AFK476M06C12B-F Equivalent & Substitute Parts Reference

Part Overview

The AFK476M06C12B-F is a 47 µF, 6.3 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 automotive qualification and a rated lifetime of 2000 hours at 105°C.

The AFK476M06C12B-F has been discontinued at DiGi Electronics. Equivalent substitute parts are available from active manufacturers including Panasonic Electronic Components, Chemi-Con, and Nichicon, all meeting the same electrical and mechanical specifications required for direct replacement in automotive and industrial applications.

Key Parameters

Parameter	Value	Unit
Capacitance	47	µF
Voltage - Rated	6.3	V
Tolerance	±20%	-
Lifetime @ Temperature	2000 Hrs @ 105°C	-
Operating Temperature Range	-55°C to 105°C	-
ESR @ 100 kHz	700	mOhm
Ripple Current @ 100 kHz	160	mA
Package Type	Radial, Can - SMD	-
Size / Dimension	0.197" Dia (5.00mm)	-
Height - Seated (Max)	0.240" (6.10mm)	-
Polarization	Polar	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the AFK476M06C12B-F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 47 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Physical Dimensions: 0.197" Dia (5.00mm), Height 0.240" (6.10mm) maximum (exact match required)
Lifetime: 2000 Hrs @ 105°C (exact match required)
Operating Temperature: -55°C to 105°C (exact match required)
Polarization: Polar (exact match required)

Allowable Parameter Variations:

ESR @ 100 kHz: Range 360–760 mOhms (within acceptable tolerance for equivalent function)
Ripple Current @ 100 kHz: Range 150–240 mA (within acceptable tolerance for equivalent function)
Impedance: Range 360–760 mOhms (within acceptable tolerance for equivalent function)
Ripple Current @ 120 Hz: Range 64–120 mA (within acceptable tolerance for equivalent function)
Surface Mount Land Size: Minor variations acceptable (5.30mm x 5.30mm to 5.30mm x 6.50mm)
Packaging Format: Tape & Reel (TR) acceptable alternative to standard packaging
AEC-Q200 Automotive Rating: Present in most substitutes; absence does not disqualify for general-purpose applications

All substitute parts listed meet or exceed the core electrical and mechanical requirements for direct replacement in the specified application categories.

Parameter Comparison

Parameter	AFK476M06C12B-F (CDE)	EEE-FK0J470AR (Panasonic)	EEE-FK0J470R (Panasonic)	EMZA6R3ARA470ME61G (Chemi-Con)	UCL0J470MCL1GS (Nichicon)	UUD0J470MCL1GS (Nichicon)
Capacitance	47 µF	47 µF	47 µF	47 µF	47 µF	47 µF
Voltage - Rated	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
ESR @ 100 kHz	700 mOhm	700 mOhm	700 mOhm	700 mOhm	360 mOhm	760 mOhm
Ripple Current @ 100 kHz	160 mA	160 mA	160 mA	160 mA	240 mA	150 mA
Ripple Current @ 120 Hz	120 mA	104 mA	120 mA	64 mA	120 mA	75 mA
Size / Dimension	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)
Height - Seated (Max)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.228" (5.80mm)	0.240" (6.10mm)
Surface Mount Land Size	0.209" L x 0.256" W (5.30mm x 6.50mm)	0.209" L x 0.209" W (5.30mm x 5.30mm)	0.209" L x 0.209" W (5.30mm x 5.30mm)	0.209" L x 0.209" W (5.30mm x 5.30mm)	0.209" L x 0.209" W (5.30mm x 5.30mm)	0.209" L x 0.209" W (5.30mm x 5.30mm)
Package / Case	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
Polarization	Polar	Polar	Polar	Polar	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued	Active	Active	Active	Active	Active
Inventory Availability	755 Pcs	2357 Pcs	1360 Pcs	656 Pcs	2287 Pcs	1142 Pcs

Engineering Selection Recommendations

Primary Substitutes for Automotive Applications:

The EEE-FK0J470AR (Panasonic) and EEE-FK0J470R (Panasonic) are the preferred substitutes for the discontinued AFK476M06C12B-F. Both parts carry AEC-Q200 automotive qualification, matching the original part's automotive rating. The EEE-FK0J470AR is specifically rated for high-temperature reflow applications. Both maintain identical electrical specifications including 700 mOhm ESR @ 100 kHz and 160 mA ripple current @ 100 kHz. Panasonic parts are available in higher inventory quantities (2357 and 1360 units respectively), ensuring supply continuity.

Secondary Substitute for Automotive Applications:

The UUD0J470MCL1GS (Nichicon) provides an alternative with AEC-Q200 automotive qualification. This part exhibits slightly higher ESR (760 mOhm) and lower ripple current capacity (150 mA @ 100 kHz) compared to the original specification, but remains within acceptable operating parameters for automotive bypass and decoupling circuits. REACH status is affected for this part.

General-Purpose Alternative:

The UCL0J470MCL1GS (Nichicon) is suitable for general-purpose applications where automotive qualification is not required. This part offers superior electrical performance with lower ESR (360 mOhm) and higher ripple current capacity (240 mA @ 100 kHz), making it advantageous for high-ripple-current environments. However, it lacks AEC-Q200 automotive rating and is not rated for automotive applications.

Chemi-Con Alternative:

The EMZA6R3ARA470ME61G (Chemi-Con Alchip™ MZA series) meets automotive requirements with AEC-Q200 qualification. This part exhibits lower ripple current capacity at low frequency (64 mA @ 120 Hz) but maintains full specification at high frequency (160 mA @ 100 kHz). Inventory availability is lower (656 units).

Selection Criteria:

For automotive applications requiring AEC-Q200 compliance: Select EEE-FK0J470AR, EEE-FK0J470R, UUD0J470MCL1GS, or EMZA6R3ARA470ME61G
For general-purpose applications: UCL0J470MCL1GS is acceptable
For maximum inventory availability: EEE-FK0J470AR (2357 units) or UCL0J470MCL1GS (2287 units)
For high-ripple-current environments: UCL0J470MCL1GS offers superior performance

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can the EEE-FK0J470AR directly replace the AFK476M06C12B-F without PCB layout modifications?

A: The EEE-FK0J470AR is a direct electrical and mechanical equivalent. However, the surface mount land size differs slightly: the original AFK476M06C12B-F specifies 0.209" L x 0.256" W (5.30mm x 6.50mm), while the EEE-FK0J470AR requires 0.209" L x 0.209" W (5.30mm x 5.30mm). PCB land pattern adjustment may be necessary depending on the original design tolerance. The physical can diameter (5.00mm) and maximum height (6.10mm) are identical, ensuring mechanical fit in the assembly.

Q: What is the difference between the two Panasonic substitutes, EEE-FK0J470AR and EEE-FK0J470R?

A: Both parts are electrically identical with 47 µF capacitance, 6.3 V rating, 700 mOhm ESR @ 100 kHz, and 160 mA ripple current @ 100 kHz. The primary difference is application focus: EEE-FK0J470AR is rated for high-temperature reflow processes, while EEE-FK0J470R is designated for general automotive applications. Both carry AEC-Q200 qualification and are available in Tape & Reel packaging. Selection between these two depends on manufacturing process requirements.

Q: Why does the UCL0J470MCL1GS have lower ESR (360 mOhm) than the original part (700 mOhm)?

A: The UCL0J470MCL1GS from Nichicon's UCL series exhibits superior electrical performance characteristics compared to the original AFK476M06C12B-F. Lower ESR results in reduced heat generation and improved high-frequency performance. This part is suitable for applications where lower impedance is beneficial. However, the UCL0J470MCL1GS lacks AEC-Q200 automotive qualification and is rated for general-purpose applications only.

Q: Is the UUD0J470MCL1GS suitable for automotive applications despite its REACH-affected status?

A: The UUD0J470MCL1GS carries AEC-Q200 automotive qualification and meets all electrical and mechanical specifications for automotive bypass and decoupling applications. The REACH-affected status indicates that certain substances in the component are subject to REACH regulatory requirements. This does not disqualify the part for automotive use but requires compliance verification within your supply chain and end-market regulations. Consult your compliance department for specific REACH requirements applicable to your application.

Q: What is the significance of the height difference between UCL0J470MCL1GS (0.228" / 5.80mm) and other substitutes (0.240" / 6.10mm)?

A: The UCL0J470MCL1GS has a maximum seated height of 0.228" (5.80mm), which is 0.012" (0.30mm) shorter than the original AFK476M06C12B-F and most other substitutes at 0.240" (6.10mm). This dimensional difference is within typical PCB assembly tolerances and does not affect electrical function. However, if the original design has tight height constraints or clearance requirements, this shorter profile may be advantageous or require verification against mechanical drawings.

Q: Can I use the EMZA6R3ARA470ME61G in place of the AFK476M06C12B-F for automotive applications?

A: Yes, the EMZA6R3ARA470ME61G is a direct substitute for automotive applications. It carries AEC-Q200 qualification and meets all core electrical specifications. The primary consideration is ripple current at low frequency: the EMZA6R3ARA470ME61G is rated for 64 mA @ 120 Hz compared to the original 120 mA @ 120 Hz. For applications with significant low-frequency ripple current demands, this reduced capacity should be evaluated against circuit requirements. High-frequency ripple current (160 mA @ 100 kHz) is identical to the original specification.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes, all listed substitute parts are available in Tape & Reel (TR) packaging format, which is standard for surface mount component distribution and automated assembly processes. The original AFK476M06C12B-F packaging format is not specified in the provided data, but all substitutes maintain compatibility with standard SMD assembly equipment and handling procedures.

Q: What is the inventory status for each substitute part?

A: Current inventory levels are as follows: EEE-FK0J470AR (2357 units), UCL0J470MCL1GS (2287 units), EEE-FK0J470R (1360 units), UUD0J470MCL1GS (1142 units), and EMZA6R3ARA470ME61G (656 units). The original AFK476M06C12B-F has 755 units in stock but is discontinued. For long-term supply assurance, select from active manufacturer parts with higher inventory availability.

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