Equivalent & Substitute Parts for UCS2W330MND9

Part Overview

The Nichicon UCS2W330MND9 is a 33 µF, 450 V aluminum electrolytic capacitor in radial, can package rated for 10,000 hours at 105°C. This component is classified as Active product status and is suitable for general-purpose applications requiring stable capacitance and ripple current handling across industrial temperature ranges.

Substitute parts become necessary when the primary part reaches end-of-life inventory, when alternative manufacturers offer improved specifications such as extended lifetime ratings, or when mechanical constraints require different package dimensions while maintaining electrical equivalence.

Key Parameters

Parameter	Value
Capacitance	33 µF
Tolerance	±20%
Voltage Rating	450 V
Lifetime @ 105°C	10,000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UCS2W330MND9 is determined by the following criteria:

Mandatory Electrical Parameters (Must Match):

Capacitance: 33 µF
Tolerance: ±20%
Voltage Rating: 450 V
Polarization: Polar
Mounting Type: Through Hole
Package Type: Radial, Can

Flexible Parameters (May Vary):

Lifetime @ 105°C: Equal or greater than 10,000 hours
Lead Spacing: 0.197" (5.00mm) preferred; 0.295" (7.50mm) acceptable with PCB layout verification
Diameter: 0.394" (10.00mm) preferred; up to 0.709" (18.00mm) acceptable with space availability
Height: Varies by series; maximum 1.654" (42.00mm)
Ripple Current Ratings: Equal or greater than specified values
Operating Temperature: -25°C ~ 105°C minimum
RoHS/REACH Compliance: ROHS3 Compliant required

Substitutes are grouped by manufacturer and series, with lifetime rating as the primary differentiator for performance-critical applications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Ripple Current @ 100 kHz	Product Status
UCS2W330MND9	Nichicon	UCS	33 µF	450 V	10,000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.654" (42.00mm)	720 mA	Active
UPS2W330MHD	Nichicon	UPS	33 µF	450 V	3,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.476" (37.50mm)	232 mA	Obsolete
UPT2W330MHD	Nichicon	UPT	33 µF	450 V	5,000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.457" (37.00mm)	448 mA	Active
UVZ2W330MHD	Nichicon	UVZ	33 µF	450 V	2,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.457" (37.00mm)	264 mA	Not For New Designs
450BXW33MEFR10X40	Rubycon	BXW	33 µF	450 V	12,000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.654" (42.00mm)	900 mA	Active
ECA-2WHG330	Panasonic	NHG-A	33 µF	450 V	2,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.319" (34.60mm)	232.5 mA	Active
EEU-EB2W330	Panasonic	EB-A	33 µF	450 V	5,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.319" (34.60mm)	680 mA	Active
EEU-EB2W330S	Panasonic	EB-A	33 µF	450 V	5,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.063" (27.00mm)	680 mA	Active
EEU-ED2W330	Panasonic	ED-A	33 µF	450 V	10,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.240" (31.50mm)	850 mA	Active
EEU-EE2W330	Panasonic	EE-A	33 µF	450 V	10,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	1 A	Active
EEU-EE2W330S	Panasonic	EE-A	33 µF	450 V	10,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.866" (22.00mm)	1 A	Active

Engineering Selection Recommendations

Direct Equivalents (Identical Footprint & Performance):

The 450BXW33MEFR10X40 (Rubycon BXW series) provides direct mechanical and electrical compatibility with the UCS2W330MND9. Both parts share identical lead spacing (0.197", 5.00mm), diameter (0.394", 10.00mm), and height (1.654", 42.00mm). The Rubycon part exceeds the lifetime specification with 12,000 hours at 105°C versus 10,000 hours, and delivers superior ripple current handling (900 mA @ 100 kHz versus 720 mA). Both are Active status and ROHS3 compliant.

Panasonic Alternatives with Modified Footprint:

The EEU-ED2W330 and EEU-EE2W330 series from Panasonic match the 10,000-hour lifetime requirement. Both feature larger lead spacing (0.295", 7.50mm) and diameter (0.630", 16.00mm), requiring PCB layout modification. The EEU-EE2W330 delivers the highest ripple current capacity (1 A @ 100 kHz) among all substitutes. Both are Active status and ROHS3 compliant.

Nichicon Alternatives:

The UPT2W330MHD (Nichicon UPT series) maintains the preferred lead spacing (0.197", 5.00mm) but provides only 5,000-hour lifetime, half the original specification. This part is suitable only for applications with reduced lifetime requirements. The UPS2W330MHD is Obsolete and should not be selected for new designs.

Not Recommended:

The UVZ2W330MHD carries "Not For New Designs" status and the ECA-2WHG330 provides only 2,000-hour lifetime, both falling below the original 10,000-hour specification.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different lead spacing on my existing PCB?

A: Lead spacing differences require PCB layout verification. The UCS2W330MND9 uses 0.197" (5.00mm) spacing. Substitutes with 0.295" (7.50mm) spacing will not fit the original footprint without PCB modification. Verify hole positions and trace routing before substitution.

Q: What is the minimum lifetime requirement for a direct substitute?

A: The UCS2W330MND9 specifies 10,000 hours at 105°C. Substitutes with equal or greater lifetime (10,000+ hours) maintain the original reliability profile. Parts with lower lifetime ratings (5,000 hours or less) reduce system reliability and should only be used if application requirements permit.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All parts listed meet ROHS3 compliance and REACH Unaffected status, matching the original part's environmental certifications.

Q: Which substitute offers the best ripple current performance?

A: The EEU-EE2W330 and EEU-EE2W330S both deliver 1 A ripple current at 100 kHz, exceeding the original 720 mA specification. The 450BXW33MEFR10X40 (Rubycon) provides 900 mA with identical mechanical footprint to the original part.

Q: Can I substitute a part with a larger diameter if space permits?

A: Yes, if PCB layout allows. Larger diameter parts (0.630" to 0.709") require verification of clearance to adjacent components and traces. Height variations must also be confirmed for mechanical assembly constraints.

Q: What is the difference between EEU-EB2W330 and EEU-EB2W330S?

A: Both are Panasonic EB-A series with identical electrical specifications (33 µF, 450 V, 5,000 hours). The primary difference is mechanical: EEU-EB2W330 has 0.630" (16.00mm) diameter and 1.319" (34.60mm) height, while EEU-EB2W330S has 0.709" (18.00mm) diameter and 1.063" (27.00mm) height. Select based on available PCB space.

Q: Is the Nichicon UPT2W330MHD a suitable replacement?

A: The UPT2W330MHD maintains the preferred 0.197" (5.00mm) lead spacing but provides only 5,000-hour lifetime, half the original specification. It is suitable only for applications where reduced lifetime is acceptable. For equivalent or superior reliability, select the Rubycon 450BXW33MEFR10X40 or Panasonic EEU-ED/EE series.

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