EEU-EE2W680 Equivalent & Substitute Parts

Part Overview

The EEU-EE2W680 is a 68 µF, 450 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This part operates across a temperature range of -25°C to 105°C with a rated lifetime of 10,000 hours at 105°C. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ 105°C	10,000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.295" (7.50mm)
Case Diameter	0.709" (18.00mm)
Height (Seated Max)	1.654" (42.00mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-EE2W680 is determined by the following criteria:

Primary Compatibility Parameters:

Capacitance: 68 µF (exact match required)
Voltage Rating: 450 V minimum (equal or higher acceptable)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required for PCB compatibility)
Case Diameter: 0.709" (18.00mm) (exact match required for mechanical fit)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: -25°C to 105°C minimum (equal or wider acceptable)
Lifetime @ 105°C: 10,000 hours minimum (equal or greater acceptable)
Polarization: Polar (exact match required)

Substitute parts are grouped into two categories:

Similar Substitutes: Parts meeting all primary and secondary compatibility parameters with identical or equivalent electrical performance characteristics.

Upgrade Substitutes: Parts exceeding the original specifications in voltage rating and/or lifetime while maintaining all primary mechanical and electrical compatibility parameters.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height (Max)	Status	RoHS
EEU-EE2W680	Panasonic	68 µF	450 V	±20%	10,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.654" (42.00mm)	Obsolete	ROHS3
EEU-ED2W680	Panasonic	68 µF	450 V	±20%	10,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.575" (40.00mm)	Obsolete	ROHS3
EKXG451ELL680MMN3S	Chemi-Con	68 µF	450 V	±20%	10,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.240" (31.50mm)	Active	ROHS3
UPT2W680MHD	Nichicon	68 µF	450 V	±20%	5,000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.634" (41.50mm)	Active	ROHS3
UPT2W680MHD6	Nichicon	68 µF	450 V	±20%	5,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.299" (33.00mm)	Active	ROHS3
UVY2W680MHD	Nichicon	68 µF	450 V	±20%	2,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.476" (37.50mm)	Not For New Designs	ROHS3
B43890A5686M000	EPCOS - TDK Electronics	68 µF	450 V	±20%	15,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.654" (42.00mm)	Active	ROHS3
500BXC68M18X40	Rubycon	68 µF	500 V	±20%	12,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.654" (42.00mm)	Active	ROHS3
UCY2H680MHD	Nichicon	68 µF	500 V	±20%	12,000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.634" (41.50mm)	Active	ROHS3

Engineering Selection Recommendations

Direct Mechanical and Electrical Equivalents (Preferred for Direct Replacement):

EEU-ED2W680 (Panasonic) and EKXG451ELL680MMN3S (Chemi-Con) maintain identical electrical specifications and lead spacing as the EEU-EE2W680. Both are ROHS3 compliant. EEU-ED2W680 is obsolete but available in inventory. EKXG451ELL680MMN3S is active production and recommended for new designs requiring direct compatibility.

Active Production Alternatives with Identical Specifications:

UPT2W680MHD6 (Nichicon) matches the primary electrical and mechanical parameters with active product status and ROHS3 compliance. This part is suitable for direct substitution in applications where the reduced lifetime (5,000 hours versus 10,000 hours) is acceptable.

Upgraded Performance Options:

B43890A5686M000 (EPCOS - TDK Electronics) provides identical mechanical fit with extended lifetime of 15,000 hours at 105°C, maintaining 450 V rating and ROHS3 compliance. This upgrade is suitable for applications requiring enhanced reliability.

500BXC68M18X40 (Rubycon) and UCY2H680MHD (Nichicon) both offer 500 V rating with extended lifetimes (12,000 hours), providing voltage margin while maintaining mechanical compatibility. Both are active production and ROHS3 compliant. These upgrades are appropriate for applications where higher voltage rating provides system design benefits.

Parts Not Recommended for New Designs:

UVY2W680MHD (Nichicon) carries "Not For New Designs" status and exhibits significantly reduced lifetime (2,000 hours). This part should be avoided for new applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 500 V rated capacitor in place of the 450 V EEU-EE2W680?

A: Yes. The 500BXC68M18X40 (Rubycon) and UCY2H680MHD (Nichicon) are both rated for 500 V and maintain identical mechanical dimensions and lead spacing. Higher voltage rating does not compromise compatibility in circuits designed for 450 V operation.

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

A: Similar substitutes maintain the original 450 V rating and 10,000-hour lifetime specification. Upgrade substitutes exceed one or both of these parameters—either providing higher voltage rating (500 V) or extended lifetime (12,000 to 15,000 hours)—while preserving mechanical compatibility.

Q: Does the height difference between substitute parts affect PCB compatibility?

A: Height variations exist among substitutes (ranging from 1.240" to 1.654"). Verify PCB clearance requirements before selection. Lead spacing (0.295" / 7.50mm) remains constant across all compatible substitutes, ensuring footprint compatibility.

Q: Why is UVY2W680MHD marked "Not For New Designs"?

A: This part carries reduced lifetime specification (2,000 hours at 105°C) compared to the original 10,000-hour rating. It is retained for legacy system support only and should not be selected for new applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original EEU-EE2W680 environmental certification status.

Q: What is the minimum acceptable lifetime for substitution?

A: The original specification is 10,000 hours at 105°C. Substitutes with equal or greater lifetime are preferred. UPT2W680MHD and UPT2W680MHD6 provide 5,000-hour lifetime and are acceptable only where application duty cycle permits reduced lifetime operation.

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