Equivalent & Substitute Parts for UPJ2A331MHD

Part Overview

The UPJ2A331MHD is a 330 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it is an obsolete or legacy part. Finding equivalent and substitute parts is necessary to support existing designs, facilitate production continuity, or transition to active alternatives with comparable electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required for PCB compatibility)
Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
RoHS Status: ROHS3 Compliant (required for regulatory compliance)

All substitute parts listed meet these mandatory criteria. Secondary parameters such as lifetime rating, ripple current capacity, impedance, and application ratings may vary and are documented for design consideration but do not disqualify substitution eligibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Impedance	Lead Spacing	Size Dia	Height (Max)	Product Status	Inventory
UPJ2A331MHD	Nichicon	330 µF	100 V	±20%	5000 Hrs	62 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Not For New Designs	1087 Pcs
UPJ2A331MHD6	Nichicon	330 µF	100 V	±20%	5000 Hrs	70 mOhms	0.295" (7.50 mm)	0.709" (18.00 mm)	1.043" (26.50 mm)	Not For New Designs	1174 Pcs
UPM2A331MHD6	Nichicon	330 µF	100 V	±20%	5000 Hrs	70 mOhms	0.295" (7.50 mm)	0.709" (18.00 mm)	1.063" (27.00 mm)	Not For New Designs	1363 Pcs
UPS2A331MHD	Nichicon	330 µF	100 V	±20%	3000 Hrs	90 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	Not For New Designs	9594 Pcs
UPW2A331MHD	Nichicon	330 µF	100 V	±20%	8000 Hrs	90 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	0.984" (25.00 mm)	Not For New Designs	16387 Pcs
B41858C9337M000	EPCOS - TDK Electronics	330 µF	100 V	±20%	5000 Hrs	90 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Active	770 Pcs
MAL213639331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Active	1106 Pcs
MAL213659331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Active	898 Pcs
MAL213669331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Active	905 Pcs
EEU-FC2A331	Panasonic Electronic Components	330 µF	100 V	±20%	5000 Hrs	62 mOhms	0.295" (7.50 mm)	0.630" (16.00 mm)	1.240" (31.50 mm)	Active	2078 Pcs
EEU-FC2A331S	Panasonic Electronic Components	330 µF	100 V	±20%	5000 Hrs	70 mOhms	0.295" (7.50 mm)	0.709" (18.00 mm)	0.984" (25.00 mm)	Active	3372 Pcs

Engineering Selection Recommendations

Direct Substitutes (Same Lifetime Rating)

UPJ2A331MHD6, UPM2A331MHD6, B41858C9337M000, EEU-FC2A331, and EEU-FC2A331S all maintain the 5000-hour lifetime rating at 105°C, matching the original part's thermal endurance specification. These parts are electrically and mechanically compatible with the UPJ2A331MHD.

Extended Lifetime Alternatives

MAL213639331E3, MAL213659331E3, and MAL213669331E3 offer 10000-hour lifetime ratings at 105°C, providing enhanced reliability margins. These Vishay parts are Active status components suitable for new designs and carry ROHS3 compliance.

Higher Lifetime Option

UPW2A331MHD provides 8000-hour lifetime at 105°C, positioning it between standard and extended-life categories. This Nichicon part maintains the same footprint as the original UPJ2A331MHD.

Lower Lifetime Option

UPS2A331MHD offers 3000-hour lifetime at 105°C. This part is suitable only for applications where reduced thermal endurance is acceptable. It provides the highest inventory availability (9594 Pcs).

Active Status Preference

For new designs or long-term production continuity, B41858C9337M000 (EPCOS - TDK Electronics, Active status) and the Vishay MAL series (Active status) are recommended over Nichicon Not For New Designs parts.

Dimensional Considerations

UPJ2A331MHD6, UPM2A331MHD6, and EEU-FC2A331S feature larger diameter cans (0.709" vs. 0.630") with reduced heights. Verify PCB layout clearance before substitution.

Frequently Asked Questions (FAQ)

Q: Can UPS2A331MHD replace UPJ2A331MHD directly?

A: Yes, electrically and mechanically. However, UPS2A331MHD has a 3000-hour lifetime at 105°C versus 5000 hours for UPJ2A331MHD. Use only if your application does not require the extended thermal endurance of the original part.

Q: What is the difference between UPJ2A331MHD and UPJ2A331MHD6?

A: Both are Nichicon UPJ series with identical electrical ratings and 5000-hour lifetime. UPJ2A331MHD6 has a larger diameter can (0.709" vs. 0.630") and shorter height (1.043" vs. 1.299"). Verify PCB footprint compatibility before substitution.

Q: Are the Vishay MAL213639331E3, MAL213659331E3, and MAL213669331E3 interchangeable?

A: Yes. All three are identical in electrical and mechanical specifications, differing only in packaging format (Tape & Box vs. Bulk). They are interchangeable for component selection purposes.

Q: Why should I consider B41858C9337M000 over Nichicon parts?

A: B41858C9337M000 is Active status, whereas all Nichicon substitutes are Not For New Designs. For production continuity and long-term availability, EPCOS - TDK Electronics is the preferred choice.

Q: Can I use EEU-FC2A331S in place of EEU-FC2A331?

A: Yes, both are Panasonic FC series with identical electrical ratings and 5000-hour lifetime. EEU-FC2A331S has a larger diameter can and shorter height. Confirm PCB layout clearance before substitution.

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

A: This designation indicates the part is obsolete or in end-of-life status. Nichicon no longer recommends these parts for new circuit designs. Active status alternatives should be prioritized for new applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed meet ROHS3 compliance requirements.

Q: How do impedance differences affect substitution?

A: Impedance values range from 58 mOhms to 90 mOhms across the substitute parts. Lower impedance generally indicates better high-frequency performance. Verify ripple current and frequency response requirements for your specific application.

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