ECO-S2DP122EX Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S2DP122EX is a 1200 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package with 3000 hours lifetime at 85°C. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	200 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Mounting Type	Through Hole
ESR @ 120 Hz	166 mOhm
Lifetime @ 85°C	3000 Hours
Operating Temperature Range	-40°C to 85°C

Substitute Part Grouping Explanation

Substitution is determined by matching the following critical parameters across all candidates:

Capacitance: 1200 µF (exact match required)
Voltage Rating: 200 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)
Polarization: Polar (exact match required)

Parts are grouped into three categories:

Upgrade Substitute: LGW2D122MELC30 (Nichicon) - Meets all critical parameters with enhanced operating temperature range (-40°C to 105°C) and higher ripple current ratings.

Similar Substitutes: 380LQ122M200H052, LPX122M200E4P3, LPX122M200H5P3, SLPX122M200C9P3, SLPX122M200E4P3, SLPX122M200H5P3 (Cornell Dubilier Electronics) - Meet all critical parameters with variations in physical dimensions and lifetime specifications.

Parametric Equivalent: LLS2D122MELC (Nichicon) - Meets all critical parameters with identical physical dimensions to the main part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lead Spacing	Size (Dia)	Height (Max)	ESR @ 120 Hz	Lifetime @ Temp	Operating Temp	Product Status	RoHS Status
ECO-S2DP122EX	Panasonic	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	166 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	Obsolete	Not specified
LGW2D122MELC30	Nichicon	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	Not specified	3000 Hrs @ 105°C	-40°C ~ 105°C	Active	ROHS3 Compliant
380LQ122M200H052	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	0.866" (22.00 mm)	2.047" (52.00 mm)	166 mOhm	2000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
LPX122M200E4P3	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.181" (30.00 mm)	1.772" (45.00 mm)	166 mOhm	1000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
LPX122M200H5P3	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	166 mOhm	1000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
SLPX122M200C9P3	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	0.984" (25.00 mm)	1.969" (50.00 mm)	166 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
SLPX122M200E4P3	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.181" (30.00 mm)	1.772" (45.00 mm)	166 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
SLPX122M200H5P3	Cornell Dubilier Electronics	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	166 mOhm	3000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant
LLS2D122MELC	Nichicon	1200 µF	200 V	±20%	0.394" (10.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	Not specified	3000 Hrs @ 85°C	-40°C ~ 85°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Form Factor): LLS2D122MELC (Nichicon) and LGW2D122MELC30 (Nichicon) are preferred. Both maintain the same physical dimensions as ECO-S2DP122EX and are active products with ROHS3 compliance. LGW2D122MELC30 offers extended operating temperature range to 105°C.

For Space-Constrained Applications: SLPX122M200H5P3 (Cornell Dubilier Electronics) matches the exact physical dimensions of the main part and provides 3000 hours lifetime at 85°C with active product status and ROHS3 compliance.

For Applications with Relaxed Lifetime Requirements: LPX122M200H5P3 (Cornell Dubilier Electronics) matches physical dimensions but specifies 1000 hours lifetime at 85°C. This part is suitable only where reduced lifetime is acceptable.

For Applications with Dimensional Flexibility: 380LQ122M200H052, LPX122M200E4P3, SLPX122M200C9P3, and SLPX122M200E4P3 (Cornell Dubilier Electronics) are available with varying physical dimensions. All are active products with ROHS3 compliance. Selection depends on available PCB space and mounting constraints.

All substitute parts maintain the critical electrical parameters: 1200 µF capacitance, 200 V voltage rating, ±20% tolerance, 0.394" lead spacing, and through-hole radial snap-in package configuration.

Frequently Asked Questions (FAQ)

Q: Can SLPX122M200H5P3 be used as a direct replacement for ECO-S2DP122EX? A: Yes. Both parts share identical capacitance (1200 µF), voltage rating (200 V), tolerance (±20%), lead spacing (0.394"), and physical dimensions (1.378" diameter, 1.378" height). SLPX122M200H5P3 is an active product with ROHS3 compliance.

Q: What is the difference between LGW2D122MELC30 and LLS2D122MELC? A: Both are Nichicon products with identical electrical and physical specifications. LGW2D122MELC30 operates to 105°C, while LLS2D122MELC operates to 85°C. Both provide 3000 hours lifetime at their respective temperature ratings.

Q: Why do some substitute parts have different physical dimensions? A: Dimensional variations exist among manufacturers while maintaining the same electrical performance and lead spacing. Parts with different heights or diameters may require PCB layout verification to ensure mechanical clearance.

Q: Are all substitute parts RoHS compliant? A: Yes. All active substitute parts listed are ROHS3 compliant. The original ECO-S2DP122EX does not specify RoHS status as it is obsolete.

Q: What is the minimum lifetime requirement for substitution? A: The original part specifies 3000 hours at 85°C. Substitute parts with lower lifetime ratings (such as 1000 or 2000 hours) are listed but should be selected only if application requirements permit reduced lifetime.

Q: Can I use LPX122M200E4P3 in place of ECO-S2DP122EX? A: Electrical substitution is valid (1200 µF, 200 V, ±20%, 0.394" lead spacing). However, this part specifies only 1000 hours lifetime at 85°C compared to 3000 hours for the original. Use only if application lifetime requirements are reduced.

Q: What inventory levels are available for substitute parts? A: LGW2D122MELC30 (273,782 pcs), LLS2D122MELC (273,882 pcs), SLPX122M200H5P3 (1,054 pcs), SLPX122M200C9P3 (1,134 pcs), SLPX122M200E4P3 (747 pcs), 380LQ122M200H052 (716 pcs), LPX122M200H5P3 (678 pcs), and LPX122M200E4P3 (800 pcs) are in stock.

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