Nichicon UVY1E331MPD 330µF 25V Radial Aluminum Electrolytic Capacitor Equivalent & Substitute Parts

Part Overview

The Nichicon UVY1E331MPD is a 330µF 25V radial aluminum electrolytic capacitor rated for 1000 hours at 105°C. This part carries a "Not For New Designs" status, indicating it has been superseded in Nichicon's product portfolio. Finding equivalent or substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original specification must be maintained or improved upon.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ 105°C	1000 Hrs
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.138" (4.60mm)
Case Diameter	0.315" (8.00mm)
Height (Max)	0.512" (13.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UVY1E331MPD is determined by strict electrical and mechanical compatibility:

Electrical Parameters (Must Match):

Capacitance: 330 µF (exact match required)
Voltage Rating: 25 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Mechanical Parameters (Must Match or Exceed):

Lead Spacing: 0.138" (4.60mm) for direct PCB compatibility
Case Diameter: 0.315" (8.00mm) for space constraints
Height: 0.512" (13.00mm) maximum for clearance
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Performance Parameters (Can Improve):

Lifetime @ 105°C: 1000 Hrs minimum (higher values acceptable)
Ripple Current: 275 mA @ 120 Hz minimum (higher values acceptable)
Operating Temperature: -55°C to 105°C (exact match required)

Compliance (Must Match):

RoHS Status: ROHS3 Compliant (exact match required)

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Case Dia	Height (Max)	Ripple Current @ 120Hz	Product Status	RoHS
UVY1E331MPD	UVY	330 µF	25 V	1000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	275 mA	Not For New Designs	ROHS3
UPA1E331MPD	UPA	330 µF	25 V	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	409.5 mA	Active	ROHS3
UKA1E331MPD	UKA	330 µF	25 V	2000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	290 mA	Not For New Designs	ROHS3
UPJ1E331MPD	UPJ	330 µF	25 V	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.827" (21.00mm)	610 mA	Not For New Designs	ROHS3
UPJ1E331MPD6	UPJ	330 µF	25 V	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.650" (16.50mm)	575 mA	Not For New Designs	ROHS3
UPM1E331MPD	UPM	330 µF	25 V	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.846" (21.50mm)	610 mA	Not For New Designs	ROHS3
UPM1E331MPD6	UPM	330 µF	25 V	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.669" (17.00mm)	630 mA	Not For New Designs	ROHS3
UPS1E331MPD	UPS	330 µF	25 V	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.551" (14.00mm)	426 mA	Not For New Designs	ROHS3
UPW1E331MPD	UPW	330 µF	25 V	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.492" (12.50mm)	494 mA	Not For New Designs	ROHS3
UPW1E331MPD6	UPW	330 µF	25 V	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.591" (15.00mm)	474.5 mA	Active	ROHS3
UVZ1E331MPD	UVZ	330 µF	25 V	2000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.492" (12.50mm)	315 mA	Not For New Designs	ROHS3

Engineering Selection Recommendations

Direct Mechanical Substitutes (Same Footprint: 0.138" Lead Spacing, 0.315" Diameter, ≤0.512" Height)

UPA1E331MPD is the primary direct substitute. It maintains identical mechanical dimensions and electrical specifications while offering improved lifetime (3000 hours vs. 1000 hours at 105°C) and higher ripple current capability (409.5 mA vs. 275 mA @ 120 Hz). UPA1E331MPD carries Active product status, ensuring long-term availability. This part is suitable for direct replacement without PCB modification.

UPW1E331MPD6 is an alternative direct mechanical substitute with identical lead spacing and case diameter. It provides 3000-hour lifetime at 105°C and higher ripple current (474.5 mA @ 120 Hz). UPW1E331MPD6 is currently Active, supporting long-term supply continuity. Height is 0.591" (15.00mm), which exceeds the original 0.512" specification but remains within typical PCB clearance tolerances.

Mechanical Variants (Different Footprint: 0.197" Lead Spacing, 0.394" Diameter)

UPS1E331MPD, UPW1E331MPD, UPJ1E331MPD6, and UPM1E331MPD6 require PCB modification due to different lead spacing and case diameter. These parts are suitable only when PCB layout can accommodate the larger footprint. UPW1E331MPD and UPJ1E331MPD6 offer 5000-hour lifetime at 105°C with significantly higher ripple current ratings.

Compliance Verification

All substitute parts maintain ROHS3 compliance and operate across the -55°C to 105°C temperature range. UPM series parts (UPM1E331MPD, UPM1E331MPD6) include AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can UPA1E331MPD replace UVY1E331MPD without any modifications?

A: Yes. UPA1E331MPD is a direct mechanical and electrical substitute. It shares identical lead spacing (0.138"), case diameter (0.315"), and maximum height (0.512"). All electrical parameters match: 330 µF, 25 V, ±20% tolerance. The primary difference is improved lifetime (3000 hours vs. 1000 hours at 105°C), which is a performance enhancement with no compatibility concerns.

Q: Why do some substitute parts have different lead spacing?

A: Nichicon offers 330 µF 25 V radial capacitors in two standard footprints: 0.138" (4.60mm) lead spacing with 0.315" (8.00mm) diameter, and 0.197" (5.00mm) lead spacing with 0.394" (10.00mm) diameter. Parts with different lead spacing require PCB modification and cannot be used as direct drop-in replacements.

Q: What is the difference between UPW1E331MPD and UPW1E331MPD6?

A: Both are Nichicon UPW series 330 µF 25 V capacitors. UPW1E331MPD has 0.197" lead spacing and 5000-hour lifetime. UPW1E331MPD6 has 0.138" lead spacing (matching the original UVY1E331MPD footprint) with 3000-hour lifetime. UPW1E331MPD6 is the direct mechanical substitute within the UPW series.

Q: Is UPJ1E331MPD a suitable substitute despite its greater height?

A: UPJ1E331MPD has 0.827" height, exceeding the original 0.512" specification. It maintains the same lead spacing (0.138") and case diameter (0.315"), but requires verification of available PCB clearance. Use only if vertical space permits. UPJ1E331MPD offers 3000-hour lifetime and significantly higher ripple current (610 mA @ 120 Hz).

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

A: This designation indicates the part has been superseded in Nichicon's active product line. While existing inventory remains available, Nichicon recommends using Active-status alternatives for new designs. UPA1E331MPD and UPW1E331MPD6 are the Active alternatives with identical or superior specifications.

Q: Can I use UPM1E331MPD in non-automotive applications?

A: Yes. UPM1E331MPD is qualified to AEC-Q200 automotive standards but is not restricted to automotive use. It is suitable for any general-purpose application requiring 330 µF 25 V capacitance. The automotive qualification represents an additional reliability assurance.

Q: How do I verify ripple current compatibility?

A: Compare the ripple current rating of the substitute part against the actual ripple current in your circuit. The substitute part's ripple current rating must equal or exceed the circuit requirement. UPA1E331MPD (409.5 mA @ 120 Hz) and UPW1E331MPD6 (474.5 mA @ 120 Hz) provide higher ripple current margins than the original UVY1E331MPD (275 mA @ 120 Hz).

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