Equivalent & Substitute Parts for ECO-S1VP183DA

Part Overview

The ECO-S1VP183DA is an 18000 µF, 35 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Capacitance	18000 µF
Voltage Rating	35 V
Tolerance	±20%
ESR @ 120 Hz	30 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.181" (30.00 mm)
Height	1.772" (45.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the ECO-S1VP183DA is determined by the following critical parameters:

Electrical Match: Capacitance (18000 µF), voltage rating (35 V), and tolerance (±20%) must be identical
Thermal Performance: Lifetime rating at 85°C must meet or exceed 3000 hours
Mechanical Compatibility: Lead spacing (10.00 mm), case diameter, and height must accommodate the original mounting footprint
Package Type: Radial, can snap-in configuration with through-hole mounting

Substitute parts are classified into two categories:

Direct Substitutes maintain identical or near-identical physical dimensions and electrical characteristics, allowing drop-in replacement without circuit board modification.

Similar Substitutes share the same electrical specifications and package type but may have dimensional variations (case diameter or height) that require mechanical verification before installation.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 120 Hz	Lifetime @ 85°C	Case Dia (mm)	Height (mm)	Product Status
ECO-S1VP183DA	Panasonic	18000 µF	35 V	30 mOhm	3000 Hrs	30.00	45.00	Obsolete
380LX183M035K452	Cornell Dubilier Electronics	18000 µF	35 V	480 mOhm	3000 Hrs	30.00	47.00	Active
SLPX183M035E4P3	Cornell Dubilier Electronics	18000 µF	35 V	29 mOhm	3000 Hrs	30.00	45.00	Active
380LX183M035A032	Cornell Dubilier Electronics	18000 µF	35 V	480 mOhm	3000 Hrs	35.00	37.00	Active
B41231A7189M000	EPCOS - TDK Electronics	18000 µF	35 V	Not Specified	2000 Hrs	30.00	47.00	Active
SLPX183M035H7P3	Cornell Dubilier Electronics	18000 µF	35 V	29 mOhm	3000 Hrs	35.00	40.00	Active

Engineering Selection Recommendations

SLPX183M035E4P3 (Cornell Dubilier Electronics) is the primary direct substitute. It matches the original part's case diameter (30.00 mm) and height (45.00 mm) with equivalent ESR (29 mOhm vs. 30 mOhm) and identical 3000-hour lifetime rating at 85°C. This part is ROHS3 compliant and currently in active production with 989 units in stock.

380LX183M035K452 (Cornell Dubilier Electronics) provides an alternative direct substitute with identical case diameter (30.00 mm) but slightly increased height (47.00 mm). ESR is higher at 480 mOhm, which may impact ripple current performance in noise-sensitive applications. This part is ROHS3 compliant and active with 1828 units available.

380LX183M035A032 (Cornell Dubilier Electronics) and SLPX183M035H7P3 (Cornell Dubilier Electronics) are similar substitutes with enlarged case diameters (35.00 mm). These require mechanical verification to confirm clearance in the original mounting location. Both maintain 3000-hour lifetime ratings and ROHS3 compliance.

B41231A7189M000 (EPCOS - TDK Electronics) is a similar substitute with reduced lifetime rating (2000 hours at 85°C versus 3000 hours). Use only when thermal stress is minimal or system design accommodates shorter component life. ESR data is not provided for this part.

Frequently Asked Questions (FAQ)

Q: Can SLPX183M035E4P3 replace ECO-S1VP183DA without circuit board modification?

A: Yes. SLPX183M035E4P3 maintains identical case diameter (30.00 mm) and height (45.00 mm) with equivalent ESR performance, enabling direct drop-in replacement on the original circuit board.

Q: Why does 380LX183M035K452 have higher ESR than the original part?

A: ESR varies by manufacturer design and internal construction. The 380LX series uses a different internal architecture, resulting in 480 mOhm ESR compared to the original 30 mOhm. Applications sensitive to ripple current or thermal dissipation should verify compatibility before selection.

Q: Are 380LX183M035A032 and SLPX183M035H7P3 physically compatible with the original mounting?

A: These parts have enlarged case diameters (35.00 mm versus 30.00 mm). Physical clearance must be verified on the circuit board before installation. Height variations also differ from the original design.

Q: What is the impact of B41231A7189M000's reduced lifetime rating?

A: B41231A7189M000 is rated for 2000 hours at 85°C versus 3000 hours for the original part. This represents a 33% reduction in expected operational life under thermal stress. Use only in applications where reduced lifetime is acceptable or thermal operating conditions are below 85°C.

Q: Are all substitute parts RoHS compliant?

A: SLPX183M035E4P3, 380LX183M035K452, 380LX183M035A032, B41231A7189M000, and SLPX183M035H7P3 are all ROHS3 compliant. The original ECO-S1VP183DA is obsolete and compliance status is not applicable for new procurement.

Q: Which substitute offers the best ESR match to the original part?

A: SLPX183M035E4P3 provides the closest ESR match at 29 mOhm, compared to the original 30 mOhm. This part also maintains identical physical dimensions and 3000-hour lifetime rating.

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