UPW1E331MPH Equivalent & Substitute Parts

Part Overview

The UPW1E331MPH is a 330 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing maintenance, repair, and legacy system support. The part delivers 5000 hours of operational life at 105°C and is suitable for general-purpose applications requiring polar electrolytic capacitance.

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 (Max)	0.492" (12.50mm)
Impedance	90 mOhms

Substitute Part Grouping Explanation

Substitution of the UPW1E331MPH is determined by strict equivalence in the following parameters:

Electrical equivalence: Capacitance (330 µF), voltage rating (25 V), and tolerance (±20%) must match exactly
Thermal equivalence: Operating temperature range (-55°C ~ 105°C) must be maintained
Mechanical compatibility: Package type (radial, can), mounting type (through hole), and lead spacing must accommodate PCB layout constraints
Polarization: Polar configuration is mandatory

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes (Nichicon UPW Series): Parts UPW1E331MPD and UPW1E331MPD6 maintain identical electrical and mechanical specifications with variations in product status and lifetime ratings.

Cross-Manufacturer Equivalents (Panasonic FC Series): Parts EEU-FC1E331 and EEU-FC1E331L provide electrical and mechanical equivalence from an alternative manufacturer, with automotive-grade certifications (AEC-Q200).

Parameter Comparison

Parameter	UPW1E331MPH	UPW1E331MPD	UPW1E331MPD6	EEU-FC1E331	EEU-FC1E331L
Manufacturer	Nichicon	Nichicon	Nichicon	Panasonic	Panasonic
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	25 V	25 V	25 V	25 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ 105°C	5000 Hrs	5000 Hrs	3000 Hrs	3000 Hrs	2000 Hrs
Polarization	Polar	Polar	Polar	Polar	Polar
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.138" (4.60mm)	0.197" (5.00mm)	0.138" (4.60mm)
Diameter	0.394" (10.00mm)	0.394" (10.00mm)	0.315" (8.00mm)	0.394" (10.00mm)	0.315" (8.00mm)
Height (Max)	0.492" (12.50mm)	0.492" (12.50mm)	0.591" (15.00mm)	0.492" (12.50mm)	0.591" (15.00mm)
Impedance	90 mOhms	90 mOhms	85 mOhms	90 mOhms	85 mOhms
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

For direct replacement with identical form factor and lead spacing (0.197" / 5.00mm):

UPW1E331MPD is the primary Nichicon substitute, maintaining the original 5000-hour lifetime specification and identical mechanical dimensions. This part is classified as "Not For New Designs" but remains suitable for legacy system repairs where the original footprint must be preserved.

EEU-FC1E331 (Panasonic) provides cross-manufacturer equivalence with identical mechanical and electrical specifications, including AEC-Q200 automotive certification. This part is active and ROHS3 compliant, making it suitable for both repair and new design applications.

For applications permitting reduced form factor (0.138" / 4.60mm lead spacing):

UPW1E331MPD6 and EEU-FC1E331L offer compact alternatives with smaller diameter and increased height. These parts are active products with ROHS3 compliance. Note that UPW1E331MPD6 provides 3000-hour lifetime, while EEU-FC1E331L provides 2000-hour lifetime at 105°C, both reduced from the original 5000-hour specification.

For new design applications:

UPW1E331MPD6 and EEU-FC1E331 are recommended as active products. EEU-FC1E331 carries AEC-Q200 certification for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can UPW1E331MPD6 be used as a direct replacement for UPW1E331MPH?

A: UPW1E331MPD6 is electrically equivalent but differs mechanically. The lead spacing is 0.138" (4.60mm) versus the original 0.197" (5.00mm), and the diameter is 0.315" (8.00mm) versus 0.394" (10.00mm). PCB layout compatibility must be verified before substitution.

Q: What is the difference between EEU-FC1E331 and EEU-FC1E331L?

A: Both are Panasonic equivalents with identical electrical and mechanical specifications. The primary difference is lifetime: EEU-FC1E331 provides 3000 hours at 105°C, while EEU-FC1E331L provides 2000 hours at 105°C. Lead spacing also differs: EEU-FC1E331 maintains 0.197" (5.00mm), while EEU-FC1E331L uses 0.138" (4.60mm).

Q: Is the UPW1E331MPH RoHS compliant?

A: No, UPW1E331MPH is RoHS non-compliant. All substitute parts listed (UPW1E331MPD, UPW1E331MPD6, EEU-FC1E331, EEU-FC1E331L) are ROHS3 compliant.

Q: Can I use a substitute with reduced lifetime rating?

A: Substitution with reduced lifetime is permissible only if the application does not require the original 5000-hour specification. System reliability analysis must account for the reduced operational life at 105°C.

Q: Are the Panasonic FC series parts suitable for automotive applications?

A: Yes, EEU-FC1E331 and EEU-FC1E331L carry AEC-Q200 certification and are rated for automotive applications.

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