs?

A: Electrical substitution is valid (330µF, 50V, ±20%, 5000 Hrs @ 105°C). However, height increases from 0.689" to 0.787", requiring verification of available vertical clearance on the PCB. Lead spacing and diameter remain identical.

Q: Why do UPJ1H331MHD6 and UPM1H331MHD6 have different lead spacing?

A: These parts belong to different Nichicon series optimized for different applications. UPJ1H331MHD6 uses 0.295" lead spacing (7.50mm) and UPM1H331MHD6 uses the same spacing. Both require PCB redesign and cannot be used as direct substitutes without layout modification.

Q: Is EKMG500ELL331MJ16S from Chemi-Con compatible with the original Nichicon part?

A: Yes, for mechanical and electrical compatibility. EKMG500ELL331MJ16S matches all critical parameters: 330µF, 50V, ±20% tolerance, identical lead spacing (0.197"), diameter (0.394"), and height (0.689"). Lifetime is 1000 hours at 105°C, lower than the original 2000 hours. This part carries Active status.

Q: What is the significance of "Not For New Designs" status?

A: This designation indicates the part has been superseded in the manufacturer's portfolio. While existing inventory remains available for legacy system support and repair, Nichicon recommends using Active-status alternatives for new designs. Active-status equivalents include UVY1H331MHD4, UVZ1H331MPD1AA, URZ1H331MHD, and EKMG500ELL331MJ16S.

Q: Can I use URZ1H331MHD as a substitute?

A: Mechanical compatibility exists (identical lead spacing, diameter, and height). However, electrical performance is reduced: ripple current at 120 Hz drops from 410 mA to 370 mA, and lifetime is only 1000 hours at 105°C versus 2000 hours. This part is suitable only for applications with lower thermal or ripple current demands.

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