ECO-S1KP332BA Equivalent & Substitute Parts

Part Overview

The ECO-S1KP332BA is a 3300 µF, 80 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-UP series. This radial, can-style snap-in capacitor is designed for general-purpose applications with a rated lifetime of 3000 hours at 85°C. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this capacitance and voltage rating.

Key Parameters

Parameter	Value
Capacitance	3300 µF
Voltage Rating	80 V
Tolerance	±20%
ESR @ 120 Hz	85 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature Range	-40°C to 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	0.866" (22.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can - Snap-In

Substitute Part Grouping Explanation

Substitution for the ECO-S1KP332BA is determined by strict electrical and mechanical compatibility. All substitute parts must meet the following criteria:

Capacitance: 3300 µF (exact match)
Voltage Rating: 80 V (exact match)
Tolerance: ±20% (exact match)
Operating Temperature: -40°C to 85°C (exact match)
Lead Spacing: 0.394" (10.00 mm) (exact match)
Mounting Type: Through Hole, Radial, Can - Snap-In (exact match)
Polarization: Polar (exact match)

Substitute parts are classified into three categories:

Direct Substitutes maintain identical electrical performance and physical dimensions, providing drop-in replacement capability.

Similar Substitutes maintain core electrical parameters but may have variations in case diameter or height, requiring mechanical fit verification in the application.

Parametric Equivalents meet all critical electrical specifications but may have minor variations in ESR or ripple current ratings within acceptable engineering tolerances.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120 Hz	Lifetime @ 85°C	Case Dia (mm)	Height (mm)	Product Status	Inventory
ECO-S1KP332BA	Panasonic	3300 µF	80 V	±20%	85 mOhm	3000 Hrs	22.00	50.00	Obsolete	1132 Pcs
380LX332M080H052	Cornell Dubilier Electronics	3300 µF	80 V	±20%	85 mOhm	3000 Hrs	22.00	52.00	Active	1066 Pcs
B41231A338M	EPCOS - TDK Electronics	3300 µF	80 V	±20%	Not Specified	2000 Hrs	22.00	47.00	Active	1747 Pcs
LLS1K332MELZ	Nichicon	3300 µF	80 V	±20%	Not Specified	3000 Hrs	22.00	47.00	Active	1283 Pcs
380LX332M080J042	Cornell Dubilier Electronics	3300 µF	80 V	±20%	85 mOhm	3000 Hrs	25.00	42.00	Active	839 Pcs
380LX332M080K022	Cornell Dubilier Electronics	3300 µF	80 V	±20%	85 mOhm	3000 Hrs	30.00	32.00	Active	851 Pcs
SLPX332M080C7P3	Cornell Dubilier Electronics	3300 µF	80 V	±20%	101 mOhm	3000 Hrs	25.00	40.00	Active	3556 Pcs
SLPX332M080E3P3	Cornell Dubilier Electronics	3300 µF	80 V	±20%	101 mOhm	3000 Hrs	30.00	30.00	Active	9173 Pcs
SLPX332M080A9P3	Cornell Dubilier Electronics	3300 µF	80 V	±20%	101 mOhm	3000 Hrs	22.00	50.00	Active	41841 Pcs

Engineering Selection Recommendations

Direct Substitute (Preferred for Drop-In Replacement): The 380LX332M080H052 from Cornell Dubilier Electronics is the primary direct substitute. It maintains identical capacitance, voltage, tolerance, ESR, and lifetime specifications. The case diameter and lead spacing are identical to the ECO-S1KP332BA. Height variation of 2 mm (52 mm vs. 50 mm) is within typical mechanical tolerances for snap-in applications. This part is in active production status with ROHS3 compliance.

Parametric Equivalent (Highest Availability): The SLPX332M080A9P3 from Cornell Dubilier Electronics provides parametric equivalence with identical physical dimensions (22 mm diameter, 50 mm height) to the original part. ESR is slightly elevated at 101 mOhm versus 85 mOhm, but remains within acceptable operating parameters for general-purpose applications. This part has the highest inventory availability (41,841 pcs) and is in active production with ROHS3 compliance.

Alternative with Extended Lifetime: The LLS1K332MELZ from Nichicon matches all critical electrical parameters and maintains the 3000-hour lifetime rating. Physical dimensions are compact (22 mm diameter, 47 mm height), suitable for space-constrained applications. This part is in active production status with ROHS3 compliance.

Consideration for Reduced Lifetime Applications: The B41231A338M from EPCOS - TDK Electronics provides a cost-effective option with identical electrical parameters but reduced lifetime rating of 2000 hours at 85°C. This part is suitable only for applications where the reduced operational life is acceptable. It is in active production status with ROHS3 compliance and has high inventory availability (1,747 pcs).

Similar Substitutes (Mechanical Fit Verification Required): The 380LX332M080J042 and 380LX332M080K022 maintain identical electrical specifications but have increased case diameters (25 mm and 30 mm respectively). These parts require verification of mechanical fit within the application's physical constraints before selection.

All recommended substitutes maintain REACH compliance status and are classified under ECCN EAR99 and HTSUS 8532.22.0040, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can SLPX332M080A9P3 be used as a direct replacement for ECO-S1KP332BA?

A: Yes. The SLPX332M080A9P3 provides parametric equivalence with identical physical dimensions (22 mm diameter, 50 mm height, 10 mm lead spacing). The ESR specification of 101 mOhm is slightly higher than the original 85 mOhm but remains within acceptable operating parameters for general-purpose aluminum electrolytic capacitor applications. Both parts are rated for 3000 hours at 85°C.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes maintain identical physical dimensions and electrical specifications, providing true drop-in replacement capability. Similar substitutes maintain all critical electrical parameters (capacitance, voltage, tolerance, lifetime) but have variations in case diameter or height. Similar substitutes require mechanical fit verification in the application before selection.

Q: Why does the B41231A338M have a lower lifetime rating?

A: The B41231A338M is rated for 2000 hours at 85°C compared to 3000 hours for the original ECO-S1KP332BA. This reduced lifetime reflects the design characteristics of the EPCOS - TDK Electronics B41231 series. This part is suitable only for applications where the reduced operational life meets system requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts are ROHS3 compliant. The original ECO-S1KP332BA does not specify RoHS status, but all active production alternatives meet current RoHS3 requirements.

Q: What is the significance of ESR variation between substitute parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and heat generation. The original ECO-S1KP332BA specifies 85 mOhm at 120 Hz. Substitute parts with 101 mOhm ESR (SLPX series) will generate slightly more heat under identical ripple current conditions. For general-purpose applications, this variation is acceptable. For high-ripple-current applications, the lower ESR options (380LX series at 85 mOhm) are preferred.

Q: Can parts with different case diameters be used interchangeably?

A: No. Parts with different case diameters (22 mm, 25 mm, 30 mm) have different physical footprints. Mechanical fit verification is required before substitution. The snap-in mounting mechanism may not accommodate diameter variations without modification to the mounting hardware.

Q: What inventory considerations should guide part selection?

A: The SLPX332M080A9P3 has the highest inventory availability (41,841 pcs), followed by SLPX332M080E3P3 (9,173 pcs). For applications requiring immediate availability, these parts are preferred. The original ECO-S1KP332BA remains available (1,132 pcs) but is obsolete and not recommended for new designs.

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