ECO-S2GP331DA Equivalent & Substitute Parts

Part Overview

The ECO-S2GP331DA is a 330 µF, 400 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new production requirements. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	400 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Polarization	Polar
Operating Temperature	-25°C ~ 85°C
Lifetime @ 85°C	3000 Hrs

Substitute Part Grouping Explanation

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

Capacitance: 330 µF (exact match required)
Voltage Rating: 400 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Variations in ESR, ripple current ratings, physical height, and lifetime specifications are documented but do not disqualify substitution when the above criteria are satisfied.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 85°C	Height (Max)	Product Status
ECO-S2GP331DA	Panasonic	330 µF	400 V	±20%	553 mOhm	3000 Hrs	1.575" (40.00mm)	Obsolete
380LQ331M400K022	Cornell Dubilier Electronics	330 µF	400 V	±20%	603 mOhm	2000 Hrs	1.260" (32.00mm)	Active
380LX331M400K042	Cornell Dubilier Electronics	330 µF	400 V	±20%	550 mOhm	3000 Hrs	1.654" (42.00mm)	Active
400USG330MEFC30X30	Rubycon	330 µF	400 V	±20%	Not specified	3000 Hrs	1.260" (32.00mm)	Active
400USG330MEFCSN30X30	Rubycon	330 µF	400 V	±20%	Not specified	3000 Hrs	1.260" (32.00mm)	Active
B43501A9337M000	EPCOS - TDK Electronics	330 µF	400 V	±20%	200 mOhm	10000 Hrs	1.850" (47.00mm)	Not For New Designs
ESMM401VNN331MR35W	Chemi-Con	330 µF	400 V	±20%	1.005 Ohm	3000 Hrs	1.457" (37.00mm)	Active
ESMM401VSN331MR35S	Chemi-Con	330 µF	400 V	±20%	1.005 Ohm	3000 Hrs	1.457" (37.00mm)	Active
ESMM401VSN331MR35W	Chemi-Con	330 µF	400 V	±20%	1.055 Ohm	3000 Hrs	1.457" (37.00mm)	Active
LLS2G331MELB	Nichicon	330 µF	400 V	±20%	Not specified	3000 Hrs	1.378" (35.00mm)	Active
SLPX331M400E3P3	Cornell Dubilier Electronics	330 µF	400 V	±20%	603 mOhm	3000 Hrs	1.181" (30.00mm)	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Matching Lifetime)

380LX331M400K042, ESMM401VNN331MR35W, ESMM401VSN331MR35S, ESMM401VSN331MR35W, LLS2G331MELB, and SLPX331M400E3P3 are active products with 3000-hour lifetime ratings matching the original ECO-S2GP331DA specification. These parts are suitable for new designs and ongoing production.

Secondary Substitutes (Active Status, Reduced Lifetime)

380LQ331M400K022 is an active product with a 2000-hour lifetime rating, which is 1000 hours less than the original specification. This part is acceptable for applications where the reduced lifetime does not impact system requirements.

Legacy Substitute (Not For New Designs)

B43501A9337M000 carries a "Not For New Designs" status despite offering superior ESR (200 mOhm) and extended lifetime (10000 hours). This part should not be selected for new production unless legacy system support is the explicit requirement.

Compliance Considerations

ESMM401VNN331MR35W, ESMM401VSN331MR35S, ESMM401VSN331MR35W, and SLPX331M400E3P3 are RoHS3 compliant. 380LX331M400K042 and 380LQ331M400K022 are also RoHS3 compliant. 400USG330MEFC30X30 is RoHS non-compliant. Selection should align with system-level compliance requirements.

Physical Envelope Considerations

Height variations range from 1.181" (30.00mm) for SLPX331M400E3P3 to 1.850" (47.00mm) for B43501A9337M000. PCB layout constraints may eliminate certain candidates. The original ECO-S2GP331DA measures 1.575" (40.00mm) in height; substitutes with smaller envelopes provide additional design flexibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts directly into a circuit designed for the ECO-S2GP331DA?

A: Yes, provided the substitute meets all core parameters: 330 µF capacitance, 400 V voltage rating, ±20% tolerance, radial snap-in package, 10.00mm lead spacing, and through-hole mounting. Physical height differences may require PCB layout verification to ensure clearance.

Q: What is the significance of ESR variation among substitutes?

A: ESR (Equivalent Series Resistance) affects ripple current handling and thermal performance. The original part specifies 553 mOhm at 120 Hz. Substitutes range from 200 mOhm (B43501A9337M000) to 1.055 Ohm (ESMM401VSN331MR35W). Lower ESR generally improves performance in high-ripple-current applications; higher ESR may require thermal analysis in demanding circuits.

Q: Why is the ECO-S2GP331DA obsolete when active substitutes are available?

A: Obsolescence reflects Panasonic's discontinuation of the TS-UP series. Active substitutes from Cornell Dubilier Electronics, Rubycon, Chemi-Con, and Nichicon provide equivalent electrical performance and are currently manufactured.

Q: Does lifetime rating affect substitution eligibility?

A: Lifetime rating does not disqualify substitution but indicates expected operational duration at 85°C. The original 3000-hour specification is matched by 380LX331M400K042, Chemi-Con SMM series, LLS2G331MELB, and SLPX331M400E3P3. The 2000-hour rating of 380LQ331M400K022 and 10000-hour rating of B43501A9337M000 represent deviations that should be evaluated against system requirements.

Q: Are there height restrictions I should consider?

A: Yes. The original part is 1.575" (40.00mm) tall. Substitutes range from 1.181" to 1.850" in height. Verify PCB clearance, especially for components mounted near the capacitor or in confined spaces. Shorter substitutes like SLPX331M400E3P3 (1.181") offer layout advantages; taller options like B43501A9337M000 (1.850") may require design accommodation.

Q: Which substitute offers the best overall performance match?

A: 380LX331M400K042 provides the closest performance match with 550 mOhm ESR, 3000-hour lifetime, active status, and RoHS3 compliance. SLPX331M400E3P3 offers identical lifetime and compliance with a more compact 1.181" height, though ESR is slightly higher at 603 mOhm.

Q: Can I use 400USG330MEFC30X30 or 400USG330MEFCSN30X30 in RoHS-compliant applications?

A: 400USG330MEFC30X30 is RoHS non-compliant and should not be used in RoHS-regulated applications. 400USG330MEFCSN30X30 is RoHS3 compliant and is suitable for RoHS-regulated designs.

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