ECO-S1KA332EA Equivalent & Substitute Parts

Part Overview

The ECO-S1KA332EA is a 3300 µF, 80 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-HA series. This radial, can-style snap-in capacitor is rated for 3000 hours at 105°C with an ESR of 65 mOhm @ 120 Hz. The part is currently obsolete, making equivalent and substitute components necessary for ongoing system support and new designs requiring this capacitance and voltage specification.

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 Hours
Polarization	Polar
Applications	General Purpose

Substitute Part Grouping Explanation

Substitution for the ECO-S1KA332EA is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 3300 µF (exact match required)
Voltage Rating: 80 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C to 105°C (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

Lifetime @ 105°C: 3000 hours minimum
ESR @ 120 Hz: Comparable performance
Ripple Current ratings: Functional equivalence
Physical dimensions (diameter and height): Within acceptable mechanical constraints for PCB layout

Parts are grouped as direct equivalents when all primary criteria are met. Upgrades are identified when lifetime exceeds the original specification. Similar parts are listed when dimensional variations exist but electrical parameters remain compatible.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	ESR @ 120 Hz	Diameter	Height	Product Status
ECO-S1KA332EA	Panasonic Electronic Components	3300 µF	80 V	±20%	3000 Hrs	65 mOhm	1.378" (35.00 mm)	1.260" (32.00 mm)	Obsolete
80MXG3300MEFCSN30X30	Rubycon	3300 µF	80 V	±20%	3000 Hrs	—	1.181" (30.00 mm)	1.260" (32.00 mm)	Active
80MXG3300MEFCSN35X25	Rubycon	3300 µF	80 V	±20%	3000 Hrs	—	1.378" (35.00 mm)	1.063" (27.00 mm)	Active
B41252C338M	EPCOS - TDK Electronics	3300 µF	80 V	±20%	2000 Hrs	—	1.378" (35.00 mm)	1.260" (32.00 mm)	Active
SLP332M080H3P3	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	3000 Hrs	101 mOhm	1.378" (35.00 mm)	1.181" (30.00 mm)	Active
LGY1K332MELC30	Nichicon	3300 µF	80 V	±20%	5000 Hrs	—	1.378" (35.00 mm)	1.260" (32.00 mm)	Active
381LX332M080J052	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	3000 Hrs	—	0.984" (25.00 mm)	2.047" (52.00 mm)	Active
SLP332M080E5P3	Cornell Dubilier Electronics (CDE)	3300 µF	80 V	±20%	3000 Hrs	101 mOhm	1.181" (30.00 mm)	1.378" (35.00 mm)	Active
338LMB080M2ED	Cornell Dubilier / Illinois Capacitor	3300 µF	80 V	±20%	3000 Hrs	125.596 mOhm	1.378" (35.00 mm)	1.260" (32.00 mm)	Active
LGU1K332MELC	Nichicon	3300 µF	80 V	±20%	3000 Hrs	—	1.378" (35.00 mm)	1.260" (32.00 mm)	Active

Engineering Selection Recommendations

Direct Equivalents (Preferred for Pin-Compatible Replacement):

The following parts meet all primary substitution criteria with identical or superior specifications:

LGY1K332MELC30 (Nichicon): Offers extended lifetime of 5000 hours at 105°C versus the original 3000 hours. Identical physical dimensions (1.378" diameter × 1.260" height) and lead spacing. ROHS3 compliant. Active product status ensures long-term availability.
LGU1K332MELC (Nichicon): Matches all electrical parameters and physical dimensions of the original part. 3000-hour lifetime at 105°C. ROHS3 compliant. Active product status.
338LMB080M2ED (Cornell Dubilier / Illinois Capacitor): Identical dimensions and electrical specifications. 3000-hour lifetime. ROHS3 compliant. Active product status.

Dimensional Variants (Verify PCB Layout Compatibility):

80MXG3300MEFCSN35X25 (Rubycon): Matches diameter (1.378") but reduced height (1.063" vs. 1.260"). Verify clearance in target application. ROHS3 compliant. Active product status.
SLP332M080H3P3 (Cornell Dubilier Electronics): Matches diameter (1.378") but reduced height (1.181" vs. 1.260"). ESR of 101 mOhm @ 120 Hz. ROHS3 compliant. Active product status.
381LX332M080J052 (Cornell Dubilier Electronics): Smaller diameter (0.984") with increased height (2.047"). Verify PCB footprint compatibility. Highest inventory availability (4459 pcs). ROHS3 compliant. Active product status.
SLP332M080E5P3 (Cornell Dubilier Electronics): Smaller diameter (1.181") with increased height (1.378"). ESR of 101 mOhm @ 120 Hz. ROHS3 compliant. Active product status.
80MXG3300MEFCSN30X30 (Rubycon): Smaller diameter (1.181") with matching height (1.260"). ROHS3 compliant. Active product status.

Reduced Lifetime Alternative:

B41252C338M (EPCOS - TDK Electronics): Meets all electrical and dimensional specifications but with reduced lifetime of 2000 hours at 105°C versus 3000 hours. Use only when lifetime reduction is acceptable for the application. ROHS3 compliant. Active product status.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different physical dimensions?

A: Physical dimensions must be verified against your PCB layout and mechanical constraints. While all listed parts maintain the same lead spacing (0.394" / 10.00 mm) and through-hole mounting type, diameter and height variations may affect component placement, clearance, and thermal management. Verify that the substitute part fits within the available PCB space before implementation.

Q: What is the significance of ESR (Equivalent Series Resistance)?

A: ESR affects ripple current handling and heat dissipation. The original ECO-S1KA332EA has an ESR of 65 mOhm @ 120 Hz. Substitutes with higher ESR values (such as 101 mOhm or 125.596 mOhm) may generate additional heat under high ripple current conditions. For applications with stringent thermal or ripple current requirements, select substitutes with ESR values closest to the original specification.

Q: Why do some substitute parts have longer lifetimes?

A: Lifetime ratings reflect the expected operational duration at maximum rated temperature (105°C). The LGY1K332MELC30 offers 5000 hours versus the original 3000 hours, indicating improved thermal stability and component longevity. Extended lifetime parts provide enhanced reliability margins for critical applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original ECO-S1KA332EA is obsolete and does not carry RoHS certification. Substitutes ensure compliance with current environmental and regulatory standards.

Q: What is the difference between "Direct," "Similar," and "Parametric Equivalent" classifications?

A: Direct equivalents meet all primary electrical and mechanical criteria with identical or superior performance. Similar parts meet electrical specifications but have dimensional variations requiring PCB layout verification. Parametric equivalents meet all electrical and mechanical criteria but may have minor performance variations in secondary parameters such as ESR or ripple current ratings.

Q: Can I interchange parts with different capacitance tolerances?

A: No. All listed substitutes maintain the ±20% tolerance specification of the original part. Tolerance is a primary substitution criterion and cannot be varied without affecting circuit performance and design margins.

Q: How do I verify compatibility before implementation?

A: Confirm that the substitute part matches the original in capacitance (3300 µF), voltage rating (80 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (0.394" / 10.00 mm), and mounting type (Through Hole). Verify physical dimensions against your PCB layout. Review ESR and ripple current specifications for applications with high AC stress.

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