Equivalent & Substitute Parts for UPW1E331MPD

Part Overview

The UPW1E331MPD is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and identify functionally compatible alternatives that meet current production standards or offer enhanced performance characteristics.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00mm)
Diameter	0.394" (10.00mm)
Height	0.492" (12.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the UPW1E331MPD is determined by the following mandatory parameters:

Electrical equivalence: Capacitance (330 µF), voltage rating (25 V), and tolerance (±20%) must match exactly
Thermal performance: Lifetime rating at 105°C determines suitability for equivalent thermal stress conditions
Physical compatibility: Lead spacing (5.00mm), diameter (10.00mm), and height must accommodate PCB layout and mechanical constraints
Regulatory compliance: RoHS3 compliance and REACH status ensure environmental and regulatory alignment

Substitute parts are grouped into two categories:

Category 1: Nichicon Series Variants — Parts from Nichicon's UPJ, UPM, UPS, and UPW series that share identical electrical specifications but differ in lifetime ratings, impedance characteristics, or lead spacing configurations.

Category 2: Cross-Manufacturer Equivalents — Parts from Panasonic (EEU-FC series) and Chemi-Con (ELXZ series) that provide electrical and mechanical equivalence with potential enhancements in automotive qualification or thermal performance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Impedance	Product Status	Ratings
UPW1E331MPD	Nichicon	330 µF	25 V	5000 Hrs	5.00mm	10.00mm	12.50mm	90 mOhms	Not For New Designs	—
UPJ1E331MPD	Nichicon	330 µF	25 V	3000 Hrs	4.60mm	8.00mm	21.00mm	130 mOhms	Not For New Designs	—
UPJ1E331MPD6	Nichicon	330 µF	25 V	5000 Hrs	5.00mm	10.00mm	16.50mm	150 mOhms	Not For New Designs	—
UPM1E331MPD	Nichicon	330 µF	25 V	3000 Hrs	4.60mm	8.00mm	21.50mm	85 mOhms	Not For New Designs	AEC-Q200
UPM1E331MPD6	Nichicon	330 µF	25 V	5000 Hrs	5.00mm	10.00mm	17.00mm	95 mOhms	Not For New Designs	AEC-Q200
UPS1E331MPD	Nichicon	330 µF	25 V	2000 Hrs	5.00mm	10.00mm	14.00mm	190 mOhms	Not For New Designs	—
UPW1E331MPD6	Nichicon	330 µF	25 V	3000 Hrs	4.60mm	8.00mm	15.00mm	85 mOhms	Active	—
EEU-FC1E331	Panasonic	330 µF	25 V	3000 Hrs	5.00mm	10.00mm	12.50mm	90 mOhms	Active	AEC-Q200
ELXZ250ELL331MJC5S	Chemi-Con	330 µF	25 V	5000 Hrs	5.00mm	10.00mm	14.00mm	90 mOhms	Active	AEC-Q200
EEU-FC1E331B	Panasonic	330 µF	25 V	3000 Hrs	5.00mm	10.00mm	14.60mm	90 mOhms	Active	AEC-Q200
EEU-FC1E331L	Panasonic	330 µF	25 V	2000 Hrs	4.60mm	8.00mm	15.00mm	85 mOhms	Active	AEC-Q200

Engineering Selection Recommendations

Direct Mechanical and Electrical Equivalents (5.00mm Lead Spacing, 10.00mm Diameter)

For applications requiring identical PCB footprint and mechanical fit, the following parts provide direct substitution:

UPJ1E331MPD6 (Nichicon): Matches lead spacing and diameter with 5000 Hrs lifetime. Suitable for general-purpose applications where the Not For New Designs status is acceptable.
UPM1E331MPD6 (Nichicon): Matches lead spacing and diameter with 5000 Hrs lifetime and AEC-Q200 automotive qualification. Recommended for automotive applications requiring enhanced reliability.
EEU-FC1E331 (Panasonic): Matches lead spacing, diameter, and height with 3000 Hrs lifetime and AEC-Q200 qualification. Active product status provides long-term availability.
EEU-FC1E331B (Panasonic): Matches lead spacing and diameter with 3000 Hrs lifetime and AEC-Q200 qualification. Available in Cut Tape packaging for automated assembly.
ELXZ250ELL331MJC5S (Chemi-Con): Matches lead spacing and diameter with 5000 Hrs lifetime and AEC-Q200 qualification. Active product status ensures supply continuity.

Compact Footprint Alternatives (4.60mm Lead Spacing, 8.00mm Diameter)

For space-constrained designs where PCB layout permits reduced lead spacing:

UPW1E331MPD6 (Nichicon): Active product status with 3000 Hrs lifetime. Compact form factor with 85 mOhms impedance.
EEU-FC1E331L (Panasonic): Active product with AEC-Q200 qualification and 2000 Hrs lifetime. Compact dimensions with 85 mOhms impedance.

Lower Lifetime Alternatives (2000 Hrs @ 105°C)

For non-critical applications with reduced thermal stress requirements:

UPS1E331MPD (Nichicon): Matches lead spacing and diameter with 2000 Hrs lifetime. Higher impedance (190 mOhms) may affect ripple current performance.

Recommended Primary Substitutes

For new designs or long-term production: EEU-FC1E331 or ELXZ250ELL331MJC5S — both offer active product status, AEC-Q200 automotive qualification, and mechanical compatibility with the original UPW1E331MPD.

For automotive applications requiring 5000 Hrs lifetime: UPM1E331MPD6 or ELXZ250ELL331MJC5S.

Frequently Asked Questions (FAQ)

Q: Can UPJ1E331MPD6 replace UPW1E331MPD directly on the PCB?

A: Yes, mechanically and electrically. Both share 5.00mm lead spacing, 10.00mm diameter, and 330 µF / 25 V specifications. The UPJ1E331MPD6 provides identical 5000 Hrs lifetime at 105°C. Verify that the height difference (16.50mm vs. 12.50mm) does not conflict with component clearance constraints.

Q: What is the difference between EEU-FC1E331 and EEU-FC1E331B?

A: Both are Panasonic FC series parts with identical electrical and mechanical specifications. The primary difference is packaging: EEU-FC1E331 is supplied in Bulk, while EEU-FC1E331B is supplied in Cut Tape (CT). Height differs slightly (12.50mm vs. 14.60mm). Select based on assembly process requirements.

Q: Is ELXZ250ELL331MJC5S suitable for automotive applications?

A: Yes. ELXZ250ELL331MJC5S carries AEC-Q200 automotive qualification, 5000 Hrs lifetime at 105°C, and matches the lead spacing and diameter of UPW1E331MPD. It is an active product with confirmed supply availability.

Q: Why do some substitutes have different lead spacing (4.60mm vs. 5.00mm)?

A: Lead spacing determines PCB hole pattern and component footprint. Parts with 4.60mm spacing (UPJ1E331MPD, UPM1E331MPD, EEU-FC1E331L, UPW1E331MPD6) require different PCB layouts and cannot be used as direct drop-in replacements on boards designed for 5.00mm spacing. Select based on your PCB design constraints.

Q: What does "Not For New Designs" mean for the original UPW1E331MPD?

A: This status indicates the part has been discontinued or superseded by the manufacturer. While existing inventory may be available, Nichicon does not recommend using this part in new product designs. Substitutes with "Active" status (EEU-FC1E331, ELXZ250ELL331MJC5S, UPW1E331MPD6) are preferred for new designs.

Q: How does impedance affect capacitor selection?

A: Impedance (measured in mOhms) affects ripple current handling and high-frequency performance. Lower impedance (85–90 mOhms) provides better ripple current capacity. UPW1E331MPD has 90 mOhms impedance. Substitutes with 85–95 mOhms are functionally equivalent; those with 130–190 mOhms may reduce ripple current performance.

Q: Are all listed substitutes RoHS3 compliant?

A: Yes. All parts listed are ROHS3 Compliant. REACH status varies: most are REACH Unaffected; UPM series parts are REACH Affected. Verify REACH compliance requirements for your specific application and region.

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