EEU-FC1C680H Equivalent & Substitute Parts

Part Overview

The EEU-FC1C680H is a 68 µF, 16 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 1000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently in active production status with 780 pieces available in cut tape packaging.

Substitute parts are identified when electrical specifications (capacitance, voltage rating, tolerance, temperature range, ripple current capability) and mechanical parameters (lead spacing, case size, mounting type) align with application requirements. Alternative sources may be necessary due to packaging availability, lead time constraints, or inventory considerations.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	16 V
Tolerance	±20%
Operating Temperature Range	-55°C to 105°C
Lifetime @ Temperature	1000 Hrs @ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.197" (5.00 mm)
Height (Seated Max)	0.472" (12.00 mm)
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-FC1C680H is determined by the following criteria:

Electrical Equivalence Requirements:

Capacitance: 68 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -55°C to 105°C (exact match required)
Polarization: Polar (exact match required)
AEC-Q200 Automotive Rating: Required for automotive applications

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.098" (2.50 mm) or 0.079" (2.00 mm) acceptable with PCB layout verification
Case Diameter: 5.00 mm or 6.30 mm acceptable with board space verification
Height: 12.00 mm or 12.50 mm acceptable with clearance verification

Compliance Requirements:

RoHS3 Compliant (required)
REACH Unaffected or compliant (required)

Identified substitutes meet these core criteria while maintaining functional equivalence for the specified application.

Parameter Comparison

Parameter	EEU-FC1C680H (Main)	EEU-FC1C680 (Panasonic)	UPM1C680MED (Nichicon)
Manufacturer	Panasonic	Panasonic	Nichicon
Capacitance	68 µF	68 µF	68 µF
Voltage Rating	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ 105°C	1000 Hrs	1000 Hrs	2000 Hrs
Polarization	Polar	Polar	Polar
AEC-Q200 Rating	Yes	Yes	Yes
Ripple Current @ 120 Hz	113.8 mA	113.8 mA	135 mA
Ripple Current @ High Frequency	175 mA @ 100 kHz	175 mA @ 100 kHz	240 mA @ 10 kHz
Impedance	800 mOhms	800 mOhms	500 mOhms
Lead Spacing	0.098" (2.50 mm)	0.079" (2.00 mm)	0.098" (2.50 mm)
Case Diameter	0.197" (5.00 mm)	0.197" (5.00 mm)	0.248" (6.30 mm)
Height (Seated Max)	0.472" (12.00 mm)	0.472" (12.00 mm)	0.492" (12.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
Product Status	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

EEU-FC1C680 (Panasonic, Bulk Packaging)

This substitute maintains identical electrical specifications and core mechanical dimensions to the main part. The primary difference is packaging format (bulk versus cut tape) and lead spacing (0.079" versus 0.098"). The reduced lead spacing requires PCB layout verification to confirm hole pattern compatibility. Product status is active with higher inventory availability (11,103 pieces). This option is suitable for applications where packaging format is not a constraint and PCB design accommodates the modified lead spacing.

UPM1C680MED (Nichicon, Bulk Packaging)

This substitute meets all core electrical requirements with identical capacitance, voltage, tolerance, and temperature range. The component offers extended lifetime (2000 hours at 105°C versus 1000 hours), lower impedance (500 mOhms versus 800 mOhms), and higher ripple current capability. Mechanical differences include larger case diameter (6.30 mm versus 5.00 mm) and increased height (12.50 mm versus 12.00 mm), requiring board space verification. Product status is obsolete; selection should be based on long-term availability requirements and application-specific performance needs.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC1C680 be used as a direct replacement for EEU-FC1C680H?

A: Electrical specifications are identical. The primary consideration is lead spacing: EEU-FC1C680 has 0.079" (2.00 mm) spacing versus 0.098" (2.50 mm) for the main part. PCB hole pattern compatibility must be verified before substitution.

Q: What is the difference between cut tape and bulk packaging?

A: Cut tape packaging (EEU-FC1C680H) provides individual component strips suitable for automated assembly lines. Bulk packaging (EEU-FC1C680) contains loose components in larger quantities. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Is UPM1C680MED suitable for new designs?

A: UPM1C680MED is classified as obsolete. While electrically and mechanically compatible, obsolete status indicates discontinued production. New designs should prioritize active-status components (EEU-FC1C680H or EEU-FC1C680) to ensure long-term supply chain stability.

Q: What are the mechanical constraints when substituting UPM1C680MED?

A: UPM1C680MED has a larger case diameter (6.30 mm versus 5.00 mm) and greater height (12.50 mm versus 12.00 mm). Board layout must accommodate these dimensions, including clearance for adjacent components and solder connections.

Q: Do all three parts meet automotive qualification requirements?

A: Yes. All three components carry AEC-Q200 automotive rating and are ROHS3 compliant, meeting automotive industry standards for reliability and environmental compliance.

Q: How do ripple current specifications affect component selection?

A: Ripple current capability determines thermal performance under AC current conditions. UPM1C680MED offers higher ripple current ratings (135 mA @ 120 Hz, 240 mA @ 10 kHz) compared to both Panasonic variants (113.8 mA @ 120 Hz, 175 mA @ 100 kHz). Selection should match application ripple current requirements to ensure thermal stability.

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