ECO-S2HP181CA Equivalent & Substitute Parts

Part Overview

The ECO-S2HP181CA is a 180 µF, 500 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring high-voltage energy storage and filtering.

Key Parameters

Parameter	Value
Capacitance	180 µF
Voltage Rating	500 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Operating Temperature Range	-25°C ~ 85°C
Lifetime @ Temperature	3000 Hrs @ 85°C
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S2HP181CA is determined by strict alignment with the following electrical and mechanical parameters:

Capacitance value: 180 µF (exact match required)
Voltage rating: 500 V (exact match required)
Tolerance: ±20% (exact match required)
Package configuration: Radial, Can - Snap-In (exact match required)
Lead spacing: 0.394" (10.00mm) (exact match required)
Mounting type: Through Hole (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed meet these core electrical and mechanical criteria. Physical dimensions (diameter and height) may vary within acceptable limits for snap-in mounting compatibility. Operating temperature range and lifetime ratings may exceed the original specification, providing enhanced performance margins.

Parameter Comparison

Parameter	ECO-S2HP181CA (Panasonic)	500USK180MEFCSN25X30 (Rubycon)	380LX181M500A032 (CDE)	LGN2H181MELA50 (Nichicon)
Capacitance	180 µF	180 µF	180 µF	180 µF
Voltage Rating	500 V	500 V	500 V	500 V
Tolerance	±20%	±20%	±20%	±20%
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature Range	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 105°C
Lifetime @ Temperature	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 105°C
Polarization	Polar	Polar	Polar	Polar
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three substitute parts—500USK180MEFCSN25X30 (Rubycon), 380LX181M500A032 (Cornell Dubilier Electronics), and LGN2H181MELA50 (Nichicon)—are active products with ROHS3 compliance, providing regulatory advantage over the obsolete ECO-S2HP181CA.

The Rubycon 500USK180MEFCSN25X30 maintains identical electrical specifications and operating temperature range to the original part, offering direct functional equivalence with the added benefit of active product status and ROHS3 compliance.

The Cornell Dubilier Electronics 380LX181M500A032 provides equivalent electrical performance with ROHS3 compliance and active availability. Physical dimensions differ slightly (1.378" diameter, 1.457" height versus 0.984" diameter, 1.969" height of the original), which may require PCB layout verification for snap-in mounting clearance.

The Nichicon LGN2H181MELA50 extends the operating temperature range to 105°C and provides lifetime rating at 105°C, delivering enhanced thermal performance margins. This part is available in significantly higher inventory quantities. Physical height is 2.047", requiring clearance verification in confined spaces.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the ECO-S2HP181CA?

A: Yes, all listed substitute parts meet the core electrical and mechanical specifications: 180 µF capacitance, 500 V voltage rating, ±20% tolerance, radial snap-in package, 10.00mm lead spacing, and through-hole mounting. Physical dimensions vary; verify PCB layout clearance before implementation.

Q: What is the primary reason for substitution?

A: The ECO-S2HP181CA is classified as obsolete. All substitute parts are active products with current manufacturing and distribution support.

Q: Are there compliance differences between the original and substitute parts?

A: Yes. The ECO-S2HP181CA is RoHS non-compliant. All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: Do the substitute parts have different thermal ratings?

A: The Rubycon and Cornell Dubilier parts maintain the original 3000-hour lifetime at 85°C. The Nichicon LGN2H181MELA50 provides 3000-hour lifetime at 105°C, offering extended thermal performance. Operating temperature ranges are -25°C to 85°C for Rubycon and CDE parts, and -25°C to 105°C for Nichicon.

Q: What are the physical dimension differences?

A: The Rubycon 500USK180MEFCSN25X30 maintains the original 0.984" diameter and 1.260" height. The CDE 380LX181M500A032 has 1.378" diameter and 1.457" height. The Nichicon LGN2H181MELA50 has 0.984" diameter and 2.047" height. Verify snap-in mounting clearance and PCB layout compatibility.

Q: Which substitute offers the best inventory availability?

A: The Nichicon LGN2H181MELA50 is available in significantly higher quantities (273,982 pieces) compared to Rubycon (860 pieces) and CDE (1,056 pieces).

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