UKL1C331MPDANATD Equivalent & Substitute Parts

Part Overview

The UKL1C331MPDANATD is a 330 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This part is classified as Not For New Designs, indicating it has been superseded in Nichicon's product line. Finding equivalent or substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this capacitor remains in service or where design flexibility permits voltage and lifetime upgrades.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 105°C
Lifetime @ Temperature	1000 Hrs @ 105°C

Substitute Part Grouping Explanation

Substitution for the UKL1C331MPDANATD is determined by the following criteria:

Mandatory Parameters (Must Match):

Capacitance: 330 µF
Tolerance: ±20%
Polarization: Polar
Package Type: Radial, Can
Lead Spacing: 0.197" (5.00 mm)
Case Diameter: 0.394" (10.00 mm)
Mounting Type: Through Hole

Allowable Variations (Substitution Permitted):

Voltage Rating: May be equal to or higher than 16 V
Lifetime @ Temperature: May be equal to or higher than 1000 Hrs @ 105°C
Operating Temperature Range: May be equal to or wider than -40°C ~ 105°C
Height: Minor variations acceptable within mechanical constraints
Ripple Current: Higher values acceptable
Impedance: Lower values acceptable

All substitute parts listed maintain identical capacitance, tolerance, polarization, and footprint characteristics while offering improved voltage ratings, extended lifetimes, or enhanced thermal performance.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Height (Max)	Product Status	RoHS Status
UKL1C331MPDANATD	Nichicon	330 µF	16 V	±20%	1000 Hrs @ 105°C	-40°C ~ 105°C	0.689" (17.50 mm)	Not For New Designs	ROHS3 Compliant
UBT1E331MPD8TD	Nichicon	330 µF	25 V	±20%	5000 Hrs @ 125°C	-40°C ~ 125°C	0.709" (18.00 mm)	Active	ROHS3 Compliant
EKMG500ETD331MJ16S	Chemi-Con	330 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.689" (17.50 mm)	Active	ROHS3 Compliant
ELXV250ETD331MJ16S	Chemi-Con	330 µF	25 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.689" (17.50 mm)	Active	ROHS3 Compliant
ELXY250ETD331MJ16S	Chemi-Con	330 µF	25 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.689" (17.50 mm)	Active	ROHS3 Compliant
ELXZ350ETD331MJ16S	Chemi-Con	330 µF	35 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.689" (17.50 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating): No substitute parts maintain the exact 16 V rating. The closest voltage-matched alternatives are the 25 V rated parts, which provide voltage margin above the original specification.

For Active Product Status: All substitute parts listed carry Active product status, ensuring ongoing availability and manufacturing support. The original UKL1C331MPDANATD is Not For New Designs and should be replaced in new designs with an Active alternative.

For Compliance: All substitute parts are ROHS3 Compliant and maintain compatibility with existing RoHS requirements. Chemi-Con parts (ELXV, ELXY, ELXZ series) carry AEC-Q200 automotive qualification ratings, providing additional reliability assurance for demanding applications.

For Extended Lifetime: UBT1E331MPD8TD, ELXY250ETD331MJ16S, and ELXZ350ETD331MJ16S offer 5000 Hrs @ 105°C or higher, compared to the original 1000 Hrs @ 105°C, providing significantly extended service life.

For Expanded Temperature Range: Chemi-Con and Nichicon UBT series parts extend the lower operating temperature to -55°C or -40°C with upper limits to 125°C, accommodating wider environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V or 50 V rated capacitor in place of the 16 V UKL1C331MPDANATD? A: Yes. Higher voltage ratings are acceptable substitutes. A capacitor rated for 25 V or 50 V will function correctly in a 16 V circuit, as the voltage rating represents the maximum safe operating voltage, not the operating voltage itself.

Q: What is the significance of the lifetime rating difference between 1000 Hrs @ 105°C and 5000 Hrs @ 105°C? A: Lifetime rating indicates the expected operational duration at the specified temperature before capacitance degradation reaches 80% of the initial value. A 5000 Hrs rating provides five times longer service life under identical thermal stress, reducing replacement frequency in long-term applications.

Q: Are the height differences between substitute parts critical? A: The UKL1C331MPDANATD has a maximum seated height of 0.689" (17.50 mm). The UBT1E331MPD8TD is 0.709" (18.00 mm), a 0.020" (0.50 mm) increase. This minor difference is acceptable in most through-hole PCB layouts but should be verified against specific board clearance constraints.

Q: What does AEC-Q200 qualification mean? A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts carrying this rating (ELXV, ELXY, ELXZ series) have undergone rigorous testing for automotive applications and provide enhanced reliability assurance for mission-critical systems.

Q: Can I substitute a Chemi-Con part for a Nichicon part? A: Yes. Both manufacturers produce equivalent 330 µF aluminum electrolytic capacitors with identical capacitance, tolerance, polarization, and footprint. Selection between manufacturers should be based on product status, availability, lifetime requirements, and application-specific certifications.

Q: Which substitute offers the best overall upgrade path? A: Selection depends on application requirements. UBT1E331MPD8TD provides Nichicon continuity with extended lifetime and voltage margin. ELXY250ETD331MJ16S and ELXZ350ETD331MJ16S offer AEC-Q200 automotive qualification with extended lifetimes and wider temperature ranges.

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