EEU-FR1V271 Equivalent & Substitute Parts

Part Overview

The EEU-FR1V271 is a 270 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This part operates across -40°C to 105°C with a rated lifetime of 6000 hours at 105°C and is designed for general-purpose applications. The part is Active status and ROHS3 compliant.

Substitute parts are necessary when the original part becomes unavailable, when packaging requirements differ, or when enhanced performance characteristics such as extended lifetime or improved ripple current handling are required for specific application demands.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	35 V
Tolerance	±20%
Operating Temperature Range	-40°C to 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height	0.551" (14.00 mm)
Lifetime @ 105°C	6000 Hours
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FR1V271 is determined by the following critical parameters:

Core Electrical Parameters (Non-Negotiable):

Capacitance: 270 µF
Voltage Rating: 35 V
Tolerance: ±20%
Polarization: Polar

Mechanical Parameters (Application-Dependent):

Lead Spacing: 0.197" (5.00 mm) for direct PCB compatibility
Diameter and Height: Physical envelope constraints
Mounting Type: Through Hole

Performance Parameters (Enhancement-Allowed):

Lifetime @ 105°C: Equal or greater than 6000 hours
Ripple Current: Equal or greater capacity
Impedance: Lower values indicate improved performance
Operating Temperature: Must encompass -40°C to 105°C minimum

Compliance Parameters:

RoHS Status: ROHS3 Compliant required
Product Status: Active or Not For New Designs acceptable for existing designs

Substitutes are grouped into three categories: Direct equivalents (identical packaging and performance), similar alternatives (different packaging or slightly modified dimensions), and upgrades (enhanced lifetime or ripple current specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Packaging	Product Status	RoHS
EEU-FR1V271	Panasonic	270 µF	35 V	±20%	6000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Bulk	Active	ROHS3
EEU-FR1V271B	Panasonic	270 µF	35 V	±20%	6000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Cut Tape (CT)	Active	ROHS3
EEU-FR1V271L	Panasonic	270 µF	35 V	±20%	8000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.650" (16.50 mm)	Bulk	Active	ROHS3
EEU-FR1V271LB	Panasonic	270 µF	35 V	±20%	8000 Hrs	0.197" (5.00 mm)	0.315" (8.00 mm)	0.650" (16.50 mm)	Cut Tape (CT)	Active	ROHS3
35ZLJ270M10X12.5	Rubycon	270 µF	35 V	±20%	9000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Bulk	Active	ROHS3
EKZN350ELL271MJC5S	Chemi-Con	270 µF	35 V	±20%	9000 Hrs	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Bulk	Active	ROHS3
EKZE350ELL271MH20D	Chemi-Con	270 µF	35 V	±20%	3000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.846" (21.50 mm)	Bulk	Active	ROHS3
UHE1V271MPD	Nichicon	270 µF	35 V	±20%	7000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.787" (20.00 mm)	Bulk	Not For New Designs	ROHS3
UHV1V271MPD	Nichicon	270 µF	35 V	±20%	6000 Hrs	0.138" (4.60 mm)	0.315" (8.00 mm)	0.650" (16.50 mm)	Bulk	Not For New Designs	ROHS3

Engineering Selection Recommendations

Direct Packaging Equivalent (Identical PCB Footprint): EEU-FR1V271B is a direct substitute with identical electrical and mechanical specifications. The only difference is packaging format (Cut Tape vs. Bulk). Selection depends on procurement and assembly requirements.

Enhanced Lifetime Alternatives (Same Footprint): 35ZLJ270M10X12.5 (Rubycon) and EKZN350ELL271MJC5S (Chemi-Con) maintain identical physical dimensions and lead spacing while providing 9000-hour lifetime at 105°C compared to the original 6000 hours. Both are Active status and ROHS3 compliant. These are suitable for applications requiring extended operational life.

Compact Form Factor Alternatives (Reduced Footprint): EEU-FR1V271L and EEU-FR1V271LB feature smaller diameter (0.315" vs. 0.394") and reduced lead spacing (0.138" vs. 0.197"). EEU-FR1V271LB provides 8000-hour lifetime with compatible lead spacing to the original part. These require PCB layout verification due to dimensional changes.

Legacy Alternatives (Not For New Designs): UHE1V271MPD and UHV1V271MPD from Nichicon are marked "Not For New Designs" and feature different lead spacing (0.138") and varying heights. These are suitable only for replacement in existing designs where footprint compatibility is confirmed.

Lower Lifetime Alternative: EKZE350ELL271MH20D (Chemi-Con) provides only 3000-hour lifetime at 105°C and features non-standard dimensions. Selection is limited to applications with reduced lifetime requirements and confirmed mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use EEU-FR1V271L as a direct replacement for EEU-FR1V271? A: Electrical specifications are identical, but mechanical dimensions differ. EEU-FR1V271L has 0.138" lead spacing versus 0.197" on the original part. PCB layout must be verified before substitution. The smaller form factor may not fit existing through-hole patterns.

Q: What is the difference between EEU-FR1V271B and EEU-FR1V271? A: Both parts are electrically and mechanically identical. The difference is packaging: EEU-FR1V271B is supplied in Cut Tape format while EEU-FR1V271 is supplied in Bulk. Selection depends on assembly process requirements.

Q: Are the Rubycon 35ZLJ270M10X12.5 and Chemi-Con EKZN350ELL271MJC5S truly equivalent? A: Both parts share identical electrical ratings, voltage, capacitance, tolerance, and physical dimensions. Both provide 9000-hour lifetime at 105°C. They are functionally equivalent with the primary difference being manufacturer. Cross-qualification may be required depending on design specifications.

Q: Why do some substitutes have different lead spacing? A: Lead spacing (0.138" vs. 0.197") determines PCB hole pattern compatibility. Parts with different lead spacing require PCB redesign or cannot be used in existing designs. Always verify mechanical compatibility before selection.

Q: Can I use parts marked "Not For New Designs" in new applications? A: Parts with "Not For New Designs" status (UHE1V271MPD, UHV1V271MPD) are suitable only for replacement in existing designs or legacy applications. For new designs, select from parts with Active status: EEU-FR1V271B, EEU-FR1V271L, EEU-FR1V271LB, 35ZLJ270M10X12.5, EKZN350ELL271MJC5S, or EKZE350ELL271MH20D.

Q: What does ROHS3 compliance mean for this part? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, mercury, cadmium, and other hazardous materials. All listed substitutes maintain ROHS3 compliance.

Q: Should I select a part with longer lifetime? A: Lifetime selection depends on application requirements. The original 6000-hour rating is suitable for general-purpose applications. Extended lifetime parts (8000 or 9000 hours) are beneficial for critical applications or environments with continuous operation at elevated temperatures.

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