ECO-S1CP393EA Equivalent & Substitute Parts

Part Overview

The ECO-S1CP393EA is a 39000 µF, 16 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 system support and new design implementations. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring high-capacitance energy storage.

Key Parameters

Parameter	Value
Capacitance	39000 µF
Voltage Rating	16 V
Tolerance	±20%
ESR @ 120Hz	21 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)
Height	1.457" (37.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the ECO-S1CP393EA is determined by strict equivalence across the following critical parameters:

Capacitance: 39000 µF (exact match required)
Voltage Rating: 16 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)
Operating Temperature Range: -40°C ~ 85°C (exact match required)

Substitute parts are classified into three categories based on compatibility level:

Direct Manufacturer Equivalent: SLPX393M016H5P3 (Cornell Dubilier Electronics) - Identical electrical and mechanical specifications with improved ESR performance and active product status.

Similar Manufacturer Parts: SLPX393M016E4P3, 380LX393M016K452, B41231B4399M000 (Cornell Dubilier Electronics, EPCOS - TDK Electronics) - Meet all critical parameters with variations in case dimensions and lifetime ratings.

Parametric Equivalents: 380LX393M016A032, LLS1C393MELC (Cornell Dubilier Electronics, Nichicon) - Satisfy all electrical and mechanical requirements with dimensional or performance variations.

Parameter Comparison

Parameter	ECO-S1CP393EA (Main)	SLPX393M016H5P3	SLPX393M016E4P3	380LX393M016K452	B41231B4399M000	380LX393M016A032	LLS1C393MELC
Manufacturer	Panasonic	CDE	CDE	CDE	EPCOS - TDK	CDE	Nichicon
Capacitance	39000 µF	39000 µF	39000 µF	39000 µF	39000 µF	39000 µF	39000 µF
Voltage Rating	16 V	16 V	16 V	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
ESR @ 120Hz	21 mOhm	17 mOhm	17 mOhm	22 mOhm	Not Specified	22 mOhm	Not Specified
Lifetime @ 85°C	3000 Hrs	3000 Hrs	3000 Hrs	3000 Hrs	2000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)	1.378" (35.00 mm)	1.181" (30.00 mm)	1.181" (30.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)
Height	1.457" (37.00 mm)	1.378" (35.00 mm)	1.772" (45.00 mm)	1.850" (47.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection: SLPX393M016H5P3 (Cornell Dubilier Electronics) is the direct manufacturer equivalent. This part maintains identical electrical specifications while offering improved ESR performance (17 mOhm vs. 21 mOhm) and active product status. It is ROHS3 compliant and carries equivalent mechanical dimensions to the original part.

Secondary Selection: 380LX393M016A032 (Cornell Dubilier Electronics) provides parametric equivalence with identical case diameter and height matching the original ECO-S1CP393EA. This part is ROHS3 compliant and maintains 3000-hour lifetime at 85°C.

Alternative Selection: B41231B4399M000 (EPCOS - TDK Electronics) offers mechanical compatibility with identical case dimensions. This part is ROHS3 compliant but specifies a reduced lifetime of 2000 hours at 85°C compared to the original 3000-hour rating.

Space-Constrained Applications: SLPX393M016E4P3 (Cornell Dubilier Electronics) accommodates applications with reduced vertical clearance, featuring a smaller case diameter (1.181" vs. 1.378") while maintaining all electrical parameters and 3000-hour lifetime rating. This part is ROHS3 compliant.

All recommended substitutes are active products with current manufacturing support and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SLPX393M016E4P3 be used as a direct replacement for ECO-S1CP393EA?

A: SLPX393M016E4P3 is electrically equivalent but features a smaller case diameter (1.181" vs. 1.378") and greater height (1.772" vs. 1.457"). Physical board layout compatibility must be verified before substitution.

Q: What is the difference between the substitute parts in terms of ESR performance?

A: ESR values vary among substitutes. SLPX393M016H5P3 and SLPX393M016E4P3 offer 17 mOhm ESR, while 380LX393M016K452 and 380LX393M016A032 specify 22 mOhm ESR. The original ECO-S1CP393EA rates 21 mOhm ESR. Lower ESR values reduce heat generation and improve ripple current handling.

Q: Is B41231B4399M000 suitable for long-term reliability applications?

A: B41231B4399M000 specifies 2000-hour lifetime at 85°C, compared to 3000 hours for the original part and most substitutes. Applications requiring extended operational life should prioritize alternatives with 3000-hour ratings.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant. The original ECO-S1CP393EA does not specify RoHS status.

Q: What are the critical parameters that must match for substitution?

A: Capacitance (39000 µF), voltage rating (16 V), tolerance (±20%), lead spacing (10.00 mm), package type (Radial, Can - Snap-In), and mounting type (Through Hole) must remain constant. Case diameter and height variations are acceptable if board layout permits.

Q: Can substitute parts with different case dimensions be used interchangeably?

A: Electrical substitution is possible, but mechanical board layout compatibility must be verified. Parts with reduced case diameter (30.00 mm) or increased height (45-47 mm) require PCB footprint validation before implementation.

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