EEU-FM0J821LB Equivalent & Substitute Parts

Part Overview

The EEU-FM0J821LB is a 820 µF, 6.3 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 3000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently in active production status with ROHS3 compliance.

Substitute parts are necessary when the original EEU-FM0J821LB becomes unavailable, when alternative packaging formats are required for assembly processes, or when extended operational lifetime specifications are needed for specific application requirements.

Key Parameters

Parameter	Value
Capacitance	820 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00mm)
Diameter	0.315" (8.00mm)
Height	0.650" (16.50mm)

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FM0J821LB is determined by the following mandatory parameters:

Capacitance: 820 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Substitute parts may vary in the following parameters while maintaining functional equivalence:

Lifetime @ 105°C: 3000 Hrs or greater
Lead Spacing: 0.138" (4.60mm) or 0.197" (5.00mm)
Diameter: 0.315" (8.00mm) or 0.394" (10.00mm)
Height: 0.512" (13.00mm), 0.550" (14.00mm), or 0.650" (16.50mm)
Manufacturer: Panasonic Electronic Components, Chemi-Con, or Nichicon
Packaging Format: Tape & Box, Bulk, or Cut Tape

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Packaging	Product Status
EEU-FM0J821LB	Panasonic	820 µF	6.3 V	±20%	3000 Hrs	0.197" (5.00mm)	0.315" (8.00mm)	0.650" (16.50mm)	Tape & Box	Active
EEU-FR0J821	Panasonic	820 µF	6.3 V	±20%	6000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Bulk	Active
EEU-FR0J821B	Panasonic	820 µF	6.3 V	±20%	6000 Hrs	0.197" (5.00mm)	0.315" (8.00mm)	0.512" (13.00mm)	Cut Tape	Active
EKY-6R3ELL821MJC5S	Chemi-Con	820 µF	6.3 V	±20%	6000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.551" (14.00mm)	Bulk	Active
EKZE6R3ELL821MH15D	Chemi-Con	820 µF	6.3 V	±20%	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.650" (16.50mm)	Bulk	Active
UHE0J821MPD	Nichicon	820 µF	6.3 V	±20%	6000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.492" (12.50mm)	Bulk	Not For New Designs
UHV0J821MPD	Nichicon	820 µF	6.3 V	±20%	6000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Bulk	Not For New Designs

Engineering Selection Recommendations

For Active Production Designs:

EEU-FR0J821B is the preferred substitute when the original EEU-FM0J821LB is unavailable. This part maintains identical lead spacing (0.197", 5.00mm) and diameter (0.315", 8.00mm) as the main part, ensuring direct PCB compatibility. The EEU-FR0J821B offers extended lifetime (6000 Hrs @ 105°C) and is available in Cut Tape packaging. Both parts are manufactured by Panasonic Electronic Components and maintain ROHS3 compliance.

EEU-FR0J821 provides an alternative with identical electrical specifications and extended lifetime, though it features reduced lead spacing (0.138", 4.60mm) and height (0.512", 13.00mm). This part requires PCB layout verification before implementation.

EKY-6R3ELL821MJC5S (Chemi-Con) and EKZE6R3ELL821MH15D (Chemi-Con) are functionally equivalent alternatives from an established manufacturer. Both maintain ROHS3 compliance and general-purpose application suitability.

For Legacy or Maintenance Applications:

UHV0J821MPD and UHE0J821MPD are available as substitutes but carry "Not For New Designs" status. These parts are suitable only for replacement in existing systems where the original specification must be maintained. Both parts maintain ROHS3 compliance but are subject to REACH Affected status.

Frequently Asked Questions (FAQ)

Q: Can EEU-FR0J821 be used as a direct replacement for EEU-FM0J821LB?

A: EEU-FR0J821 is electrically equivalent but requires PCB layout verification. The lead spacing differs (0.138" vs. 0.197") and height is reduced (0.512" vs. 0.650"). Verify that the PCB footprint accommodates these dimensional changes before implementation.

Q: What is the difference between EEU-FR0J821 and EEU-FR0J821B?

A: Both parts are identical in electrical specifications and lifetime rating (6000 Hrs @ 105°C). The primary difference is packaging format: EEU-FR0J821 is supplied in Bulk, while EEU-FR0J821B is supplied in Cut Tape. EEU-FR0J821B also maintains the original lead spacing (0.197", 5.00mm) of the EEU-FM0J821LB.

Q: Why do some substitute parts have larger diameters?

A: EKY-6R3ELL821MJC5S and UHE0J821MPD feature 0.394" (10.00mm) diameter cans. This larger diameter does not affect electrical equivalence but requires verification that the PCB layout accommodates the increased physical size.

Q: Are Nichicon parts (UHV0J821MPD, UHE0J821MPD) suitable for new designs?

A: Both Nichicon parts carry "Not For New Designs" status. These parts are restricted to replacement applications in existing systems only and should not be specified for new product development.

Q: What is the impact of different lead spacing on PCB compatibility?

A: Lead spacing variations (0.138" vs. 0.197") require PCB footprint verification. The original EEU-FM0J821LB uses 0.197" (5.00mm) spacing. Substitutes with 0.138" (4.60mm) spacing require confirmation that the PCB layout supports this reduced spacing before component placement.

Q: Do all substitute parts maintain the same compliance certifications?

A: All listed substitutes maintain ROHS3 compliance. However, UHV0J821MPD and UHE0J821MPD are subject to REACH Affected status, while the Panasonic and Chemi-Con alternatives are REACH Unaffected. Verify compliance requirements for your specific application before selection.

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