EEU-EB2C331 Equivalent & Substitute Parts

Part Overview

The EEU-EB2C331 is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 5000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the EEU-EB2C331 is determined by strict equivalence across the following parameters: capacitance value (330 µF), voltage rating (160 V), tolerance (±20%), polarization (polar), lead spacing (0.295" / 7.50 mm), case diameter (0.709" / 18.00 mm), and mounting type (through hole, radial can package). All identified substitutes maintain these core electrical and mechanical specifications. Variations in lifetime rating, ripple current capacity, and operating temperature range are secondary considerations that do not prevent functional substitution when the primary parameters align.

Parameter Comparison

Parameter	EEU-EB2C331	ECA-2CHG331	EEU-ED2C331	EEU-EE2C331	EKXG161ELL331MMN3S
Manufacturer	Panasonic	Panasonic	Panasonic	Panasonic	Chemi-Con
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	160 V	160 V	160 V	160 V	160 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	5000 Hrs	2000 Hrs	10000 Hrs	10000 Hrs	10000 Hrs
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)	0.709" (18.00 mm)
Height (Max)	1.319" (34.60 mm)	1.319" (34.60 mm)	1.240" (31.50 mm)	1.319" (34.60 mm)	1.240" (31.50 mm)
Ripple Current @ 120 Hz	929.5 mA	705 mA	900 mA	1.04 A	1.39 A
Ripple Current @ 100 kHz	1.69 A	1.058 A	2 A	2.6 A	3.1275 A
Product Status	Obsolete	Obsolete	Obsolete	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All identified substitutes meet the core electrical and mechanical requirements for direct replacement of the EEU-EB2C331. Selection among these parts should be based on product status and compliance requirements.

The EKXG161ELL331MMN3S, manufactured by Chemi-Con, is the only active product in this group and represents the preferred choice for new designs and long-term production continuity. This part maintains full electrical and mechanical compatibility while offering extended operating temperature range (-40°C to 105°C) and superior ripple current capacity.

The Panasonic alternatives—ECA-2CHG331, EEU-ED2C331, and EEU-EE2C331—are all classified as obsolete. These parts remain functionally equivalent but carry the risk of future unavailability. Among the obsolete Panasonic options, EEU-ED2C331 and EEU-EE2C331 offer extended lifetime ratings (10000 hours at 105°C) compared to the EEU-EB2C331 (5000 hours), providing improved reliability margins for applications requiring extended service life.

All substitutes are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can ECA-2CHG331 directly replace EEU-EB2C331?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (160 V), tolerance (±20%), lead spacing (7.50 mm), case diameter (18.00 mm), and through-hole radial can package. The primary difference is reduced lifetime rating (2000 hours versus 5000 hours at 105°C), which does not prevent functional substitution in applications where this lifetime is acceptable.

Q: What is the advantage of EEU-ED2C331 over EEU-EB2C331?

A: EEU-ED2C331 provides doubled lifetime rating (10000 hours at 105°C versus 5000 hours) while maintaining all other electrical and mechanical specifications. Height is reduced by 0.079" (2.00 mm), which may provide PCB layout benefits. Ripple current capacity is comparable.

Q: Why is EKXG161ELL331MMN3S recommended for new designs?

A: EKXG161ELL331MMN3S is the only active product among all substitutes, ensuring long-term availability and supply chain stability. It maintains full compatibility with EEU-EB2C331 specifications while offering extended operating temperature range (-40°C to 105°C) and higher ripple current capacity (3.1275 A at 100 kHz versus 1.69 A).

Q: Are there height differences that affect PCB layout?

A: Yes. EEU-ED2C331 and EKXG161ELL331MMN3S have maximum seated height of 1.240" (31.50 mm), while EEU-EB2C331, ECA-2CHG331, and EEU-EE2C331 have maximum seated height of 1.319" (34.60 mm). This 0.079" (2.00 mm) difference must be verified against PCB clearance requirements before substitution.

Q: Do all substitutes meet current compliance standards?

A: Yes. All identified substitutes are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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