UKA1V331MPD Equivalent & Substitute Parts

Part Overview

The UKA1V331MPD 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 This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Finding equivalent or substitute parts is necessary for maintenance, repair, and legacy system support where original stock is unavailable or depleted.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Polarization	Polar
Operating Temperature Range	-55°C to 105°C
Lifetime @ 105°C	2000 Hrs
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UKA1V331MPD is determined by strict equivalence in the following parameters:

Capacitance Value: 330 µF (exact match required)
Voltage Rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Package Configuration: Radial, Can with 0.197" (5.00 mm) lead spacing
Case Diameter: 0.394" (10.00 mm)
Mounting Type: Through Hole
Polarization: Polar
Operating Temperature Range: -55°C to 105°C minimum
RoHS Compliance: ROHS3 Compliant

All substitute parts listed meet these core electrical and mechanical parameters. Variations in lifetime rating, ripple current specifications, and series designation do not affect functional interchangeability in applications where the UKA1V331MPD was originally specified.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Dia	Height (Max)	Lead Spacing	Product Status
UKA1V331MPD	Nichicon	UKA	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Not For New Designs
UVY1V331MPD	Nichicon	UVY	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Not For New Designs
ECA-1VHG331	Panasonic Electronic Components	NHG-A	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.531" (14.60 mm)	0.197" (5.00 mm)	Active
35PX330MEFC10X12.5	Rubycon	PX	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Active
EEU-HD1V331	Panasonic Electronic Components	HD	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Active
EKMQ350ELL331MJC5S	Chemi-Con	KMQ	330 µF	35 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Active
ELZA350ELL331MJC5S	Chemi-Con	LZA	330 µF	35 V	±20%	4000 Hrs	0.394" (10.00 mm)	0.551" (14.00 mm)	0.197" (5.00 mm)	Active

Engineering Selection Recommendations

Active Product Status: ECA-1VHG331, 35PX330MEFC10X12.5, EEU-HD1V331, EKMQ350ELL331MJC5S, and ELZA350ELL331MJC5S are all classified as Active products, making them suitable for new designs and long-term availability. UVY1V331MPD shares the same "Not For New Designs" status as the UKA1V331MPD.

Compliance & Certifications: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. ELZA350ELL331MJC5S carries AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade components.

Lifetime Consideration: ELZA350ELL331MJC5S offers extended lifetime of 4000 Hrs @ 105°C compared to the standard 2000 Hrs specification, providing enhanced reliability for demanding applications.

Mechanical Fit: All parts maintain identical lead spacing (0.197" / 5.00 mm) and case diameter (0.394" / 10.00 mm). Height variations are minimal (0.531" to 0.551"), with ECA-1VHG331 being slightly shorter at 0.531" maximum seated height.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for UKA1V331MPD?

A: Yes. All listed substitute parts meet the core electrical and mechanical specifications: 330 µF capacitance, 35 V voltage rating, ±20% tolerance, radial through-hole package with 5.00 mm lead spacing, and 10.00 mm case diameter. Physical installation and electrical performance are equivalent.

Q: What is the difference between parts marked "Active" and "Not For New Designs"?

A: "Active" products are currently manufactured and supported by the supplier, ensuring long-term availability and supply chain stability. "Not For New Designs" indicates the product has been superseded and may have limited stock. For new applications, select from Active products: ECA-1VHG331, 35PX330MEFC10X12.5, EEU-HD1V331, EKMQ350ELL331MJC5S, or ELZA350ELL331MJC5S.

Q: Does the height difference between ECA-1VHG331 (0.531") and other parts (0..551") affect compatibility?

A: The 0.020" (0.50 mm) height difference is within typical PCB design tolerances for through-hole components. Verify clearance in your specific application, particularly if space constraints exist above the component.

Q: Why does ELZA350ELL331MJC5S have a higher lifetime rating?

A: ELZA350ELL331MJC5S is rated for 4000 Hrs @ 105°C versus the standard 2000 Hrs. This extended lifetime is a design characteristic of the LZA series and does not affect interchangeability. It provides enhanced reliability for applications with demanding thermal or operational requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: Which substitute part should I choose for automotive applications?

A: ELZA350ELL331MJC5S carries AEC-Q200 automotive qualification and is the appropriate choice for automotive-grade requirements. It also provides extended 4000 Hrs @ 105°C lifetime rating.

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