Equivalent & Substitute Parts for EEE-FC1E6R8R

Part Overview

The Panasonic EEE-FC1E6R8R is a 6.8 µF, 25 V aluminum electrolytic capacitor in surface mount radial can package, rated for 1000 hours at 105°C with AEC-Q200 automotive qualification. This part carries a "Not For New Designs" status, indicating it has been superseded in Panasonic's product line. Equivalent and substitute parts are necessary for ongoing production support, design updates, or when the original part becomes unavailable.

Key Parameters

Parameter	Value
Capacitance	6.8 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ 105°C	1000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Package Type	Radial, Can - SMD
Case Size	0.157" Dia (4.00mm)
Height (Max)	0.213" (5.40mm)
Land Size	0.169" L x 0.169" W (4.30mm x 4.30mm)
Mounting Type	Surface Mount
Ratings	AEC-Q200
RoHS Status	RoHS Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Substitution Criteria (Must Match):

Capacitance: 6.8 µF
Voltage Rating: 25 V or higher
Tolerance: ±20%
Package Type: Radial, Can - SMD
Case Diameter: 0.157" (4.00mm)
Land Size: 0.169" L x 0.169" W (4.30mm x 4.30mm)
Mounting Type: Surface Mount
AEC-Q200 Qualification

Secondary Substitution Criteria (Beneficial Improvements):

Lifetime @ 105°C: 1000 Hrs or greater
Operating Temperature Range: -40°C ~ 105°C or wider
RoHS Compliance: RoHS3 preferred over RoHS
Product Status: Active preferred over "Not For New Designs"

Substitutes are grouped into two categories:

Category A - Direct Equivalents (Same Voltage, Same or Better Lifetime):

EEE-FC1E6R8AR (Panasonic FC series, same voltage, same lifetime)
EEE-HB1E6R8AR (Panasonic HB series, same voltage, improved lifetime to 2000 Hrs, Active status)
EEE-HB1E6R8R (Panasonic HB series, same voltage, improved lifetime to 2000 Hrs, Active status)
EDH685M025S9BAA (KEMET EDH series, same voltage, improved lifetime to 2000 Hrs, Active status)
UWG1E6R8MCL1GB (Nichicon UWG series, same voltage, same lifetime, Active status)

Category B - Voltage Upgrades (Higher Voltage Rating, Improved Lifetime):

EEE-HBV6R8UAR (Panasonic HBV series, 35 V rating, improved lifetime to 2000 Hrs, Active status)
EDH685M035S9BAA (KEMET EDH series, 35 V rating, improved lifetime to 2000 Hrs, Active status)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Height (Max)	Product Status	RoHS Status
EEE-FC1E6R8R	Panasonic	6.8 µF	25 V	±20%	1000 Hrs	0.213" (5.40mm)	Not For New Designs	RoHS Compliant
EEE-FC1E6R8AR	Panasonic	6.8 µF	25 V	±20%	1000 Hrs	0.213" (5.40mm)	Not For New Designs	RoHS Compliant
EEE-HB1E6R8AR	Panasonic	6.8 µF	25 V	±20%	2000 Hrs	0.228" (5.80mm)	Active	ROHS3 Compliant
EEE-HB1E6R8R	Panasonic	6.8 µF	25 V	±20%	2000 Hrs	0.228" (5.80mm)	Active	ROHS3 Compliant
EEE-HBV6R8UAR	Panasonic	6.8 µF	35 V	±20%	2000 Hrs	0.228" (5.80mm)	Active	ROHS3 Compliant
EDH685M025S9BAA	KEMET	6.8 µF	25 V	±20%	2000 Hrs	0.222" (5.65mm)	Active	ROHS3 Compliant
EDH685M035S9BAA	KEMET	6.8 µF	35 V	±20%	2000 Hrs	0.222" (5.65mm)	Active	ROHS3 Compliant
UWG1E6R8MCL1GB	Nichicon	6.8 µF	25 V	±20%	1000 Hrs	0.213" (5.40mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance):

EEE-HB1E6R8AR and EEE-HB1E6R8R are the primary recommended substitutes. Both maintain the 6.8 µF / 25 V specification while offering doubled lifetime (2000 Hrs @ 105°C) and Active product status. The Panasonic HB series provides continuity within the same manufacturer ecosystem. Height increases from 0.213" to 0.228", which must be verified against PCB layout constraints.

EDH685M025S9BAA (KEMET) provides equivalent electrical performance with 2000 Hrs lifetime and Active status. Height is 0.222", slightly lower than HB series variants. This option is suitable when cross-manufacturer qualification is acceptable.

UWG1E6R8MCL1GB (Nichicon) maintains the original 1000 Hrs lifetime and 0.213" height profile, offering a direct form-factor match with Active product status and ROHS3 compliance.

For Voltage Margin Applications:

EEE-HBV6R8UAR and EDH685M035S9BAA both provide 35 V rating with 2000 Hrs lifetime and Active status. These are suitable for designs requiring higher voltage headroom or when operating conditions may exceed 25 V nominal.

Compliance Considerations:

All substitute parts carry AEC-Q200 automotive qualification and ROHS3 compliance. The original EEE-FC1E6R8R is RoHS Compliant (RoHS2 equivalent). Substitutes with ROHS3 status represent improved compliance posture for new designs or production continuations.

Frequently Asked Questions (FAQ)

Q: Can EEE-HB1E6R8AR be used as a direct replacement for EEE-FC1E6R8R?

A: Yes. Both parts share identical electrical specifications (6.8 µF, 25 V, ±20% tolerance) and package footprint (0.157" diameter, 4.30mm x 4.30mm land size). The HB variant offers improved lifetime (2000 Hrs vs. 1000 Hrs @ 105°C) and Active product status. The height increases from 5.40mm to 5.80mm; verify clearance in your PCB assembly.

Q: What is the difference between EEE-HB1E6R8AR and EEE-HB1E6R8R?

A: Both are Panasonic HB series 6.8 µF / 25 V capacitors with identical electrical and thermal ratings. The suffix difference (AR vs. R) indicates packaging or manufacturing variant. Both are electrically and mechanically interchangeable.

Q: Why would I choose EDH685M025S9BAA over Panasonic HB series?

A: KEMET EDH series offers equivalent performance with slightly lower height (5.65mm vs. 5.80mm), which may provide additional PCB clearance. Selection depends on manufacturer qualification requirements and inventory availability.

Q: Can I use EEE-HBV6R8UAR (35 V) instead of the 25 V original?

A: Yes. The 35 V rating is electrically compatible with 25 V applications and provides additional voltage margin. This substitution is suitable for designs operating near maximum voltage limits or requiring improved reliability margin. No electrical redesign is required.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitutes carry AEC-Q200 automotive qualification, matching the original part's certification level.

Q: What is the impact of the height difference between FC and HB series?

A: FC series height is 5.40mm; HB series height is 5.80mm. This 0.40mm increase must be verified against PCB layout, solder reflow profiles, and component clearance requirements. KEMET EDH series at 5.65mm provides a middle ground.

Q: Is UWG1E6R8MCL1GB suitable for automotive applications?

A: UWG1E6R8MCL1GB carries AEC-Q200 qualification and is suitable for automotive use. However, it is classified as "General Purpose" rather than automotive-specific. Verify application requirements and design qualification protocols before selection.

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