UHE1C331MPD Equivalent & Substitute Parts

Part Overview

The UHE1C331MPD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary to maintain supply chain continuity for existing applications and to identify active alternatives for new circuit designs.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Lead Spacing	0.138" (4.60mm)
Case Diameter	0.315" (8.00mm)
Height	0.453" (11.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UHE1C331MPD is determined by the following mandatory parameters:

Capacitance: 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)
Operating Temperature Range: -40°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.138" (4.60mm) or 0.197" (5.00mm) acceptable with PCB layout verification
Case Diameter: 0.315" (8.00mm) (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in lifetime rating, ripple current capacity, and impedance do not disqualify substitution but should be evaluated against application requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Height	Impedance	Product Status
UHE1C331MPD	Nichicon	330 µF	16 V	±20%	7000 Hrs	0.138" (4.60mm)	0.453" (11.50mm)	130 mOhms	Not For New Designs
UHD1C331MPD	Nichicon	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	72 mOhms	Not For New Designs
UHV1C331MPD	Nichicon	330 µF	16 V	±20%	6000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	59 mOhms	Not For New Designs
EEU-FM1C331	Panasonic Electronic Components	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	56 mOhms	Active
EEU-FM1C331B	Panasonic Electronic Components	330 µF	16 V	±20%	3000 Hrs	0.197" (5.00mm)	0.512" (13.00mm)	56 mOhms	Active
EEU-FM1C331BJ	Panasonic Electronic Components	330 µF	16 V	±20%	3000 Hrs	0.197" (5.00mm)	0.512" (13.00mm)	56 mOhms	Active
EKZE160ELL331MHB5D	Chemi-Con	330 µF	16 V	±20%	3000 Hrs	0.138" (4.60mm)	0.512" (13.00mm)	72 mOhms	Active

Engineering Selection Recommendations

For Existing Designs (Direct Replacement):

Select UHD1C331MPD or UHV1C331MPD for direct mechanical and electrical compatibility with the UHE1C331MPD. Both are Nichicon products with identical capacitance, voltage, tolerance, and lead spacing. UHV1C331MPD offers superior lifetime (6000 Hrs vs. 3000 Hrs) and lower impedance (59 mOhms vs. 72 mOhms), making it the preferred Nichicon alternative.

For New Designs (Active Product Status):

EEU-FM1C331, EEU-FM1C331B, EEU-FM1C331BJ (Panasonic), and EKZE160ELL331MHB5D (Chemi-Con) are all active products with full manufacturing support. Panasonic parts offer lower impedance (56 mOhms) and higher ripple current capacity. Lead spacing differs between EEU-FM1C331 (0.138", 4.60mm) and EEU-FM1C331B/BJ (0.197", 5.00mm); verify PCB layout compatibility before selection.

Compliance Considerations:

All substitute parts are ROHS3 compliant. Panasonic parts are REACH Unaffected; Nichicon and Chemi-Con parts are REACH Affected. Select based on supply chain and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use EEU-FM1C331B or EEU-FM1C331BJ as a direct replacement for UHE1C331MPD?

A: Electrical parameters are fully compatible. However, lead spacing differs: UHE1C331MPD uses 0.138" (4.60mm) spacing, while EEU-FM1C331B and EEU-FM1C331BJ use 0.197" (5.00mm) spacing. PCB layout must accommodate the wider lead spacing, or the part cannot be mounted without modification.

Q: What is the difference between UHD1C331MPD and UHV1C331MPD?

A: Both are Nichicon 330 µF, 16 V radial capacitors with identical electrical ratings. UHV1C331MPD has a longer lifetime (6000 Hrs vs. 3000 Hrs at 105°C) and lower impedance (59 mOhms vs. 72 mOhms). UHV1C331MPD is the superior choice for applications requiring extended operational life or lower ESR.

Q: Why do some substitutes have different heights?

A: UHE1C331MPD has a height of 0.453" (11.50mm), while most substitutes are 0.512" (13.00mm). This difference reflects different internal construction and does not affect electrical performance. Verify available PCB space before selection.

Q: Are Panasonic EEU-FM series parts suitable for long-term production?

A: Yes. EEU-FM1C331, EEU-FM1C331B, and EEU-FM1C331BJ are all Active products with full manufacturing support and ROHS3 compliance. They are suitable for new designs and long-term production commitments.

Q: What does "Not For New Designs" mean for the UHE1C331MPD?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new circuit designs. Existing inventory may still be available, but long-term supply cannot be guaranteed. Use active alternatives for new projects.

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