RFS-6V470MF3#5 Equivalent & Substitute Parts

Part Overview

The RFS-6V470MF3#5 is a 47 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Elna America. This component is rated for 1000 hours at 85°C and is designed for audio applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity.

Key Parameters

Parameter	Value
Capacitance	47 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.098" (2.50mm)
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.433" (11.00mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RFS-6V470MF3#5 is determined by the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

Capacitance: 47 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: Substitute parts must equal or exceed 6.3 V
Polarization: Polar (exact match required)

Mechanical Compatibility Criteria:

Package Type: Radial, Can (exact match required)
Lead Spacing: 0.098" (2.50mm) (exact match required)
Size / Dimension: 0.248" Dia (6.30mm) (exact match required)
Mounting Type: Through Hole (exact match required)

Compliance Criteria:

RoHS Status: ROHS3 Compliant (maintained across all substitutes)

Substitute parts are grouped into two categories: Upgrade parts (higher voltage ratings and extended lifetime specifications) and Similar parts (equivalent voltage ratings with alternative manufacturer specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Size / Dimension	Height (Max)	Product Status
RFS-6V470MF3#5	Elna America	47 µF	6.3 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
UFW1H470MED	Nichicon	47 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
UFW1J470MED	Nichicon	47 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
UKT1H470MED	Nichicon	47 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
UKW1H470MED	Nichicon	47 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
UKW1J470MED	Nichicon	47 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
476SAK050M	Cornell Dubilier / Illinois Capacitor	47 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.413" (10.50mm)	Active
515D476M050AA6AE3	Vishay Sprague	47 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.433" (11.00mm)	Obsolete
EEU-EB1H470S	Panasonic Electronic Components	47 µF	50 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.480" (12.20mm)	Active
EEU-FC1H470	Panasonic Electronic Components	47 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.441" (11.20mm)	Active
EEU-FC1V470	Panasonic Electronic Components	47 µF	35 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.248" Dia (6.30mm)	0.441" (11.20mm)	Active

Engineering Selection Recommendations

Upgrade Category (Higher Voltage Rating):

The upgrade substitutes UFW1H470MED, UFW1J470MED, UKT1H470MED, UKW1H470MED, and UKW1J470MED provide voltage ratings of 50 V or 63 V, exceeding the original 6.3 V specification. These parts maintain the 47 µF capacitance and ±20% tolerance while offering extended lifetime ratings (2000 hours at 85°C or 1000 hours at 105°C). All upgrade parts are ROHS3 compliant and suitable for direct substitution in applications where the original 6.3 V rating is not a circuit constraint.

Similar Category (Active Product Status):

For applications requiring active product availability, EEU-EB1H470S and EEU-FC1H470 (Panasonic) and 476SAK050M (Cornell Dubilier) are active products with 50 V ratings. EEU-EB1H470S offers extended lifetime (5000 hours at 105°C) and active product status. EEU-FC1H470 includes AEC-Q200 automotive qualification and operates across -55°C to 105°C. The 476SAK050M provides active availability with 2000-hour lifetime at 85°C.

EEU-FC1V470 operates at 35 V and is suitable only for applications where the circuit voltage does not exceed 35 V.

Mechanical Compatibility Note:

All substitute parts maintain the 0.098" (2.50mm) lead spacing and 0.248" (6.30mm) diameter. Height variations exist: EEU-EB1H470S (0.480"), EEU-FC1H470 and EEU-FC1V470 (0.441"), 476SAK050M (0.413"), and remaining parts (0.433"). Verify PCB clearance for height-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RFS-6V470MF3#5 with a higher voltage-rated part?

A: Yes. The substitute parts rated at 35 V, 50 V, or 63 V are electrically compatible with the original 6.3 V specification. Higher voltage ratings provide design margin and do not degrade circuit performance in applications where the original voltage rating was adequate.

Q: What is the difference between the Nichicon UFW and UKW series substitutes?

A: Both series maintain 47 µF capacitance, ±20% tolerance, and identical mechanical dimensions. UFW series parts are rated for 2000 hours at 85°C. UKW series parts are rated for 2000 hours at 85°C (UKW1H470MED, UKW1J470MED) or 1000 hours at 105°C (UKT1H470MED). Selection depends on application temperature requirements.

Q: Are the Panasonic EEU-FC series parts suitable for my audio application?

A: Yes. EEU-FC1H470 and EEU-FC1V470 are rated for audio and automotive applications. Both maintain 47 µF capacitance and ±20% tolerance. EEU-FC1H470 operates at 50 V; EEU-FC1V470 operates at 35 V. Both include AEC-Q200 automotive qualification and extended operating temperature range (-55°C to 105°C).

Q: What is the height difference between substitute parts, and does it matter?

A: Height variations range from 0.413" to 0.480". The original RFS-6V470MF3#5 is 0.433". Verify PCB layout clearance for components mounted near the capacitor. Height differences may affect board assembly in space-constrained designs.

Q: Which substitute part offers the longest operational lifetime?

A: EEU-EB1H470S (Panasonic) offers 5000 hours at 105°C, the longest lifetime among all listed substitutes. This part is active and ROHS3 compliant, making it suitable for long-term production applications.

Q: Is the 476SAK050M suitable as a direct replacement?

A: Yes. The 476SAK050M (Cornell Dubilier) maintains 47 µF capacitance, ±20% tolerance, 50 V rating, and identical lead spacing and diameter. Height is 0.413" (10.50mm), slightly shorter than the original. This part is active and ROHS3 compliant.

Q: Can I use EEU-FC1V470 (35 V) instead of the original 6.3 V part?

A: EEU-FC1V470 is compatible only if your circuit voltage does not exceed 35 V. The 35 V rating provides adequate margin above the original 6.3 V specification. Verify circuit maximum voltage before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original RFS-6V470MF3#5.

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