ECO-S2DP122DA Equivalent & Substitute Parts

Part Overview

The ECO-S2DP122DA is a 1200 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a 3000-hour lifetime rating at 85°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	200 V
Tolerance	±20%
ESR @ 120 Hz	166 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Diameter	1.181" (30.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitute parts for the ECO-S2DP122DA are categorized based on electrical and mechanical compatibility. The primary substitution criteria are:

Capacitance: 1200 µF (exact match required)
Voltage Rating: 200 V minimum (equal or higher acceptable for upgrades)
Tolerance: ±20%
Package: Radial, Can - Snap-In
Lead Spacing: 0.394" (10.00 mm)
Diameter: 1.181" (30.00 mm)
Mounting: Through Hole
Operating Temperature: -40°C ~ 85°C minimum
Lifetime: 3000 Hrs @ 85°C (baseline requirement)

Parts are classified as Direct Equivalents (matching all electrical and mechanical parameters), Upgrades (higher voltage rating with same physical footprint), or Similar (minor deviations in secondary parameters such as ESR or ripple current specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 120 Hz	Lifetime @ 85°C	Height (Max)	Status	RoHS
ECO-S2DP122DA	Panasonic	1200 µF	200 V	166 mOhm	3000 Hrs	1.772" (45.00 mm)	Obsolete	Non-compliant
LLS2D122MELB	Nichicon	1200 µF	200 V	—	3000 Hrs	1.378" (35.00 mm)	Active	ROHS3 Compliant
SLPX122M200E7P3	Cornell Dubilier Electronics	1200 µF	200 V	166 mOhm	3000 Hrs	1.575" (40.00 mm)	Active	ROHS3 Compliant
LLS2E122MELB	Nichicon	1200 µF	250 V	—	3000 Hrs	1.772" (45.00 mm)	Active	ROHS3 Compliant
SLPX122M220E4P3	Cornell Dubilier Electronics	1200 µF	220 V	166 mOhm	3000 Hrs	1.772" (45.00 mm)	Active	ROHS3 Compliant
LPX122M200E4P3	Cornell Dubilier Electronics	1200 µF	200 V	166 mOhm	1000 Hrs	1.772" (45.00 mm)	Active	ROHS3 Compliant
MAL215732122E3	Vishay Beyschlag/Draloric/BC Components	1200 µF	200 V	200 mOhm @ 100 Hz	3000 Hrs	1.850" (47.00 mm)	Active	ROHS3 Compliant
SLPX122M200E4P3	Cornell Dubilier Electronics	1200 µF	200 V	166 mOhm	3000 Hrs	1.772" (45.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Preferred for Direct Replacement)

SLPX122M200E4P3 and SLPX122M200E7P3 from Cornell Dubilier Electronics match the ECO-S2DP122DA across all critical electrical parameters: 1200 µF capacitance, 200 V voltage rating, 166 mOhm ESR @ 120 Hz, and 3000-hour lifetime at 85°C. Both are ROHS3 compliant and active products. SLPX122M200E4P3 offers the closest height match at 1.772" (45.00 mm), identical to the original part.

Direct Equivalent with Reduced Height

LLS2D122MELB from Nichicon provides electrical equivalence with a reduced height of 1.378" (35.00 mm), enabling space optimization in applications where vertical clearance permits. This part maintains 1200 µF capacitance, 200 V rating, and 3000-hour lifetime. ESR data is not provided; confirm compatibility with ripple current requirements before selection.

Voltage Upgrade Options

LLS2E122MELB (250 V) and SLPX122M220E4P3 (220 V) provide higher voltage ratings while maintaining 1200 µF capacitance and 3000-hour lifetime. These upgrades are suitable for applications requiring increased voltage margin or operating in higher-voltage environments. Both are ROHS3 compliant and active products.

Reduced Lifetime Alternative

LPX122M200E4P3 from Cornell Dubilier Electronics matches electrical parameters but specifies 1000 Hrs @ 85°C lifetime versus the 3000-hour baseline. This part is suitable only for applications with lower reliability requirements or shorter service life expectations.

Higher ESR Alternative

MAL215732122E3 from Vishay Beyschlag/Draloric/BC Components specifies 200 mOhm ESR @ 100 Hz, slightly elevated compared to the 166 mOhm baseline. Operating temperature range is -25°C ~ 85°C, narrower than the original -40°C specification. This part is designated for audio applications and is suitable only where the reduced low-temperature capability is acceptable.

Frequently Asked Questions (FAQ)

Q: Can SLPX122M200E7P3 directly replace ECO-S2DP122DA?

A: Yes. SLPX122M200E7P3 matches all critical electrical parameters: 1200 µF, 200 V, 166 mOhm ESR @ 120 Hz, and 3000-hour lifetime at 85°C. Physical dimensions are compatible with the through-hole snap-in package. The part is ROHS3 compliant and currently in active production.

Q: What is the difference between SLPX122M200E4P3 and SLPX122M200E7P3?

A: Both parts share identical electrical specifications. The primary difference is height: SLPX122M200E4P3 measures 1.772" (45.00 mm), matching the original ECO-S2DP122DA, while SLPX122M200E7P3 measures 1.575" (40.00 mm). Selection depends on available vertical clearance in the application.

Q: Can I use LLS2D122MELB as a replacement?

A: LLS2D122MELB is electrically compatible with matching capacitance, voltage, and lifetime specifications. However, its reduced height of 1.378" (35.00 mm) requires verification that the application accommodates the dimensional change. ESR data is not provided; confirm ripple current performance meets application requirements.

Q: Are voltage upgrade options (250 V, 220 V) safe substitutes?

A: Yes. Higher voltage ratings provide increased safety margin and are electrically compatible with 200 V applications. LLS2E122MELB (250 V) and SLPX122M220E4P3 (220 V) maintain identical capacitance and lifetime specifications. Physical dimensions remain compatible with the through-hole snap-in package.

Q: Why is LPX122M200E4P3 listed as a similar part rather than a direct equivalent?

A: LPX122M200E4P3 specifies 1000 Hrs @ 85°C lifetime, reduced from the 3000-hour baseline of ECO-S2DP122DA. This part is suitable only for applications with lower reliability requirements or shorter service life expectations. All other electrical parameters match the original specification.

Q: What does the height difference mean for my design?

A: Height variations affect available vertical clearance on the PCB. LLS2D122MELB at 1.378" (35.00 mm) provides space savings. SLPX122M200E4P3 and SLPX122M220E4P3 at 1.772" (45.00 mm) match the original height. MAL215732122E3 at 1.850" (47.00 mm) requires additional clearance. Verify PCB layout accommodates the selected part's dimensions.

Q: Is RoHS compliance required for my application?

A: The original ECO-S2DP122DA is RoHS non-compliant. All listed substitute parts are ROHS3 compliant, meeting current environmental regulations. If RoHS compliance is mandatory for your design, all recommended substitutes satisfy this requirement.

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