AFK477M35H32B-F Equivalent & Substitute Parts

Part Overview

The AFK477M35H32B-F is a 470 µF, 35 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 functionally equivalent alternatives from active manufacturers that maintain the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	35 V
Tolerance	±20%
ESR @ 100 kHz	60 mOhms
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-55°C to 105°C
Ripple Current @ 120 Hz	825 mA
Ripple Current @ 100 kHz	1.1 A
Package Type	Radial, Can - SMD
Physical Diameter	0.492" (12.50 mm)
Physical Height	0.551" (14.00 mm)
Mounting Type	Surface Mount
Polarization	Polar
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AFK477M35H32B-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Capacitance: 470 µF (exact match)
Voltage Rating: 35 V (exact match)
Tolerance: ±20% (exact match)
Lifetime: 5000 Hrs @ 105°C (exact match)
Operating Temperature: -55°C to 105°C (exact match)
Polarization: Polar (exact match)

Mechanical Equivalence Requirements:

Package Type: Radial, Can - SMD (exact match)
Physical Diameter: 0.492" (12.50 mm) (exact match)
Physical Height: 0.551" (14.00 mm) (exact match)
Mounting Type: Surface Mount (exact match)

Compliance Requirements:

RoHS3 Compliant (exact match)
MSL Rating: 1 (Unlimited) (exact match)

Substitute parts are grouped into two categories: Direct Substitutes maintain all electrical and mechanical parameters within specification, while Similar Substitutes maintain core electrical parameters but exhibit variations in impedance, ripple current ratings, or surface mount land dimensions that require circuit-level validation.

Parameter Comparison

Parameter	AFK477M35H32B-F (Main)	EEE-FK1V471AQ	EEV-FK1V471Q	EMVY350ARA471MKE0S	MAL215099012E3
Manufacturer	Cornell Dubilier Electronics	Panasonic	Panasonic	Chemi-Con	Vishay Beyschlag
Capacitance	470 µF	470 µF	470 µF	470 µF	470 µF
Voltage Rating	35 V	35 V	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	5000 Hrs	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	-55°C to 105°C
Polarization	Polar	Polar	Polar	Polar	Polar
Physical Diameter	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Physical Height	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.531" (13.50 mm)	0.551" (14.00 mm)
Package Type	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ESR @ 100 kHz	60 mOhms	60 mOhms	60 mOhms	70 mOhms	77 mOhms
Ripple Current @ 120 Hz	825 mA	825 mA	618.8 mA	410 mA	Not Specified
Ripple Current @ 100 kHz	1.1 A	1.1 A	1.0 A	820 mA	905 mA
Product Status	Discontinued	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Substitutes (Preferred):

The EEE-FK1V471AQ and EEV-FK1V471Q from Panasonic Electronic Components are direct electrical and mechanical equivalents to the AFK477M35H32B-F. Both parts maintain identical capacitance, voltage rating, tolerance, lifetime rating, operating temperature range, and physical dimensions. Both are AEC-Q200 rated for automotive applications and carry active product status. The EEE-FK1V471AQ is supplied in Tape & Reel packaging, while the EEV-FK1V471Q is supplied in Cut Tape & Digi-Reel format. Selection between these two depends on procurement and assembly requirements.

Similar Substitutes (Conditional):

The EMVY350ARA471MKE0S from Chemi-Con maintains all core electrical parameters but exhibits a 0.020" (0.50 mm) reduction in physical height (0.531" versus 0.551") and increased impedance (70 mOhms versus 60 mOhms). This part is suitable for applications where vertical clearance is constrained, provided circuit design accommodates the higher impedance.

The MAL215099012E3 from Vishay Beyschlag maintains electrical equivalence with increased impedance (77 mOhms versus 60 mOhms) and reduced ripple current capability at 100 kHz (905 mA versus 1.1 A). This part carries AEC-Q200 automotive rating and active product status. Selection requires confirmation that circuit ripple current demands do not exceed 905 mA at 100 kHz.

All substitute parts are ROHS3 compliant with MSL Rating 1 (Unlimited) and are suitable for automotive, bypass, and decoupling applications.

Frequently Asked Questions (FAQ)

Q: Can the EEE-FK1V471AQ directly replace the AFK477M35H32B-F without circuit modification?

A: Yes. The EEE-FK1V471AQ maintains identical electrical specifications (470 µF, 35 V, ±20%, 5000 Hrs @ 105°C, 60 mOhms ESR) and physical dimensions (0.492" diameter, 0.551" height). No circuit modification is required.

Q: What is the difference between the EEE-FK1V471AQ and EEV-FK1V471Q?

A: Both parts are electrically equivalent with identical capacitance, voltage, tolerance, and lifetime ratings. The primary difference is packaging format: EEE-FK1V471AQ is supplied in Tape & Reel, while EEV-FK1V471Q is supplied in Cut Tape & Digi-Reel. The EEV-FK1V471Q exhibits slightly lower ripple current ratings (618.8 mA @ 120 Hz and 1.0 A @ 100 kHz versus 825 mA and 1.1 A respectively).

Q: Why does the EMVY350ARA471MKE0S have a different height?

A: The EMVY350ARA471MKE0S is 0.020" (0.50 mm) shorter (0.531" versus 0.551") due to internal design differences in the Chemi-Con Alchip™-MVY series. This dimension variation may be advantageous in space-constrained applications but requires verification that the reduced height does not conflict with circuit board layout or component clearance requirements.

Q: Is the MAL215099012E3 suitable for high-ripple-current applications?

A: The MAL215099012E3 supports 905 mA ripple current at 100 kHz, which is lower than the original AFK477M35H32B-F specification of 1.1 A. Applications requiring ripple current above 905 mA at 100 kHz should use the Panasonic EEE-FK1V471AQ or EEV-FK1V471Q instead.

Q: Are all substitute parts AEC-Q200 rated?

A: The EEE-FK1V471AQ, EEV-FK1V471Q, and MAL215099012E3 carry AEC-Q200 automotive qualification. The EMVY350ARA471MKE0S does not list AEC-Q200 rating and is designated for general-purpose applications. For automotive applications requiring AEC-Q200 compliance, use the Panasonic or Vishay parts.

Q: What is the impact of increased impedance in substitute parts?

A: The EMVY350ARA471MKE0S (70 mOhms) and MAL215099012E3 (77 mOhms) exhibit higher impedance than the original part (60 mOhms). Higher impedance increases voltage ripple and heat dissipation in high-frequency switching applications. Circuit analysis is required to confirm that increased impedance does not degrade performance in bypass or decoupling functions.

Q: Can I mix different substitute parts in the same circuit board?

A: All substitute parts maintain the same physical footprint and electrical ratings, allowing interchangeability within a single design. However, mixing parts with different impedance values (60 mOhms, 70 mOhms, 77 mOhms) in parallel configurations may result in unequal current distribution. Consistent part selection across a design is recommended.

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