AHA337M06F24B-F Equivalent & Substitute Parts

Part Overview

The AHA337M06F24B-F is a 330 µF, 6.3 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in surface mount radial can package. This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 qualification. The part is discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility within the specified parameter envelope.

Substiute Parts

AHA337M06F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 781AHA337M06F24B-F Datasheet

Current PartRFQ

EEE-FK0J331AP

Panasonic Electronic ComponentsIn Stock: 4552EEE-FK0J331AP Datasheet

DirectRFQ

EEE-FK0J331P

Panasonic Electronic ComponentsIn Stock: 5140EEE-FK0J331P Datasheet

DirectRFQ

UCL0J331MCL6GS

NichiconIn Stock: 3794UCL0J331MCL6GS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AHA337M06F24B-F is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

• Capacitance value: 330 µF (exact match required)
• Rated voltage: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime specification: 2000 Hrs @ 105°C (exact match required)
• Operating temperature range: -55°C ~ 105°C (exact match or wider range acceptable)
• Polarization: Polar (exact match required)

Critical Mechanical Parameters:

• Package type: Radial, Can - SMD (exact match required)
• Diameter: 0.315" (8.00mm) (exact match required)
• Surface mount land size: 0.327" L x 0.327" W (8.30mm x 8.30mm) (exact match required)
• Mounting type: Surface Mount (exact match required)

Compliance Parameters:

• RoHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria. Secondary parameters such as ESR, ripple current ratings, and impedance values are provided for performance comparison but do not disqualify substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts satisfy the critical electrical and mechanical parameters required for direct substitution of the AHA337M06F24B-F. Selection among these alternatives is based on product availability, compliance requirements, and secondary performance characteristics.

EEE-FK0J331AP (Panasonic): This part is AEC-Q200 qualified and rated for high temperature reflow applications. It maintains active product status with 4522 units in stock. The reduced height (6.50mm vs. 10.20mm) provides improved PCB layout flexibility. Ripple current at 120 Hz is 195 mA, which is lower than the original specification.

EEE-FK0J331P (Panasonic): This part is AEC-Q200 qualified with automotive application rating. It maintains active product status with 5100 units in stock. The reduced height (6.50mm) matches the EEE-FK0J331AP variant. Ripple current at 120 Hz is 225 mA, closely aligned with the original 230 mA specification.

UCL0J331MCL6GS (Nichicon): This part maintains active product status with 3720 units in stock. The lowest height profile (6.20mm) offers maximum PCB layout optimization. Ripple current performance is superior at 250 mA @ 120 Hz and 500 mA @ 100 kHz. AEC-Q200 rating is not specified for this part.

For automotive applications requiring AEC-Q200 compliance, EEE-FK0J331P is the preferred substitute due to active status, adequate ripple current specification, and full automotive qualification. For general-purpose applications where AEC-Q200 is not mandatory, UCL0J331MCL6GS offers superior ripple current performance and compact form factor.

Frequently Asked Questions (FAQ)

Q: Can the substitute parts be used interchangeably with the AHA337M06F24B-F on existing PCBs?

A: Yes. All substitute parts share identical capacitance (330 µF), voltage rating (6.3 V), tolerance (±20%), lifetime specification (2000 Hrs @ 105°C), operating temperature range (-55°C ~ 105°C), and surface mount land size (0.327" L x 0.327" W). The substitute parts have reduced seated heights (6.20mm to 6.50mm vs. 10.20mm), which is mechanically compatible with existing PCB layouts designed for the original part.

Q: What is the significance of the height difference between the original part and substitutes?

A: The AHA337M06F24B-F has a seated height of 10.20mm, while all substitute parts range from 6.20mm to 6.50mm. This reduction in height does not affect electrical compatibility or PCB land pattern alignment. The smaller height may improve thermal performance and reduce mechanical stress on solder joints in vibration-prone automotive environments.

Q: Are all substitute parts suitable for automotive applications?

A: EEE-FK0J331AP and EEE-FK0J331P are both AEC-Q200 qualified and explicitly rated for automotive applications. UCL0J331MCL6GS does not specify AEC-Q200 qualification and is rated for general-purpose applications. For automotive designs requiring AEC-Q200 compliance, select either Panasonic part.

Q: How do ripple current ratings affect part selection?

A: Ripple current capacity determines the maximum AC current the capacitor can handle without exceeding temperature limits. The original AHA337M06F24B-F specifies 230 mA @ 120 Hz. EEE-FK0J331P (225 mA @ 120 Hz) closely matches this specification. UCL0J331MCL6GS (250 mA @ 120 Hz) exceeds the original specification. EEE-FK0J331AP (195 mA @ 120 Hz) is lower. For applications with high ripple current demands, UCL0J331MCL6GS or EEE-FK0J331P are preferred.

Q: What is the difference between impedance and ESR specifications?

A: ESR (Equivalent Series Resistance) and impedance are related but distinct parameters. The original part specifies ESR of 1.8 Ohm @ 120 Hz. Substitute parts provide impedance values (180 mOhms to 260 mOhms), which represent impedance at higher frequencies (100 kHz). These parameters cannot be directly compared across different measurement frequencies. Both characterize the capacitor's resistance to AC current flow.

Q: Can I use UCL0J331MCL6GS in an automotive application if AEC-Q200 is required?

A: No. If your design specification mandates AEC-Q200 qualification, UCL0J331MCL6GS is not suitable because it does not specify AEC-Q200 rating. Use EEE-FK0J331AP or EEE-FK0J331P for automotive applications requiring this qualification.

Q: What is the packaging difference between the parts?

A: All parts are supplied in Tape & Reel (TR) packaging for automated assembly. The original AHA337M06F24B-F packaging format is not specified in the provided data. All substitute parts are compatible with standard surface mount assembly equipment and processes.

Q: Are all parts RoHS3 compliant?

A: Yes. All parts, including the original AHA337M06F24B-F and all three substitutes, are ROHS3 compliant. All parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.