Equivalent & Substitute Parts for EEU-ED2D680SB

Part Overview

The EEU-ED2D680SB is a 68 µF, 200 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This capacitor is rated for 10,000 hours at 105°C and is designed for general-purpose applications requiring reliable energy storage and filtering. The part is currently active in production and ROHS3 compliant.

Equivalent and substitute parts are identified when electrical parameters (capacitance, voltage rating, tolerance, lifetime) and mechanical parameters (lead spacing, case size, mounting type) align within acceptable tolerances for the application. This reference provides direct equivalents, upgraded alternatives with enhanced specifications, and similar parts with minor parameter variations.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ 105°C	10,000 Hrs
Operating Temperature Range	-25°C to 105°C
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution relationships are established based on the following criteria:

Direct Equivalents share identical electrical specifications (capacitance, voltage, tolerance, lifetime) and mechanical dimensions (lead spacing, case size, height). Packaging format differences (Tape & Box vs. Bulk) do not affect electrical or mechanical compatibility.

Upgraded Alternatives maintain the same capacitance, tolerance, and mechanical footprint but feature enhanced voltage ratings or extended operational lifetimes. These parts provide superior performance margins and are suitable for applications requiring higher reliability.

Similar Parts match the core electrical parameters (capacitance, voltage, tolerance) and mounting type but differ in one or more of the following: lifetime rating, lead spacing, case diameter, or height. These parts require PCB layout verification before substitution.

The following parameters determine substitution eligibility:

Capacitance value (must match exactly)
Voltage rating (equal or higher acceptable for upgrades)
Tolerance (must match)
Lead spacing and case dimensions (must match for direct PCB compatibility)
Mounting type (Through Hole maintained throughout)
Polarization (Polar maintained throughout)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Case Diameter	Height (Max)	Product Status	Packaging
EEU-ED2D680SB	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.866" (22.00 mm)	Active	Tape & Box
EEU-ED2D680S	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.787" (20.00 mm)	Active	Bulk
EEU-ED2E680S	Panasonic	68 µF	250 V	±20%	10,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.787" (20.00 mm)	Active	Bulk
EEU-EB2D680S	Panasonic	68 µF	200 V	±20%	5,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.866" (22.00 mm)	Active	Bulk
EEU-ED2D680	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	0.984" (25.00 mm)	Active	Bulk
EEU-ED2D680B	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Active	Cut Tape
EEU-EB2D680	Panasonic	68 µF	200 V	±20%	5,000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Active	Bulk
EEU-EE2D680	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.197" (5.00 mm)	0.492" (12.50 mm)	1.063" (27.00 mm)	Active	Bulk
EEU-EE2D680S	Panasonic	68 µF	200 V	±20%	10,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.866" (22.00 mm)	Active	Bulk
UCA2D680MHD6	Nichicon	68 µF	200 V	±20%	12,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.846" (21.50 mm)	Obsolete	Bulk
UCS2E680MHD1TN	Nichicon	68 µF	250 V	±20%	10,000 Hrs	0.295" (7.50 mm)	0.630" (16.00 mm)	0.846" (21.50 mm)	Active	Cut Tape

Engineering Selection Recommendations

Direct Substitution (Identical Electrical and Mechanical Specifications)

EEU-ED2D680S is a direct equivalent to EEU-ED2D680SB. Both parts maintain 68 µF capacitance, 200 V rating, ±20% tolerance, and 10,000-hour lifetime at 105°C. The primary difference is packaging format (Bulk vs. Tape & Box). Both are ROHS3 compliant and Active in production status. This substitution requires no design changes.

EEU-EE2D680S is electrically equivalent with identical capacitance, voltage, tolerance, and lifetime specifications. Lead spacing and case dimensions match the main part exactly (0.295" lead spacing, 0.630" diameter, 0.866" height). This part is Active and ROHS3 compliant. Substitution is direct for PCB compatibility.

Upgraded Alternatives (Enhanced Specifications)

EEU-ED2E680S provides a voltage upgrade to 250 V while maintaining 68 µF capacitance, ±20% tolerance, and 10,000-hour lifetime. The mechanical footprint is compatible (0.295" lead spacing, 0.630" diameter). Height is reduced to 0.787", which may provide layout advantages. This part is Active and ROHS3 compliant.

UCS2E680MHD1TN (Nichicon) offers 250 V rating with 68 µF capacitance and 10,000-hour lifetime. Mechanical dimensions are compatible (0.295" lead spacing, 0.630" diameter, 0.846" height). This part is Active and ROHS3 compliant. Operating temperature range extends to -40°C, providing enhanced low-temperature performance.

UCA2D680MHD6 (Nichicon) maintains 200 V rating with extended 12,000-hour lifetime at 105°C. Mechanical compatibility is confirmed (0.295" lead spacing, 0.630" diameter). However, this part is marked Obsolete and should be avoided for new designs requiring long-term supply assurance.

Similar Parts (Parameter Variations Requiring Verification)

EEU-EB2D680S shares electrical specifications (68 µF, 200 V, ±20% tolerance) but features reduced 5,000-hour lifetime. Mechanical dimensions match the main part (0.295" lead spacing, 0.630" diameter, 0.866" height). This part is suitable only for applications with lower reliability requirements. Active status and ROHS3 compliance are confirmed.

EEU-ED2D680, EEU-ED2D680B, EEU-EB2D680, and EEU-EE2D680 all feature different lead spacing (0.197" vs. 0.295") and smaller case diameter (0.492" vs. 0.630"). These parts require PCB layout redesign and are not suitable for direct substitution on existing boards designed for the main part.

Frequently Asked Questions (FAQ)

Q: Can EEU-ED2D680S replace EEU-ED2D680SB directly on the PCB?

A: Yes. Both parts share identical electrical specifications (68 µF, 200 V, ±20%, 10,000 Hrs @ 105°C) and mechanical dimensions (0.295" lead spacing, 0.630" diameter, 0.866" height). The only difference is packaging format. No PCB modifications are required.

Q: What is the difference between EEU-ED2D680SB and EEU-ED2D680S?

A: The parts are electrically and mechanically identical. EEU-ED2D680SB is supplied in Tape & Box packaging, while EEU-ED2D680S is supplied in Bulk packaging. Selection depends on procurement and assembly requirements, not electrical performance.

Q: Can I use EEU-ED2E680S as a substitute for EEU-ED2D680SB?

A: Yes, with design margin improvement. EEU-ED2E680S provides upgraded 250 V rating (vs. 200 V) while maintaining 68 µF capacitance and 10,000-hour lifetime. Mechanical compatibility is confirmed. This substitution increases voltage headroom without PCB changes.

Q: Why are EEU-ED2D680 and EEU-ED2D680B listed as similar but not direct substitutes?

A: These parts feature different lead spacing (0.197" vs. 0.295") and smaller case diameter (0.492" vs. 0.630"). Direct PCB substitution is not possible without layout redesign. They are electrically equivalent but mechanically incompatible with the main part's footprint.

Q: Is UCA2D680MHD6 recommended for new designs?

A: No. Although this Nichicon part offers extended 12,000-hour lifetime, it is marked Obsolete. New designs should use Active alternatives such as EEU-ED2D680S or UCS2E680MHD1TN to ensure long-term supply availability and manufacturing support.

Q: What is the difference between EEU-EB2D680S and EEU-ED2D680SB?

A: Both parts share identical mechanical dimensions and electrical parameters except lifetime. EEU-EB2D680S is rated for 5,000 hours at 105°C, while EEU-ED2D680SB is rated for 10,000 hours. EEU-EB2D680S is suitable only for applications with lower reliability or shorter operational life requirements.

Q: Can I substitute a part with different lead spacing on an existing PCB?

A: No. Lead spacing determines hole placement on the PCB. Parts with 0.197" lead spacing (EEU-ED2D680, EEU-ED2D680B, EEU-EB2D680, EEU-EE2D680) cannot be installed in footprints designed for 0.295" lead spacing without PCB rework or redesign.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All Active and Obsolete parts in this reference are ROHS3 compliant. All parts are also REACH Unaffected and classified as EAR99 for export purposes.

Q: What is the operating temperature range for these capacitors?

A: Panasonic parts (EEU series) operate from -25°C to 105°C. Nichicon UCS2E680MHD1TN extends the low-temperature range to -40°C, providing enhanced performance in cold environments.

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