ECO-S2EP271BA Equivalent & Substitute Parts

Part Overview

The Panasonic ECO-S2EP271BA is a 270 µF, 250 V aluminum electrolytic capacitor in radial, can snap-in package format. This component belongs to the TS-UP series and is classified as obsolete. Due to its discontinued status, direct replacement with active production alternatives is necessary for new designs and ongoing procurement requirements. The part specifications—270 µF capacitance, ±20% tolerance, 250 V rated voltage, and through-hole snap-in mounting—define the substitution parameters for equivalent components.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Polarization	Polar
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	3000 Hrs @ 85°C

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters: capacitance value (270 µF), voltage rating (250 V), tolerance (±20%), package configuration (radial snap-in), mounting method (through-hole), and lead spacing (10.00mm). All substitute parts listed maintain these core electrical and mechanical specifications. Lifetime rating and operating temperature range are secondary considerations; parts with equal or superior ratings are acceptable. ESR (Equivalent Series Resistance) values are provided where available but do not disqualify substitutes when unspecified. Physical dimensions (diameter and height) may vary within the snap-in package family; height differences do not prevent mechanical compatibility in standard through-hole applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120Hz	Lifetime @ 85°C	Operating Temp	Height (Max)	Product Status	RoHS Status
ECO-S2EP271BA	Panasonic	270 µF	250 V	±20%	614 mOhm	3000 Hrs	-40°C ~ 85°C	1.181" (30.00mm)	Obsolete	REACH Affected
250USG270MEFC22X25	Rubycon	270 µF	250 V	±20%	—	3000 Hrs	-40°C ~ 85°C	1.063" (27.00mm)	Active	RoHS Non-Compliant
250USG270MEFCSN22X25	Rubycon	270 µF	250 V	±20%	—	3000 Hrs	-40°C ~ 85°C	1.063" (27.00mm)	Active	ROHS3 Compliant
380LX271M250H022	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	620 mOhm	3000 Hrs	-40°C ~ 85°C	1.260" (32.00mm)	Active	ROHS3 Compliant
LLS2E271MELZ	Nichicon	270 µF	250 V	±20%	—	3000 Hrs	-40°C ~ 85°C	0.984" (25.00mm)	Active	ROHS3 Compliant
381LR271M250H022	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	737 mOhm	3000 Hrs @ 105°C	-40°C ~ 105°C	1.260" (32.00mm)	Active	ROHS3 Compliant
380LQ271M250H012	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	737 mOhm	2000 Hrs	-40°C ~ 85°C	1.063" (27.00mm)	Active	ROHS3 Compliant
380LX271M250J012	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	620 mOhm	3000 Hrs	-40°C ~ 85°C	1.063" (27.00mm)	Active	ROHS3 Compliant
LPX271M250A3P3	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	737 mOhm	1000 Hrs	-40°C ~ 85°C	1.181" (30.00mm)	Active	ROHS3 Compliant
LPX271M250C1P3	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	737 mOhm	1000 Hrs	-40°C ~ 85°C	0.984" (25.00mm)	Active	ROHS3 Compliant
SLPX271M250A3P3	Cornell Dubilier Electronics (CDE)	270 µF	250 V	±20%	737 mOhm	3000 Hrs	-40°C ~ 85°C	1.181" (30.00mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Active Production, Equivalent Specifications)

The Rubycon 250USG270MEFCSN22X25 and Nichicon LLS2E271MELZ are primary direct substitutes. Both maintain 270 µF capacitance, 250 V rating, ±20% tolerance, 10.00mm lead spacing, and 3000 Hrs @ 85°C lifetime. The Rubycon part is ROHS3 compliant; the Nichicon part is also ROHS3 compliant. Both are in active production with confirmed inventory availability.

The Cornell Dubilier 380LX271M250H022 is an active substitute with matching electrical specifications and ROHS3 compliance. ESR is 620 mOhm, comparable to the original 614 mOhm specification.

Extended Temperature Operation

The Cornell Dubilier 381LR271M250H022 offers superior thermal performance with 3000 Hrs @ 105°C lifetime and -40°C ~ 105°C operating range, compared to the original -40°C ~ 85°C. This part is suitable for applications requiring extended temperature operation while maintaining all core electrical parameters.

Reduced Lifetime Alternatives

The Cornell Dubilier 380LQ271M250H012 and LPX series parts (LPX271M250A3P3, LPX271M250C1P3) have reduced lifetime ratings (2000 Hrs or 1000 Hrs @ 85°C). These are acceptable only in applications where the original 3000 Hrs specification is not a design requirement.

Compliance Considerations

All active substitutes listed are ROHS3 compliant except the Rubycon 250USG270MEFC22X25, which is RoHS non-compliant. For applications requiring RoHS compliance, select from the ROHS3-compliant alternatives.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different height dimension?

A: Yes. All listed substitutes maintain the 10.00mm lead spacing and radial snap-in package configuration. Height variations (ranging from 0.984" to 1.260") do not prevent mechanical compatibility in standard through-hole PCB applications. Verify clearance in your specific board layout if space is constrained.

Q: What is the significance of ESR differences between parts?

A: ESR (Equivalent Series Resistance) affects ripple current handling and thermal performance. The original ECO-S2EP271BA specifies 614 mOhm @ 120Hz. Substitutes with similar or lower ESR values (such as the 380LX series at 620 mOhm) are functionally equivalent. Parts with unspecified ESR are acceptable if other electrical parameters match.

Q: Are all substitutes RoHS compliant?

A: No. The Rubycon 250USG270MEFC22X25 is RoHS non-compliant. All other listed substitutes are ROHS3 compliant. Select the ROHS3-compliant variant (250USG270MEFCSN22X25) if regulatory compliance is required.

Q: Can I use a substitute with a lower lifetime rating?

A: Substitutes with reduced lifetime ratings (1000 Hrs or 2000 Hrs @ 85°C versus the original 3000 Hrs) are electrically compatible but may not meet design reliability requirements. Use only if your application does not mandate the original 3000 Hrs specification.

Q: Which substitute offers the best thermal performance?

A: The Cornell Dubilier 381LR271M250H022 provides extended thermal capability with 3000 Hrs @ 105°C and -40°C ~ 105°C operating range. This part is suitable for high-temperature environments while maintaining all core electrical specifications.

Q: Are there inventory considerations for substitution?

A: All listed substitutes have confirmed inventory availability. The Rubycon 250USG270MEFCSN22X25 (1181 Pcs), Nichicon LLS2E271MELZ (1081 Pcs), and Cornell Dubilier 381LR271M250H022 (13566 Pcs) have substantial stock levels.

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