EEU-FC1J271B Equivalent & Substitute Parts

Part Overview

The EEU-FC1J271B is a 270 µF, 63 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This capacitor is rated for 5000 hours at 105°C and meets AEC-Q200 automotive standards. The part is currently active in production. Equivalent and substitute parts may be required due to inventory availability, lead time constraints, or specific application requirements where alternative electrical or mechanical characteristics are acceptable within design parameters.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	63 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50mm)
Case Diameter	0.630" (16.00mm)
Height	0.650" (16.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1J271B is determined by the following critical parameters:

Electrical Compatibility Requirements:

Capacitance: 270 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required)

Performance Characteristics:

Operating Temperature Range: -55°C ~ 105°C (exact match required)
Lifetime @ 105°C: 5000 Hrs minimum (equal or greater acceptable)

Substitute parts are grouped into two categories:

Upgrade Substitutes: Parts with extended lifetime ratings (8000 Hrs @ 105°C) that maintain identical electrical and mechanical specifications. These provide enhanced reliability while preserving form factor and electrical performance.

Similar Substitutes: Parts that maintain core electrical specifications (270 µF, 63 V, ±20%) but feature different mechanical dimensions, lead spacing, or performance characteristics. These require PCB layout verification before implementation.

Parameter Comparison

Parameter	EEU-FC1J271B (Panasonic)	UPW1J271MHD (Nichicon)	ELXY630ELL271MK25S (Chemi-Con)	UPM1J271MHD (Nichicon)
Manufacturer	Panasonic	Nichicon	Chemi-Con	Nichicon
Series	FC	UPW	LXY	UPM
Capacitance	270 µF	270 µF	270 µF	270 µF
Voltage Rating	63 V	63 V	63 V	63 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ 105°C	5000 Hrs	8000 Hrs	7000 Hrs	5000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar	Polar
Lead Spacing	0.295" (7.50mm)	0.295" (7.50mm)	0.197" (5.00mm)	0.197" (5.00mm)
Case Diameter	0.630" (16.00mm)	0.630" (16.00mm)	0.492" (12.50mm)	0.492" (12.50mm)
Height	0.650" (16.50mm)	0.591" (15.00mm)	1.043" (26.50mm)	1.063" (27.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Not For New Designs	Active	Not For New Designs
Automotive Rating	AEC-Q200	Not Specified	AEC-Q200	AEC-Q200

Engineering Selection Recommendations

Direct Mechanical Substitutes (Identical Form Factor):

UPW1J271MHD and EEU-FC1J271B share identical lead spacing (0.295", 7.50mm) and case diameter (0.630", 16.00mm), enabling direct PCB footprint compatibility. UPW1J271MHD provides extended lifetime (8000 Hrs @ 105°C) but carries "Not For New Designs" status. Selection should prioritize active production parts for new designs.

Electrical Equivalents with Mechanical Differences:

ELXY630ELL271MK25S and UPM1J271MHD maintain identical electrical specifications (270 µF, 63 V, ±20%) but feature reduced lead spacing (0.197", 5.00mm) and smaller case diameter (0.492", 12.50mm). These parts require PCB layout modification and cannot be used as direct drop-in replacements. ELXY630ELL271MK25S is active in production and maintains AEC-Q200 automotive certification. UPM1J271MHD carries "Not For New Designs" status.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and automotive-grade certifications where applicable. For automotive applications, prioritize parts with active product status and AEC-Q200 ratings: EEU-FC1J271B (primary), ELXY630ELL271MK25S (alternative with layout modification required).

Frequently Asked Questions (FAQ)

Q: Can UPW1J271MHD be used as a direct replacement for EEU-FC1J271B?

A: Yes, UPW1J271MHD is mechanically and electrically compatible. Both parts share identical lead spacing (0.295", 7.50mm), case diameter (0.630", 16.00mm), and electrical specifications (270 µF, 63 V, ±20%). However, UPW1J271MHD carries "Not For New Designs" status, making it suitable only for legacy system maintenance or inventory management.

Q: Why do ELXY630ELL271MK25S and UPM1J271MHD have different physical dimensions?

A: These parts belong to different product series with different mechanical designs. While they maintain identical electrical specifications (270 µF, 63 V, ±20%), their reduced lead spacing (0.197" vs. 0.295") and smaller case diameter require different PCB footprints. Direct substitution is not possible without PCB redesign.

Q: Which substitute part is recommended for new automotive designs?

A: ELXY630ELL271MK25S is the recommended alternative for new designs. It maintains active product status, AEC-Q200 automotive certification, and extended lifetime (7000 Hrs @ 105°C). PCB layout modification is required due to different mechanical dimensions.

Q: Are all substitute parts RoHS compliant?

A: Yes, all listed parts are ROHS3 compliant. Compliance status is consistent across all manufacturers and series.

Q: What is the impact of different lifetime ratings on part selection?

A: Lifetime ratings (5000, 7000, or 8000 Hrs @ 105°C) indicate expected operational duration under specified thermal conditions. Selection should match application requirements. For applications requiring extended reliability, parts with 7000 or 8000 hour ratings provide additional margin.

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