Nichicon UPJ2W330MHD 33µF 450V Radial Aluminum Electrolytic Capacitor Equivalent & Substitute Parts

Part Overview

The Nichicon UPJ2W330MHD is a 33µF, 450V radial aluminum electrolytic capacitor rated for 5000 hours at 105°C. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The UPJ series represents an earlier generation design; active alternatives with improved performance characteristics and extended operational lifetimes are available from both Nichicon and other manufacturers.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Tolerance	±20%	-
Voltage Rating	450	V
Lifetime @ 105°C	5000	Hours
Operating Temperature Range	-25 to 105	°C
Lead Spacing	7.50	mm
Diameter	18.00	mm
Height	41.50	mm
Mounting Type	Through Hole	-
Package Type	Radial, Can	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance (33µF), tolerance (±20%), voltage rating (450V), polarization (polar), mounting type (through hole), and package type (radial can). Parts are grouped by their ability to meet these core electrical and mechanical requirements.

Direct substitutes maintain identical electrical specifications and physical footprints, differing only in series designation and performance enhancements (lifetime, ripple current capacity).

Similar substitutes meet all core electrical requirements but differ in physical dimensions (lead spacing, diameter, or height), requiring PCB layout verification before implementation.

Cross-manufacturer substitutes from Rubycon meet identical electrical and mechanical specifications, providing alternative sourcing options.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Lifetime @ 105°C (Hrs)	Lead Spacing (mm)	Diameter (mm)	Height (mm)	Status
UPJ2W330MHD	Nichicon	UPJ	33	450	5000	7.50	18.00	41.50	Obsolete
UCS2W330MHD	Nichicon	UCS	33	450	10000	7.50	16.00	26.50	Active
UCS2W330MHD6	Nichicon	UCS	33	450	10000	7.50	18.00	21.50	Active
ULD2W330MHD6	Nichicon	ULD	33	450	20000	7.50	18.00	22.00	Not For New Designs
UCS2W330MND9	Nichicon	UCS	33	450	10000	5.00	10.00	42.00	Active
UPS2W330MHD	Nichicon	UPS	33	450	3000	7.50	18.00	37.50	Obsolete
UPT2W330MHD	Nichicon	UPT	33	450	5000	5.00	12.50	37.00	Active
UPZ2W330MND9	Nichicon	UPZ	33	450	2000	5.00	10.00	42.00	Active
UVZ2W330MHD	Nichicon	UVZ	33	450	2000	7.50	16.00	37.00	Not For New Designs
450BXC33MEFC18X20	Rubycon	BXC	33	450	12000	7.50	18.00	22.00	Active
450LLE33MEFC18X20	Rubycon	LLE	33	450	20000	7.50	18.00	22.00	Active

Engineering Selection Recommendations

Primary Recommendation: UCS2W330MHD6

The Nichicon UCS2W330MHD6 is the manufacturer-recommended direct substitute. It maintains the 7.50mm lead spacing and 18.00mm diameter of the original UPJ2W330MHD, ensuring PCB compatibility without layout modifications. The UCS series offers doubled operational lifetime (10000 hours versus 5000 hours at 105°C) while maintaining active product status and full ROHS3 compliance. This part is suitable for new designs and ongoing production.

Secondary Recommendation: 450LLE33MEFC18X20 (Rubycon)

The Rubycon 450LLE33MEFC18X20 provides identical physical dimensions (7.50mm lead spacing, 18.00mm diameter, 22.00mm height) and electrical specifications. It offers extended lifetime (20000 hours at 105°C) with active product status. This option provides cross-manufacturer redundancy and is ROHS3 compliant.

Alternative for Space-Constrained Applications: UCS2W330MHD

Where reduced height is acceptable, the Nichicon UCS2W330MHD offers 26.50mm height (versus 41.50mm original) with identical lead spacing and diameter. This part maintains 10000-hour lifetime and active status but requires PCB height verification.

Not Recommended for New Designs:

ULD2W330MHD6 and UVZ2W330MHD carry "Not For New Designs" status and should be used only for legacy system maintenance where exact form-factor matching is critical.

Frequently Asked Questions (FAQ)

Q: Can UCS2W330MHD6 be used as a direct replacement for UPJ2W330MHD without PCB modifications?

A: Yes. Both parts share identical lead spacing (7.50mm) and diameter (18.00mm). The UCS2W330MHD6 height is 21.50mm versus the original 41.50mm, which is a reduction that does not affect electrical function. No PCB layout changes are required.

Q: What is the difference between UCS2W330MHD and UCS2W330MHD6?

A: Both are Nichicon UCS series parts with identical electrical specifications (33µF, 450V, 10000-hour lifetime). The primary difference is physical height: UCS2W330MHD is 26.50mm tall with 16.00mm diameter, while UCS2W330MHD6 is 21.50mm tall with 18.00mm diameter. The UCS2W330MHD6 maintains the original 18.00mm diameter, making it the preferred substitute for form-factor compatibility.

Q: Why is the UPJ2W330MHD classified as obsolete?

A: The UPJ series represents an earlier generation design with 5000-hour lifetime at 105°C. Nichicon has transitioned to the UCS series, which offers doubled operational lifetime (10000 hours) with improved ripple current handling and active product status. Obsolescence reflects this product line evolution.

Q: Can I use UPZ2W330MND9 as a substitute?

A: UPZ2W330MND9 meets all core electrical requirements (33µF, 450V, polar, through-hole radial can) but differs significantly in physical dimensions: 5.00mm lead spacing (versus 7.50mm), 10.00mm diameter (versus 18.00mm), and 42.00mm height. PCB layout verification is mandatory before implementation. Additionally, this part has only 2000-hour lifetime at 105°C, representing reduced operational durability compared to the original 5000-hour rating.

Q: Are Rubycon parts compatible with Nichicon footprints?

A: Yes, for parts with identical dimensions. The Rubycon 450LLE33MEFC18X20 and 450BXC33MEFC18X20 both maintain 7.50mm lead spacing and 18.00mm diameter, matching the original UPJ2W330MHD footprint. Verify height clearance: both Rubycon parts are 22.00mm tall versus the original 41.50mm.

Q: What does "REACH Affected" status mean for ULD2W330MHD6?

A: REACH Affected indicates the part may contain substances of concern under EU REACH regulations. This does not prevent use but requires compliance verification within your supply chain and end-market requirements. For applications with strict REACH compliance mandates, select parts with "REACH Unaffected" status such as UCS2W330MHD6 or 450LLE33MEFC18X20.

Q: Which substitute offers the longest operational lifetime?

A: Both ULD2W330MHD6 (Nichicon) and 450LLE33MEFC18X20 (Rubycon) offer 20000-hour lifetime at 105°C. The Rubycon part is preferred for new designs due to active product status and REACH Unaffected classification.

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