EET-HC2V331JA Equivalent & Substitute Parts

Part Overview

The Panasonic EET-HC2V331JA is a 330 µF, 350 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TS-HC series has been discontinued, requiring engineers to select from active alternative manufacturers while maintaining electrical and mechanical compatibility within the specified parameter ranges.

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	0.984" (25.00 mm)
Height (Seated Max)	1.654" (42.00 mm)
Mounting Type	Through Hole
Operating Temperature	-25°C to 105°C
Polarization	Polar
Application	General Purpose

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Direct Equivalents (350 V Rating): Parts maintaining identical 330 µF capacitance, 350 V voltage rating, ±20% tolerance, and compatible snap-in package dimensions qualify as direct substitutes. These parts preserve the original electrical and mechanical specifications without design modification.

Upgrade Options (400 V and 420 V Ratings): Parts with elevated voltage ratings (400 V or 420 V) are compatible substitutes when the application circuit permits higher voltage operation. These upgrades provide enhanced voltage margin while maintaining 330 µF capacitance and mechanical compatibility.

Critical Compatibility Parameters:

Capacitance: 330 µF (fixed)
Tolerance: ±20% (fixed)
Package: Radial, Can - Snap-In (fixed)
Lead Spacing: 0.394" (10.00 mm) (fixed)
Diameter: 0.984" to 1.000" (25.00 mm to 25.40 mm) (acceptable range)
Height: 1.654" to 1.673" (42.00 mm to 42.50 mm) (acceptable range)
Mounting: Through Hole (fixed)

Parameter Comparison

Manufacturer	Part Number	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Diameter	Height	Status
Panasonic	EET-HC2V331JA	TS-HC	330 µF	350 V	±20%	2000 Hrs	0.984"	1.654"	Obsolete
Rubycon	350VXH330MEFC25X40	VXH	330 µF	350 V	±20%	5000 Hrs	0.984"	1.654"	Active
Chemi-Con	EKMQ351VSN331MQ40S	KMQ	330 µF	350 V	±20%	2000 Hrs	1.000"	1.654"	Active
Nichicon	LGN2V331MELA40	LGN	330 µF	350 V	±20%	3000 Hrs	0.984"	1.654"	Active
Nichicon	LQS2V331MELA40	LQS	330 µF	350 V	±20%	3000 Hrs	0.984"	1.654"	Active
Rubycon	400VXH330MEFC25X40	VXH	330 µF	400 V	±20%	5000 Hrs	0.984"	1.654"	Active
Rubycon	400VXH330MEFCSN25X40	VXH	330 µF	400 V	±20%	5000 Hrs	0.984"	1.654"	Active
Rubycon	420MXK330MEFC25X40	MXK	330 µF	420 V	±20%	3000 Hrs	0.984"	1.654"	Active
Chemi-Con	EKMS401VSN331MQ40S	KMS	330 µF	400 V	±20%	3000 Hrs	1.000"	1.673"	Active
Chemi-Con	EKMW421VSN331MQ40S	KMW	330 µF	420 V	±20%	2000 Hrs	1.000"	1.673"	Active
Chemi-Con	ELXS401VEN331MQ40S	LXS	330 µF	400 V	±20%	5000 Hrs	1.000"	1.654"	Active

Engineering Selection Recommendations

Direct Replacement (350 V Equivalents): The Rubycon 350VXH330MEFC25X40 provides the closest electrical and mechanical match to the EET-HC2V331JA. Both maintain 350 V rating, identical package dimensions, and 330 µF capacitance. The Rubycon part offers extended lifetime (5000 Hrs @ 105°C versus 2000 Hrs), providing improved reliability. This part is ROHS3 compliant and carries active product status.

The Nichicon LGN2V331MELA40 and LQS2V331MELA40 are functionally equivalent alternatives with 3000 Hrs lifetime rating. Both maintain identical mechanical dimensions and electrical specifications. These parts are ROHS3 compliant with active status.

The Chemi-Con EKMQ351VSN331MQ40S matches the original 2000 Hrs lifetime specification and maintains 350 V rating. Diameter tolerance is 1.000" (25.40 mm), within acceptable mechanical range. This part is ROHS3 compliant and active.

Voltage Upgrade Options (400 V and 420 V): When circuit design permits higher voltage operation, upgrade parts provide enhanced voltage margin. The Rubycon 400VXH330MEFC25X40 and 400VXH330MEFCSN25X40 maintain identical mechanical dimensions with 5000 Hrs lifetime. The Rubycon 420MXK330MEFC25X40 offers maximum voltage headroom with 3000 Hrs lifetime.

The Chemi-Con EKMS401VSN331MQ40S (400 V) and EKMW421VSN331MQ40S (420 V) provide voltage upgrades with slightly larger dimensions (1.000" diameter, up to 1.673" height). These remain within acceptable mechanical tolerances for through-hole mounting.

The Chemi-Con ELXS401VEN331MQ40S offers 400 V rating with extended 5000 Hrs lifetime, suitable for applications requiring both voltage margin and long-term reliability.

All recommended parts maintain ROHS3 compliance and active product status, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V or 420 V rated capacitor in place of the 350 V original? A: Yes, provided the circuit design permits higher voltage operation. Higher voltage ratings do not degrade performance in lower voltage applications. Verify that PCB layout and component spacing accommodate any dimensional variations.

Q: What is the significance of lifetime rating differences (2000 Hrs, 3000 Hrs, 5000 Hrs)? A: Lifetime rating indicates expected operational duration at maximum rated temperature (105°C). Higher lifetime ratings provide extended service life under thermal stress. Selection depends on application duty cycle and reliability requirements. All listed parts meet or exceed the original 2000 Hrs specification.

Q: Are there mechanical compatibility concerns with diameter variations (0.984" to 1.000")? A: Diameter variations of 0.016" (0.40 mm) fall within standard PCB through-hole tolerance. Verify that component lead holes and snap-in fixture accommodate the specified diameter range. Height variations (1.654" to 1.673") are similarly acceptable for standard through-hole mounting.

Q: What does ROHS3 compliance mean for this component? A: ROHS3 compliance indicates the capacitor meets Restriction of Hazardous Substances Directive requirements, restricting lead, mercury, cadmium, and other hazardous materials. All active substitute parts listed carry ROHS3 compliance, ensuring regulatory alignment with current manufacturing standards.

Q: Why is the original Panasonic EET-HC2V331JA marked obsolete? A: Obsolescence indicates the manufacturer has discontinued production. Active substitute parts from Rubycon, Chemi-Con, and Nichicon provide equivalent or superior electrical and mechanical performance, ensuring design continuity without functional compromise.

Q: Can I mix different manufacturers in the same circuit board? A: Yes. All listed parts maintain identical electrical specifications (330 µF, ±20% tolerance, 350 V minimum rating) and compatible mechanical packages. Mixing manufacturers is acceptable from an electrical standpoint. Verify PCB assembly procedures accommodate any minor dimensional variations.

Q: What is the difference between snap-in and other mounting styles? A: Snap-in configuration uses mechanical clips on the capacitor can to secure the component to the PCB without solder. This mounting style is standard for large aluminum electrolytic capacitors in industrial and power supply applications. All listed parts maintain snap-in compatibility.

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