AHA226M2AF24B-F Equivalent & Substitute Parts

Part Overview

The AHA226M2AF24B-F is a 22 µF, 100 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 that maintain electrical and mechanical compatibility within the specified parameter tolerances.

Key Parameters

Parameter	Value	Unit	Substitution Criticality
Capacitance	22	µF	Critical
Voltage - Rated	100	V	Critical
Tolerance	±20%	%	Critical
Operating Temperature Range	-55 to 105	°C	Critical
Lifetime @ Temperature	2000	Hrs @ 105°C	Critical
Package Type	Radial, Can - SMD	-	Critical
Mounting Type	Surface Mount	-	Critical
Size / Dimension	0.315" Dia (8.00mm)	-	Critical
Height - Seated (Max)	0.402 to 0.413	inches (mm)	Critical
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)	-	Critical
Polarization	Polar	-	Critical
AEC-Q200 Rating	Yes	-	Critical
RoHS3 Compliance	Compliant	-	Critical
Moisture Sensitivity Level	1 (Unlimited)	-	Important

Substitute Part Grouping Explanation

Substitution of the AHA226M2AF24B-F is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

Capacitance value of 22 µF
Rated voltage of 100 V
Tolerance of ±20%
Lifetime specification of 2000 Hrs @ 105°C
Operating temperature range of -55°C to 105°C

Critical Mechanical Parameters:

Surface mount radial can package type
Diameter of 0.315" (8.00mm)
Height within 0.402" to 0.413" (10.20mm to 10.50mm)
Surface mount land size of 0.327" L x 0.327" W (8.30mm x 8.30mm)

Critical Compliance Parameters:

AEC-Q200 automotive qualification
RoHS3 compliance
Polar electrolytic construction

The substitute part EEE-FK2A220P meets all critical parameters and is therefore a direct functional equivalent.

Parameter Comparison

Parameter	AHA226M2AF24B-F (CDE)	EEE-FK2A220P (Panasonic)	Match Status
Capacitance	22 µF	22 µF	Equivalent
Voltage - Rated	100 V	100 V	Equivalent
Tolerance	±20%	±20%	Equivalent
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Equivalent
Lifetime @ Temp.	2000 Hrs @ 105°C	2000 Hrs @ 105°C	Equivalent
Polarization	Polar	Polar	Equivalent
AEC-Q200 Rating	Yes	Yes	Equivalent
Size / Dimension	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)	Equivalent
Height - Seated (Max)	0.402" (10.20mm)	0.413" (10.50mm)	Compatible
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)	0.327" L x 0.327" W (8.30mm x 8.30mm)	Equivalent
Package / Case	Radial, Can - SMD	Radial, Can - SMD	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS3 Compliance	Compliant	Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Discontinued at DiGi Electronics	Active	Substitute Available

Engineering Selection Recommendations

The EEE-FK2A220P from Panasonic Electronic Components is a direct substitute for the discontinued AHA226M2AF24B-F. Selection is based on the following factors:

Compliance & Certification: Both parts carry AEC-Q200 automotive qualification and RoHS3 compliance, meeting the same regulatory and quality standards required for automotive applications.

Electrical Equivalence: Capacitance, voltage rating, tolerance, operating temperature range, and lifetime specifications are identical between the two parts, ensuring functional interchangeability in bypass and decoupling circuits.

Mechanical Compatibility: Both parts use identical surface mount land sizes (0.327" L x 0.327" W) and the same 8.00mm diameter can. The height difference of 0.011" (0.30mm) between the two parts falls within typical PCB assembly tolerances and does not affect board-level compatibility.

Availability: The EEE-FK2A220P is currently in active production with 8964 units in stock, providing immediate availability compared to the discontinued AHA226M2AF24B-F.

Frequently Asked Questions (FAQ)

Q: Can the EEE-FK2A220P be used as a direct replacement for the AHA226M2AF24B-F on existing PCBs?

A: Yes. Both parts share identical electrical specifications (22 µF, 100 V, ±20% tolerance), identical surface mount land sizes, and compatible physical dimensions. The 0.011" height difference is within standard PCB assembly tolerances.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the AHA226M2AF24B-F and EEE-FK2A220P carry AEC-Q200 qualification, meeting automotive reliability and quality standards.

Q: What is the difference in ESR between the two parts?

A: The AHA226M2AF24B-F specifies 13.6 Ohm ESR @ 120 Hz. The EEE-FK2A220P specifies 1.3 Ohms impedance. The EEE-FK2A220P exhibits lower impedance, which may provide improved performance in high-frequency decoupling applications.

Q: Do both parts have the same moisture sensitivity rating?

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

Q: What is the packaging difference between the two parts?

A: The AHA226M2AF24B-F is supplied in bulk packaging. The EEE-FK2A220P is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly processes.

Q: Are both parts RoHS3 compliant?

A: Yes. Both parts are RoHS3 compliant and REACH unaffected, meeting current environmental regulations.

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