EET-HC2V331KA Equivalent & Substitute Parts

Part Overview

The EET-HC2V331KA is a 330 µF, 350 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This part operates across a temperature range of -25°C to 105°C with a rated lifetime of 2000 hours at 105°C. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	350 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)
Height (Seated Max)	1.260" (32.00 mm)
Mounting Type	Through Hole
Operating Temperature	-25°C to 105°C
Polarization	Polar
Applications	General Purpose

Substitute Part Grouping Explanation

Substitution for the EET-HC2V331KA is determined by the following critical parameters:

Direct Equivalents (Same Voltage Rating - 350 V):

Capacitance: 330 µF (exact match required)
Voltage Rating: 350 V (exact match required)
Tolerance: ±20% (exact match required)
Package: Radial, Can - Snap-In (exact match required)
Physical Dimensions: 1.181" Dia × 1.260" Height (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)

Direct equivalents maintain identical electrical and mechanical specifications, ensuring drop-in replacement capability without circuit redesign.

Upgrade Substitutes (Higher Voltage Rating - 400 V, 420 V, 450 V):

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Package: Radial, Can - Snap-In (exact match required)
Physical Dimensions: 1.181" Dia × 1.260" Height (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Voltage Rating: 400 V, 420 V, or 450 V (higher than original 350 V)

Upgrade substitutes provide higher voltage ratings while maintaining identical physical form factor and capacitance. These parts are electrically compatible in circuits designed for 350 V operation, as they can withstand higher voltage stress without exceeding the original design envelope.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	Lifetime @ 105°C	Product Status	RoHS Status
EET-HC2V331KA	Panasonic	TS-HC	330 µF	350 V	±20%	2000 Hrs	Obsolete	Not Specified
LGN2V331MELB30	Nichicon	LGN	330 µF	350 V	±20%	3000 Hrs	Active	ROHS3 Compliant
LQS2V331MELB30	Nichicon	LQS	330 µF	350 V	±20%	3000 Hrs	Active	ROHS3 Compliant
400MXG330MEFCSN30X30	Rubycon	MXG	330 µF	400 V	±20%	3000 Hrs	Active	ROHS3 Compliant
400MXH330MEFCSN30X30	Rubycon	MXH	330 µF	400 V	±20%	2000 Hrs	Active	ROHS3 Compliant
400MXK330MEFCSN30X30	Rubycon	MXK	330 µF	400 V	±20%	3000 Hrs	Active	ROHS3 Compliant
400VXH330MEFC30X30	Rubycon	VXH	330 µF	400 V	±20%	5000 Hrs	Active	ROHS3 Compliant
400VXH330MEFCSN30X30	Rubycon	VXH	330 µF	400 V	±20%	5000 Hrs	Active	ROHS3 Compliant
420MXK330MEFC30X30	Rubycon	MXK	330 µF	420 V	±20%	3000 Hrs	Active	ROHS3 Compliant
450MXK330MEFC30X30	Rubycon	MXK	330 µF	450 V	±20%	3000 Hrs	Active	ROHS3 Compliant
450MXK330MEFCFA30X30	Rubycon	MXK	330 µF	450 V	±20%	3000 Hrs	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection (350 V Rating):

LGN2V331MELB30 and LQS2V331MELB30 from Nichicon are direct electrical and mechanical equivalents to the EET-HC2V331KA. Both parts are active products with ROHS3 compliance and extended lifetime ratings of 3000 hours at 105°C compared to the original 2000 hours. These parts provide improved reliability while maintaining identical form factor and electrical characteristics.

Upgrade Substitute Selection (400 V, 420 V, 450 V Ratings):

Rubycon parts with higher voltage ratings (400MXG330MEFCSN30X30, 400MXH330MEFCSN30X30, 400MXK330MEFCSN30X30, 400VXH330MEFC30X30, 400VXH330MEFCSN30X30, 420MXK330MEFC30X30, 450MXK330MEFC30X30, 450MXK330MEFCFA30X30) are suitable for applications where higher voltage margin is beneficial. All upgrade substitutes maintain identical physical dimensions and lead spacing. The 400VXH series offers the longest lifetime rating at 5000 hours at 105°C, providing enhanced long-term reliability. All substitute parts are ROHS3 compliant and active products.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V rated capacitor in place of the 350 V EET-HC2V331KA?

A: Yes. A 400 V rated capacitor with identical capacitance (330 µF), tolerance (±20%), and physical dimensions (1.181" Dia × 1.260" Height, 10.00 mm lead spacing) is electrically compatible. The higher voltage rating provides additional safety margin in the circuit without affecting performance in a 350 V application.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents (LGN2V331MELB30, LQS2V331MELB30) maintain the exact 350 V voltage rating of the original part. Upgrade substitutes have higher voltage ratings (400 V, 420 V, 450 V) while maintaining all other specifications. Both categories are mechanically and electrically compatible drop-in replacements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. The original EET-HC2V331KA compliance status is not specified in available documentation.

Q: Does the physical package size differ between substitute parts?

A: No. All substitute parts maintain identical physical dimensions: 1.181" diameter, 1.260" seated height, and 0.394" (10.00 mm) lead spacing. All parts use radial, can snap-in packaging suitable for through-hole mounting.

Q: Which substitute offers the longest operational lifetime?

A: The Rubycon 400VXH series (400VXH330MEFC30X30 and 400VXH330MEFCSN30X30) offers 5000 hours at 105°C, compared to 3000 hours for most other substitutes and 2000 hours for the original EET-HC2V331KA.

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

A: Yes. All substitute parts meet identical electrical and mechanical specifications for capacitance, voltage rating, tolerance, and physical form factor. Mixing manufacturers is acceptable from an engineering standpoint, though design documentation should reflect the specific part numbers used.

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