ECO-S1CP682BA Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S1CP682BA is a 6800 µF, 16 V aluminum electrolytic capacitor in radial, can snap-in package with through-hole mounting. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part features 110 mOhm ESR at 120 Hz and a rated lifetime of 3000 hours at 85°C, suitable for general-purpose applications requiring stable capacitance and low impedance characteristics.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Tolerance	±20%
Voltage Rating	16 V
ESR @ 120 Hz	110 mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	0.866" (22.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 6800 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 16 V minimum (equal or higher acceptable)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Case Diameter: 0.866" (22.00 mm) (exact match required)
Height (Seated Max): 1.063" (27.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C minimum to 85°C minimum
Lifetime @ Temperature: 3000 hours minimum at rated temperature
ESR @ 120 Hz: 110 mOhm maximum (lower values acceptable)
Ripple Current @ 120 Hz: 2.57 A minimum

Parts are classified as upgrades when they exceed the main part's performance specifications while maintaining full mechanical and electrical compatibility. Parts are classified as parametric equivalents when they match all primary criteria and meet or exceed secondary criteria.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120 Hz	Lifetime @ Temp	Operating Temp Range	Case Dia	Height	Lead Spacing	Product Status
ECO-S1CP682BA	Panasonic	6800 µF	16 V	±20%	110 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Obsolete
25USG6800MEFCSN22X25	Rubycon	6800 µF	25 V	±20%	—	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
381LX682M016H012	Cornell Dubilier Electronics (CDE)	6800 µF	16 V	±20%	—	3000 Hrs @ 105°C	-40°C ~ 105°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
LGU1C682MELZ	Nichicon	6800 µF	16 V	±20%	—	3000 Hrs @ 105°C	-40°C ~ 105°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
LGY1C682MELZ25	Nichicon	6800 µF	16 V	±20%	—	5000 Hrs @ 105°C	-40°C ~ 105°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
380LX682M016H012	Cornell Dubilier Electronics (CDE)	6800 µF	16 V	±20%	110 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active
688LBB016M2BC	Cornell Dubilier / Illinois Capacitor	6800 µF	16 V	±20%	121.9 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00 mm)	1.063" (27.00 mm)	0.394" (10.00 mm)	Active

Engineering Selection Recommendations

Upgrade Substitutes (Enhanced Performance):

The Rubycon 25USG6800MEFCSN22X25 provides voltage derating margin with 25 V rating while maintaining identical mechanical dimensions and capacitance. This part is ROHS3 compliant and active in production, suitable for applications requiring higher voltage headroom.

The Nichicon LGY1C682MELZ25 offers extended lifetime of 5000 hours at 105°C compared to the original 3000 hours at 85°C, with expanded operating temperature range to 105°C. This part is ROHS3 compliant and active in production.

The Cornell Dubilier 381LX682M016H012 provides identical voltage rating with extended operating temperature to 105°C and 3000-hour lifetime at that elevated temperature. This part is ROHS3 compliant and active in production.

Parametric Equivalents (Direct Replacement):

The Cornell Dubilier 380LX682M016H012 matches all primary electrical and mechanical parameters of the original part, including 110 mOhm ESR at 120 Hz and 3000-hour lifetime at 85°C. This part is ROHS3 compliant and active in production.

The Cornell Dubilier / Illinois Capacitor 688LBB016M2BC provides parametric equivalence with ESR of 121.9 mOhm at 120 Hz, within acceptable tolerance of the original 110 mOhm specification. This part is ROHS3 compliant and active in production.

The Nichicon LGU1C682MELZ meets all primary criteria with extended operating temperature to 105°C and 3000-hour lifetime at that temperature. This part is ROHS3 compliant and active in production.

All recommended substitutes maintain through-hole mounting, radial snap-in package configuration, and identical lead spacing and case dimensions. Selection should be based on application temperature requirements, desired lifetime performance, and voltage margin requirements.

Frequently Asked Questions (FAQ)

Q: Can the Rubycon 25USG6800MEFCSN22X25 be used as a direct replacement for the ECO-S1CP682BA?

A: Yes. The Rubycon part maintains identical capacitance (6800 µF), tolerance (±20%), mechanical dimensions, lead spacing, and mounting type. The 25 V rating exceeds the original 16 V requirement, providing additional voltage margin. All package and footprint specifications are identical.

Q: What is the difference between the Nichicon LGU1C682MELZ and LGY1C682MELZ25?

A: Both parts share identical capacitance, voltage, tolerance, and mechanical specifications. The LGY1C682MELZ25 provides extended lifetime of 5000 hours at 105°C compared to the LGU1C682MELZ at 3000 hours at 105°C. Both support operating temperatures to 105°C.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original Panasonic ECO-S1CP682BA is obsolete and REACH affected; all recommended substitutes are REACH unaffected.

Q: Can I use a substitute part with higher ESR than the original?

A: The 688LBB016M2BC has ESR of 121.9 mOhm at 120 Hz compared to the original 110 mOhm. This represents a 10.8% increase. Compatibility depends on application ripple current and thermal requirements. Applications sensitive to ESR-induced heating should verify thermal performance.

Q: Do all substitute parts have identical physical dimensions?

A: Yes. All substitute parts maintain 0.866" (22.00 mm) case diameter, 1.063" (27.00 mm) seated height, and 0.394" (10.00 mm) lead spacing. PCB footprints and mounting hardware are fully compatible.

Q: Which substitute offers the longest operational lifetime?

A: The Nichicon LGY1C682MELZ25 provides 5000 hours at 105°C, the highest rated lifetime among all listed substitutes. The original part and most alternatives are rated at 3000 hours.

Q: Can I substitute a 16 V part with a 25 V part in my circuit?

A: Yes, provided the circuit design accommodates the higher voltage rating. Higher voltage-rated capacitors do not degrade performance in lower-voltage applications. The Rubycon 25USG6800MEFCSN22X25 is suitable for any application originally designed for the 16 V ECO-S1CP682BA.

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