Equivalent & Substitute Parts for ECO-S1KA332CA

Part Overview

The Panasonic ECO-S1KA332CA is a 3300 µF, 80 V aluminum electrolytic capacitor with radial, snap-in packaging designed for general-purpose applications. This component operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Capacitance	3300 µF
Voltage Rating	80 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 Hrs
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S1KA332CA is determined by strict equivalence across the following parameters: capacitance value (3300 µF), voltage rating (80 V), tolerance (±20%), package configuration (radial snap-in), lead spacing (10.00 mm), and operating temperature range (-40°C to 105°C). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional compatibility in through-hole applications.

Substitute parts are categorized as follows:

Direct Equivalents maintain identical or near-identical physical dimensions and electrical performance characteristics.

Similar Equivalents meet all core electrical parameters but may vary in physical dimensions (diameter or height), provided lead spacing and mounting type remain unchanged.

Parametric Equivalents satisfy all critical electrical specifications and mechanical constraints while potentially differing in secondary characteristics such as ESR or ripple current ratings.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Diameter (mm)	Height (mm)	Lead Spacing (mm)	Lifetime @ 105°C	Product Status
ECO-S1KA332CA	Panasonic	3300 µF	80 V	±20%	25.00	52.00	10.00	3000 Hrs	Obsolete
80MXG3300MEFCSN22X50	Rubycon	3300 µF	80 V	±20%	22.00	52.00	10.00	3000 Hrs	Active
80MXG3300MEFCSN25X40	Rubycon	3300 µF	80 V	±20%	25.00	42.00	10.00	3000 Hrs	Active
B41252A338M	EPCOS - TDK Electronics	3300 µF	80 V	±20%	25.40	52.00	10.00	2000 Hrs	Active
LGU1K332MELA	Nichicon	3300 µF	80 V	±20%	25.00	47.00	10.00	3000 Hrs	Active
SLP332M080E5P3	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	30.00	35.00	10.00	3000 Hrs	Active
SLP332M080H3P3	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	35.00	30.00	10.00	3000 Hrs	Active
381LX332M080J052	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	25.00	52.00	10.00	3000 Hrs	Active

Engineering Selection Recommendations

Preferred Direct Substitutes:

The 381LX332M080J052 (Cornell Dubilier Electronics) and LGU1K332MELA (Nichicon) are the most suitable direct replacements for the ECO-S1KA332CA. Both maintain identical capacitance, voltage rating, tolerance, and lead spacing. The 381LX332M080J052 matches the original part's physical dimensions exactly (25.00 mm diameter, 52.00 mm height) and carries ROHS3 compliance with unlimited moisture sensitivity rating. The LGU1K332MELA provides equivalent electrical performance with a slightly reduced height (47.00 mm) and ROHS3 compliance.

Active Product Alternatives:

The 80MXG3300MEFCSN25X40 (Rubycon MXG series) offers dimensional compatibility with the original part (25.00 mm diameter) and maintains the 3000-hour lifetime specification. The B41252A338M (EPCOS - TDK Electronics) provides near-identical dimensions and active product status, though with a reduced lifetime rating of 2000 hours at 105°C compared to the original 3000 hours.

Dimensional Variants:

The 80MXG3300MEFCSN22X50 (Rubycon) and CDE SLP series parts (SLP332M080E5P3, SLP332M080H3P3) satisfy all electrical specifications but feature different physical dimensions. These are suitable only when PCB layout constraints permit alternative form factors while maintaining the 10.00 mm lead spacing.

All substitute parts listed carry active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the ECO-S1KA332CA be replaced with any of these substitute parts in existing designs?

A: Direct substitution is possible only when the physical dimensions and lead spacing are compatible with the PCB layout. The 381LX332M080J052 and LGU1K332MELA are dimensionally compatible with the original part. Other substitutes require verification of available PCB space before implementation.

Q: What is the significance of the 3000-hour versus 2000-hour lifetime rating?

A: The original ECO-S1KA332CA and most substitute parts are rated for 3000 hours at 105°C. The B41252A338M carries a 2000-hour rating, which may impact long-term reliability in applications requiring extended operational life at elevated temperatures. Selection should align with system lifetime requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes, all listed substitute parts carry ROHS3 compliance status, ensuring compatibility with current regulatory requirements and procurement standards.

Q: How does lead spacing affect substitution?

A: All substitute parts maintain the 10.00 mm lead spacing of the original ECO-S1KA332CA, ensuring compatibility with existing through-hole PCB footprints. This parameter is non-negotiable for direct substitution.

Q: What role does ESR (Equivalent Series Resistance) play in substitution?

A: The original part specifies 65 mOhm @ 120 Hz. While some substitute parts do not list ESR values, all maintain the same capacitance, voltage, and tolerance specifications. ESR differences may affect ripple current handling in high-frequency applications; verification is recommended for noise-sensitive circuits.

Q: Can dimensional variants be used if the original dimensions are not available?

A: Dimensional variants such as the SLP332M080E5P3 (30.00 mm diameter, 35.00 mm height) and SLP332M080H3P3 (35.00 mm diameter, 30.00 mm height) are electrically equivalent but require PCB layout modification. These are suitable only when space constraints permit alternative form factors.

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