UVZ1H331MPD Equivalent & Substitute Parts

Part Overview

The UVZ1H331MPD is a 330 µF, 50 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 This component is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. The UVZ series offers a 2000-hour lifetime rating at 105°C with general-purpose applications. Finding equivalent or substitute parts is necessary for legacy system maintenance, repair operations, and design transitions to active product lines.

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
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height	0.689" (17.50 mm)
Ripple Current @ 120 Hz	410 mA
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UVZ1H331MPD is determined by strict electrical and mechanical parameter matching:

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)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Secondary Compatibility Parameters:

Lead Spacing: 0.197" (5.00 mm) — mechanical fit requirement
Diameter: 0.394" (10.00 mm) — PCB footprint compatibility
Height: 0.689" (17.50 mm) — clearance consideration
Operating Temperature Range: -55°C to 105°C (minimum requirement)
RoHS Compliance: ROHS3 Compliant (regulatory requirement)

Lifetime Consideration: Parts with 2000-hour or greater lifetime ratings at 105°C are functionally equivalent. Extended lifetime ratings (5000 hours) represent performance upgrades without substitution restrictions.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Ripple Current @ 120 Hz	Product Status	Inventory
UVZ1H331MPD	Nichicon	UVZ	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.689" (17.50 mm)	410 mA	Not For New Designs	19237 Pcs
UKA1H331MPD	Nichicon	UKA	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.689" (17.50 mm)	410 mA	Not For New Designs	1100 Pcs
UVY1H331MPD	Nichicon	UVY	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.689" (17.50 mm)	410 mA	Not For New Designs	2314 Pcs
UVY1H331MHD4	Nichicon	UVY	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.689" (17.50 mm)	410 mA	Active	946 Pcs
UVZ1H331MPD1AA	Nichicon	UVZ	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.689" (17.50 mm)	410 mA	Active	1111 Pcs
ECA-1HHG331	Panasonic Electronic Components	NHG-A	330 µF	50 V	±20%	2000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.669" (17.00 mm)	410 mA	Active	7042 Pcs
UPJ1H331MPD	Nichicon	UPJ	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	1.299" (33.00 mm)	995 mA	Not For New Designs	1771 Pcs
UPW1H331MPD	Nichicon	UPW	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.787" (20.00 mm)	669.5 mA	Not For New Designs	7621 Pcs
UPJ1H331MHD6	Nichicon	UPJ	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.650" (16.50 mm)	925 mA	Not For New Designs	675 Pcs
UPM1H331MHD6	Nichicon	UPM	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.669" (17.00 mm)	925 mA	Not For New Designs	1160 Pcs
URZ1H331MHD	Nichicon	URZ	330 µF	50 V	±20%	1000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.551" (14.00 mm)	370 mA	Active	6951 Pcs

Engineering Selection Recommendations

Direct Mechanical & Electrical Equivalents (Same Footprint):

Parts matching the UVZ1H331MPD footprint (0.197" lead spacing, 0.394" diameter, 0.689" height) with identical electrical specifications are:

UVY1H331MHD4 — Active product status, identical parameters, recommended for new designs requiring 2000-hour lifetime
UVZ1H331MPD1AA — Active product status, same UVZ series, direct replacement with extended availability
UKA1H331MPD — Nichicon equivalent, audio-grade variant, 2000-hour lifetime

Cross-Manufacturer Equivalent:

ECA-1HHG331 — Panasonic NHG-A series, Active product status, identical electrical specifications, height variance of 0.020" (0.50 mm) is within typical PCB clearance tolerances

Extended Lifetime Alternatives (Different Footprints):

Parts with 5000-hour lifetime ratings require PCB layout verification due to dimensional changes:

UPW1H331MPD — Same lead spacing (0.197"), increased height to 0.787" (20.00 mm), higher ripple current capability
UPJ1H331MPD — Same lead spacing (0.197"), significantly increased height to 1.299" (33.00 mm), enhanced performance
UPJ1H331MHD6 and UPM1H331MHD6 — Different lead spacing (0.295"), larger diameter (0.630"), require PCB redesign

Lower Lifetime Alternative:

URZ1H331MHD — Active product, 1000-hour lifetime, reduced ripple current (370 mA), compact form factor with different diameter (0.492")

Frequently Asked Questions (FAQ)

Q: Can UVY1H331MHD4 directly replace UVZ1H331MPD without PCB modification?

A: Yes. Both parts share identical lead spacing (0.197"), diameter (0.394"), and height (0.689"). Electrical specifications are equivalent. UVY1H331MHD4 is Active product status, making it suitable for new designs.

Q: What is the difference between 2000-hour and 5000-hour lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation exceeds tolerance limits. 5000-hour parts provide extended service life but typically require larger physical dimensions to accommodate enhanced internal construction.

Q: Can I use ECA-1HHG331 (Panasonic) as a substitute?

A: Yes, with height verification. ECA-1HHG331 has 0.020" (0.50 mm) less height (0.669" vs. 0.689"), which is within standard PCB clearance margins. All electrical parameters match. Panasonic part is Active status.

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

A: These parts use 0.295" (7.50 mm) lead spacing instead of 0.197" (5.00 mm), requiring PCB footprint redesign. The larger spacing accommodates higher ripple current capability (925 mA) and extended 5000-hour lifetime. UPM1H331MHD6 includes AEC-Q200 automotive qualification.

Q: Is URZ1H331MHD suitable for the same applications as UVZ1H331MPD?

A: URZ1H331MHD is Active product but has reduced specifications: 1000-hour lifetime (vs. 2000 hours) and lower ripple current (370 mA vs. 410 mA). It is suitable only for applications with lower thermal stress and ripple current demands. Physical dimensions also differ.

Q: What does "Not For New Designs" status mean?

A: This designation indicates the part has been superseded. While suitable for legacy system repairs and maintenance, new product development should transition to Active status alternatives such as UVY1H331MHD4, UVZ1H331MPD1AA, or ECA-1HHG331.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes meet ROHS3 compliance requirements. Verify REACH status for specific applications: most Nichicon parts are REACH Unaffected; UPM1H331MHD6 is REACH Affected.

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