UKW1C331MPD1TA Equivalent & Substitute Parts

Part Overview

The UKW1C331MPD1TA 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 This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. 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 performance in moderate thermal environments.

Identifying equivalent and substitute parts is necessary due to the product's obsolescence status and potential supply constraints. Equivalent alternatives maintain identical electrical and mechanical specifications, while upgraded substitutes offer enhanced performance characteristics such as extended lifetime ratings or improved temperature operating ranges.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.138" (4.60 mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.512" (13.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Parametric Equivalents maintain identical electrical specifications (330 µF, 16 V, ±20% tolerance) and mechanical form factor (0.315" diameter, 0.512" height, 4.60 mm lead spacing). These parts are interchangeable without circuit redesign.

Upgraded Substitutes retain the same capacitance value and tolerance but may feature:

Higher voltage ratings (25 V instead of 16 V)
Extended lifetime ratings (3000 or 5000 hours at elevated temperatures)
Wider operating temperature ranges (-55°C to 105°C)
Improved ripple current handling

All substitute parts maintain identical mechanical dimensions and through-hole mounting configuration, ensuring PCB compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Product Status	Ripple Current @ 120 Hz
UKW1C331MPD1TA	Nichicon	330 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	360 mA
UFW1C331MPD1TD	Nichicon	330 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	360 mA
UVR1C331MPD1TD	Nichicon	330 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Not For New Designs	370 mA
860010374011	Würth Elektronik	330 µF	16 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	407 mA
EKZE160ETC331MHB5D	Chemi-Con	330 µF	16 V	3000 Hrs @ 105°C	-40°C ~ 105°C	Active	380 mA
UPA1C331MPD1TA	Nichicon	330 µF	16 V	3000 Hrs @ 105°C	-55°C ~ 105°C	Active	409.5 mA
UPA1E331MPD1TA	Nichicon	330 µF	25 V	3000 Hrs @ 105°C	-55°C ~ 105°C	Active	409.5 mA
UTT1E331MPD1TA	Nichicon	330 µF	25 V	5000 Hrs @ 105°C	-40°C ~ 105°C	Active	178.8 mA
ESMG250ETC331MHB5D	Chemi-Con	330 µF	25 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	440 mA
ESMG250ETD331MHB5D	Chemi-Con	330 µF	25 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	440 mA

Engineering Selection Recommendations

Direct Parametric Equivalents (Same Electrical & Thermal Specifications):

UFW1C331MPD1TD and UVR1C331MPD1TD are parametric equivalents to UKW1C331MPD1TA, maintaining identical 330 µF capacitance, 16 V voltage rating, and 2000-hour lifetime at 85°C. Both are classified as Not For New Designs. These parts are suitable for direct replacement in existing designs where the original specifications are required.

Active Product Alternatives (16 V Rating):

860010374011 (Würth Elektronik WCAP-ATG8 series) is an active product offering identical electrical specifications with Active product status. This part provides supply continuity for 16 V, 330 µF applications.

EKZE160ETC331MHB5D (Chemi-Con KZE series) is an active product with enhanced thermal performance: 3000-hour lifetime at 105°C versus the original 2000 hours at 85°C, with extended operating temperature range to 105°C.

UPA1C331MPD1TA (Nichicon UPA series) is an active product with improved specifications: 3000-hour lifetime at 105°C, extended operating temperature range (-55°C to 105°C), and higher ripple current capability (409.5 mA @ 120 Hz).

Upgraded Alternatives (25 V Rating):

UPA1E331MPD1TA, UTT1E331MPD1TA, ESMG250ETC331MHB5D, and ESMG250ETD331MHB5D provide 25 V voltage rating with 330 µF capacitance. These parts are suitable for applications where circuit voltage margins require higher-rated components. UTT1E331MPD1TA offers the highest thermal rating at 5000 hours @ 105°C.

All substitute parts maintain ROHS3 compliance and identical mechanical form factor (0.315" diameter, 0.512" height, 4.60 mm lead spacing) for PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can UFW1C331MPD1TD replace UKW1C331MPD1TA directly?

A: Yes. UFW1C331MPD1TD is a parametric equivalent with identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), lifetime (2000 Hrs @ 85°C), and mechanical dimensions. Direct substitution is possible without circuit modification.

Q: What is the difference between UPA1C331MPD1TA and UKW1C331MPD1TA?

A: Both maintain 330 µF capacitance and 16 V rating. UPA1C331MPD1TA is an active product with enhanced thermal performance: 3000-hour lifetime at 105°C (versus 2000 hours at 85°C), extended operating temperature range (-55°C to 105°C), and higher ripple current (409.5 mA @ 120 Hz versus 360 mA @ 120 Hz). Mechanical form factor is identical.

Q: Can I use a 25 V rated part instead of 16 V?

A: Yes, if circuit design permits. Parts rated for 25 V (UPA1E331MPD1TA, UTT1E331MPD1TA, ESMG250ETC331MHB5D, ESMG250ETD331MHB5D) maintain 330 µF capacitance and identical mechanical dimensions. Higher voltage rating provides additional safety margin in applications where voltage stress is a concern. Verify circuit requirements before substitution.

Q: Why is UKW1C331MPD1TA marked as Not For New Designs?

A: This designation indicates the part has been superseded in the manufacturer's product line. Active alternatives such as UPA1C331MPD1TA, 860010374011, or EKZE160ETC331MHB5D are recommended for new circuit designs to ensure long-term supply availability and access to manufacturer support.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All listed substitute parts maintain identical mechanical specifications: 0.315" diameter (8.00 mm), 0.512" maximum seated height (13.00 mm), and 0.138" lead spacing (4.60 mm). Through-hole mounting configuration is consistent across all parts.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Packaging format affects supply and handling. Cut Tape (CT) is supplied in individual strips suitable for smaller quantities. Tape & Reel (TR) is supplied on continuous reels for automated assembly processes. Electrical and mechanical specifications are identical; packaging choice depends on production volume and assembly equipment.

Q: Which substitute offers the best thermal performance?

A: UTT1E331MPD1TA provides the highest thermal rating at 5000 hours @ 105°C with 25 V voltage rating. EKZE160ETC331MHB5D offers 3000 hours @ 105°C at 16 V rating. Selection depends on circuit voltage requirements and thermal environment specifications.

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