AFK477M80R44B-F Equivalent & Substitute Parts

Part Overview

The AFK477M80R44B-F is a 470 µF, 80 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in surface mount radial can configuration. This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 automotive qualification. The part is currently listed as obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

AFK477M80R44B-F

Cornell Dubilier Electronics (CDE)In Stock: 1001AFK477M80R44B-F Datasheet

Current PartRFQ

AFK477M80R44T-F

Cornell Dubilier Electronics (CDE)In Stock: 1193AFK477M80R44T-F Datasheet

DirectRFQ

EEE-FK1K471AM

Panasonic Electronic ComponentsIn Stock: 6126EEE-FK1K471AM Datasheet

DirectRFQ

EEV-FK1K471M

Panasonic Electronic ComponentsIn Stock: 8202EEV-FK1K471M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFK477M80R44B-F is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 470 µF (exact match required)
• Voltage Rating: 80 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature Range: -55°C to 105°C (exact match required)
• Lifetime: 5000 Hrs @ 105°C (exact match required)
• Ripple Current @ 100 kHz: 917 mA (exact match required)
• Polarization: Polar (exact match required)

Mechanical Equivalence Criteria:

• Case Diameter: 18.00 mm (exact match required)
• Height (Seated Max): 17.00 mm (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Package Type: Radial, Can - SMD (exact match required)

Compliance Criteria:

• AEC-Q200 Automotive Qualification (required)
• RoHS3 Compliance (required)

All identified substitute parts meet these criteria. Variations in packaging format (Tape & Reel vs. bulk) and minor differences in land size do not affect electrical or mechanical substitutability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AFK477M80R44T-F

The AFK477M80R44T-F is the direct equivalent from Cornell Dubilier Electronics, maintaining identical electrical specifications and mechanical dimensions. This part is currently in active production status, ensuring long-term availability. Selection of this part eliminates any cross-manufacturer compatibility considerations and preserves the original design intent. The only difference is packaging format (Tape & Reel vs. bulk), which does not affect component performance or board-level compatibility.

Secondary Substitutes: EEE-FK1K471AM and EEV-FK1K471M

Both Panasonic Electronic Components parts (EEE-FK1K471AM and EEV-FK1K471M) provide full electrical and mechanical equivalence. These components are in active production and carry identical AEC-Q200 automotive qualification and RoHS3 compliance. The impedance specification of 153 mOhms for Panasonic parts is within acceptable tolerance relative to the 150 mOhm specification of the main part. Both Panasonic alternatives are supplied in Tape & Reel packaging format.

Selection Basis:

All substitute parts satisfy the mandatory criteria: identical capacitance, voltage rating, tolerance, operating temperature range, lifetime rating, ripple current capability, and physical dimensions. All parts maintain AEC-Q200 automotive qualification and RoHS3 compliance. Product status transition from obsolete to active ensures continued component availability for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can AFK477M80R44T-F be used as a direct replacement for AFK477M80R44B-F?

A: Yes. The AFK477M80R44T-F is electrically and mechanically identical to the AFK477M80R44B-F. The only difference is packaging format (Tape & Reel vs. bulk). Both parts have identical electrical specifications, physical dimensions, and automotive qualifications.

Q: What is the difference between the Cornell Dubilier and Panasonic substitute parts?

A: All three substitute parts (AFK477M80R44T-F, EEE-FK1K471AM, and EEV-FK1K471M) meet identical electrical and mechanical requirements. The Panasonic parts specify impedance at 153 mOhms compared to 150 mOhms for Cornell Dubilier parts. This 3 mOhm difference is within normal manufacturing tolerance and does not affect circuit performance. Panasonic parts are supplied in Tape & Reel packaging.

Q: Are the Panasonic parts (EEE-FK1K471AM and EEV-FK1K471M) interchangeable with each other?

A: Yes. Both Panasonic parts are electrically and mechanically equivalent. Both carry identical electrical specifications, physical dimensions, and automotive qualifications. Selection between these two parts can be based on inventory availability or procurement preference.

Q: Will these substitute parts work in automotive applications?

A: Yes. All substitute parts carry AEC-Q200 automotive qualification, identical to the original part. All parts are rated for the full automotive temperature range (-55°C to 105°C) and meet automotive reliability requirements.

Q: What is the significance of the land size difference between Cornell Dubilier and Panasonic parts?

A: The Cornell Dubilier AFK477M80R44B-F specifies surface mount land size as 19.00 mm × 21.00 mm. The Panasonic parts specify 19.00 mm × 19.00 mm. Both land sizes are compatible with standard surface mount assembly processes. The Panasonic square land pattern is a common industry standard and does not affect component substitutability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts (AFK477M80R44T-F, EEE-FK1K471AM, and EEV-FK1K471M) are RoHS3 compliant, matching the compliance status of the original AFK477M80R44B-F.

Q: What is the inventory status of these substitute parts?

A: AFK477M80R44T-F: 1102 pieces in stock. EEE-FK1K471AM: 6031 pieces in stock. EEV-FK1K471M: 8134 pieces in stock. All substitute parts are in active production and available for immediate procurement.