Equivalent & Substitute Parts for UPW2A331MHD

Part Overview

The Nichicon UPW2A331MHD is a 330 µF, 100 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. The UPW series offers 8000 hours lifetime at 105°C, making it suitable for general-purpose applications requiring extended operational reliability. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and supply chain continuity.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ 105°C	8000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UPW2A331MHD is determined by strict electrical and mechanical compatibility criteria:

Electrical Parameters (Must Match):

Capacitance: 330 µF
Voltage Rating: 100 V
Tolerance: ±20%
Polarization: Polar
Operating Temperature Range: -55°C ~ 105°C

Mechanical Parameters (Must Match):

Lead Spacing: 0.295" (7.50 mm)
Mounting Type: Through Hole
Package Type: Radial, Can

Allowable Variations:

Lifetime @ 105°C: May differ (3000 Hrs to 8000 Hrs acceptable)
Physical Dimensions (Diameter, Height): Variations permitted within PCB layout constraints
Impedance: Variations permitted based on series design
Ripple Current Ratings: Variations permitted based on application requirements
Manufacturer: Different manufacturers acceptable if electrical and mechanical parameters align
Product Status: Active or Not For New Designs both acceptable
Certifications (AEC-Q200): Additional certifications acceptable

Substitute parts are grouped by manufacturer and series while maintaining full electrical and mechanical compatibility with the UPW2A331MHD.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Size Dia	Height (Max)	Impedance	Product Status	RoHS
UPW2A331MHD	Nichicon	UPW	330 µF	100 V	±20%	8000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.984" (25.00 mm)	90 mOhms	Not For New Designs	ROHS3
UPJ2A331MHD	Nichicon	UPJ	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	62 mOhms	Not For New Designs	ROHS3
UPJ2A331MHD6	Nichicon	UPJ	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.043" (26.50 mm)	70 mOhms	Not For New Designs	ROHS3
UPM2A331MHD6	Nichicon	UPM	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.063" (27.00 mm)	70 mOhms	Not For New Designs	ROHS3
UPS2A331MHD	Nichicon	UPS	330 µF	100 V	±20%	3000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	90 mOhms	Not For New Designs	ROHS3
EEU-FC2A331	Panasonic Electronic Components	FC	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	1.240" (31.50 mm)	62 mOhms	Active	ROHS3
EEU-FC2A331S	Panasonic Electronic Components	FC	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	0.984" (25.00 mm)	70 mOhms	Active	ROHS3
EEU-FC2A331SB	Panasonic Electronic Components	FC	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50 mm)	0.709" (18.00 mm)	1.063" (27.00 mm)	70 mOhms	Active	ROHS3

Engineering Selection Recommendations

Nichicon UPW Series Substitutes (Same Manufacturer): The UPJ2A331MHD, UPJ2A331MHD6, UPM2A331MHD6, and UPS2A331MHD are direct Nichicon alternatives. All maintain identical electrical specifications (330 µF, 100 V, ±20%, -55°C ~ 105°C) and lead spacing (7.50 mm). Selection among these depends on PCB layout constraints and lifetime requirements. The UPM2A331MHD6 includes AEC-Q200 automotive qualification, suitable for automotive applications.

Panasonic EEU-FC Series Substitutes (Cross-Manufacturer): The EEU-FC2A331, EEU-FC2A331S, and EEU-FC2A331SB are Panasonic equivalents with identical electrical specifications and lead spacing. All three carry Active product status and AEC-Q200 automotive qualification. These parts are suitable for new designs and legacy system updates. Physical dimensions vary; verify PCB layout compatibility before selection.

Product Status Consideration: Nichicon UPW, UPJ, UPM, and UPS series parts are classified as Not For New Designs. Panasonic EEU-FC series parts are Active and recommended for new design implementations. For legacy system maintenance, Nichicon parts remain functionally equivalent. For new designs, Panasonic EEU-FC series provides continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can I substitute UPW2A331MHD with any of the listed parts? A: Yes, all listed parts are electrically and mechanically compatible. They share identical capacitance (330 µF), voltage rating (100 V), tolerance (±20%), operating temperature range (-55°C ~ 105°C), and lead spacing (7.50 mm). Verify physical dimensions fit your PCB layout before installation.

Q: What is the difference between Nichicon and Panasonic substitutes? A: Nichicon substitutes (UPJ, UPM, UPS series) are Not For New Designs. Panasonic substitutes (EEU-FC series) are Active products with continued manufacturer support. Both meet identical electrical and mechanical requirements. For new designs, Panasonic EEU-FC series is preferred.

Q: Does lifetime at 105°C affect substitution compatibility? A: Lifetime variations (3000 Hrs to 8000 Hrs) do not prevent substitution. All parts meet the same electrical and mechanical criteria. Lifetime selection depends on application requirements. Higher lifetime ratings provide extended operational reliability in high-temperature environments.

Q: Are there packaging differences between substitutes? A: Most substitutes are supplied in Bulk packaging. EEU-FC2A331SB is supplied in Cut Tape (CT) packaging. Packaging affects procurement and assembly processes but does not affect electrical or mechanical compatibility.

Q: Which substitute is best for automotive applications? A: UPM2A331MHD6 and all Panasonic EEU-FC series parts (EEU-FC2A331, EEU-FC2A331S, EEU-FC2A331SB) carry AEC-Q200 automotive qualification. These parts are suitable for automotive system implementations.

Q: Can I use EEU-FC2A331S instead of UPW2A331MHD in existing designs? A: Yes. EEU-FC2A331S is electrically identical and mechanically compatible. Physical dimensions differ: 0.709" diameter (18.00 mm) versus 0.630" (16.00 mm), and 0.984" height (25.00 mm) versus 0.984" (25.00 mm). Verify PCB layout accommodates the larger diameter before substitution.

Q: What does ROHS3 compliance mean? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. All listed parts are ROHS3 compliant, ensuring environmental and regulatory compliance across all substitutes.

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