AFK227M35F24B-F Equivalent & Substitute Parts

Part Overview

The AFK227M35F24B-F is a 220 µF, 35 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier Electronics (CDE). 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 the same capacitance, voltage rating, physical dimensions, and thermal performance characteristics to ensure direct compatibility in existing designs.

Substiute Parts

AFK227M35F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 930AFK227M35F24B-F Datasheet

Current PartRFQ

EEE-FK1V221AP

Panasonic Electronic ComponentsIn Stock: 38278EEE-FK1V221AP Datasheet

DirectRFQ

EEE-FK1V221P

Panasonic Electronic ComponentsIn Stock: 270384EEE-FK1V221P Datasheet

DirectRFQ

EMZA350ARA221MHA0G

Chemi-ConIn Stock: 178322EMZA350ARA221MHA0G Datasheet

DirectRFQ

UCL1V221MNL1GS

NichiconIn Stock: 2134UCL1V221MNL1GS Datasheet

DirectRFQ

EMVY350ARA221MHA0G

Chemi-ConIn Stock: 783EMVY350ARA221MHA0G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AFK227M35F24B-F are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes maintain all critical parameters within specified tolerances:

• Capacitance: 220 µF (±20% tolerance)
• Voltage Rating: 35 V
• Operating Temperature: -55°C to 105°C
• Lifetime: 2000 Hrs @ 105°C
• Physical Dimensions: 0.315" Dia (8.00mm), Height 0.413" (10.50mm) maximum
• Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm) or compatible
• Package: Radial, Can - SMD
• Polarization: Polar
• RoHS3 Compliance

Similar Substitutes meet core electrical specifications but may have minor variations in ripple current handling, impedance, or land size dimensions that require design verification for specific applications.

The following manufacturers provide equivalent parts: Panasonic Electronic Components (FK series), Chemi-Con (Alchip™ MZA and MVY series), and Nichicon (UCL series).

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Recommended for Automotive Applications):

EEE-FK1V221P (Panasonic) and EEE-FK1V221AP (Panasonic) are the primary recommended substitutes. Both parts maintain identical electrical specifications (220 µF, 35 V, ±20% tolerance, 2000 Hrs @ 105°C) and physical dimensions (0.315" Dia, 0.413" height maximum). Both are AEC-Q200 qualified for automotive applications and ROHS3 compliant. EEE-FK1V221P has higher inventory availability (270,300 pcs) compared to EEE-FK1V221AP (38,250 pcs). The land size difference (0.327" L x 0.327" W versus original 0.327" L x 0.394" W) is within acceptable PCB layout tolerances for surface mount radial can packages.

EMZA350ARA221MHA0G (Chemi-Con Alchip™ MZA series) is an active substitute with identical core specifications and AEC-Q200 qualification. This part maintains the same ripple current performance at 100 kHz (600 mA) and offers substantial inventory (178,300 pcs).

Tier 2 - Conditional Substitutes (Application-Dependent):

UCL1V221MNL1GS (Nichicon UCL series) meets all core electrical and thermal specifications but lacks AEC-Q200 certification. This part features lower ESR (80 mOhm versus 160 mOhm) and higher ripple current capability at 100 kHz (850 mA). Selection requires confirmation that automotive qualification is not mandatory for the specific application. Height is 0.394" (10.00mm), which is within the original 0.413" maximum specification.

EMVY350ARA221MHA0G (Chemi-Con Alchip™ MVY series) is classified as a similar substitute due to higher ESR (300 mOhm) and reduced ripple current performance (450 mA @ 100 kHz, 225 mA @ 120 Hz). This part lacks AEC-Q200 certification and is designated for general purpose applications. Selection is appropriate only when ripple current requirements are lower than the original design specification.

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1V221P be used as a direct replacement for AFK227M35F24B-F in automotive applications?

A: Yes. EEE-FK1V221P maintains identical capacitance (220 µF), voltage rating (35 V), tolerance (±20%), operating temperature range (-55 to 105°C), and thermal lifetime (2000 Hrs @ 105°C). Both parts are AEC-Q200 qualified and ROHS3 compliant. The physical dimensions are compatible: 0.315" diameter and 0.413" maximum height. The surface mount land size differs slightly (0.327" L x 0.327" W versus 0.327" L x 0.394" W), but this variation is within acceptable PCB layout tolerances for radial can packages.

Q: What is the difference between the Panasonic FK series substitutes (EEE-FK1V221AP and EEE-FK1V221P)?

A: Both parts are electrically and mechanically identical with respect to capacitance, voltage, tolerance, temperature range, and thermal lifetime. The primary difference is packaging and inventory availability. EEE-FK1V221P is available in Cut Tape (CT) and Digi-Reel® packaging with 270,300 pcs in stock. EEE-FK1V221AP is also available in Cut Tape and Digi-Reel® with 38,250 pcs in stock. Both are suitable for direct substitution.

Q: Why does UCL1V221MNL1GS have lower ESR (80 mOhm) than the original part (160 mOhm)?

A: ESR variation is a normal characteristic difference between manufacturers and product series. The Nichicon UCL series is designed with lower impedance characteristics, which results in superior ripple current handling (850 mA @ 100 kHz versus 600 mA). Lower ESR generates less heat during operation. However, UCL1V221MNL1GS lacks AEC-Q200 automotive qualification, limiting its use to non-automotive or general purpose applications where automotive certification is not required.

Q: Is EMVY350ARA221MHA0G suitable for high-ripple-current applications?

A: No. EMVY350ARA221MHA0G has reduced ripple current specifications (225 mA @ 120 Hz, 450 mA @ 100 kHz) compared to the original AFK227M35F24B-F (450 mA @ 120 Hz, 600 mA @ 100 kHz). This part also exhibits higher ESR (300 mOhm). EMVY350ARA221MHA0G is classified as a similar substitute for applications with lower ripple current demands and is designated for general purpose use without automotive qualification.

Q: What is the significance of the land size difference between substitute parts?

A: The original AFK227M35F24B-F specifies 0.327" L x 0.394" W (8.30mm x 10.00mm) land size. Most substitute parts use 0.327" L x 0.327" W (8.30mm x 8.30mm). This difference reflects standard PCB pad layout variations for radial can SMD packages. The smaller land size is within acceptable manufacturing tolerances and does not affect electrical performance or mechanical mounting. PCB designs using the original land size can accommodate the substitute parts without modification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (EEE-FK1V221AP, EEE-FK1V221P, EMZA350ARA221MHA0G, UCL1V221MNL1GS, and EMVY350ARA221MHA0G) are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental compliance profile of the original AFK227M35F24B-F.

Q: Which substitute offers the best inventory availability?

A: EEE-FK1V221P (Panasonic) offers the highest inventory with 270,300 pcs in stock, followed by EMZA350ARA221MHA0G (Chemi-Con) with 178,300 pcs. Both parts are active products with AEC-Q200 qualification suitable for automotive applications.