ECO-S2DP331CA Equivalent & Substitute Parts

Part Overview

The ECO-S2DP331CA is a 330 µF, 200 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 requiring 3000 hours of operational life at 85°C. The part is currently obsolete, making equivalent and substitute components necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	200 V
Tolerance	±20%
ESR @ 120 Hz	553 mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	0.984" (25.00 mm)
Height	0.984" (25.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Ripple Current @ 120 Hz	1.56 A

Substitute Part Grouping Explanation

Substitution of the ECO-S2DP331CA is determined by the following critical parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 200 V minimum (higher ratings acceptable for direct substitution)
Tolerance: ±20% (standard for this category)
Package Type: Radial, Can - Snap-In (mechanical compatibility)
Lead Spacing: 0.394" (10.00 mm) (PCB footprint requirement)
Mounting Type: Through Hole (assembly compatibility)
Operating Temperature Range: -40°C ~ 85°C minimum (functional requirement)
Lifetime: 3000 Hrs @ 85°C minimum (reliability requirement)

Substitute parts are categorized as follows:

Direct Substitutes maintain all critical parameters at 200 V rating with equivalent or superior performance characteristics.

Upgrade Substitutes provide enhanced performance through higher voltage ratings (220 V or 250 V) or extended temperature operation (105°C), while maintaining mechanical and electrical compatibility.

Similar Substitutes meet core electrical specifications but may have minor dimensional variations that require verification for specific applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 120 Hz	Lifetime @ Temp	Operating Temp	Case Dia	Height	Status
ECO-S2DP331CA	Panasonic	330 µF	200 V	553 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	0.984" (25 mm)	Obsolete
200USG330MEFCSN20X25	Rubycon	330 µF	200 V	Not specified	3000 Hrs @ 85°C	-40°C ~ 85°C	0.787" (20 mm)	1.063" (27 mm)	Active
380LX331M200J012	Cornell Dubilier Electronics	330 µF	200 V	470 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	1.063" (27 mm)	Active
LLS2D331MELZ	Nichicon	330 µF	200 V	Not specified	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22 mm)	0.984" (25 mm)	Active
SLPX331M220C1P3	Cornell Dubilier Electronics	330 µF	220 V	603 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	0.984" (25 mm)	Active
LGU2D331MELA	Nichicon	330 µF	200 V	Not specified	3000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25 mm)	0.984" (25 mm)	Active
LGU2P331MELA	Nichicon	330 µF	220 V	Not specified	3000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25 mm)	0.984" (25 mm)	Active
LGW2E331MELA25	Nichicon	330 µF	250 V	Not specified	3000 Hrs @ 105°C	-40°C ~ 105°C	0.984" (25 mm)	0.984" (25 mm)	Active
LLS2E331MELA	Nichicon	330 µF	250 V	Not specified	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	0.984" (25 mm)	Active
SLPX331M250C1P3	Cornell Dubilier Electronics	330 µF	250 V	603 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25 mm)	0.984" (25 mm)	Active
380LX331M200H022	Cornell Dubilier Electronics	330 µF	200 V	600 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22 mm)	1.260" (32 mm)	Active

Engineering Selection Recommendations

Direct Substitutes at 200 V Rating:

The 380LX331M200J012 (Cornell Dubilier Electronics) provides the closest electrical match with identical case diameter (0.984" / 25 mm) and active product status. ESR of 470 mOhm at 120 Hz is lower than the original 553 mOhm, indicating improved performance characteristics. Height increase to 1.063" (27 mm) requires PCB layout verification.

The LLS2D331MELZ (Nichicon) maintains original case diameter and height specifications with active status and ROHS3 compliance. Case diameter of 0.866" (22 mm) is smaller than the original, reducing board space requirements while maintaining electrical specifications.

Upgrade Substitutes with Enhanced Performance:

The LGU2D331MELA (Nichicon) offers extended temperature operation to 105°C with identical mechanical dimensions and active status. This upgrade maintains 200 V rating while providing superior thermal performance for applications requiring higher ambient temperature tolerance.

The LGU2P331MELA (Nichicon) provides 220 V rating with 105°C temperature capability, suitable for applications requiring voltage margin and thermal headroom. Identical case dimensions ensure direct mechanical compatibility.

The LGW2E331MELA25 (Nichicon) delivers 250 V rating with 105°C operation, offering maximum voltage and temperature margin. Identical case dimensions (0.984" × 0.984") ensure direct fit replacement.

The SLPX331M250C1P3 (Cornell Dubilier Electronics) provides 250 V rating with active status and ROHS3 compliance. Identical case dimensions and specified ESR of 603 mOhm support high-ripple-current applications.

Similar Substitutes with Dimensional Variations:

The 200USG330MEFCSN20X25 (Rubycon) meets electrical specifications but features reduced case diameter (0.787" / 20 mm) and increased height (1.063" / 27 mm). PCB footprint verification is required before selection.

The 380LX331M200H022 (Cornell Dubilier Electronics) maintains 200 V rating with active status but features reduced case diameter (0.866" / 22 mm) and significantly increased height (1.260" / 32 mm). Mechanical clearance verification is essential.

Frequently Asked Questions (FAQ)

Q: Can I use a 220 V or 250 V rated capacitor in place of the 200 V ECO-S2DP331CA?

A: Yes. Higher voltage-rated capacitors are electrically compatible with lower voltage circuit requirements. The 220 V and 250 V substitutes (LGU2P331MELA, LGW2E331MELA25, SLPX331M250C1P3) provide voltage margin while maintaining identical capacitance and tolerance specifications. Verify physical dimensions for PCB fit.

Q: What is the significance of ESR (Equivalent Series Resistance) in selecting a substitute?

A: ESR affects ripple current handling and heat generation. The original ECO-S2DP331CA specifies 553 mOhm at 120 Hz. Substitutes with lower ESR (such as 380LX331M200J012 at 470 mOhm) provide improved ripple current performance. Substitutes with higher ESR require verification that ripple current specifications remain within application limits.

Q: Are there mechanical compatibility concerns with substitute parts?

A: Yes. The original part specifies 0.984" (25 mm) case diameter and 0.984" (25 mm) height. Substitutes with different dimensions (such as 200USG330MEFCSN20X25 with 0.787" diameter and 1.063" height, or 380LX331M200H022 with 0.866" diameter and 1.260" height) require PCB layout verification to ensure adequate clearance and proper lead spacing alignment.

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

A: Direct substitutes maintain the original 200 V rating and 85°C temperature specification. Upgrade substitutes provide enhanced performance through higher voltage ratings (220 V or 250 V) or extended temperature operation (105°C). Both categories maintain the required 330 µF capacitance, ±20% tolerance, and 3000-hour lifetime specification.

Q: Which substitute offers the best thermal performance?

A: The LGU2D331MELA, LGU2P331MELA, and LGW2E331MELA25 (all Nichicon LGU and LGW series) specify 3000 hours of life at 105°C, compared to the original 85°C specification. These parts are suitable for applications requiring extended temperature operation or higher ambient conditions.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant. The original ECO-S2DP331CA is obsolete and does not carry active RoHS certification. Compliance verification is recommended for applications subject to RoHS requirements.

Q: What lead spacing should I verify when selecting a substitute?

A: All listed substitutes maintain the standard 0.394" (10.00 mm) lead spacing required for through-hole mounting. This specification ensures PCB footprint compatibility across all substitute options.

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