UPJ2G330MHD Equivalent & Substitute Parts

Part Overview

The Nichicon UPJ2G330MHD is a 33 µF, 400 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 5000 hours at 105°C. This part is classified as obsolete, making substitute components necessary for ongoing production and maintenance applications. Equivalent and substitute parts must maintain the same capacitance value, voltage rating, and mechanical compatibility while meeting current availability and compliance requirements.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	400 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.295" (7.50mm)
Can Diameter	0.709" (18.00mm)
Height	1.457" (37.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Substitution Criteria:

Capacitance value must equal 33 µF
Voltage rating must be ≥ 400 V
Tolerance must be ±20%
Polarization must be polar
Package type must be radial, can
Mounting type must be through hole
Operating temperature range must encompass -40°C to 105°C
Lead spacing must be 0.295" (7.50mm)
Can diameter must be 0.709" (18.00mm) or smaller (mechanical fit)
RoHS3 compliance required

Secondary Consideration:

Lifetime at 105°C may vary; longer lifetime provides enhanced reliability margin

Parts are grouped into two categories: direct mechanical and electrical equivalents (same footprint and electrical characteristics), and compatible substitutes (same electrical performance with acceptable dimensional variations).

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Can Diameter	Height	Status
UPJ2G330MHD	Nichicon	UPJ	33 µF	400 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.457" (37.00mm)	Obsolete
UCS2W330MHD	Nichicon	UCS	33 µF	450 V	±20%	10000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active
UAQ2G330MHD	Nichicon	UAQ	33 µF	400 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.654" (42.00mm)	Active
UAQ2G330MHD3	Nichicon	UAQ	33 µF	400 V	±20%	2000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.866" (22.00mm)	Active
UAQ2G330MHD6	Nichicon	UAQ	33 µF	400 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Active
UCY2G330MHD	Nichicon	UCY	33 µF	400 V	±20%	12000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	Active
UCY2G330MHD3	Nichicon	UCY	33 µF	400 V	±20%	12000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.846" (21.50mm)	Active
UPW2G330MHD	Nichicon	UPW	33 µF	400 V	±20%	8000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.240" (31.50mm)	Obsolete
URZ2G330MHD	Nichicon	URZ	33 µF	400 V	±20%	1000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.846" (21.50mm)	Active
UVZ2G330MHD	Nichicon	UVZ	33 µF	400 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.299" (33.00mm)	Not For New Designs
EKMG401ELL330ML25S	Chemi-Con	KMG	33 µF	400 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.043" (26.50mm)	Active

Engineering Selection Recommendations

Direct Mechanical and Electrical Equivalent: UAQ2G330MHD3 is the primary substitute. It maintains identical lead spacing (0.295" / 7.50mm), can diameter (0.709" / 18.00mm), and electrical specifications (33 µF, 400 V, ±20%). The part is active status with ROHS3 compliance. Height reduction from 1.457" to 0.866" provides improved board space utilization while maintaining all electrical and mechanical compatibility criteria.

Higher Voltage Rating Alternative: UCS2W330MHD offers 450 V rating with extended lifetime (10000 hours at 105°C). Lead spacing and polarization are compatible. Can diameter is reduced to 0.630" (16.00mm) and height to 1.043" (26.50mm), requiring PCB layout verification for mechanical fit. Active status with ROHS3 compliance.

Extended Lifetime Options: UCY2G330MHD3 provides 12000-hour lifetime at 105°C with identical electrical specifications. Lead spacing matches at 0.295" (7.50mm). Can diameter is 0.630" (16.00mm) and height is 0.846" (21.50mm). Active status with ROHS3 compliance. Suitable for applications requiring enhanced reliability margin.

Alternative Manufacturer: EKMG401ELL330ML25S (Chemi-Con KMG series) provides equivalent electrical and mechanical specifications with 2000-hour lifetime. Lead spacing, can diameter, and height are compatible. Active status with ROHS3 compliance. Provides supply chain diversification.

Parts to Avoid for New Designs: UVZ2G330MHD is marked "Not For New Designs" and should not be selected for new applications. UPW2G330MHD is obsolete. URZ2G330MHD has reduced lifetime (1000 hours) and is suitable only for non-critical applications.

Frequently Asked Questions (FAQ)

Q: Can UAQ2G330MHD be used as a direct replacement for UPJ2G330MHD? A: UAQ2G330MHD3 is the compatible variant. Standard UAQ2G330MHD has different lead spacing (0.197" vs. 0.295") and smaller can diameter, making it unsuitable for direct PCB replacement without layout modification.

Q: What is the impact of using a higher voltage rating capacitor (450 V vs. 400 V)? A: UCS2W330MHD at 450 V rating is electrically compatible and provides additional voltage margin. Physical dimensions differ; verification of PCB footprint clearance is required before substitution.

Q: Why do some substitutes have different heights? A: Height variation reflects different internal construction and thermal design within the same capacitance and voltage class. All listed substitutes maintain the same lead spacing and can diameter compatibility with the original part's footprint, though vertical clearance must be verified in the application.

Q: Is the lifetime rating critical for substitution? A: Lifetime at 105°C indicates expected operational duration under rated conditions. Substitutes with equal or longer lifetime are directly compatible. Parts with shorter lifetime (e.g., URZ2G330MHD at 1000 hours) are acceptable only if application duty cycle and temperature profile support reduced lifetime.

Q: Are Nichicon and Chemi-Con parts interchangeable? A: EKMG401ELL330ML25S (Chemi-Con) meets all electrical and mechanical specifications of the UPJ2G330MHD. Both manufacturers produce ROHS3-compliant aluminum electrolytic capacitors with identical rated parameters. Substitution is valid from an engineering standpoint; supply chain and procurement policies may apply.

Q: What does "Not For New Designs" status mean? A: UVZ2G330MHD is available but not recommended for new product development. It may be used for maintenance and repair of existing equipment. For new designs, select from active-status alternatives.

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