ECO-S2DP821EA Equivalent & Substitute Parts

Part Overview

The ECO-S2DP821EA is a 820 µF, 200 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-UP series. This radial, can-style snap-in capacitor is rated for general-purpose applications with a 3000-hour lifetime at 85°C and an operating temperature range of -40°C to 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 specification.

Key Parameters

Parameter	Value
Capacitance	820 µF
Voltage Rating	200 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Polarization	Polar
Operating Temperature Range	-40°C to 85°C
Lifetime @ Temperature	3000 Hrs @ 85°C

Substitute Part Grouping Explanation

Substitution for the ECO-S2DP821EA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 820 µF
Voltage Rating: 200 V
Tolerance: ±20%
Polarization: Polar
Lead Spacing: 0.394" (10.00 mm)
Package Type: Radial, Can - Snap-In
Mounting Type: Through Hole

Allowable Variations:

Operating Temperature Range: May extend beyond -40°C to 85°C (upgrades acceptable)
Lifetime @ Temperature: May equal or exceed 3000 Hrs @ 85°C
ESR (Equivalent Series Resistance): Variations acceptable within manufacturer specifications
Physical Dimensions (Diameter/Height): Limited variation acceptable if lead spacing and mounting remain compatible

Substitute parts are categorized as follows:

Direct Equivalents: Parts meeting all critical parameters with identical or superior thermal and electrical performance characteristics.

Upgrades: Parts exceeding the original specification in thermal rating or lifetime, suitable for enhanced reliability requirements.

Similar Parts: Parts meeting all critical electrical parameters with variations in physical dimensions or thermal ratings, requiring mechanical compatibility verification.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ Temp	Operating Temp Range	Size (Dia × Height)	Status
ECO-S2DP821EA	Panasonic	820 µF	200 V	±20%	222 mOhm	3000 Hrs @ 85°C	-40°C to 85°C	1.378" × 0.984"	Obsolete
380LX821M200A012	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	3000 Hrs @ 85°C	-40°C to 85°C	1.378" × 1.063"	Active
LGU2D821MELC	Nichicon	820 µF	200 V	±20%	Not Specified	3000 Hrs @ 105°C	-40°C to 105°C	1.378" × 0.984"	Active
LGW2D821MELC25	Nichicon	820 µF	200 V	±20%	Not Specified	3000 Hrs @ 105°C	-40°C to 105°C	1.378" × 0.984"	Active
380LQ821M200H042	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	2000 Hrs @ 85°C	-40°C to 85°C	0.866" × 1.654"	Active
380LQ821M200K012	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	2000 Hrs @ 85°C	-40°C to 85°C	1.181" × 1.063"	Active
LPX821M200C4P3	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	1000 Hrs @ 85°C	-40°C to 85°C	0.984" × 1.772"	Active
LPX821M200E5P3	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	1000 Hrs @ 85°C	-40°C to 85°C	1.181" × 1.378"	Active
LPX821M200H3P3	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	1000 Hrs @ 85°C	-40°C to 85°C	1.378" × 1.181"	Active
SLPX821M200A9P3	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	3000 Hrs @ 85°C	-40°C to 85°C	0.866" × 1.969"	Active
SLPX821M200C7P3	Cornell Dubilier Electronics	820 µF	200 V	±20%	243 mOhm	3000 Hrs @ 85°C	-40°C to 85°C	0.984" × 1.575"	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Choice):

380LX821M200A012 (Cornell Dubilier Electronics) is the primary direct equivalent. It matches all critical electrical parameters and maintains the 3000-hour lifetime at 85°C. The part is ROHS3 compliant and REACH unaffected, providing regulatory alignment. Physical dimensions differ slightly in height (1.063" vs. 0.984"), but lead spacing and mounting type remain identical, ensuring mechanical compatibility in standard through-hole applications.

Upgrade Options (Enhanced Reliability):

LGU2D821MELC and LGW2D821MELC25 (Nichicon) both provide thermal upgrades with 3000-hour lifetimes at 105°C and extended operating temperature ranges to 105°C. Both are ROHS3 compliant and REACH unaffected. LGU2D821MELC maintains the original physical dimensions (1.378" × 0.984"), while LGW2D821MELC25 offers higher ripple current capability (3.48 A @ 120 Hz vs. 2.93 A @ 120 Hz). These upgrades are suitable for applications requiring enhanced thermal margin or higher ripple current handling.

Alternative Selections (Conditional Use):

SLPX821M200C7P3 and SLPX821M200A9P3 (Cornell Dubilier Electronics) maintain the 3000-hour lifetime at 85°C with ROHS3 compliance. Physical dimensions vary significantly, requiring mechanical compatibility verification before selection. These parts are suitable only when physical space constraints permit the alternative form factors.

LPX series parts (LPX821M200C4P3, LPX821M200E5P3, LPX821M200H3P3) provide 1000-hour lifetimes at 85°C with ROHS3 compliance. These are suitable only for applications where reduced thermal lifetime is acceptable or where cost optimization is prioritized over extended service life.

380LQ series parts (380LQ821M200H042, 380LQ821M200K012) provide 2000-hour lifetimes at 85°C with ROHS3 compliance. These represent intermediate thermal performance and are suitable for applications where 3000-hour lifetime is not required.

Frequently Asked Questions (FAQ)

Q: Can I use LGU2D821MELC or LGW2D821MELC25 as direct replacements for ECO-S2DP821EA?

A: Yes. Both Nichicon parts meet all critical electrical parameters (820 µF, 200 V, ±20% tolerance, polar, 10 mm lead spacing, snap-in package). Both maintain 3000-hour lifetimes and offer thermal upgrades to 105°C operating range. LGU2D821MELC matches the original physical dimensions exactly (1.378" diameter × 0.984" height). LGW2D821MELC25 has identical diameter and height but offers higher ripple current capability. Both are ROHS3 compliant and REACH unaffected.

Q: What is the difference between the SLPX and LPX series parts?

A: SLPX series (SLPX821M200A9P3, SLPX821M200C7P3) maintains 3000-hour lifetime at 85°C, matching the original ECO-S2DP821EA thermal rating. LPX series (LPX821M200C4P3, LPX821M200E5P3, LPX821M200H3P3) provides only 1000-hour lifetime at 85°C. Both series use identical electrical specifications (820 µF, 200 V, ±20% tolerance). Physical dimensions differ between parts within each series. SLPX parts are preferred when thermal lifetime matching is required.

Q: Are there physical dimension constraints I should consider?

A: Yes. The original ECO-S2DP821EA measures 1.378" diameter × 0.984" height. Direct equivalent 380LX821M200A012 is slightly taller (1.063" height). Nichicon LGU2D821MELC and LGW2D821MELC25 match the original dimensions exactly. SLPX and LPX series parts vary significantly in both diameter and height. Verify available PCB space and mounting clearance before selecting alternatives with different physical dimensions.

Q: Which substitute part offers the best performance upgrade?

A: LGW2D821MELC25 (Nichicon) provides the most comprehensive upgrade: 3000-hour lifetime at 105°C (vs. 3000 hours at 85°C), extended operating temperature to 105°C, and highest ripple current capability at 3.48 A @ 120 Hz. It maintains identical physical dimensions to the original part and is ROHS3 compliant. This part is suitable for applications requiring enhanced thermal margin and higher ripple current handling without physical redesign.

Q: Can I use 380LQ821M200H042 or 380LQ821M200K012 as replacements?

A: These parts meet all critical electrical parameters but provide reduced thermal lifetime (2000 hours at 85°C vs. 3000 hours). They are suitable only for applications where the reduced thermal rating is acceptable. Physical dimensions differ significantly from the original part, requiring mechanical compatibility verification. Both are ROHS3 compliant and REACH unaffected.

Q: What does "ROHS3 Compliant" and "REACH Unaffected" mean for my selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. REACH unaffected status indicates the part is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) restrictions. These certifications ensure regulatory compliance for applications in regulated markets. All active substitute parts listed carry ROHS3 compliance; Nichicon parts are REACH unaffected, while Cornell Dubilier parts vary by series.

Q: Is ESR (Equivalent Series Resistance) important for my application?

A: ESR affects ripple current handling and heat generation. The original ECO-S2DP821EA specifies 222 mOhm @ 120 Hz. Most substitute parts specify 243 mOhm, a minor increase. Nichicon parts do not specify ESR but provide higher ripple current ratings, indicating optimized internal design. For applications sensitive to ESR, verify the specific ripple current requirements against the substitute part's ripple current ratings at your operating frequency.

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