UFW1C331MPD1TA Equivalent & Substitute Parts

Part Overview

The UFW1C331MPD1TA is a 330 µF, 16 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the product lifecycle. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, making it suitable for audio applications requiring stable capacitance in moderate thermal environments.

Equivalent and substitute parts are necessary when the original UFW1C331MPD1TA becomes unavailable or when design requirements demand improved performance characteristics such as extended operational lifetime, higher temperature ratings, or enhanced ripple current handling.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UFW1C331MPD1TA is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance value: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Package type: Radial, Can (exact match required)
Mounting type: Through Hole (exact match required)
Physical dimensions: 0.315" Dia (8.00mm) and 0.512" (13.00mm) height (exact match required)

Secondary Compatibility Parameters:

Voltage rating: 16 V or higher
Operating temperature range: Must encompass or exceed -40°C ~ 85°C
Lead spacing: Acceptable variations within PCB layout constraints

Substitute parts are grouped into two categories: direct equivalents maintaining identical voltage ratings and enhanced alternatives offering higher voltage ratings, extended lifetime ratings, or improved temperature performance while maintaining physical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Product Status
UFW1C331MPD1TA	Nichicon	330 µF	16 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	Not For New Designs
UPA1C331MPD1TA	Nichicon	330 µF	16 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.138" (4.60mm)	Active
UPA1E331MPD1TA	Nichicon	330 µF	25 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.138" (4.60mm)	Active
UTT1E331MPD1TA	Nichicon	330 µF	25 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	Active
UVR1C331MPD1TA	Nichicon	330 µF	16 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	Not For New Designs
EKZE160ETC331MHB5D	Chemi-Con	330 µF	16 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	Active
ESMG250ETC331MHB5D	Chemi-Con	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	Active
ESMG250ETD331MHB5D	Chemi-Con	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	Active

Engineering Selection Recommendations

Direct Voltage Equivalent (16 V Rating):

UPA1C331MPD1TA and EKZE160ETC331MHB5D maintain the 16 V voltage rating of the original UFW1C331MPD1TA while offering extended lifetime ratings (3000 hours at 105°C versus 2000 hours at 85°C). Both parts are Active status products, making them suitable for new designs. UPA1C331MPD1TA is manufactured by Nichicon and maintains series continuity. EKZE160ETC331MHB5D is manufactured by Chemi-Con and provides equivalent electrical performance with improved thermal stability.

Enhanced Voltage Rating (25 V Rating):

UPA1E331MPD1TA, UTT1E331MPD1TA, ESMG250ETC331MHB5D, and ESMG250ETD331MHB5D provide 25 V voltage ratings, offering additional design margin in applications where voltage stress reduction is beneficial. UTT1E331MPD1TA delivers the highest lifetime rating at 5000 hours at 105°C and is classified as Active status. UPA1E331MPD1TA provides 3000 hours at 105°C with Active status. The Chemi-Con alternatives (ESMG250ETC331MHB5D and ESMG250ETD331MHB5D) maintain 2000 hours at 85°C performance with Active status.

Mechanical Compatibility Consideration:

Lead spacing differs between substitute options. The original UFW1C331MPD1TA features 0.197" (5.00mm) lead spacing. Most substitute parts feature 0.138" (4.60mm) lead spacing. UVR1C331MPD1TA maintains 0.197" (5.00mm) spacing but carries Not For New Designs status. PCB layout verification is required when substituting parts with different lead spacing.

Compliance Status:

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification consistent with the original part. Selection should prioritize Active status products for new designs.

Frequently Asked Questions (FAQ)

Q: Can UPA1C331MPD1TA directly replace UFW1C331MPD1TA in existing designs?

A: UPA1C331MPD1TA is electrically compatible, maintaining 330 µF capacitance, ±20% tolerance, 16 V rating, and identical physical dimensions (0.315" Dia, 0.512" height). However, lead spacing differs (0.138" versus 0.197"), requiring PCB layout verification before substitution.

Q: What is the advantage of selecting a 25 V rated substitute over a 16 V equivalent?

A: 25 V rated substitutes (UPA1E331MPD1TA, UTT1E331MPD1TA, ESMG250ETC331MHB5D, ESMG250ETD331MHB5D) provide additional voltage margin in the circuit, reducing stress on the capacitor and potentially extending operational life in applications subject to voltage transients or ripple variations.

Q: Why does UTT1E331MPD1TA have a higher lifetime rating than other substitutes?

A: UTT1E331MPD1TA is rated for 5000 hours at 105°C, compared to 3000 hours at 105°C for UPA1E331MPD1TA and 2000 hours at 85°C for ESMG alternatives. This extended rating reflects the UTT series design specifications and thermal performance characteristics.

Q: Are Nichicon and Chemi-Con substitutes interchangeable?

A: Yes, within the specified electrical and mechanical parameters. EKZE160ETC331MHB5D (Chemi-Con) and UPA1C331MPD1TA (Nichicon) both provide 330 µF, 16 V, 3000 hours at 105°C performance with identical physical dimensions. Selection may depend on supply chain availability and procurement preferences.

Q: What does "Not For New Designs" status mean for UFW1C331MPD1TA and UVR1C331MPD1TA?

A: This status indicates the product has been superseded in the manufacturer's lifecycle. While existing inventory may be available, these parts should not be selected for new circuit designs. Active status substitutes are recommended for new applications.

Q: Does lead spacing affect electrical performance?

A: Lead spacing does not affect electrical performance but impacts PCB layout compatibility. The 0.138" (4.60mm) spacing of most substitutes differs from the original 0.197" (5.00mm) spacing. PCB redesign or adapter solutions may be required for direct board-level substitution.

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