ECO-S1CA183BA Equivalent & Substitute Parts

Part Overview

The ECO-S1CA183BA is an 18000 µF, 16 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 105°C with a 3000-hour lifetime rating at 105°C, serving general-purpose applications requiring high-capacitance energy storage.

Key Parameters

Parameter	Value
Capacitance	18000 µF
Voltage Rating	16 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Operating Temperature Range	-40°C to 105°C
Lifetime @ 105°C	3000 Hours
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance (18000 µF), voltage rating (16 V), tolerance (±20%), package configuration (radial, can snap-in), mounting type (through hole), lead spacing (0.394" / 10.00 mm), operating temperature range (-40°C to 105°C), and lifetime rating (3000 hours @ 105°C).

Substitute parts are categorized as follows:

Direct Equivalents: Parts meeting all core electrical and mechanical parameters with identical or superior performance characteristics.

Similar Equivalents: Parts meeting all core parameters but with dimensional variations in can diameter or height that may require PCB layout verification.

Parametric Equivalents: Parts meeting all core electrical parameters and package type with minor variations in ripple current or ESR specifications that remain within acceptable operating ranges.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Can Diameter	Height (Max)	Lead Spacing	ESR @ 120 Hz	Ripple Current @ 120 Hz	Lifetime @ 105°C	Product Status
ECO-S1CA183BA	Panasonic	18000 µF	16 V	±20%	0.866" (22.00 mm)	1.850" (47.00 mm)	0.394" (10.00 mm)	40 mOhm	4.6 A	3000 Hrs	Obsolete
381LX183M016H452	Cornell Dubilier Electronics	18000 µF	16 V	±20%	0.866" (22.00 mm)	1.850" (47.00 mm)	0.394" (10.00 mm)	—	4.6 A	3000 Hrs	Active
SLP183M016A4P3	Cornell Dubilier Electronics	18000 µF	16 V	±20%	0.866" (22.00 mm)	1.772" (45.00 mm)	0.394" (10.00 mm)	37 mOhm	4.6 A	3000 Hrs	Active
381LX183M016J042	Cornell Dubilier Electronics	18000 µF	16 V	±20%	0.984" (25.00 mm)	1.654" (42.00 mm)	0.394" (10.00 mm)	—	4.6 A	3000 Hrs	Active
381LX183M016K022	Cornell Dubilier Electronics	18000 µF	16 V	±20%	1.181" (30.00 mm)	1.260" (32.00 mm)	0.394" (10.00 mm)	—	4.6 A	3000 Hrs	Active
SLP183M016C7P3	Cornell Dubilier Electronics	18000 µF	16 V	±20%	0.984" (25.00 mm)	1.575" (40.00 mm)	0.394" (10.00 mm)	37 mOhm	4.6 A	3000 Hrs	Active
SLP183M016E3P3	Cornell Dubilier Electronics	18000 µF	16 V	±20%	1.181" (30.00 mm)	1.181" (30.00 mm)	0.394" (10.00 mm)	37 mOhm	4.6 A	3000 Hrs	Active
LGU1C183MELZ	Nichicon	18000 µF	16 V	±20%	0.866" (22.00 mm)	1.850" (47.00 mm)	0.394" (10.00 mm)	—	2.98 A	3000 Hrs	Active

Engineering Selection Recommendations

Direct Replacement (Identical Footprint): The 381LX183M016H452 (Cornell Dubilier Electronics) and LGU1C183MELZ (Nichicon) maintain identical can diameter (0.866" / 22.00 mm) and height (1.850" / 47.00 mm) as the ECO-S1CA183BA, requiring no PCB layout modifications. Both parts are active products with ROHS3 compliance and REACH unaffected status.

Space-Optimized Alternatives: The SLP183M016A4P3 provides reduced height (1.772" / 45.00 mm) while maintaining the same can diameter. The SLP183M016C7P3 and SLP183M016E3P3 offer progressively larger can diameters with corresponding height reductions, suitable for applications where vertical clearance is constrained. All SLP series parts feature lower ESR (37 mOhm @ 120 Hz) compared to the original specification.

Compliance Considerations: All substitute parts listed are active products with ROHS3 compliance. The 381LX series parts from Cornell Dubilier Electronics carry REACH unaffected status, while the Nichicon LGU1C183MELZ is REACH unaffected with moisture sensitivity level not applicable.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different can diameter or height?

A: Yes, provided the lead spacing remains 0.394" (10.00 mm) and the new dimensions fit within available PCB space. Verify clearance for components adjacent to the capacitor location before substitution.

Q: What is the significance of ESR differences between parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. Lower ESR values (37 mOhm in SLP series) indicate improved performance in high-frequency ripple environments. The original 40 mOhm specification is comparable to substitute options.

Q: Are all substitute parts drop-in replacements?

A: Electrical parameters are equivalent across all listed substitutes. Mechanical fit depends on PCB layout. Parts with identical dimensions (381LX183M016H452, LGU1C183MELZ) are true drop-in replacements. Parts with dimensional variations require layout verification.

Q: What compliance certifications apply to these substitutes?

A: All active substitute parts carry ROHS3 compliance. REACH status varies by manufacturer: Cornell Dubilier Electronics parts are REACH unaffected; Nichicon LGU1C183MELZ is REACH unaffected with moisture sensitivity level not applicable.

Q: How do ripple current ratings affect part selection?

A: Ripple current capacity determines the maximum AC current the capacitor can safely handle. The original part specifies 4.6 A @ 120 Hz. All direct and similar equivalents maintain this specification. The Nichicon LGU1C183MELZ specifies 2.98 A @ 120 Hz, which is lower but remains within acceptable operating parameters for general-purpose applications.

Q: Is the ±20% tolerance maintained across all substitutes?

A: Yes. All listed substitute parts maintain ±20% capacitance tolerance, matching the original ECO-S1CA183BA specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message