Equivalent & Substitute Parts for UKL1V331MHD1TO

Part Overview

The UKL1V331MHD1TO is a 330 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. 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 general-purpose applications requiring moderate voltage and capacitance ratings.

Due to its obsolescence status, equivalent and substitute parts with improved specifications, extended lifetimes, or active product status are necessary for ongoing production and new design implementations.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Size / Dimension	0.492" Dia (12.50 mm)
Height - Seated (Max)	0.866" (22.00 mm)
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UKL1V331MHD1TO is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Capacitance: 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)
Lead Spacing: 0.197" (5.00 mm) (exact match required)

Allowable Upgrade Parameters:

Voltage Rating: 35 V or higher (higher voltage ratings provide backward compatibility)
Operating Temperature Range: Equal to or wider than -40°C ~ 85°C
Lifetime @ Temperature: Equal to or greater than 2000 Hrs @ 85°C
Physical Dimensions: Equivalent or slightly larger (within PCB layout constraints)

Substitute parts are grouped into three categories:

Category 1: Nichicon Upgrades (Same Manufacturer, Enhanced Specifications)

UBW1H331MHD1TO: 50 V rating, 3000 Hrs @ 135°C, Active status
UKL1H331MHD1TO: 50 V rating, 2000 Hrs @ 85°C, Not For New Designs
UPS1J331MHD1TO: 63 V rating, 3000 Hrs @ 105°C, Not For New Designs
UPW1J331MHD1TO: 63 V rating, 7000 Hrs @ 105°C, Not For New Designs

Category 2: Würth Elektronik Direct Equivalents (Different Manufacturer, Comparable Specifications)

860130578007: 35 V rating, 2000 Hrs @ 125°C, Active status
860130678009: 50 V rating, 2000 Hrs @ 125°C, Active status
860020778020: 63 V rating, 2000 Hrs @ 105°C, Active status
860160678029: 50 V rating, 10000 Hrs @ 105°C, Active status
860240578009: 35 V rating, 10000 Hrs @ 105°C, Active status

Category 3: Panasonic Upgrades (Different Manufacturer, Enhanced Specifications)

EEU-EB1J331B: 63 V rating, 10000 Hrs @ 105°C, Active status

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Operating Temp Range	Lifetime @ Temp	Lead Spacing	Size / Dimension	Height (Max)	Product Status	RoHS Status
UKL1V331MHD1TO	Nichicon	330 µF	35 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
UBW1H331MHD1TO	Nichicon	330 µF	50 V	±20%	-55°C ~ 135°C	3000 Hrs @ 135°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant
UKL1H331MHD1TO	Nichicon	330 µF	50 V	±20%	-40°C ~ 85°C	2000 Hrs @ 85°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
UPS1J331MHD1TO	Nichicon	330 µF	63 V	±20%	-55°C ~ 105°C	3000 Hrs @ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
UPW1J331MHD1TO	Nichicon	330 µF	63 V	±20%	-55°C ~ 105°C	7000 Hrs @ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Not For New Designs	ROHS3 Compliant
860130578007	Würth Elektronik	330 µF	35 V	±20%	-40°C ~ 125°C	2000 Hrs @ 125°C	0.197" (5.00 mm)	0.512" Dia (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
860130678009	Würth Elektronik	330 µF	50 V	±20%	-40°C ~ 125°C	2000 Hrs @ 125°C	0.197" (5.00 mm)	0.512" Dia (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
860020778020	Würth Elektronik	330 µF	63 V	±20%	-40°C ~ 105°C	2000 Hrs @ 105°C	0.197" (5.00 mm)	0.512" Dia (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
860160678029	Würth Elektronik	330 µF	50 V	±20%	-55°C ~ 105°C	10000 Hrs @ 105°C	0.197" (5.00 mm)	0.512" Dia (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
860240578009	Würth Elektronik	330 µF	35 V	±20%	-40°C ~ 105°C	10000 Hrs @ 105°C	0.197" (5.00 mm)	0.512" Dia (13.00 mm)	0.846" (21.50 mm)	Active	ROHS3 Compliant
EEU-EB1J331B	Panasonic Electronic Components	330 µF	63 V	±20%	-40°C ~ 105°C	10000 Hrs @ 105°C	0.197" (5.00 mm)	0.492" Dia (12.50 mm)	0.866" (22.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating, 35 V):

860240578009 (Würth Elektronik WCAP-AT1H series) is the primary recommendation. This part maintains the 35 V voltage rating, provides identical lead spacing and mechanical compatibility, and offers Active product status with extended lifetime of 10000 Hrs @ 105°C. All parts are ROHS3 compliant.

860130578007 (Würth Elektronik WCAP-ATET series) provides an alternative with Active status and equivalent 35 V rating, though with slightly larger physical dimensions (0.512" Dia vs. 0.492" Dia).

For Voltage Upgrade (50 V Rating):

860160678029 (Würth Elektronik WCAP-ATLL series) offers the highest performance upgrade with 50 V rating, Active status, and 10000 Hrs @ 105°C lifetime. This part provides superior reliability margin and extended operational life.

860130678009 (Würth Elektronik WCAP-ATET series) provides Active status with 50 V rating and 2000 Hrs @ 125°C lifetime, suitable for applications requiring higher voltage tolerance.

UBW1H331MHD1TO (Nichicon UBW series) offers Active status with 50 V rating and extended temperature range (-55°C ~ 135°C), providing the widest operational envelope among Nichicon options.

For Maximum Voltage Upgrade (63 V Rating):

EEU-EB1J331B (Panasonic EB-A series) provides Active status with 63 V rating and 10000 Hrs @ 105°C lifetime, maintaining original physical dimensions (0.492" Dia, 0.866" height).

860020778020 (Würth Elektronik WCAP-ATG5 series) offers Active status with 63 V rating and 2000 Hrs @ 105°C lifetime.

UPW1J331MHD1TO (Nichicon UPW series) provides the highest lifetime rating at 7000 Hrs @ 105°C with 63 V rating, though classified as Not For New Designs.

All substitute parts maintain ROHS3 compliance and identical capacitance and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute?

A: Yes. A capacitor with a higher voltage rating (50 V or 63 V) is electrically compatible with a 35 V application. The higher voltage rating provides additional safety margin and does not affect circuit operation. Physical dimensions and lead spacing must remain compatible with PCB layout.

Q: What is the difference between "Active" and "Not For New Designs" product status?

A: "Active" status indicates the manufacturer continues production and supports the part for new designs. "Not For New Designs" indicates the part is in end-of-life phase and may have limited availability. For new production, Active status parts are preferred.

Q: Are there physical dimension differences between substitute parts?

A: Yes. Nichicon parts maintain 0.492" diameter and 0.866" height. Würth Elektronik parts are slightly larger at 0.512" diameter and 0.846" height. Panasonic EEU-EB1J331B matches Nichicon dimensions. Verify PCB layout constraints before selection.

Q: What does the ±20% tolerance mean?

A: The capacitance value may vary ±20% from the nominal 330 µF specification. All substitute parts maintain this tolerance, ensuring equivalent performance in applications designed for the original part.

Q: Why do some parts have different lifetime ratings?

A: Lifetime ratings depend on operating temperature and capacitor design. Parts rated for higher temperatures or with enhanced internal construction provide longer operational life. Selection depends on application temperature requirements and desired service life.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original UKL1V331MHD1TO.

Q: Can I mix different manufacturers in the same circuit?

A: Yes. All substitute parts meet identical electrical specifications (330 µF, ±20%, polar, radial configuration). Different manufacturers can be used interchangeably provided voltage rating, lead spacing, and physical dimensions are compatible with circuit design.

Q: What is the significance of impedance values listed for some parts?

A: Impedance values indicate equivalent series resistance (ESR) characteristics. Lower impedance values (70-120 mOhms) indicate better high-frequency performance. This parameter is provided for reference but does not affect basic substitution compatibility for general-purpose applications.

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