EEE-FK2A331AM Equivalent & Substitute Parts

Part Overview

The EEE-FK2A331AM is a 330 µF, 100 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components in surface mount radial can configuration. This component is rated for automotive applications with AEC-Q200 compliance and designed for high-temperature operation up to 105°C with a 5000-hour lifetime rating. The part is actively produced and widely used in automotive power supply circuits, filtering, and energy storage applications where reliable performance under thermal stress is required.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and reliability certifications can be maintained across different manufacturers while meeting the same functional requirements.

Substiute Parts

EEE-FK2A331AM

Panasonic Electronic ComponentsIn Stock: 866EEE-FK2A331AM Datasheet

Current PartRFQ

EEV-FK2A331M

Panasonic Electronic ComponentsIn Stock: 2037EEV-FK2A331M Datasheet

UpgradeRFQ

AFK337M2AR44T-F

Cornell Dubilier Electronics (CDE)In Stock: 10151AFK337M2AR44T-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EEE-FK2A331AM is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 100 V (minimum, no downrating permitted)
• Tolerance: ±20% (matching tolerance band)
• Lifetime: 5000 Hrs @ 105°C (minimum thermal endurance)
• Operating Temperature: -55°C ~ 105°C (full range coverage)
• Polarization: Polar (configuration match)

Mechanical Compatibility Requirements:

• Package Type: Radial, Can - SMD (surface mount configuration)
• Physical Diameter: 0.709" (18.00 mm) (PCB footprint constraint)
• Physical Height: 0.669" (17.00 mm) (clearance constraint)
• Mounting Type: Surface Mount (assembly process compatibility)

Compliance & Certification Requirements:

• AEC-Q200 Rating (automotive qualification)
• RoHS3 Compliance (environmental regulation)
• Moisture Sensitivity Level 1 (unlimited shelf life)

Parts meeting all three requirement categories are classified as direct substitutes. Parts with minor variations in non-critical parameters (such as impedance or ripple current specifications) are classified as compatible alternatives when all critical parameters align.

Parameter Comparison

Engineering Selection Recommendations

EEV-FK2A331M (Panasonic Upgrade)

The EEV-FK2A331M is a direct equivalent to the EEE-FK2A331AM with identical electrical specifications, physical dimensions, and land pattern footprint. Both parts are manufactured by Panasonic Electronic Components within the same FK series family. This substitute maintains full compatibility with existing PCB designs and assembly processes. Selection of this part is appropriate when supply constraints affect the EEE-FK2A331AM or when design flexibility permits use of alternative Panasonic production batches.

AFK337M2AR44T-F (Cornell Dubilier Electronics Alternative)

The AFK337M2AR44T-F manufactured by Cornell Dubilier Electronics meets all critical electrical and thermal specifications with identical capacitance, voltage rating, tolerance, and lifetime ratings. This part carries AEC-Q200 automotive qualification and ROHS3 compliance matching the primary part. The surface mount land size differs slightly in the width dimension (0.827" versus 0.748"), requiring PCB footprint verification before implementation. The impedance specification is marginally lower at 150 mOhms compared to 153 mOhms, representing a minor performance advantage in high-frequency ripple current applications. This substitute is suitable for designs where PCB layout accommodates the modified land pattern and where supply availability of the Panasonic parts is constrained.

Frequently Asked Questions (FAQ)

Q: Can the EEV-FK2A331M be used as a direct replacement for the EEE-FK2A331AM without PCB modification?

A: Yes. The EEV-FK2A331M maintains identical physical dimensions (0.709" diameter, 0.669" height) and surface mount land pattern (0.748" L x 0.748" W). No PCB layout changes are required for this substitution.

Q: What is the primary difference between the EEE-FK2A331AM and the AFK337M2AR44T-F?

A: Both parts are electrically and thermally equivalent with matching 330 µF capacitance, 100 V voltage rating, and 5000-hour lifetime at 105°C. The AFK337M2AR44T-F has a surface mount land width of 0.827" compared to 0.748" for the Panasonic parts. PCB footprint compatibility must be verified before selection.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and are rated for the -55°C to 105°C operating temperature range required in automotive power supply circuits.

Q: What is the significance of the impedance difference between the Panasonic parts (153 mOhms) and the CDE part (150 mOhms)?

A: The impedance values are within normal manufacturing tolerance ranges for aluminum electrolytic capacitors. The 3 mOhm difference is negligible for most circuit applications and does not affect functional compatibility.

Q: Can the AFK337M2AR44T-F be used if the PCB footprint is designed for the Panasonic land pattern?

A: The AFK337M2AR44T-F has a wider land pattern (0.827" W versus 0.748" W). Physical compatibility depends on PCB layout spacing and solder pad design. Engineering review of the specific PCB layout is required before substitution.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All three parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 compliant and carry AEC-Q200 automotive qualification. All parts are REACH Unaffected and classified under ECCN EAR99.