ECA-2AHG330B Equivalent & Substitute Parts

Part Overview

The ECA-2AHG330B is a 33 µF, 100 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 1000 hours at 105°C and is supplied in Cut Tape packaging. The part is currently active in production.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when enhanced performance characteristics such as extended lifetime or improved ripple current handling are needed for specific applications.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	100 V
Tolerance	±20%
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.315" (8.00 mm)
Height	0.492" (12.50 mm)
Lifetime @ 105°C	1000 Hours
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ECA-2AHG330B is determined by the following critical parameters:

Electrical Parameters (Must Match):

Capacitance: 33 µF
Voltage Rating: 100 V
Tolerance: ±20%
Polarization: Polar

Mechanical Parameters (Must Match or Be Compatible):

Lead Spacing: 0.197" (5.00 mm)
Case Diameter: 0.315" (8.00 mm)
Mounting Type: Through Hole
Package Type: Radial, Can

Performance Parameters (May Vary):

Lifetime @ 105°C: 1000 hours or greater
Ripple Current ratings
Operating Temperature Range: -55°C to 105°C (minimum requirement)

Substitute parts are grouped into two categories:

Category 1: Same Series, Different Packaging ECA-2AHG330 differs only in packaging format (Bulk vs. Cut Tape) while maintaining identical electrical and mechanical specifications.

Category 2: Enhanced Performance Alternatives EEU-FC series parts offer extended lifetime (2000–3000 hours), improved ripple current handling, and automotive-grade certifications (AEC-Q200). These parts maintain core electrical parameters but feature different case diameters and heights.

Category 4: Third-Party Equivalents SEK330M100ST (Cornell Dubilier), UPJ2A330MPD, UPJ2A330MPD6, UPM2A330MPD, and UPM2A330MPD6 (Nichicon) provide electrical equivalence with variations in mechanical dimensions, lifetime ratings, and product status.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lead Spacing	Case Dia.	Height	Lifetime @ 105°C	Packaging	Product Status
ECA-2AHG330B	Panasonic	33 µF	100 V	±20%	0.197" (5.00 mm)	0.315" (8.00 mm)	0.492" (12.50 mm)	1000 Hrs	Cut Tape	Active
ECA-2AHG330	Panasonic	33 µF	100 V	±20%	0.138" (4.60 mm)	0.315" (8.00 mm)	0.492" (12.50 mm)	1000 Hrs	Bulk	Active
EEU-FC2A330	Panasonic	33 µF	100 V	±20%	0.197" (5.00 mm)	0.394" (10.00 mm)	0.492" (12.50 mm)	3000 Hrs	Bulk	Active
EEU-FC2A330B	Panasonic	33 µF	100 V	±20%	0.197" (5.00 mm)	0.394" (10.00 mm)	0.531" (14.60 mm)	3000 Hrs	Cut Tape	Active
EEU-FC2A330L	Panasonic	33 µF	100 V	±20%	0.138" (4.60 mm)	0.315" (8.00 mm)	0.591" (15.00 mm)	2000 Hrs	Bulk	Active
EEU-FC2A330LB	Panasonic	33 µF	100 V	±20%	0.197" (5.00 mm)	0.315" (8.00 mm)	0.807" (20.50 mm)	2000 Hrs	Cut Tape	Active
SEK330M100ST	Cornell Dubilier	33 µF	100 V	±20%	0.197" (5.00 mm)	0.394" (10.00 mm)	0.512" (13.00 mm)	2000 Hrs	Bulk	Active
UPJ2A330MPD	Nichicon	33 µF	100 V	±20%	0.138" (4.60 mm)	0.315" (8.00 mm)	0.630" (16.00 mm)	3000 Hrs	Bulk	Not For New Designs
UPJ2A330MPD6	Nichicon	33 µF	100 V	±20%	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	5000 Hrs	Bulk	Not For New Designs
UPM2A330MPD	Nichicon	33 µF	100 V	±20%	0.138" (4.60 mm)	0.315" (8.00 mm)	0.650" (16.50 mm)	3000 Hrs	Bulk	Not For New Designs
UPM2A330MPD6	Nichicon	33 µF	100 V	±20%	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	5000 Hrs	Bulk	Not For New Designs

Engineering Selection Recommendations

Direct Substitution (Same Footprint): ECA-2AHG330 is the direct equivalent of ECA-2AHG330B, differing only in packaging format. Both maintain identical electrical and mechanical specifications and are Active products suitable for new designs.

Enhanced Performance Within Same Footprint: EEU-FC2A330L and EEU-FC2A330LB maintain the 0.197" (5.00 mm) lead spacing and 0.315" (8.00 mm) case diameter of the primary part while offering extended lifetime (2000 hours) and AEC-Q200 automotive certification. These parts are Active and suitable for new designs.

Larger Case Alternatives with Extended Lifetime: EEU-FC2A330 and EEU-FC2A330B feature a larger 0.394" (10.00 mm) case diameter but maintain the 0.197" (5.00 mm) lead spacing. These parts offer 3000-hour lifetime and AEC-Q200 certification. Mechanical compatibility must be verified for PCB layout constraints.

Third-Party Alternatives: Nichicon UPJ and UPM series parts are marked "Not For New Designs" and should be used only for legacy system maintenance or when primary alternatives are unavailable. Cornell Dubilier SEK330M100ST is Active and provides electrical equivalence with a larger case diameter.

Compliance Considerations: All listed parts maintain ROHS3 compliance and EAR99 export classification. Panasonic FC-series parts carry AEC-Q200 automotive qualification; Nichicon UPM series also carries AEC-Q200 certification. Selection should align with application requirements and supply chain strategy.

Frequently Asked Questions (FAQ)

Q: Can ECA-2AHG330 replace ECA-2AHG330B directly? A: ECA-2AHG330 is electrically and mechanically equivalent to ECA-2AHG330B. The only difference is packaging format (Bulk vs. Cut Tape). Direct substitution is valid if your assembly process accommodates bulk packaging.

Q: What is the difference between EEU-FC2A330 and ECA-2AHG330B? A: Both parts share identical electrical specifications (33 µF, 100 V, ±20%). The EEU-FC2A330 offers extended lifetime (3000 hours vs. 1000 hours), higher ripple current capability, and AEC-Q200 automotive certification. The case diameter increases from 0.315" to 0.394", requiring PCB layout verification.

Q: Are Nichicon UPJ and UPM series parts suitable for new designs? A: No. Both UPJ and UPM series are marked "Not For New Designs." These parts are available for legacy system support only. For new designs, select from Active Panasonic or Cornell Dubilier alternatives.

Q: What does lead spacing mean, and why does it matter? A: Lead spacing is the distance between the two leads on the capacitor. The primary part ECA-2AHG330B has 0.197" (5.00 mm) spacing. Substitutes with different lead spacing (0.138" or 4.60 mm) require PCB redesign and cannot be used as drop-in replacements.

Q: Can I use a larger case diameter capacitor as a substitute? A: Larger case diameters (0.394" vs. 0.315") require verification of available PCB space. While electrical performance may be superior, mechanical fit must be confirmed before substitution.

Q: What is AEC-Q200 certification? A: AEC-Q200 is an automotive-grade qualification standard. Parts carrying this certification meet stringent reliability and performance requirements for automotive applications. It is not required for general-purpose applications but provides enhanced assurance for demanding environments.

Q: Why do some parts have different lifetime ratings? A: Lifetime ratings (1000, 2000, 3000, or 5000 hours at 105°C) reflect the expected operational duration under specified thermal stress. Higher lifetime ratings indicate superior internal construction and materials. Selection depends on application duty cycle and reliability requirements.

Q: Is ESR (Equivalent Series Resistance) important for substitution? A: ESR affects ripple current handling and thermal performance. The primary part does not specify ESR. Substitutes with lower ESR values (such as SEK330M100ST at 4.02 Ohm) provide improved performance in high-ripple-current applications.

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