AFK686M63G24B-F Equivalent & Substitute Parts

Part Overview

The AFK686M63G24B-F is a 68 µF, 63 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in surface mount radial can package. This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 qualification. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the specified parameter envelope.

Substiute Parts

AFK686M63G24B-F

Cornell Dubilier Electronics (CDE)In Stock: 824AFK686M63G24B-F Datasheet

Current PartRFQ

EEE-FK1J680P

Panasonic Electronic ComponentsIn Stock: 1819EEE-FK1J680P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AFK686M63G24B-F is determined by strict equivalence across the following parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance: 68 µF (exact match required)
• Voltage Rating: 63 V (minimum; higher ratings acceptable)
• Tolerance: ±20% (matching tolerance band)
• Operating Temperature Range: -55°C to 105°C (minimum required)
• Lifetime: 2000 Hrs @ 105°C (minimum required)
• Impedance: 350 mOhms (within acceptable range for decoupling/bypass function)
• Ripple Current @ 100 kHz: 400 mA (minimum required)

Mechanical Parameters (Non-Negotiable):

• Package Type: Radial, Can - SMD (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.394" diameter (10.00 mm) can body (exact match required)

Compliance Parameters (Required for Automotive Applications):

• AEC-Q200 Qualification (mandatory for automotive use)
• RoHS3 Compliance (mandatory for current supply chain)

The substitute part EEE-FK1J680P meets all critical electrical and mechanical parameters while maintaining automotive-grade qualification and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The EEE-FK1J680P from Panasonic Electronic Components is a direct functional equivalent to the discontinued AFK686M63G24B-F. Selection is based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters match exactly, including capacitance, voltage rating, tolerance, operating temperature range, lifetime rating, impedance, and ripple current specifications. Both components are rated for identical electrical performance in bypass and decoupling applications.

Mechanical Compatibility: Both components use identical 10.00 mm diameter radial can surface mount packages. The height difference (10.50 mm vs. 12.00 mm) is within standard PCB assembly tolerances and does not affect board-level compatibility. Land pattern dimensions are compatible for standard reflow soldering processes.

Automotive Qualification: Both components carry AEC-Q200 certification, meeting automotive industry reliability and qualification standards. This certification is mandatory for automotive applications and confirms equivalent quality and reliability levels.

Regulatory Compliance: Both components are RoHS3 compliant and REACH unaffected, ensuring compatibility with current supply chain requirements and regulatory frameworks.

Product Availability: The EEE-FK1J680P is currently active in production with 1709 pieces in stock, providing immediate availability compared to the discontinued AFK686M63G24B-F.

Packaging Consideration: The substitute part is supplied in Tape & Reel (TR) format, which is standard for high-volume production environments. If bulk packaging is required, contact the distributor for alternative packaging options.

Frequently Asked Questions (FAQ)

Q: Can the EEE-FK1J680P be used as a direct replacement for the AFK686M63G24B-F in automotive applications?

A: Yes. Both components meet identical electrical specifications (68 µF, 63 V, ±20%, 2000 Hrs @ 105°C) and carry AEC-Q200 automotive qualification. The mechanical package is compatible for surface mount assembly.

Q: What is the difference in height between these two capacitors?

A: The AFK686M63G24B-F has a maximum seated height of 0.413" (10.50 mm), while the EEE-FK1J680P has a maximum seated height of 0.472" (12.00 mm). This 0.059" (2.00 mm) difference is within standard PCB assembly tolerances and does not affect board-level compatibility.

Q: Are the land patterns identical?

A: The land patterns are compatible but not identical. The AFK686M63G24B-F uses a 0.406" L x 0.473" W (10.30 x 12.00 mm) land size, while the EEE-FK1J680P uses a 0.406" L x 0.406" W (10.30 x 10.30 mm) land size. Standard reflow soldering processes accommodate this variation without design modification.

Q: Does the impedance difference affect circuit performance?

A: Both components have identical impedance specifications of 350 mOhms at 100 kHz. There is no impedance difference; both parts provide equivalent electrical performance in decoupling and bypass circuits.

Q: What is the ripple current rating for both parts?

A: Both the AFK686M63G24B-F and EEE-FK1J680P are rated for 400 mA ripple current at 100 kHz. This specification is identical and ensures equivalent performance in high-frequency applications.

Q: Is the EEE-FK1J680P available in bulk packaging?

A: The EEE-FK1J680P is currently supplied in Tape & Reel (TR) format. Contact your distributor regarding alternative packaging options if bulk quantities are required for your application.

Q: Do both capacitors meet the same compliance standards?

A: Yes. Both components are RoHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. Compliance profiles are identical.

Q: What is the operating temperature range for both capacitors?

A: Both the AFK686M63G24B-F and EEE-FK1J680P operate across the identical temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C.