EEU-FC2A151B Equivalent & Substitute Parts

Part Overview

The EEU-FC2A151B is a 150 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 5000 hours at 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active and available in Tape & Box packaging with 662 units in stock.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00mm)
Diameter	0.492" (12.50mm)
Height	1.063" (27.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance (150 µF), voltage rating (100 V), tolerance (±20%), polarization (polar), package type (radial can), mounting type (through hole), and operating temperature range (-55°C ~ 105°C).

Substitute parts are grouped into two categories:

Direct Equivalents (Same Lead Spacing and Height): Parts with identical lead spacing (0.197" / 5.00mm) and height (1.063" / 27.00mm) are direct mechanical and electrical equivalents. These include EEU-FC2A151, UPJ2A151MHD, UPM2A151MHD, UPS2A151MHD, UPW2A151MHD, and UPM2A151MHD1TO.

Dimensional Variants (Different Lead Spacing and Height): Parts with lead spacing of 0.295" (7.50mm) and varying heights (0.591" to 0.669") are EEU-FC2A151S, UPJ2A151MHD6, and UPM2A151MHD6. These require PCB layout verification before substitution.

All substitute parts maintain the core electrical specifications: 150 µF capacitance, 100 V rating, ±20% tolerance, polar configuration, and through-hole mounting.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Impedance	Product Status	Packaging
EEU-FC2A151B	Panasonic	150 µF	100 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	110 mOhms	Active	Tape & Box
EEU-FC2A151	Panasonic	150 µF	100 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.984" (25.00mm)	110 mOhms	Active	Bulk
EEU-FC2A151S	Panasonic	150 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.591" (15.00mm)	120 mOhms	Active	Bulk
UPJ2A151MHD	Nichicon	150 µF	100 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	110 mOhms	Not For New Designs	Bulk
UPJ2A151MHD6	Nichicon	150 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.650" (16.50mm)	120 mOhms	Not For New Designs	Bulk
UPM2A151MHD	Nichicon	150 µF	100 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	110 mOhms	Not For New Designs	Bulk
UPM2A151MHD6	Nichicon	150 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.669" (17.00mm)	120 mOhms	Not For New Designs	Bulk
UPM2A151MHD1TO	Nichicon	150 µF	100 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	110 mOhms	Not For New Designs	Cut Tape
UPS2A151MHD	Nichicon	150 µF	100 V	±20%	3000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	130 mOhms	Not For New Designs	Bulk
UPW2A151MHD	Nichicon	150 µF	100 V	±20%	7000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.984" (25.00mm)	130 mOhms	Not For New Designs	Bulk

Engineering Selection Recommendations

For Active Production: EEU-FC2A151 (Panasonic, bulk packaging) is the primary substitute. It maintains identical electrical specifications and AEC-Q200 automotive qualification with 1114 units in stock. The height difference (0.984" vs. 1.063") requires PCB layout verification.

For Automotive Applications: UPM2A151MHD and UPM2A151MHD1TO (Nichicon UPM series) both carry AEC-Q200 ratings and match the original part's 5000-hour lifetime specification. However, both are marked "Not For New Designs," limiting their use to legacy or existing production lines.

For Dimensional Compatibility: EEU-FC2A151S and UPM2A151MHD6 provide alternative lead spacing (0.295" vs. 0.197") and require PCB footprint redesign. These are suitable only when layout constraints permit the larger 0.709" diameter and modified lead spacing.

For Extended Lifetime Requirements: UPW2A151MHD (Nichicon UPW series) offers 7000 hours at 105°C, exceeding the original 5000-hour specification. This part is marked "Not For New Designs" and has higher impedance (130 mOhms vs. 110 mOhms).

For Reduced Lifetime Applications: UPS2A151MHD (Nichicon UPS series) provides 3000 hours at 105°C with higher impedance (130 mOhms). This part is marked "Not For New Designs" and is suitable only for non-critical applications where reduced lifetime is acceptable.

All substitute parts are ROHS3 compliant and maintain the -55°C to 105°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can EEU-FC2A151 replace EEU-FC2A151B directly on the PCB?

A: EEU-FC2A151 has identical lead spacing (0.197" / 5.00mm) and diameter (0.492" / 12.50mm), but the height is 0.984" versus 1.063". Verify clearance above the component before substitution. The electrical specifications and automotive qualification are equivalent.

Q: What is the difference between parts with 0.197" and 0.295" lead spacing?

A: Lead spacing determines PCB hole pattern. Parts with 0.295" spacing (EEU-FC2A151S, UPJ2A151MHD6, UPM2A151MHD6) require different PCB footprints and cannot be used interchangeably with 0.197" spacing parts without layout redesign.

Q: Why are Nichicon parts marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued these parts for new applications. They remain available for existing production and legacy support but should not be selected for new product development.

Q: Does UPS2A151MHD meet the same lifetime requirement?

A: No. UPS2A151MHD provides 3000 hours at 105°C, while the original EEU-FC2A151B specifies 5000 hours. This part is suitable only for applications with reduced lifetime requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: No. Only EEU-FC2A151B, EEU-FC2A151, UPM2A151MHD, UPM2A151MHD6, and UPM2A151MHD1TO carry AEC-Q200 automotive qualification. Nichicon UPJ and UPS series parts do not list AEC-Q200 ratings.

Q: What packaging formats are available?

A: EEU-FC2A151B is supplied in Tape & Box. EEU-FC2A151 and most Nichicon substitutes are available in Bulk. UPM2A151MHD1TO is supplied in Cut Tape format. Packaging selection depends on manufacturing process requirements.

Q: Can I use UPW2A151MHD for extended reliability?

A: UPW2A151MHD offers 7000 hours at 105°C versus the original 5000 hours, providing additional margin. However, it is marked "Not For New Designs" and has higher impedance (130 mOhms vs. 110 mOhms), which may affect circuit performance in ripple-sensitive applications.

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