AFK157M2AP44B-F Equivalent & Substitute Parts

Part Overview

The AFK157M2AP44B-F is a 150 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 equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	100 V
Tolerance	±20%
ESR @ 100 kHz	170 mOhm
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C to 105°C
Package Type	Radial, Can - SMD
Case Diameter	0.630" (16.00 mm)
Case Height	0.669" (17.00 mm)
Polarization	Polar
AEC-Q200 Rated	Yes
RoHS3 Compliant	Yes

Substitute Part Grouping Explanation

Substitution of the AFK157M2AP44B-F is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

Capacitance: 150 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
ESR: 170 mOhm @ 100 kHz (exact match required)
Lifetime: 5000 Hrs @ 105°C (exact match required)
Operating Temperature: -55°C to 105°C (exact match required)

Critical Mechanical Parameters:

Package Type: Radial, Can - SMD (exact match required)
Case Diameter: 0.630" (16.00 mm) (exact match required)
Case Height: 0.669" (17.00 mm) (exact match required)
Polarization: Polar (exact match required)

Compliance & Certification:

AEC-Q200 Rating (automotive qualification required)
RoHS3 Compliance (required)

The substitute parts identified below meet all critical electrical and mechanical parameters, ensuring direct interchangeability in the original application without circuit redesign or PCB modification.

Parameter Comparison

Parameter	AFK157M2AP44B-F (CDE)	EEE-FK2A151AM (Panasonic)	EEV-FK2A151M (Panasonic)
Manufacturer	Cornell Dubilier Electronics	Panasonic Electronic Components	Panasonic Electronic Components
Capacitance	150 µF	150 µF	150 µF
Voltage Rating	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%
ESR @ 100 kHz	170 mOhm	170 mOhm	170 mOhm
Impedance	170 mOhms	170 mOhms	170 mOhms
Lifetime @ 105°C	5000 Hrs	5000 Hrs	5000 Hrs
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Case Diameter	0.630" (16.00 mm)	0.630" (16.00 mm)	0.630" (16.00 mm)
Case Height	0.669" (17.00 mm)	0.669" (17.00 mm)	0.669" (17.00 mm)
Package Type	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
Polarization	Polar	Polar	Polar
AEC-Q200 Rated	Yes	Yes	Yes
RoHS3 Compliant	Yes	Yes	Yes
Product Status	Discontinued	Active	Active
Packaging Format	Standard	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

EEE-FK2A151AM (Panasonic) and EEV-FK2A151M (Panasonic) are direct electrical and mechanical equivalents to the AFK157M2AP44B-F. Both substitute parts are manufactured by Panasonic Electronic Components and maintain identical electrical specifications, physical dimensions, and compliance certifications.

Selection Basis:

Both substitute parts satisfy all mandatory substitution criteria:

Identical capacitance, voltage rating, tolerance, and ESR specifications
Matching physical dimensions (16.00 mm diameter, 17.00 mm height)
AEC-Q200 automotive qualification
RoHS3 compliance
5000-hour lifetime rating at 105°C
Active product status with confirmed inventory availability

Packaging Differentiation:

The choice between EEE-FK2A151AM and EEV-FK2A151M depends on procurement packaging requirements:

EEE-FK2A151AM: Supplied in Tape & Reel (TR) format, suitable for high-volume automated assembly
EEV-FK2A151M: Supplied in Cut Tape (CT) & Digi-Reel® format, suitable for mixed-volume or manual assembly operations

Both packaging formats are compatible with standard surface mount assembly equipment and processes. No circuit modification or PCB redesign is required when substituting either part for the discontinued AFK157M2AP44B-F.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK2A151AM or EEV-FK2A151M be used as direct replacements for AFK157M2AP44B-F without PCB modification?

A: Yes. Both Panasonic parts are direct substitutes. They match all electrical parameters (150 µF, 100 V, ±20%, 170 mOhm ESR, 5000 Hrs @ 105°C) and physical dimensions (16.00 mm diameter, 17.00 mm height). No PCB layout changes are required.

Q: What is the difference between EEE-FK2A151AM and EEV-FK2A151M?

A: Both parts are electrically and mechanically identical. The difference is packaging format: EEE-FK2A151AM is supplied in Tape & Reel (TR), while EEV-FK2A151M is supplied in Cut Tape (CT) & Digi-Reel®. Select based on your assembly process requirements.

Q: Are both substitute parts AEC-Q200 qualified?

A: Yes. Both EEE-FK2A151AM and EEV-FK2A151M carry AEC-Q200 automotive qualification, matching the original AFK157M2AP44B-F specification.

Q: Do the substitute parts have the same ESR specification?

A: Yes. Both Panasonic parts specify 170 mOhm impedance at 100 kHz, identical to the original part's 170 mOhm ESR @ 100 kHz.

Q: Are there any differences in surface mount land size between the original and substitute parts?

A: The original AFK157M2AP44B-F specifies a surface mount land size of 0.669" L x 0.748" W (17.00 mm x 19.00 mm). Both Panasonic substitutes specify 0.669" L x 0.669" W (17.00 mm x 17.00 mm). This difference in land pattern width may require PCB footprint verification for your specific application.

Q: What is the moisture sensitivity level (MSL) for the substitute parts?

A: Both EEE-FK2A151AM and EEV-FK2A151M have MSL 1 (Unlimited), matching the original part's moisture sensitivity classification.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both Panasonic parts are RoHS3 compliant, consistent with the original AFK157M2AP44B-F specification.

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