ECO-S1CA393DA Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S1CA393DA is a 39000 µF, 16 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 105°C and is rated for general-purpose applications requiring high capacitance values in compact form factors.

Substiute Parts

ECO-S1CA393DA

Panasonic Electronic ComponentsIn Stock: 1042ECO-S1CA393DA Datasheet

Current PartRFQ

LGY1C393MELB50

NichiconIn Stock: 273804LGY1C393MELB50 Datasheet

UpgradeRFQ

B41252A4399M

EPCOS - TDK ElectronicsIn Stock: 975B41252A4399M Datasheet

SimilarRFQ

SLP393M016E4P3

Cornell Dubilier Electronics (CDE)In Stock: 755SLP393M016E4P3 Datasheet

SimilarRFQ

SLP393M016H7P3

Cornell Dubilier Electronics (CDE)In Stock: 871SLP393M016H7P3 Datasheet

SimilarRFQ

381LX393M016K052

Cornell Dubilier Electronics (CDE)In Stock: 752381LX393M016K052 Datasheet

Parametric EquivalentRFQ

LGU1C393MELB

NichiconIn Stock: 1717LGU1C393MELB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S1CA393DA is determined by strict adherence to the following parameters:

Critical Parameters (Must Match Exactly):

• Capacitance: 39000 µF
• Voltage Rating: 16 V
• Tolerance: ±20%
• Polarization: Polar
• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Lead Spacing: 0.394" (10.00mm)
• Operating Temperature Range: -40°C to 105°C

Allowable Variations:

• Lifetime @ Temperature: May differ (3000 Hrs, 5000 Hrs acceptable)
• ESR (Equivalent Series Resistance): May differ or be unspecified
• Ripple Current ratings: May vary within acceptable operating margins
• Physical dimensions (diameter, height): Minor variations permitted if mechanical fit is maintained
• Product Status: Active parts preferred over obsolete

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the original part.

Parameter Comparison

Engineering Selection Recommendations

Upgrade Path (Preferred): LGY1C393MELB50 (Nichicon) offers the longest operational lifetime at 5000 hours @ 105°C, exceeding the original part's 3000-hour rating. This part is active, ROHS3 compliant, and maintains identical mechanical and electrical specifications. Inventory availability is substantial at 273,782 units.

Direct Equivalents (Recommended): 381LX393M016K052 and LGU1C393MELB both provide parametric equivalence with 3000-hour lifetimes matching the original part. Both are active, ROHS3 compliant, and maintain the original 1.181" diameter × 2.047" height dimensions. These parts are suitable for direct replacement without design modification.

Alternative Selections (Conditional): B41252A4399M (EPCOS - TDK Electronics) is mechanically and electrically compatible but features a reduced 2000-hour lifetime. Selection is appropriate only when extended operational life is not a design requirement.

SLP393M016E4P3 and SLP393M016H7P3 (Cornell Dubilier Electronics) feature lower ESR values (17 mOhm) and are active, ROHS3 compliant parts. SLP393M016E4P3 maintains the original height (1.772" vs. 2.047"), while SLP393M016H7P3 features a larger diameter (1.378" vs. 1.181"). Mechanical fit verification is required before selection.

Compliance Considerations: All substitute parts listed are ROHS3 compliant or unaffected by REACH regulations, suitable for applications requiring environmental compliance. The original ECO-S1CA393DA carries REACH Affected status; migration to compliant alternatives is recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use LGY1C393MELB50 as a direct replacement for ECO-S1CA393DA? A: Yes. LGY1C393MELB50 maintains identical capacitance (39000 µF), voltage rating (16 V), tolerance (±20%), package type (radial snap-in), and mechanical dimensions. The part is active and ROHS3 compliant, with extended 5000-hour lifetime at 105°C.

Q: What is the difference between LGY1C393MELB50 and LGU1C393MELB? A: Both are Nichicon 39000 µF, 16 V aluminum electrolytic capacitors with identical mechanical specifications. LGY1C393MELB50 offers 5000-hour lifetime at 105°C, while LGU1C393MELB provides 3000-hour lifetime. LGY1C393MELB50 is the preferred upgrade option.

Q: Will SLP393M016E4P3 fit in the same PCB footprint as the original part? A: SLP393M016E4P3 maintains the same lead spacing (0.394" / 10.00mm) and diameter (1.181" / 30.00mm) but has reduced height (1.772" vs. 2.047"). Mechanical clearance verification is required, but the part is generally compatible with standard through-hole mounting.

Q: Why does B41252A4399M have a shorter lifetime than other options? A: B41252A4399M is rated for 2000 hours @ 105°C, compared to 3000-5000 hours for other substitutes. This part remains electrically and mechanically compatible but is suitable only for applications where extended operational life is not required.

Q: Are all substitute parts ROHS3 compliant? A: All listed substitute parts are either ROHS3 compliant or REACH unaffected. The original ECO-S1CA393DA carries REACH Affected status. For new designs requiring environmental compliance, any of the listed substitutes is appropriate.

Q: What does ESR (Equivalent Series Resistance) mean for capacitor selection? A: ESR affects ripple current handling and heat generation. Lower ESR values (17 mOhm in CDE parts vs. 22 mOhm in the original) indicate better high-frequency performance. For general-purpose applications, both values are acceptable; selection depends on specific ripple current requirements.

Q: Can I use SLP393M016H7P3 if my PCB has limited vertical clearance? A: SLP393M016H7P3 has reduced height (1.575" vs. 2.047") but increased diameter (1.378" vs. 1.181"). Verify both horizontal and vertical clearance before selection. The part maintains all electrical specifications and is mechanically compatible with standard through-hole mounting.