EEE-FP1A681AL Equivalent & Substitute Parts

Part Overview

The EEE-FP1A681AL is a 680 µF, 10 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in the FP series. This surface mount device is designed for automotive applications and carries AEC-Q200 qualification. The part is actively produced and available in high volume inventory. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, design flexibility, or packaging preferences while maintaining functional compatibility within the specified operating envelope.

Key Parameters

Parameter	Value	Unit
Capacitance	680	µF
Voltage - Rated	10	V
Tolerance	±20	%
Operating Temperature Range	-55 to 105	°C
Lifetime @ Temperature	2000	Hrs @ 105°C
Size / Dimension	0.315" Dia (8.00mm)	-
Height - Seated (Max)	0.413" (10.50mm)	-
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)	-
Mounting Type	Surface Mount	-
Package / Case	Radial, Can - SMD	-
Polarization	Polar	-
AEC-Q200 Rating	Yes	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Capacitance: 680 µF (exact match required)
Voltage Rating: 10 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -55°C to 105°C (exact match required)
Lifetime: 2000 Hrs @ 105°C (exact match required)
Physical Dimensions: 0.315" Dia (8.00mm), Height 0.413" (10.50mm), Land Size 0.327" L x 0.327" W (8.30mm x 8.30mm) (exact match required)
Mounting Type: Surface Mount, Radial Can - SMD (exact match required)
Polarization: Polar (exact match required)
AEC-Q200 Compliance: Required for automotive applications
RoHS3 Compliance: Required
MSL Rating: 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria. Variations in ESR (Equivalent Series Resistance), ripple current ratings, and impedance specifications do not disqualify substitution when the core electrical and mechanical parameters are equivalent.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR @ 100kHz (mOhm)	Lifetime @ 105°C (Hrs)	Operating Temp (°C)	Ripple Current @ 120Hz (mA)	Ripple Current @ 100kHz (mA)	Size Dia (mm)	Height (mm)	Land Size (mm)	Packaging	AEC-Q200	RoHS3	MSL
EEE-FP1A681AL	Panasonic	FP	680	10	±20	80	2000	-55 to 105	595	850	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1
EEE-FK1A681GL	Panasonic	FK	680	10	±20	160	2000	-55 to 105	450	600	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1
EEE-FK1A681P	Panasonic	FK	680	10	±20	160	2000	-55 to 105	450	600	8.00	10.50	8.30 x 8.30	Cut Tape & Digi-Reel	Yes	Yes	1
EEE-FN1A681L	Panasonic	FN	680	10	±20	160	2000	-55 to 105	420	600	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1
EEE-FN1A681P	Panasonic	FN	680	10	±20	160	2000	-55 to 105	420	600	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1
10TKV680M8X10.5	Rubycon	TKV	680	10	±20	80	2000	-55 to 105	510	850	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1
EMZA100ARA681MHA0G	Chemi-Con	Alchip™- MZA	680	10	±20	160	2000	-55 to 105	360	600	8.00	10.50	8.30 x 8.30	Tape & Reel	Yes	Yes	1

Engineering Selection Recommendations

All identified substitute parts are active products with full AEC-Q200 automotive qualification and ROHS3 compliance, meeting the regulatory and quality requirements of the EEE-FP1A681AL. Selection among these equivalents is based on the following factors:

Panasonic FP Series (EEE-FP1A681AL): Original specification with 80 mOhm ESR and 595 mA ripple current at 120 Hz. Suitable for applications requiring lower ESR performance.

Panasonic FK Series (EEE-FK1A681GL, EEE-FK1A681P): Equivalent electrical performance with 160 mOhm ESR. Available in both Tape & Reel and Cut Tape & Digi-Reel packaging formats. The EEE-FK1A681P variant offers extended packaging flexibility for high-volume procurement.

Panasonic FN Series (EEE-FN1A681L, EEE-FN1A681P): Halogen-free construction with 160 mOhm ESR. Both variants carry identical electrical specifications with packaging differentiation between Tape & Reel formats.

Rubycon TKV Series (10TKV680M8X10.5): Cross-manufacturer equivalent with 80 mOhm ESR matching the original FP series performance. Suitable for applications requiring lower ESR specifications.

Chemi-Con Alchip™ MZA Series (EMZA100ARA681MHA0G): Cross-manufacturer equivalent with 160 mOhm ESR. Lowest ripple current rating at 120 Hz (360 mA), suitable for applications with reduced ripple current requirements.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1A681GL be used as a direct replacement for EEE-FP1A681AL?

A: Yes. Both parts share identical capacitance (680 µF), voltage rating (10 V), tolerance (±20%), operating temperature range (-55°C to 105°C), lifetime (2000 Hrs @ 105°C), physical dimensions (8.00mm diameter, 10.50mm height), and land size (8.30mm x 8.30mm). Both carry AEC-Q200 qualification, ROHS3 compliance, and MSL 1 rating. The primary difference is ESR specification (160 mOhm versus 80 mOhm), which does not prevent functional substitution in most automotive applications.

Q: What is the difference between EEE-FK1A681GL and EEE-FK1A681P?

A: Both parts are electrically and mechanically identical. The difference is packaging format: EEE-FK1A681GL is supplied in Tape & Reel (TR) format, while EEE-FK1A681P is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Are the Panasonic FN series parts (EEE-FN1A681L, EEE-FN1A681P) halogen-free?

A: Yes. Both FN series parts are designated as halogen-free, meeting environmental and regulatory requirements for applications with halogen-free material specifications.

Q: Can I substitute a cross-manufacturer part like 10TKV680M8X10.5 (Rubycon) for the original EEE-FP1A681AL?

A: Yes. The Rubycon 10TKV680M8X10.5 meets all critical electrical and mechanical parameters: 680 µF capacitance, 10 V rating, ±20% tolerance, -55°C to 105°C operating range, 2000 Hrs @ 105°C lifetime, identical physical dimensions, AEC-Q200 qualification, ROHS3 compliance, and MSL 1 rating. ESR specification (80 mOhm) matches the original part.

Q: What is the ripple current difference between substitute parts, and does it matter?

A: Ripple current ratings vary across substitutes. The original EEE-FP1A681AL specifies 595 mA @ 120 Hz and 850 mA @ 100 kHz. Substitute parts range from 360 mA to 510 mA @ 120 Hz and 600 mA to 850 mA @ 100 kHz. Selection should be based on actual circuit ripple current requirements. Parts with lower ripple current ratings are suitable for applications with reduced ripple current demands.

Q: Are all substitute parts suitable for automotive applications?

A: Yes. All identified substitute parts carry AEC-Q200 qualification and are designated for automotive applications, meeting the same reliability and quality standards as the original EEE-FP1A681AL.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component has unlimited shelf life without special moisture control measures. All parts in this equivalency group carry MSL 1 rating.

Q: Can I mix different substitute parts in the same assembly?

A: Yes. All substitute parts meet identical core electrical and mechanical specifications, allowing mixed usage within the same design. However, assembly process parameters (reflow profile, handling procedures) should be validated for each specific part number to ensure manufacturing consistency.

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