Equivalent & Substitute Parts for UPS1V331MPD

Part Overview

The Nichicon UPS1V331MPD is a 330 µF, 35 V aluminum electrolytic capacitor in radial configuration with a 2000-hour lifetime rating at 105°C. This component is classified as "Not For New Designs," indicating it has been superseded in Nichicon's product portfolio. Organizations using this part in active applications require equivalent or substitute components that maintain electrical and mechanical compatibility while potentially offering improved performance characteristics or extended availability.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 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)
Can Diameter	0.394" (10.00 mm)
Height	0.689" (17.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UPS1V331MPD is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 35 V minimum (equal or higher voltage rating is acceptable)
Tolerance: ±20% (standard tolerance for this category)
Polarization: Polar (electrolytic capacitor type)
Mounting Type: Through Hole (radial lead configuration)
Lead Spacing: 0.197" (5.00 mm) (PCB footprint compatibility)
Can Diameter: 0.394" (10.00 mm) (physical envelope constraint)

Performance Parameters (Secondary Consideration):

Lifetime @ 105°C: 2000 hours or greater
Operating Temperature Range: -55°C to 105°C (minimum requirement)
Ripple Current Rating: Must support application requirements
Impedance: Lower values indicate improved performance

Substitute parts are grouped into two categories: direct equivalents (same voltage rating and lifetime) and upgrades (higher voltage rating or extended lifetime). Parts with different can diameters, lead spacing, or height dimensions are classified as similar but require PCB layout verification.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Can Dia (mm)	Height (mm)	Lead Spacing (mm)	Impedance (mOhms)	Product Status
UPS1V331MPD	Nichicon	UPS	330 µF	35 V	2000 Hrs	10.00	17.50	5.00	140	Not For New Designs
UKA1H331MPD	Nichicon	UKA	330 µF	50 V	2000 Hrs	10.00	17.50	5.00	—	Not For New Designs
UPJ1V331MHD6	Nichicon	UPJ	330 µF	35 V	5000 Hrs	12.50	16.50	5.00	100	Not For New Designs
UPJ1V331MPD	Nichicon	UPJ	330 µF	35 V	5000 Hrs	10.00	21.50	5.00	96	Not For New Designs
UPM1V331MHD6	Nichicon	UPM	330 µF	35 V	5000 Hrs	12.50	17.00	5.00	65	Not For New Designs
UPM1V331MPD	Nichicon	UPM	330 µF	35 V	5000 Hrs	10.00	22.00	5.00	60	Not For New Designs
UPW1V331MPD	Nichicon	UPW	330 µF	35 V	5000 Hrs	10.00	16.00	5.00	68	Not For New Designs
UPW1V331MPD6	Nichicon	UPW	330 µF	35 V	3000 Hrs	8.00	20.00	4.60	65	Not For New Designs
337KXM035M	Cornell Dubilier / Illinois Capacitor	KXM	330 µF	35 V	4000 Hrs	10.00	17.50	5.00	120	Active
337RZM035M	Cornell Dubilier / Illinois Capacitor	RZM	330 µF	35 V	3000 Hrs	10.00	18.00	5.00	276	Active
50PX330MEFC10X16	Rubycon	PX	330 µF	50 V	2000 Hrs	10.00	17.50	5.00	—	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (Same Voltage, Same Lifetime):

UKA1H331MPD and 50PX330MEFC10X16 are direct electrical equivalents with identical 330 µF capacitance, 2000-hour lifetime at 105°C, and matching lead spacing. Both feature 50 V voltage ratings, providing additional voltage margin over the original 35 V specification. UKA1H331MPD is a Nichicon product with ROHS3 compliance. 50PX330MEFC10X16 is manufactured by Rubycon with Active product status, offering superior long-term availability compared to the "Not For New Designs" classification of UPS1V331MPD.

Extended Lifetime Substitutes (Same Voltage, Improved Lifetime):

UPJ1V331MPD, UPM1V331MPD, and UPW1V331MPD offer 5000-hour lifetime ratings at 105°C while maintaining 35 V voltage specification and 330 µF capacitance. These parts share the 0.197" (5.00 mm) lead spacing required for PCB compatibility. UPJ and UPM series feature lower impedance values (96 mOhms and 60 mOhms respectively) compared to the original 140 mOhms, indicating improved high-frequency performance. UPM series carries AEC-Q200 automotive qualification. UPW1V331MPD provides the lowest height profile (16.00 mm) among extended-lifetime options while maintaining standard can diameter.

Alternative Manufacturers (Active Product Status):

337KXM035M from Cornell Dubilier / Illinois Capacitor is an Active product with 330 µF, 35 V specification and 4000-hour lifetime. Physical dimensions (10.00 mm diameter, 17.50 mm height, 5.00 mm lead spacing) match the original UPS1V331MPD exactly, enabling direct PCB substitution. ROHS3 compliance and Active product status ensure continued availability and regulatory compliance.

Voltage-Upgraded Options:

UKA1H331MPD and 50PX330MEFC10X16 both feature 50 V ratings, providing 43% additional voltage margin. These are suitable for applications where voltage derating or future design margin is beneficial. Both maintain identical physical footprints and lead spacing as the original part.

Mechanical Constraints:

UPW1V331MPD6 features a reduced lead spacing of 0.138" (4.60 mm) and smaller can diameter of 0.315" (8.00 mm), requiring PCB layout modification. UPJ1V331MHD6 and UPM1V331MHD6 feature larger can diameters of 0.492" (12.50 mm), which may conflict with existing PCB space constraints. Height variations range from 16.00 mm to 22.00 mm; verify clearance in target application before selection.

Frequently Asked Questions (FAQ)

Q: Can UKA1H331MPD be used as a direct replacement for UPS1V331MPD?

A: UKA1H331MPD is electrically compatible with identical 330 µF capacitance, ±20% tolerance, and matching lead spacing of 0.197" (5.00 mm). The 50 V voltage rating exceeds the original 35 V specification, providing additional safety margin. Physical dimensions (10.00 mm diameter, 17.50 mm height) are identical. Substitution is valid from an electrical and mechanical standpoint.

Q: What is the advantage of UPJ1V331MPD over UPS1V331MPD?

A: UPJ1V331MPD extends the lifetime rating from 2000 hours to 5000 hours at 105°C while maintaining identical 330 µF capacitance and 35 V voltage rating. Impedance is reduced from 140 mOhms to 96 mOhms, improving ripple current handling and reducing heat generation. Lead spacing and can diameter remain compatible with the original PCB footprint.

Q: Why is 337KXM035M recommended despite being from a different manufacturer?

A: 337KXM035M from Cornell Dubilier / Illinois Capacitor maintains exact physical and electrical compatibility: 330 µF, 35 V, 0.197" lead spacing, 10.00 mm diameter, and 17.50 mm height. Critically, it carries Active product status, ensuring long-term availability and supply chain stability. ROHS3 compliance meets regulatory requirements. The 4000-hour lifetime at 105°C exceeds the original 2000-hour specification.

Q: Can parts with different lead spacing be used?

A: Parts with different lead spacing require PCB modification. UPW1V331MPD6 features 0.138" (4.60 mm) spacing versus the standard 0.197" (5.00 mm). Physical PCB holes must be repositioned or new boards fabricated. This substitution is not recommended for existing designs without layout revision.

Q: What is the difference between UPM1V331MPD and UPJ1V331MPD?

A: Both offer 330 µF, 35 V, and 5000-hour lifetime. UPM1V331MPD features lower impedance (60 mOhms versus 96 mOhms), superior ripple current performance, and AEC-Q200 automotive qualification. UPM1V331MPD is taller (22.00 mm versus 21.50 mm) and carries REACH Affected status. UPJ1V331MPD is suitable for general-purpose applications; UPM1V331MPD is specified for automotive environments.

Q: Is 50PX330MEFC10X16 suitable for long-term production use?

A: 50PX330MEFC10X16 from Rubycon carries Active product status, indicating current production and long-term availability. It meets ROHS3 compliance and maintains identical physical dimensions to UPS1V331MPD (10.00 mm diameter, 17.50 mm height, 5.00 mm lead spacing). The 50 V voltage rating and 2000-hour lifetime provide equivalent or superior performance. This part is suitable for new production designs.

Q: What does "Not For New Designs" mean for UPS1V331MPD?

A: This classification indicates Nichicon has superseded the UPS series in favor of newer product lines (UPJ, UPM, UPW). While existing inventory may be available, the manufacturer does not recommend this part for new circuit designs. Substitution with Active-status alternatives ensures design longevity and supply chain continuity.

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