ECO-S2HP331EA Equivalent & Substitute Parts

Part Overview

The ECO-S2HP331EA is a 330 µF, 500 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the TS-UP series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is currently listed as obsolete, making identification of equivalent substitute components essential for ongoing system support, maintenance, and new production sourcing.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	500 V
Tolerance	±20%
ESR @ 120 Hz	502 mOhm
Lifetime @ 85°C	3000 Hrs
Operating Temperature Range	-25°C to 85°C
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can - Snap-In
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts for the ECO-S2HP331EA are qualified based on the following electrical and mechanical parameters:

Capacitance Value: 330 µF (exact match required)
Voltage Rating: 500 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime Specification: 3000 Hrs @ 85°C (exact match required)
Operating Temperature Range: -25°C to 85°C (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Diameter: 1.378" (35.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Polarization: Polar (exact match required)

Both substitute parts meet all critical electrical and mechanical parameters. Variations in height and ESR specifications remain within acceptable ranges for direct substitution in the original application circuit.

Parameter Comparison

Parameter	ECO-S2HP331EA (Panasonic)	380LX331M500A452 (CDE)	500USK330MEFCSN35X30 (Rubycon)
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	500 V	500 V	500 V
Tolerance	±20%	±20%	±20%
ESR @ 120 Hz	502 mOhm	502 mOhm	Not specified
Lifetime @ 85°C	3000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-25°C to 85°C	-25°C to 85°C	-25°C to 85°C
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)
Height (Seated Max)	1.772" (45.00 mm)	1.850" (47.00 mm)	1.260" (32.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Polarization	Polar	Polar	Polar
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

Both substitute parts are qualified direct replacements for the obsolete ECO-S2HP331EA based on matching electrical and mechanical specifications.

380LX331M500A452 (Cornell Dubilier Electronics): This part is manufactured by Cornell Dubilier Electronics and carries active product status. It is ROHS3 compliant and REACH unaffected. The ESR specification of 502 mOhm matches the original part exactly. Height is 1.850" (47.00 mm), which is 0.078" taller than the original. This part is suitable for applications where vertical clearance permits the additional height.

500USK330MEFCSN35X30 (Rubycon): This part is manufactured by Rubycon and carries active product status. It is ROHS3 compliant and REACH unaffected. The height is 1.260" (32.00 mm), which is 0.512" shorter than the original, providing a compact alternative for space-constrained applications. ESR is not specified for this part. Ripple current ratings at both low and high frequencies exceed the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 380LX331M500A452 be used as a direct replacement for the ECO-S2HP331EA?

A: Yes. The 380LX331M500A452 matches all critical electrical parameters (capacitance, voltage, tolerance, lifetime, temperature range) and mechanical parameters (lead spacing, diameter, mounting type, package type). The height difference of 0.078" must be verified against available vertical clearance in the application circuit.

Q: Can the 500USK330MEFCSN35X30 be used as a direct replacement for the ECO-S2HP331EA?

A: Yes. The 500USK330MEFCSN35X30 matches all critical electrical parameters (capacitance, voltage, tolerance, lifetime, temperature range) and mechanical parameters (lead spacing, diameter, mounting type, package type). The significantly reduced height of 1.260" (32.00 mm) makes this part suitable for applications with limited vertical space.

Q: What is the difference in height between the substitute parts?

A: The 380LX331M500A452 has a seated height of 1.850" (47.00 mm), while the 500USK330MEFCSN35X30 has a seated height of 1.260" (32.00 mm). The original ECO-S2HP331EA has a seated height of 1.772" (45.00 mm). Height selection depends on available vertical clearance in the PCB assembly.

Q: Are both substitute parts currently available?

A: Yes. The 380LX331M500A452 has 741 pieces in stock, and the 500USK330MEFCSN35X30 has 274,082 pieces in stock, both listed as new original inventory.

Q: Do the substitute parts meet RoHS and REACH compliance?

A: Yes. Both the 380LX331M500A452 and 500USK330MEFCSN35X30 are ROHS3 compliant and REACH unaffected.

Q: What is the ESR specification for the 500USK330MEFCSN35X30?

A: The ESR specification is not provided in the technical data for the 500USK330MEFCSN35X30. The original ECO-S2HP331EA and the 380LX331M500A452 both specify 502 mOhm @ 120 Hz.

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