UVZ1V331MPH Equivalent & Substitute Parts

Part Overview

The UVZ1V331MPH is a 330 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and legacy system support. The part operates across a temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance performance in through-hole configurations.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Ripple Current @ 120 Hz	350 mA
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height (Seated Max)	0.492" (12.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the UVZ1V331MPH is determined by strict equivalence across the following critical parameters: capacitance value (330 µF), voltage rating (35 V), tolerance (±20%), polarization (polar), mounting type (through hole), and package configuration (radial, can). Lead spacing (5.00 mm) and physical dimensions must remain compatible with existing PCB layouts. Lifetime rating and operating temperature range define performance tier classifications. Parts are grouped into three categories: direct manufacturer equivalents, upgrade alternatives, and similar cross-manufacturer options.

Direct Manufacturer Equivalent: UVZ1V331MPD maintains identical electrical specifications and physical dimensions as the main part, differing only in packaging format and product status.

Upgrade Alternative: UKT1V331MPD provides the same capacitance, voltage, and physical footprint but with reduced lifetime (1000 Hrs @ 105°C) and different application focus (audio).

Similar Cross-Manufacturer Options: ECA-1VHG331 (Panasonic) and SEK331M035ST (Cornell Dubilier) match all critical electrical parameters and physical dimensions, with minor height variations and different ESR specifications.

Parameter Comparison

Parameter	UVZ1V331MPH (Main)	UVZ1V331MPD (Direct)	UKT1V331MPD (Upgrade)	ECA-1VHG331 (Panasonic)	SEK331M035ST (CDE)
Manufacturer	Nichicon	Nichicon	Nichicon	Panasonic	Cornell Dubilier
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	35 V	35 V	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	1000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Ripple Current @ 120 Hz	350 mA	350 mA	350 mA	350 mA	350 mA
Lead Spacing	5.00 mm	5.00 mm	5.00 mm	5.00 mm	5.00 mm
Diameter	10.00 mm	10.00 mm	10.00 mm	10.00 mm	10.00 mm
Height (Seated Max)	12.50 mm	12.50 mm	12.50 mm	14.60 mm	16.00 mm
Product Status	Obsolete	Not For New Designs	Not For New Designs	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

UVZ1V331MPD (Direct Manufacturer Equivalent): This Nichicon part provides identical electrical and mechanical specifications to the main part. It is ROHS3 compliant and maintains the same 2000-hour lifetime rating. Selection is appropriate for direct replacement in existing designs where Nichicon sourcing is preferred and compliance requirements have been updated.

UKT1V331MPD (Upgrade Alternative): This Nichicon option shares the same physical footprint and electrical parameters but specifies a reduced lifetime of 1000 hours at 105°C. It is ROHS3 compliant and designated for audio applications. Selection is suitable only when the reduced lifetime meets application requirements and audio-grade performance is acceptable.

ECA-1VHG331 (Panasonic): This part maintains full electrical equivalence with 2000-hour lifetime and ROHS3 compliance. Height is 1.00 mm greater (14.60 mm vs. 12.50 mm), requiring PCB layout verification for clearance. Active product status ensures ongoing availability. Selection is appropriate for applications where cross-manufacturer sourcing is acceptable and height clearance is confirmed.

SEK331M035ST (Cornell Dubilier): This part provides electrical equivalence with 2000-hour lifetime and ROHS3 compliance. Height is 4.60 mm greater (16.00 mm vs. 12.50 mm), requiring significant PCB layout verification. ESR is specified at 560 mOhm. Active product status ensures availability. Selection requires confirmation that increased height does not conflict with PCB design constraints.

Frequently Asked Questions (FAQ)

Q: Can UVZ1V331MPD be used as a direct replacement for UVZ1V331MPH?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (35 V), tolerance (±20%), lifetime (2000 Hrs @ 105°C), and physical dimensions. The primary difference is product status and RoHS compliance. UVZ1V331MPD is ROHS3 compliant, making it suitable for replacement in systems where compliance requirements apply.

Q: What is the impact of using UKT1V331MPD instead of the original part?

A: UKT1V331MPD maintains the same physical footprint and electrical parameters but specifies a reduced lifetime of 1000 hours at 105°C compared to 2000 hours for the original. This part is designated for audio applications. Selection is valid only when the reduced lifetime meets application requirements and audio-grade performance is acceptable.

Q: Are there height clearance concerns with cross-manufacturer substitutes?

A: Yes. ECA-1VHG331 (Panasonic) has a maximum seated height of 14.60 mm, which is 1.00 mm taller than the original 12.50 mm. SEK331M035ST (Cornell Dubilier) has a maximum seated height of 16.00 mm, which is 4.60 mm taller. PCB layout verification is required to confirm clearance before selection.

Q: Which substitute parts are actively manufactured?

A: ECA-1VHG331 (Panasonic) and SEK331M035ST (Cornell Dubilier) are both classified as active products. UVZ1V331MPD and UKT1V331MPD are classified as "Not For New Designs," indicating limited future availability.

Q: Do all substitute parts meet RoHS compliance?

A: UVZ1V331MPD, UKT1V331MPD, ECA-1VHG331, and SEK331M035ST are all ROHS3 compliant. The original UVZ1V331MPH is RoHS non-compliant.

Q: What is the difference in ripple current specifications?

A: All parts specify 350 mA ripple current at 120 Hz. ECA-1VHG331 additionally specifies 525 mA ripple current at 100 kHz, providing higher frequency performance data.

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