UVZ1H331MPH Equivalent & Substitute Parts

Part Overview

The UVZ1H331MPH is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making direct replacement necessary for ongoing production and maintenance applications. The UVZ series has been superseded by newer product lines while maintaining identical electrical and mechanical specifications. Equivalent and substitute parts are available from Nichicon and other manufacturers with matching or superior performance characteristics.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C to 105°C
Ripple Current @ 120 Hz	410 mA
Lead Spacing	0.197" (5.00 mm)
Package Diameter	0.394" (10.00 mm)
Package Height	0.689" (17.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the UVZ1H331MPH is determined by strict equivalence across the following critical parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Package Diameter: 0.394" (10.00 mm) (exact match required)
Package Height: 0.689" (17.50 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -55°C to 105°C (exact match required)
Ripple Current @ 120 Hz: 410 mA minimum (exact match or higher acceptable)

Substitute parts are classified into three categories:

Direct Manufacturer Substitutes: Parts from Nichicon with identical specifications but different product status or packaging.

Upgrade/Parametric Equivalents: Parts with matching electrical and mechanical specifications but enhanced performance characteristics (higher ripple current ratings, active product status, or improved compliance).

Similar Equivalents: Parts from alternative manufacturers meeting all critical electrical and mechanical parameters with minor dimensional variations within tolerance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Ripple Current @ 120 Hz	Lead Spacing	Height (Max)	Product Status	RoHS Status
UVZ1H331MPH	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Obsolete	Non-compliant
UVZ1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Not For New Designs	ROHS3 Compliant
UKA1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Not For New Designs	ROHS3 Compliant
UVY1H331MHD4	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Active	Not specified
UVY1H331MPD	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Not For New Designs	ROHS3 Compliant
UVZ1H331MPD1AA	Nichicon	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Active	ROHS3 Compliant
EKMG500ELL331MJ16S	Chemi-Con	330 µF	50 V	±20%	1000 Hrs	410 mA	5.00 mm	17.50 mm	Active	ROHS3 Compliant
ECA-1HHG331	Panasonic Electronic Components	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.00 mm	Active	ROHS3 Compliant
SEK331M050ST	Cornell Dubilier Electronics (CDE)	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	21.00 mm	Active	ROHS3 Compliant
50PX330MEFC10X16	Rubycon	330 µF	50 V	±20%	2000 Hrs	470 mA	5.00 mm	17.50 mm	Active	ROHS3 Compliant
EEU-HD1H331	Panasonic Electronic Components	330 µF	50 V	±20%	2000 Hrs	410 mA	5.00 mm	17.50 mm	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Immediate Replacement (Direct Substitutes):

UVZ1H331MPD and UVZ1H331MPD1AA are direct Nichicon substitutes with identical electrical and mechanical specifications. UVZ1H331MPD1AA is preferred for new applications as it carries Active product status and ROHS3 compliance, whereas UVZ1H331MPD is marked Not For New Designs.

For New Designs (Active Product Status):

UVY1H331MHD4, UVY1H331MPD, and UVZ1H331MPD1AA are active Nichicon products. UVZ1H331MPD1AA is the recommended primary choice due to Active status and ROHS3 compliance. UVY series parts offer enhanced ripple current performance at high frequency (615 mA @ 10 kHz) compared to the original specification.

For Cross-Manufacturer Substitution:

EEU-HD1H331 (Panasonic) and 50PX330MEFC10X16 (Rubycon) are parametric equivalents with Active product status and ROHS3 compliance. Both maintain identical lead spacing, package diameter, and height specifications. 50PX330MEFC10X16 provides higher ripple current capability (470 mA @ 120 Hz vs. 410 mA).

Dimensional Considerations:

ECA-1HHG331 (Panasonic) has a maximum seated height of 17.00 mm, which is 0.50 mm shorter than the original specification. SEK331M050ST (CDE) has a maximum seated height of 21.00 mm, which is 4.60 mm taller than the original specification. These dimensional differences must be evaluated against PCB layout constraints.

Compliance Considerations:

EKMG500ELL331MJ16S (Chemi-Con) is ROHS3 compliant but specifies 1000 Hrs @ 105°C lifetime, which is half the 2000 Hrs specification of the original part. This reduced lifetime rating must be evaluated against application requirements.

Frequently Asked Questions (FAQ)

Q: Can UVZ1H331MPD be used as a direct replacement for UVZ1H331MPH?

A: Yes. UVZ1H331MPD is a direct Nichicon substitute with identical capacitance (330 µF), voltage rating (50 V), tolerance (±20%), lead spacing (5.00 mm), package diameter (10.00 mm), height (17.50 mm), and ripple current specification (410 mA @ 120 Hz). The primary difference is product status and RoHS compliance. UVZ1H331MPD is marked Not For New Designs but is suitable for replacement applications.

Q: What is the difference between UVZ1H331MPD and UVZ1H331MPD1AA?

A: Both parts are Nichicon 330 µF, 50 V aluminum electrolytic capacitors with identical electrical and mechanical specifications. UVZ1H331MPD1AA carries Active product status and is recommended for new designs, while UVZ1H331MPD is marked Not For New Designs. Both are ROHS3 compliant.

Q: Can I use EEU-HD1H331 (Panasonic) instead of the Nichicon original?

A: Yes. EEU-HD1H331 meets all critical electrical parameters (330 µF, 50 V, ±20% tolerance, 410 mA ripple current @ 120 Hz) and mechanical specifications (5.00 mm lead spacing, 10.00 mm diameter, 17.50 mm height). It is an Active product with ROHS3 compliance. Cross-manufacturer substitution is electrically and mechanically compatible.

Q: Why does SEK331M050ST have a different height specification?

A: SEK331M050ST (Cornell Dubilier) has a maximum seated height of 21.00 mm compared to 17.50 mm for the original part. This 4.60 mm height difference must be evaluated against available PCB clearance. All other electrical and mechanical parameters remain equivalent. Height variation is within the tolerance range for radial can capacitors but requires physical verification before board-level substitution.

Q: Is EKMG500ELL331MJ16S a suitable replacement?

A: EKMG500ELL331MJ16S (Chemi-Con) matches all mechanical specifications and electrical parameters except lifetime rating. It specifies 1000 Hrs @ 105°C compared to 2000 Hrs for the original part. This reduced lifetime must be evaluated against application duty cycle and expected service life requirements. It is suitable only for applications where the reduced lifetime is acceptable.

Q: What is the advantage of 50PX330MEFC10X16 (Rubycon)?

A: 50PX330MEFC10X16 provides higher ripple current capability at 120 Hz (470 mA vs. 410 mA) while maintaining identical capacitance, voltage, tolerance, lead spacing, and package dimensions. It is an Active product with ROHS3 compliance and 2000 Hrs @ 105°C lifetime, making it suitable for applications requiring enhanced ripple current performance.

Q: Can I substitute parts from different manufacturers?

A: Yes, provided all critical electrical and mechanical parameters match: capacitance (330 µF), voltage (50 V), tolerance (±20%), lead spacing (5.00 mm), package diameter (10.00 mm), and height (within tolerance). Cross-manufacturer substitution is electrically and mechanically compatible. Verify height specifications against PCB layout constraints.

Q: Which substitute part is recommended for new designs?

A: UVZ1H331MPD1AA is the primary recommendation for new designs. It is a Nichicon product with Active status, ROHS3 compliance, and identical specifications to the original part. Alternative options include EEU-HD1H331 (Panasonic) and 50PX330MEFC10X16 (Rubycon), both Active products with ROHS3 compliance and equivalent performance.

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