UKW2A331MHD1TO Equivalent & Substitute Parts

Part Overview

The UKW2A331MHD1TO is a 330 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is designed for audio applications. The part carries a "Not For New Designs" status, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitutes must maintain identical electrical specifications and mechanical compatibility to ensure direct board-level replacement without circuit redesign.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)
Height (Seated Max)	1.063" (27.00 mm)
Mounting Type	Through Hole Radial
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UKW2A331MHD1TO is determined by strict equivalence across the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime: 2000 Hrs @ 85°C (exact match required)
Operating Temperature: -40°C ~ 85°C (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Case Diameter: 0.492" (12.50 mm) (exact match required)
Height: 1.063" (27.00 mm) (exact match required)
Mounting Type: Through Hole Radial (exact match required)
Package Type: Radial, Can (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)

All substitute parts listed below meet these criteria and are therefore direct functional and mechanical equivalents suitable for board-level replacement.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 85°C	Operating Temp	Lead Spacing	Case Dia	Height	Product Status	Inventory
UKW2A331MHD1TO	Nichicon	UKW	330 µF	100 V	±20%	2000 Hrs	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs	898 Pcs
UVK2A331MHD1TO	Nichicon	UVK	330 µF	100 V	±20%	2000 Hrs	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs	1110 Pcs
UVR2A331MHD1TO	Nichicon	UVR	330 µF	100 V	±20%	2000 Hrs	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs	1421 Pcs
UFW2A331MHD1TO	Nichicon	UFW	330 µF	100 V	±20%	2000 Hrs	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Not For New Designs	1282 Pcs
ECA-2AM331B	Panasonic Electronic Components	M-A	330 µF	100 V	±20%	2000 Hrs	-40°C ~ 85°C	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Active	1080 Pcs

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the UKW2A331MHD1TO and are suitable for direct replacement in through-hole applications requiring 330 µF, 100 V aluminum electrolytic capacitors.

The Nichicon UVK2A331MHD1TO, UVR2A331MHD1TO, and UFW2A331MHD1TO maintain identical specifications and are available in higher inventory quantities (1110, 1421, and 1282 units respectively) compared to the original part (898 units).

The Panasonic ECA-2AM331B offers an alternative from a different manufacturer while maintaining full electrical and mechanical compatibility. This part carries an "Active" product status, indicating ongoing manufacturer support and availability for future procurement.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can UVK2A331MHD1TO be used as a direct replacement for UKW2A331MHD1TO?

A: Yes. Both parts share identical electrical specifications (330 µF, 100 V, ±20%, 2000 Hrs @ 85°C) and mechanical dimensions (0.197" lead spacing, 0.492" diameter, 1.063" height). They are through-hole radial components with identical package types and can be substituted without circuit modification.

Q: What is the difference between Nichicon and Panasonic equivalents?

A: The Nichicon parts (UVK2A331MHD1TO, UVR2A331MHD1TO, UFW2A331MHD1TO) and the Panasonic part (ECA-2AM331B) are functionally equivalent with identical electrical ratings and mechanical dimensions. The primary difference is manufacturer. The Panasonic part carries "Active" status, indicating current production support.

Q: Are all substitute parts ROHS3 compliant?

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

Q: Can these parts be used interchangeably in audio applications?

A: Yes. All substitute parts maintain the same capacitance, voltage rating, tolerance, and thermal specifications required for audio circuit applications. The UFW2A331MHD1TO and UKW2A331MHD1TO are specifically rated for audio applications, while UVK2A331MHD1TO, UVR2A331MHD1TO, and ECA-2AM331B are rated for general purpose use but are electrically and mechanically identical.

Q: What is the lead spacing and mounting compatibility?

A: All parts feature 0.197" (5.00 mm) lead spacing and are through-hole radial components. They are compatible with standard PCB footprints designed for 5.00 mm radial lead spacing and 12.50 mm diameter cans.

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