EEU-EE2C331 Equivalent & Substitute Parts

Part Overview

The EEU-EE2C331 is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This part operates across -25°C to 105°C with a rated lifetime of 10,000 hours at 105°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage - Rated	160 V
Tolerance	±20%
Lifetime @ Temperature	10,000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Size / Dimension	0.709" Dia (18.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the EEU-EE2C331 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 160 V minimum (higher voltage ratings are acceptable as upgrades)
Tolerance: ±20% (exact match)
Polarization: Polar (exact match)
Lead Spacing: 0.295" (7.50 mm) (exact match)
Can Diameter: 0.709" (18.00 mm) (exact match)
Mounting Type: Through Hole (exact match)
Package: Radial, Can (exact match)

Secondary Considerations:

Lifetime @ 105°C: 10,000 hours or greater
Operating Temperature Range: Must encompass -25°C to 105°C minimum
RoHS3 Compliance: Required for regulatory alignment

Substitute parts are categorized as follows:

Similar Substitutes (Same Voltage Rating - 160 V):

ECA-2CHG331 (Panasonic, obsolete, reduced lifetime)
EEU-ED2C331 (Panasonic, obsolete, equivalent lifetime)

Direct Equivalent (Same Voltage Rating - 160 V, Active Status):

UCS2C331MHD (Nichicon, active production)

Upgrade Substitutes (Higher Voltage Rating - 200 V, Active Status):

UCY2D331MHD6 (Nichicon, 200 V, extended lifetime)
EKXJ201ELL331MMN3S (Chemi-Con, 200 V, automotive rated)
160BXC330MEFC18X31.5 (Rubycon, 160 V, extended lifetime)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp Range	Status	Lead Spacing	Can Diameter	Height (Max)
EEU-EE2C331	Panasonic	330 µF	160 V	±20%	10,000 Hrs	-25°C ~ 105°C	Obsolete	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)
ECA-2CHG331	Panasonic	330 µF	160 V	±20%	2,000 Hrs	-25°C ~ 105°C	Obsolete	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)
EEU-ED2C331	Panasonic	330 µF	160 V	±20%	10,000 Hrs	-25°C ~ 105°C	Obsolete	0.295" (7.50 mm)	0.709" (18.00 mm)	1.240" (31.50 mm)
UCS2C331MHD	Nichicon	330 µF	160 V	±20%	10,000 Hrs	-40°C ~ 105°C	Active	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)
UCY2D331MHD6	Nichicon	330 µF	200 V	±20%	12,000 Hrs	-40°C ~ 105°C	Active	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)
EKXJ201ELL331MMN3S	Chemi-Con	330 µF	200 V	±20%	12,000 Hrs	-40°C ~ 105°C	Active	0.295" (7.50 mm)	0.709" (18.00 mm)	1.299" (33.00 mm)
160BXC330MEFC18X31.5	Rubycon	330 µF	160 V	±20%	12,000 Hrs	-25°C ~ 105°C	Active	0.295" (7.50 mm)	0.709" (18.00 mm)	1.319" (34.60 mm)

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications):

UCS2C331MHD (Nichicon) is the preferred direct equivalent. It maintains 160 V rating, 330 µF capacitance, ±20% tolerance, and 10,000-hour lifetime at 105°C. This part is in active production status and ROHS3 compliant. The extended operating temperature range (-40°C to 105°C) provides additional margin beyond the original specification.

For Enhanced Reliability (Voltage Upgrade):

UCY2D331MHD6 (Nichicon) or EKXJ201ELL331MMN3S (Chemi-Con) offer 200 V rating with 12,000-hour lifetime at 105°C. Both are active production parts with ROHS3 compliance. The higher voltage rating provides additional safety margin in applications where the original 160 V specification allows for voltage headroom. EKXJ201ELL331MMN3S includes AEC-Q200 automotive qualification.

For Same Voltage with Extended Lifetime:

160BXC330MEFC18X31.5 (Rubycon) maintains the 160 V rating while providing 12,000-hour lifetime at 105°C. This part is active production and ROHS3 compliant, with identical mechanical dimensions to the original EEU-EE2C331.

Avoid:

ECA-2CHG331 (Panasonic) has reduced lifetime (2,000 hours at 105°C) compared to the original specification and is obsolete. EEU-ED2C331 (Panasonic) is also obsolete, though it matches electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V rated capacitor in place of a 160 V rated capacitor?

A: Yes. A higher voltage rating is electrically compatible and provides additional safety margin. The 200 V parts (UCY2D331MHD6, EKXJ201ELL331MMN3S) will function correctly in circuits designed for 160 V operation.

Q: What is the significance of the lifetime rating difference between parts?

A: Lifetime at 105°C indicates the expected operational duration under maximum temperature conditions. The original EEU-EE2C331 specifies 10,000 hours. Substitutes with 12,000-hour ratings (UCY2D331MHD6, EKXJ201ELL331MMN3S, 160BXC330MEFC18X31.5) provide extended service life. Parts with reduced lifetime (ECA-2CHG331 at 2,000 hours) are not suitable for equivalent replacement.

Q: Are there mechanical compatibility concerns with substitute parts?

A: All listed substitutes maintain the critical mechanical parameters: 0.295" (7.50 mm) lead spacing, 0.709" (18.00 mm) can diameter, and through-hole radial mounting. Height variations are minor (1.240" to 1.319") and do not affect PCB layout compatibility for standard through-hole designs.

Q: Which substitute offers the best overall performance?

A: Selection depends on application requirements. UCS2C331MHD provides direct electrical equivalence with active production status. UCY2D331MHD6 and EKXJ201ELL331MMN3S offer voltage upgrade and extended lifetime. 160BXC330MEFC18X31.5 maintains original voltage with extended lifetime.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes are ROHS3 compliant, matching the regulatory status of the original EEU-EE2C331.

Q: What is the difference between similar and upgrade substitutes?

A: Similar substitutes (ECA-2CHG331, EEU-ED2C331) match the original 160 V rating but are obsolete. Upgrade substitutes (UCY2D331MHD6, EKXJ201ELL331MMN3S, 160BXC330MEFC18X31.5) are in active production and offer either higher voltage rating or extended lifetime, or both.

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