UPW1C331MPH Equivalent & Substitute Parts

Part Overview

The UPW1C331MPH is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making direct sourcing increasingly difficult. The part is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring polar electrolytic capacitance in through-hole configurations.

Due to its obsolete status, identifying functionally equivalent alternatives is essential for design continuity and production planning. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure seamless integration into existing circuit designs.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.138" (4.60 mm)
Diameter	0.315" (8.00 mm)
Height	0.453" (11.50 mm)
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the UPW1C331MPH is determined by strict equivalence across the following parameters:

Capacitance value: 330 µF (exact match required)
Voltage rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Package type: Radial, Can (exact match required)
Mounting type: Through Hole (exact match required)
Lead spacing: 0.138" (4.60 mm) (exact match required)
Physical dimensions: 0.315" Dia × 0.453" Height (exact match required)
Polarization: Polar (exact match required)

Parts meeting all these criteria are classified as direct substitutes. Variations in lifetime rating, ripple current specifications, or compliance certifications do not disqualify a part from substitution, provided all primary electrical and mechanical parameters remain identical.

Parameter Comparison

Parameter	UPW1C331MPH	UPW1C331MPD	EEU-FC1C331
Manufacturer	Nichicon	Nichicon	Panasonic Electronic Components
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temp.	3000 Hrs @ 105°C	3000 Hrs @ 105°C	2000 Hrs @ 105°C
Lead Spacing	0.138" (4.60 mm)	0.138" (4.60 mm)	0.138" (4.60 mm)
Diameter	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)
Height	0.453" (11.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)
Impedance	117 mOhms	117 mOhms	117 mOhms
Ripple Current @ 120 Hz	360.75 mA	360.75 mA	360.8 mA
Package Type	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Not For New Designs	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

UPW1C331MPD (Nichicon): This part is a direct electrical and mechanical equivalent to the UPW1C331MPH, maintaining identical capacitance, voltage rating, tolerance, and physical dimensions. The UPW1C331MPD carries ROHS3 compliance, whereas the original part is non-compliant. Product status is listed as "Not For New Designs," indicating limited future availability. This substitute is suitable for legacy system maintenance and repair applications where component continuity is required.

EEU-FC1C331 (Panasonic Electronic Components): This part meets all primary electrical and mechanical substitution criteria with identical capacitance, voltage rating, tolerance, lead spacing, and physical dimensions. The EEU-FC1C331 is classified as active, ensuring ongoing availability. It carries ROHS3 compliance and AEC-Q200 automotive qualification. The lifetime rating is 2000 hours at 105°C, compared to 3000 hours for the original part. This substitute is recommended for new designs and applications where extended component availability is prioritized.

Frequently Asked Questions (FAQ)

Q: Can UPW1C331MPD be used as a direct replacement for UPW1C331MPH?

A: Yes. Both parts share identical electrical specifications (330 µF, 16 V, ±20% tolerance) and mechanical dimensions (0.315" diameter, 0.453" height, 0.138" lead spacing). The primary difference is RoHS compliance status and product lifecycle classification. Electrical performance and PCB compatibility are equivalent.

Q: What is the difference between UPW1C331MPH and EEU-FC1C331?

A: Both parts are electrically and mechanically equivalent across all primary parameters. The EEU-FC1C331 has a rated lifetime of 2000 hours at 105°C versus 3000 hours for the UPW1C331MPH. The EEU-FC1C331 is manufactured by Panasonic and carries active product status with AEC-Q200 automotive qualification, whereas the UPW1C331MPH is obsolete.

Q: Are there any physical compatibility concerns when substituting these parts?

A: No. All three parts share identical lead spacing (0.138" / 4.60 mm), diameter (0.315" / 8.00 mm), and height (0.453" / 11.50 mm). PCB footprints and mounting holes are directly compatible without modification.

Q: Which substitute should be selected for new product designs?

A: The EEU-FC1C331 is recommended for new designs due to its active product status, ensuring long-term availability. It meets ROHS3 compliance and carries AEC-Q200 automotive qualification. The UPW1C331MPD is suitable for legacy system support where Nichicon sourcing is preferred.

Q: Does the 1000-hour lifetime difference between UPW1C331MPH and EEU-FC1C331 affect circuit performance?

A: Lifetime ratings indicate expected operational duration under specified conditions. Selection between these parts should be based on application requirements, expected service life, and environmental operating conditions. Both parts meet the electrical specifications required for the circuit function.

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