UKA1C331MPD1TD Equivalent & Substitute Parts

Part Overview

The UKA1C331MPD1TD 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 This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio.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 -55°C to 105°C with a rated lifetime of 2000 hours at 105°C, making it suitable for audio applications requiring stable capacitance in through-hole mounting configurations.

Identifying equivalent and substitute parts is necessary due to the product's obsolescence status and potential supply constraints. Alternative parts from both Nichicon's active series and other manufacturers provide equivalent electrical performance with improved availability and extended lifecycle support.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Mounting Type	Through Hole
Package	Radial, Can
Lead Spacing	0.138" (4.60 mm)
Physical Diameter	0.315" (8.00 mm)
Height (Seated Max)	0.512" (13.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UKA1C331MPD1TD is determined by strict equivalence across the following parameters:

Primary Equivalence Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 16 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±20% (matching tolerance)
Polarization: Polar (required for electrolytic type)
Mounting Type: Through Hole (required for PCB compatibility)
Package Configuration: Radial, Can (physical form factor)
Lead Spacing: 0.138" (4.60 mm) (PCB footprint compatibility)
Physical Dimensions: 0.315" Dia × 0.512" Height (board space constraints)

Secondary Considerations:

Lifetime @ 105°C: 2000 hours or greater (reliability enhancement acceptable)
Operating Temperature Range: -55°C to 105°C minimum (full range match or equivalent)
RoHS3 Compliance: Required for regulatory alignment

Parts meeting all primary criteria are classified as direct substitutes. Parts with identical electrical specifications but extended lifetime ratings or higher voltage ratings are classified as upgrades, offering improved performance margins without design modification.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Impedance	Product Status
UKA1C331MPD1TD	Nichicon	UKA	330 µF	16 V	±20%	2000 Hrs	—	Not For New Designs
UKA1E331MPD1TD	Nichicon	UKA	330 µF	25 V	±20%	2000 Hrs	—	Not For New Designs
UPA1C331MPD1TD	Nichicon	UPA	330 µF	16 V	±20%	3000 Hrs	90 mOhms	Active
UPA1E331MPD1TD	Nichicon	UPA	330 µF	25 V	±20%	3000 Hrs	90 mOhms	Active
UPS1C331MPD1TD	Nichicon	UPS	330 µF	16 V	±20%	2000 Hrs	280 mOhms	Not For New Designs
UPW1C331MPD1TA	Nichicon	UPW	330 µF	16 V	±20%	3000 Hrs	117 mOhms	Not For New Designs
UPW1C331MPD1TD	Nichicon	UPW	330 µF	16 V	±20%	3000 Hrs	117 mOhms	Not For New Designs
860080374011	Würth Elektronik	WCAP-ATLI	330 µF	16 V	±20%	3000 Hrs	80 mOhms	Active
860160374020	Würth Elektronik	WCAP-ATLL	330 µF	16 V	±20%	4000 Hrs	370 mOhms	Active
EEU-FC1C331BJ	Panasonic Electronic Components	FC	330 µF	16 V	±20%	2000 Hrs	117 mOhms	Active

Engineering Selection Recommendations

Direct Substitutes (Equivalent Electrical Performance):

UPA1C331MPD1TD and UPW1C331MPD1TD are direct substitutes from Nichicon's active product lines. Both maintain 330 µF capacitance at 16 V with ±20% tolerance and identical physical dimensions. UPA1C331MPD1TD offers extended 3000-hour lifetime with lower impedance (90 mOhms), while UPW1C331MPD1TD provides 3000-hour lifetime with moderate impedance (117 mOhms). Both are ROHS3 compliant and support through-hole mounting without PCB redesign.

Cross-Manufacturer Alternatives:

860080374011 (Würth Elektronik WCAP-ATLI series) provides equivalent 330 µF, 16 V performance with 3000-hour lifetime and superior impedance characteristics (80 mOhms). This part is Active status with full regulatory compliance.

860160374020 (Würth Elektronik WCAP-ATLL series) offers extended 4000-hour lifetime at 105°C, providing enhanced reliability margin for long-term applications. Impedance is higher (370 mOhms) but remains within acceptable parameters for audio and general-purpose circuits.

EEU-FC1C331BJ (Panasonic FC series) is an Active automotive-grade alternative rated to AEC-Q200 standards. It maintains 330 µF, 16 V specifications with 2000-hour lifetime and 117 mOhms impedance. This part is suitable for applications requiring automotive-level reliability.

Voltage Upgrade Options:

UKA1E331MPD1TD and UPA1E331MPD1TD provide 25 V rating with identical 330 µF capacitance. These are suitable for circuits where higher voltage margin is beneficial, though they require verification that PCB layout accommodates the same physical footprint.

Selection Basis:

For new designs, UPA1C331MPD1TD is recommended as the primary replacement, offering Active product status, extended lifetime, and Nichicon series continuity. For applications requiring automotive compliance, EEU-FC1C331BJ is the appropriate selection. For maximum reliability margin, 860160374020 provides the longest operational lifetime at rated temperature.

Frequently Asked Questions (FAQ)

Q: Can UPA1C331MPD1TD directly replace UKA1C331MPD1TD without PCB modification?

A: Yes. Both parts share identical physical dimensions (0.315" diameter, 0.512" height), lead spacing (0.138"), and radial through-hole configuration. No PCB layout changes are required. UPA1C331MPD1TD is an Active product with extended 3000-hour lifetime.

Q: What is the difference between 16 V and 25 V rated parts in this family?

A: The voltage rating indicates the maximum continuous DC voltage the capacitor can withstand. A 25 V part (UPA1E331MPD1TD) can operate safely in circuits rated up to 25 V, while a 16 V part (UPA1C331MPD1TD) is limited to 16 V maximum. Both maintain 330 µF capacitance. Selection depends on circuit voltage requirements; oversizing voltage rating provides safety margin but is not required if circuit voltage is confirmed at 16 V or below.

Q: Are Würth Elektronik parts compatible with Nichicon footprints?

A: Yes. 860080374011 and 860160374020 maintain identical lead spacing (0.138"), physical diameter (0.315"), and height (0.512") as the Nichicon UKA series. Through-hole mounting is compatible without PCB redesign. Both are ROHS3 compliant and suitable for direct substitution.

Q: What does "Not For New Designs" mean for UKA1C331MPD1TD?

A: This designation indicates the part has been superseded in the manufacturer's portfolio and is no longer recommended for new product development. Existing inventory may remain available, but long-term supply is not guaranteed. For new designs, Active-status alternatives such as UPA1C331MPD1TD or 860080374011 are recommended.

Q: How does impedance affect capacitor selection?

A: Impedance (measured in milliohms) affects high-frequency performance and ripple current handling. Lower impedance (80–90 mOhms) provides better performance at high frequencies and lower heat generation. Higher impedance (280–370 mOhms) is acceptable for audio and general-purpose applications but may limit performance in high-ripple-current circuits. Selection should match application requirements for ripple current handling.

Q: Is EEU-FC1C331BJ suitable for non-automotive applications?

A: Yes. EEU-FC1C331BJ meets AEC-Q200 automotive standards but is not restricted to automotive use. It is an Active product with 330 µF, 16 V specifications and can be used in any application requiring equivalent electrical performance. Automotive-grade components often provide enhanced reliability margins beneficial for demanding environments.

Q: Can I use a higher-lifetime part as a direct substitute?

A: Yes. Parts with extended lifetime ratings (3000 or 4000 hours versus 2000 hours) are direct substitutes. Extended lifetime indicates improved thermal stability and longer operational life under rated conditions. No circuit modifications are required, and the substitution provides enhanced reliability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message