AFK158M35P44B-F Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The AFK158M35P44B-F is a 1500 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a surface-mount radial can package. This capacitor is designed for automotive and industrial applications requiring high-capacity energy storage with low equivalent series resistance (ESR) and extended operational lifetime.

The AFK158M35P44B-F is currently discontinued at DiGi Electronics. Substitute components are available from Panasonic Electronic Components that maintain electrical equivalence and mechanical compatibility with the original specification.

Key Parameters

Parameter	Value
Capacitance	1500 µF
Voltage Rating	35 V
Tolerance	±20%
ESR @ 100 kHz	35 mOhms
Lifetime @ 105°C	5000 Hours
Operating Temperature Range	-55°C to 105°C
Case Size (Diameter)	16.00 mm (0.630")
Case Height (Max)	17.00 mm (0.669")
Ripple Current @ 120 Hz	1.35 A
Ripple Current @ 100 kHz	1.8 A
AEC-Q200 Rated	Yes
RoHS3 Compliance	Compliant

Substitute Part Grouping Explanation

Direct substitution of the AFK158M35P44B-F requires strict electrical and mechanical equivalence across the following parameters:

Electrical Parameters:

Capacitance: 1500 µF
Voltage Rating: 35 V
Tolerance: ±20%
ESR: 35 mOhms (nominal)
Lifetime: 5000 Hours @ 105°C
Operating Temperature: -55°C to 105°C
Ripple Current Capability: ≥1.35 A @ 120 Hz and ≥1.8 A @ 100 kHz

Mechanical Parameters:

Package Type: Radial, Can - SMD
Case Diameter: 16.00 mm
Case Height: 17.00 mm
Mounting Type: Surface Mount

Panasonic Electronic Components' EEE-FK1V152AM and EEV-FK1V152M satisfy all electrical and mechanical criteria for direct substitution. Both parts maintain identical capacitance, voltage rating, tolerance, operating temperature range, and physical dimensions. Both are AEC-Q200 rated and RoHS3 compliant.

Parameter Comparison

Parameter	AFK158M35P44B-F (CDE)	EEE-FK1V152AM (Panasonic)	EEV-FK1V152M (Panasonic)
Capacitance	1500 µF	1500 µF	1500 µF
Voltage Rating	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%
ESR @ 100 kHz	35 mOhms	35 mOhms	35 mOhms
Lifetime @ 105°C	5000 Hours	5000 Hours	5000 Hours
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Case Diameter	16.00 mm	16.00 mm	16.00 mm
Case Height (Max)	17.00 mm	17.00 mm	17.00 mm
Ripple Current @ 120 Hz	1.35 A	1.35 A	1.35 A
Ripple Current @ 100 kHz	1.8 A	1.8 A	1.69 A
Mounting Type	Surface Mount	Surface Mount	Surface Mount
AEC-Q200 Rated	Yes	Yes	Yes
RoHS3 Compliance	Compliant	Compliant	Compliant
Product Status	Discontinued	Active	Active

Engineering Selection Recommendations

EEE-FK1V152AM (Panasonic): This part is the preferred substitute for new designs. It is in active production status with established supply chain availability (6724 units in stock). Full AEC-Q200 certification and RoHS3 compliance match the original specification. The Tape & Reel packaging provides standard procurement compatibility for high-volume manufacturing.

EEV-FK1V152M (Panasonic): This part serves as an alternative substitute and is also in active production. It carries identical electrical specifications and certifications. The ripple current rating at 100 kHz is 1.69 A versus the original 1.8 A; this difference does not affect suitability where the design margin accommodates 94% of the specified ripple current rating. Supplied in Cut Tape & Digi-Reel® format with higher available inventory (9634 units).

Both Panasonic alternatives are suitable for direct PCB redesign without trace modification, as mechanical footprints match the original AFK158M35P44B-F.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1V152AM and EEV-FK1V152M be used interchangeably in the same circuit?

A: Yes. Both parts meet identical electrical specifications and physical dimensions. The selection between them depends on packaging format preference and inventory availability. EEE-FK1V152AM uses Tape & Reel packaging; EEV-FK1V152M uses Cut Tape & Digi-Reel® packaging.

Q: What is the difference in ripple current between the AFK158M35P44B-F and EEV-FK1V152M at 100 kHz?

A: The AFK158M35P44B-F specifies 1.8 A ripple current at 100 kHz, while the EEV-FK1V152M specifies 1.69 A. Both operate within the automotive-grade AEC-Q200 standard. Applications with precise ripple current requirements near design limits should verify circuit margin before selection.

Q: Are the mounting pads identical between the original and substitute parts?

A: The AFK158M35P44B-F specifies a surface mount land size of 17.00 mm × 19.00 mm. Both Panasonic substitutes specify 17.00 mm × 17.00 mm land size. PCB redesign is required if the original pad pattern is retained; however, the smaller pad footprint of the Panasonic parts is compatible with the original land area.

Q: Are both Panasonic parts suitable for automotive applications?

A: Yes. Both EEE-FK1V152AM and EEV-FK1V152M carry AEC-Q200 qualification and are rated for automotive use, matching the intended application of the original AFK158M35P44B-F.

Q: What is the moisture sensitivity level for these capacitors?

A: All three parts (original and both substitutes) are classified at MSL 1 (Unlimited moisture sensitivity level), indicating no moisture sensitivity constraints during storage or handling.

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