AFK227M25F24B-F Equivalent & Substitute Parts

Part Overview

The AFK227M25F24B-F is a 220 µF, 25 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a surface mount radial can package. This component is rated for automotive applications with AEC-Q200 qualification and operates across a temperature range of -55°C to 105°C with a 2000-hour lifetime at 105°C. The part is discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for existing designs and production requirements.

Substiute Parts

AFK227M25F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 911AFK227M25F24B-F Datasheet

Current PartRFQ

EEE-FK1E221AP

Panasonic Electronic ComponentsIn Stock: 3921EEE-FK1E221AP Datasheet

DirectRFQ

EEE-FK1E221P

Panasonic Electronic ComponentsIn Stock: 8856EEE-FK1E221P Datasheet

DirectRFQ

EMZA250ARA221MHA0G

Chemi-ConIn Stock: 7152EMZA250ARA221MHA0G Datasheet

DirectRFQ

UCL1E221MNL1GS

NichiconIn Stock: 11167UCL1E221MNL1GS Datasheet

DirectRFQ

EMVY250ARA221MHA0G

Chemi-ConIn Stock: 1245EMVY250ARA221MHA0G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFK227M25F24B-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 220 µF (exact match)
• Voltage Rating: 25 V (exact match)
• Tolerance: ±20% (exact match)
• Lifetime: 2000 Hrs @ 105°C (exact match)
• Operating Temperature: -55°C to 105°C (exact match)
• Polarization: Polar (exact match)

Mechanical Equivalence Requirements:

• Package Type: Radial, Can - SMD (exact match)
• Physical Diameter: 0.315" (8.00 mm) (exact match)
• Physical Height: 0.413" (10.50 mm) or 0.394" (10.00 mm) (within PCB clearance tolerance)
• Mounting Type: Surface Mount (exact match)

Compliance Requirements:

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

Substitute parts are classified as Direct Substitutes when all electrical and mechanical parameters match within specified tolerances. Parts designated as Similar may have variations in ripple current handling or impedance characteristics but maintain core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Recommended Priority Order):

1. EEE-FK1E221P (Panasonic) - Active product status with 8766 units in stock. Maintains all electrical parameters including 450 mA ripple current at 120 Hz and 160 mOhm ESR. Physical dimensions match exactly. AEC-Q200 rated for automotive applications. Tape & Reel packaging.

2. EEE-FK1E221AP (Panasonic) - Active product status with 3818 units in stock. Equivalent electrical specifications with 160 mOhm ESR and 600 mA ripple current at 100 kHz. Rated for high temperature reflow. Physical dimensions match exactly. AEC-Q200 rated. Tape & Reel packaging.

3. EMZA250ARA221MHA0G (Chemi-Con Alchip™-MZA Series) - Active product status with 7116 units in stock. Maintains 160 mOhm ESR and 600 mA ripple current at 100 kHz. Physical dimensions match exactly. AEC-Q200 rated for automotive applications. Tape & Reel packaging.

Similar Substitutes (Application-Dependent):

4. UCL1E221MNL1GS (Nichicon UCL Series) - Active product status with 11101 units in stock. Lower ESR at 80 mOhm and higher ripple current capability at 850 mA @ 100 kHz. Physical height is 0.394" (10.00 mm) versus 0.413" (10.50 mm). General purpose rated. Tape & Reel packaging. Suitable for applications requiring lower impedance performance.

5. EMVY250ARA221MHA0G (Chemi-Con Alchip™-MVY Series) - Active product status with 1165 units in stock. Higher ESR at 300 mOhm and lower ripple current at 450 mA @ 100 kHz. Physical height is 0.394" (10.00 mm). General purpose rated. Tape & Reel packaging. Suitable only for applications with reduced ripple current requirements.

All substitute parts maintain RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) classification. Selection should prioritize direct substitutes for applications requiring exact electrical performance matching. Similar substitutes require circuit-level evaluation of ripple current and impedance tolerance.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1E221P be used as a direct replacement for AFK227M25F24B-F?

A: Yes. EEE-FK1E221P is a direct substitute. Both parts share identical capacitance (220 µF), voltage rating (25 V), tolerance (±20%), ESR (160 mOhm @ 100 kHz), ripple current specifications (450 mA @ 120 Hz, 600 mA @ 100 kHz), physical diameter (8.00 mm), and physical height (10.50 mm). Both are RoHS3 compliant with MSL 1 rating and AEC-Q200 automotive qualification.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes maintain all electrical parameters including ESR and ripple current ratings within the original specification. Similar substitutes meet core electrical requirements (capacitance, voltage, tolerance, lifetime, temperature range) but may have different ESR or ripple current handling characteristics. Similar substitutes require circuit-level evaluation to confirm suitability for the specific application.

Q: Why does UCL1E221MNL1GS have a lower ESR than the original part?

A: The UCL1E221MNL1GS is specified with 80 mOhm ESR versus 160 mOhm for the AFK227M25F24B-F. This lower impedance is a characteristic of the Nichicon UCL series design. While this provides superior ripple current handling (850 mA @ 100 kHz), it represents a design variation and requires confirmation that the application circuit can accommodate the different impedance profile.

Q: Are all substitute parts automotive-rated?

A: EEE-FK1E221AP, EEE-FK1E221P, and EMZA250ARA221MHA0G carry AEC-Q200 automotive qualification. UCL1E221MNL1GS and EMVY250ARA221MHA0G are rated for general purpose applications. For automotive applications, direct substitutes with AEC-Q200 rating are recommended.

Q: What is the significance of the physical height difference between 0.413" and 0.394"?

A: The 0.019" (0.50 mm) height difference between the original part and some substitutes (UCL1E221MNL1GS, EMVY250ARA221MHA0G) must be evaluated against PCB clearance requirements. If the design has height constraints or clearance limitations, the taller 0.413" (10.50 mm) parts are preferred. If clearance is not a constraint, the shorter 0.394" (10.00 mm) parts are acceptable.

Q: Can EMVY250ARA221MHA0G be used in high ripple current applications?

A: EMVY250ARA221MHA0G is specified for 225 mA ripple current at 120 Hz and 450 mA at 100 kHz, which is lower than the original part's 450 mA and 600 mA specifications. This part is suitable only for applications with reduced ripple current demands. For applications requiring the full 450 mA @ 120 Hz and 600 mA @ 100 kHz ripple current handling, direct substitutes are required.

Q: What packaging format is available for these substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for surface mount production environments. The original AFK227M25F24B-F packaging format is not specified in the available data.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited) classification, matching the environmental compliance profile of the original AFK227M25F24B-F.