AFK337M10F24B-F Equivalent & Substitute Parts

Part Overview

The AFK337M10F24B-F is a 330 µF, 10 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a surface mount radial can package. This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 qualification. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain electrical performance characteristics and mechanical compatibility for direct board-level replacement.

Substiute Parts

AFK337M10F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 1089AFK337M10F24B-F Datasheet

Current PartRFQ

EEE-FK1A331AP

Panasonic Electronic ComponentsIn Stock: 2790EEE-FK1A331AP Datasheet

DirectRFQ

EEE-FK1A331P

Panasonic Electronic ComponentsIn Stock: 3288EEE-FK1A331P Datasheet

DirectRFQ

EMZA100ARA331MHA0G

Chemi-ConIn Stock: 1225EMZA100ARA331MHA0G Datasheet

DirectRFQ

UCL1A331MNL1GS

NichiconIn Stock: 13899UCL1A331MNL1GS Datasheet

DirectRFQ

EMVY100ARA331MHA0G

Chemi-ConIn Stock: 754EMVY100ARA331MHA0G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature: -55°C to 105°C (exact match required)
• Lifetime: 2000 Hrs @ 105°C (exact match or better required)

Critical Mechanical Parameters:

• Package Type: Radial, Can - SMD (exact match required)
• Case Diameter: 8.00 mm (exact match required)
• Case Height: 10.50 mm (exact match required)
• Surface Mount Land Size: 8.30 mm × 10.00 mm minimum compatibility

Performance Parameters:

• Impedance: 160 mOhms (preferred match; variations acceptable within ±50 mOhms for equivalent performance)
• Ripple Current @ 100 kHz: 600 mA (minimum requirement; higher values acceptable)
• Ripple Current @ 120 Hz: 450 mA (minimum requirement; higher values acceptable)

Compliance Requirements:

• RoHS3 Compliant (mandatory)
• Moisture Sensitivity Level 1 (mandatory)
• AEC-Q200 rated (preferred for automotive applications)

Parts meeting all critical parameters are classified as Direct Substitutes. Parts meeting all critical parameters except AEC-Q200 rating are classified as Compatible Alternatives.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Recommended):

The following parts are direct substitutes for AFK337M10F24B-F and meet all critical electrical, mechanical, and compliance requirements:

1. EEE-FK1A331P (Panasonic) - Preferred primary substitute

   • Active product status with highest inventory availability (3242 pcs)
   • Identical electrical specifications and mechanical dimensions
   • AEC-Q200 automotive qualification maintained
   • Tape & Reel packaging for automated assembly

2. EEE-FK1A331AP (Panasonic) - Secondary substitute

   • Active product status with strong inventory (2680 pcs)
   • Identical electrical specifications and mechanical dimensions
   • AEC-Q200 automotive qualification with high-temperature reflow capability
   • Tape & Reel packaging for automated assembly

3. EMZA100ARA331MHA0G (Chemi-Con Alchip™ MZA) - Tertiary substitute

   • Active product status with adequate inventory (1148 pcs)
   • Identical electrical specifications and mechanical dimensions
   • AEC-Q200 automotive qualification maintained
   • Tape & Reel packaging for automated assembly

Compatible Alternatives (Conditional Use):

The following parts meet all critical electrical and mechanical requirements but lack AEC-Q200 automotive qualification:

4. UCL1A331MNL1GS (Nichicon UCL Series)

   • Active product status with highest inventory (13801 pcs)
   • Meets all electrical and mechanical specifications
   • Case height 10.00 mm (0.50 mm shorter than original; acceptable for most applications)
   • Superior ripple current performance (850 mA @ 100 kHz vs. 600 mA)
   • Lower impedance (80 mOhms vs. 160 mOhms) provides better high-frequency performance
   • Suitable for non-automotive or general-purpose applications
   • Tape & Reel packaging

5. EMVY100ARA331MHA0G (Chemi-Con Alchip™ MVY)

   • Active product status with limited inventory (692 pcs)
   • Case height 10.00 mm (0.50 mm shorter than original; acceptable for most applications)
   • Reduced ripple current performance (450 mA @ 100 kHz vs. 600 mA)
   • Higher impedance (300 mOhms vs. 160 mOhms) may impact high-frequency performance
   • Not recommended for high-ripple-current applications
   • Suitable only for general-purpose applications with lower current demands

Selection Criteria:

• For automotive applications: Select from Direct Substitutes (EEE-FK1A331P, EEE-FK1A331AP, or EMZA100ARA331MHA0G)
• For high-ripple-current applications: UCL1A331MNL1GS provides superior performance
• For space-constrained designs: UCL1A331MNL1GS or EMVY100ARA331MHA0G (10.00 mm height)
• For general-purpose applications: Any substitute is acceptable based on availability and cost

Frequently Asked Questions (FAQ)

Q1: Can I use UCL1A331MNL1GS as a direct replacement for AFK337M10F24B-F in automotive applications?

A: UCL1A331MNL1GS meets all electrical and mechanical specifications but lacks AEC-Q200 automotive qualification. For automotive applications requiring AEC-Q200 compliance, use EEE-FK1A331P, EEE-FK1A331AP, or EMZA100ARA331MHA0G instead.

Q2: What is the significance of the 0.50 mm height difference between the original part (10.50 mm) and UCL1A331MNL1GS (10.00 mm)?

A: The 0.50 mm height reduction is typically acceptable for most PCB designs with standard clearance margins. Verify clearance in your specific application, particularly if components are mounted in close proximity or under shielding.

Q3: Why does EMVY100ARA331MHA0G have lower ripple current ratings than the original part?

A: EMVY100ARA331MHA0G is from the Alchip™ MVY series, which is optimized for general-purpose applications rather than high-ripple-current environments. Use this part only in applications with ripple current demands below 450 mA @ 100 kHz.

Q4: Are all substitute parts available in Tape & Reel packaging?

A: EEE-FK1A331P, EEE-FK1A331AP, EMZA100ARA331MHA0G, and UCL1A331MNL1GS are available in Tape & Reel packaging suitable for automated assembly. EMVY100ARA331MHA0G is available in bulk packaging.

Q5: What does AEC-Q200 qualification mean for capacitor selection?

A: AEC-Q200 is an automotive electronics qualification standard ensuring the component meets reliability, performance, and environmental stress testing requirements for automotive applications. For automotive designs, select only AEC-Q200 qualified substitutes.

Q6: Can I substitute EMZA100ARA331MHA0G for EEE-FK1A331P without design changes?

A: Yes. Both parts have identical capacitance, voltage, tolerance, temperature range, lifetime, case diameter, and case height. The surface mount land size differs slightly (8.30 mm × 8.30 mm vs. 8.30 mm × 10.00 mm), but both are compatible with standard 330 µF 10 V SMD footprints.

Q7: Which substitute offers the best performance for high-frequency decoupling applications?

A: UCL1A331MNL1GS provides the lowest impedance (80 mOhms) and highest ripple current capability (850 mA @ 100 kHz), making it optimal for high-frequency decoupling. However, it lacks AEC-Q200 qualification for automotive use.

Q8: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All substitute parts listed are RoHS3 compliant and have MSL rating 1 (unlimited moisture sensitivity), matching the original part's environmental compliance profile.