EEU-FC1V271B Equivalent & Substitute Parts

Part Overview

The EEU-FC1V271B is a 270 µF, 35 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for automotive applications with AEC-Q200 compliance and operates across a temperature range of -55°C to 105°C with a rated lifetime of 3000 hours at 105°C. The part is currently in active production status. Substitute parts may be required due to inventory constraints, packaging format availability, or specific application requirements where alternative specifications remain within acceptable electrical and mechanical parameters.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	35 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Operating Temperature Range	-55°C to 105°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1V271B is determined by the following critical parameters:

Capacitance value: 270 µF (exact match required)
Voltage rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Package type: Radial, Can (exact match required)
Mounting type: Through Hole (exact match required)
Lead spacing: 0.197" (5.00 mm) (exact match required)
Operating temperature range: -55°C to 105°C (exact match required)
AEC-Q200 automotive rating (required for automotive applications)
RoHS3 compliance (required for regulatory compliance)

Substitute parts must satisfy all these parameters. Variations in physical dimensions (height, diameter), lifetime ratings, ripple current specifications, impedance, and product status are permitted provided the core electrical and mechanical parameters remain unchanged.

Parameter Comparison

Parameter	EEU-FC1V271B (Main)	EEU-FC1V271 (Direct)	UPM1V271MPD (Similar)
Manufacturer	Panasonic	Panasonic	Nichicon
Capacitance	270 µF	270 µF	270 µF
Voltage Rating	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%
Polarization	Polar	Polar	Polar
Package Type	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Diameter	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Height - Seated (Max)	0.669" (17.00 mm)	0.630" (16.00 mm)	0.866" (22.00 mm)
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Lifetime @ 105°C	3000 Hrs	3000 Hrs	5000 Hrs
Ripple Current @ 120 Hz	682.5 mA	682.5 mA	735 mA
Ripple Current @ 100 kHz / 10 kHz	1.05 A @ 100 kHz	1.05 A @ 100 kHz	985 mA @ 10 kHz
Impedance	68 mOhms	68 mOhms	70 mOhms
AEC-Q200 Rating	Yes	Yes	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Not For New Designs
Packaging	Cut Tape (CT)	Bulk	Bulk

Engineering Selection Recommendations

EEU-FC1V271 (Direct Substitute): This part is the preferred direct substitute for EEU-FC1V271B. Both are manufactured by Panasonic, share identical electrical specifications, and maintain active product status. The only difference is packaging format (Bulk versus Cut Tape) and a minor height variation (16.00 mm versus 17.00 mm). Both parts are suitable for new designs and automotive applications requiring AEC-Q200 compliance.

UPM1V271MPD (Similar Substitute): This Nichicon part meets all core electrical and mechanical requirements and provides extended lifetime (5000 hours at 105°C versus 3000 hours). However, this part carries a "Not For New Designs" status, indicating it is in end-of-life phase. The height dimension is significantly greater (22.00 mm versus 17.00 mm), which may present mechanical constraints in space-limited applications. Use only when EEU-FC1V271B and EEU-FC1V271 are unavailable and when the increased height and end-of-life status are acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1V271 be used as a direct replacement for EEU-FC1V271B?

A: Yes. Both parts are electrically and mechanically equivalent. The difference in packaging format (Bulk versus Cut Tape) does not affect electrical performance. The height variation of 1.00 mm (16.00 mm versus 17.00 mm) is within typical PCB layout tolerances for through-hole components.

Q: Is UPM1V271MPD suitable for new product designs?

A: No. UPM1V271MPD carries a "Not For New Designs" status, indicating the part is in end-of-life phase. It should be used only as a temporary substitute when primary options are unavailable. New designs should specify EEU-FC1V271B or EEU-FC1V271.

Q: What is the significance of the height difference between these parts?

A: The main part (EEU-FC1V271B) has a maximum seated height of 17.00 mm, EEU-FC1V271 is 16.00 mm, and UPM1V271MPD is 22.00 mm. In applications with tight vertical clearance constraints, the taller UPM1V271MPD may not fit. Verify PCB layout clearance before substitution.

Q: Do all three parts meet automotive AEC-Q200 requirements?

A: Yes. All three parts carry AEC-Q200 certification and are suitable for automotive applications within their specified operating parameters.

Q: Are there differences in ripple current handling between these parts?

A: Minor differences exist. EEU-FC1V271B and EEU-FC1V271 specify 1.05 A at 100 kHz, while UPM1V271MPD specifies 985 mA at 10 kHz. These variations do not affect substitution eligibility for applications designed around the main part's specifications.

Q: What is the difference between Cut Tape and Bulk packaging?

A: Cut Tape (CT) packaging is used for automated pick-and-place assembly and provides components in tape format. Bulk packaging provides loose components. Both formats contain identical components; packaging selection depends on assembly process requirements.

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