AFK338M16P44B-F Equivalent & Substitute Parts

Part Overview

The AFK338M16P44B-F is a 3300 µF, 16 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 compliance and operates across a temperature range of -55°C to 105°C with a 5000-hour lifetime at 105°C. The part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Capacitance	3300 µF
Voltage Rating	16 V
Tolerance	±20%
ESR @ 100 kHz	35 mOhm
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C to 105°C
Ripple Current @ 120 Hz	1.35 A
Ripple Current @ 100 kHz	1.8 A
Case Diameter	16.00 mm (0.630")
Height (Seated Max)	17.00 mm (0.669")
Mounting Type	Surface Mount
Package Type	Radial, Can - SMD
Polarization	Polar
AEC-Q200 Rated	Yes
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AFK338M16P44B-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Capacitance: 3300 µF (exact match)
Voltage Rating: 16 V (exact match)
Tolerance: ±20% (exact match)
Impedance/ESR: 35 mOhm nominal
Ripple Current Capability: Minimum 1.8 A @ 100 kHz
Lifetime: 5000 Hrs @ 105°C minimum

Mechanical Equivalence Requirements:

Case Diameter: 16.00 mm
Height: 17.00 mm maximum
Surface Mount Land Size: Compatible with 17.00 mm × 17.00 mm or 17.00 mm × 19.00 mm footprints
Package Type: Radial, Can - SMD

Compliance & Certification Requirements:

AEC-Q200 rated (automotive qualification)
RoHS3 compliant
MSL 1 rating

Substitute parts are classified as Direct Equivalents when all electrical and mechanical parameters align within specified tolerances, and Similar Alternatives when minor parameter variations exist that do not compromise circuit performance within the application envelope.

Parameter Comparison

Parameter	AFK338M16P44B-F (Main)	EEE-FK1C332AM	EEV-FK1C332M	EMVY160GRA332MLN0S
Manufacturer	Cornell Dubilier Electronics	Panasonic	Panasonic	Chemi-Con
Capacitance	3300 µF	3300 µF	3300 µF	3300 µF
Voltage Rating	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%
ESR @ 100 kHz	35 mOhm	35 mOhm	35 mOhm	38 mOhm
Lifetime @ 105°C	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Ripple Current @ 120 Hz	1.35 A	1.35 A	1.35 A	1.2225 A
Ripple Current @ 100 kHz	1.8 A	1.8 A	1.69 A	1.63 A
Case Diameter	16.00 mm	16.00 mm	16.00 mm	16.00 mm
Height (Seated Max)	17.00 mm	17.00 mm	17.00 mm	21.50 mm
Surface Mount Land Size	17.00 mm × 19.00 mm	17.00 mm × 17.00 mm	17.00 mm × 17.00 mm	17.00 mm × 17.00 mm
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Type	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
Polarization	Polar	Polar	Polar	Polar
Product Status	Discontinued	Active	Active	Active
AEC-Q200 Rated	Yes	Yes	Yes	No
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

EEE-FK1C332AM (Panasonic) and EEV-FK1C332M (Panasonic) are direct electrical and mechanical equivalents to the AFK338M16P44B-F. Both parts maintain identical capacitance, voltage rating, tolerance, impedance, lifetime rating, and operating temperature range. Both are AEC-Q200 rated for automotive applications and RoHS3 compliant. EEE-FK1C332AM is supplied in Tape & Reel packaging with 789 units in stock, while EEV-FK1C332M is also supplied in Tape & Reel with 2212 units in stock. The primary distinction between these Panasonic alternatives is the ripple current specification at 100 kHz: EEE-FK1C332AM matches the original 1.8 A specification, while EEV-FK1C332M is rated at 1.69 A. Both values remain within acceptable operating margins for the specified application envelope.

Similar Alternative (Secondary Consideration):

EMVY160GRA332MLN0S (Chemi-Con) provides functional equivalence with minor parameter deviations. This part maintains identical capacitance, voltage, tolerance, lifetime, and temperature range specifications. However, three parameter differences exist: ESR is specified at 38 mOhm (versus 35 mOhm), ripple current at 100 kHz is 1.63 A (versus 1.8 A), and seated height is 21.50 mm (versus 17.00 mm). The height variance may create clearance constraints in space-limited PCB layouts. Additionally, this part does not carry AEC-Q200 automotive qualification, limiting its suitability for applications requiring automotive-grade component certification. The Chemi-Con alternative is suitable for general-purpose applications where automotive qualification is not mandated.

Selection Criteria:

For automotive applications requiring AEC-Q200 compliance, select either EEE-FK1C332AM or EEV-FK1C332M. For general-purpose applications without automotive qualification requirements and where PCB height clearance permits 21.50 mm, EMVY160GRA332MLN0S is acceptable. Verify PCB footprint compatibility with the surface mount land size specifications before final component selection.

Frequently Asked Questions (FAQ)

Q: Can EEE-FK1C332AM and EEV-FK1C332M be used interchangeably with the AFK338M16P44B-F?

A: Both Panasonic parts are direct electrical equivalents. EEE-FK1C332AM matches the original ripple current specification at 100 kHz (1.8 A), while EEV-FK1C332M is rated at 1.69 A. Both maintain the 35 mOhm impedance specification and are suitable for direct substitution in automotive applications. Verify circuit ripple current requirements do not exceed 1.69 A @ 100 kHz if using EEV-FK1C332M.

Q: What is the primary difference between the Panasonic FK series parts?

A: EEE-FK1C332AM and EEV-FK1C332M differ in ripple current capability at 100 kHz (1.8 A versus 1.69 A) and in their specific application designations. EEE-FK1C332AM is specified for high-temperature reflow applications, while EEV-FK1C332M is designated for general automotive use. Both are electrically and mechanically equivalent for the specified 3300 µF, 16 V rating.

Q: Why is the Chemi-Con EMVY160GRA332MLN0S listed as a similar alternative rather than a direct equivalent?

A: The Chemi-Con part differs in three parameters: ESR (38 mOhm versus 35 mOhm), ripple current at 100 kHz (1.63 A versus 1.8 A), and seated height (21.50 mm versus 17.00 mm). Additionally, it lacks AEC-Q200 automotive qualification. These differences classify it as a similar alternative suitable for general-purpose applications where automotive certification is not required and PCB layout permits the increased height.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The AFK338M16P44B-F and all listed substitute parts (EEE-FK1C332AM, EEV-FK1C332M, and EMVY160GRA332MLN0S) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the impact of the 3 mOhm ESR difference in the Chemi-Con part?

A: The Chemi-Con EMVY160GRA332MLN0S is specified at 38 mOhm ESR compared to 35 mOhm for the original and Panasonic alternatives. This 8.6% increase in impedance results in marginally higher heat dissipation under ripple current conditions. For applications with strict thermal or noise specifications, the lower ESR of the Panasonic alternatives is preferred.

Q: Can the AFK338M16P44B-F PCB footprint accommodate the Chemi-Con part?

A: The case diameter (16.00 mm) and surface mount land size (17.00 mm × 17.00 mm) are compatible. However, the Chemi-Con part has a seated height of 21.50 mm compared to 17.00 mm for the original. Verify that PCB layout clearance above the component permits the additional 4.50 mm height before substitution.

Q: Which substitute part offers the best availability?

A: EEV-FK1C332M (Panasonic) has the highest inventory with 2212 units in stock, followed by EEE-FK1C332AM (Panasonic) with 789 units, and EMVY160GRA332MLN0S (Chemi-Con) with 764 units.

Q: Are all substitute parts automotive-grade?

A: EEE-FK1C332AM and EEV-FK1C332M are both AEC-Q200 rated for automotive applications. EMVY160GRA332MLN0S does not carry AEC-Q200 certification and is designated for general-purpose applications.

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