Equivalent & Substitute Parts for RFS-25V220MF3#5

Part Overview

The RFS-25V220MF3#5 is a 22 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Elna America as part of the RFS SILMIC II series. 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 procurement and design continuity. Substitute parts are selected based on matching or exceeding the electrical and mechanical specifications of the original component.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage - Rated	25 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.098" (2.50mm)
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.433" (11.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RFS-25V220MF3#5 are grouped into two categories based on substitution logic:

Direct Equivalent (Same Electrical Specifications): The RFS-25V220ME3#5 shares identical capacitance (22 µF), voltage rating (25 V), tolerance (±20%), and operating temperature range (-40°C ~ 85°C). Both are through-hole radial can packages with ROHS3 compliance. The primary difference is packaging format (Bulk vs. standard) and slightly reduced ripple current capacity (60 mA vs. 70 mA @ 120 Hz). This part is a direct functional equivalent.

Upgraded Substitutes (Higher Voltage or Enhanced Performance): The following parts exceed the original specifications and are suitable for applications requiring higher voltage ratings, extended temperature ranges, or improved reliability:

EEU-FC1J220 (Panasonic): 22 µF, 63 V rated voltage, 1000 Hrs @ 105°C, active product status
UKL1V220MEDANA (Nichicon): 22 µF, 35 V rated voltage, 1000 Hrs @ 105°C
UKW2A220MED (Nichicon): 22 µF, 100 V rated voltage, 2000 Hrs @ 85°C
UPW1J220MED (Nichicon): 22 µF, 63 V rated voltage, 2000 Hrs @ 105°C

All substitute parts maintain identical capacitance (22 µF), tolerance (±20%), polarization (Polar), and through-hole radial can mounting. Lead spacing and physical dimensions remain consistent at 0.098" (2.50mm) and 0.248" Dia (6.30mm) respectively.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Size Dia	Height Max	Product Status	RoHS Status
RFS-25V220MF3#5	Elna America	22 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	ROHS3
RFS-25V220ME3#5	Elna America	22 µF	25 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3
EEU-FC1J220	Panasonic	22 µF	63 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.441" (11.20mm)	Active	ROHS3
UKL1V220MEDANA	Nichicon	22 µF	35 V	±20%	1000 Hrs @ 105°C	-40°C ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Not For New Designs	ROHS3
UKW2A220MED	Nichicon	22 µF	100 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	ROHS3
UPW1J220MED	Nichicon	22 µF	63 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Requirements): The RFS-25V220ME3#5 is the closest equivalent to the RFS-25V220MF3#5, maintaining identical voltage rating (25 V), capacitance (22 µF), and operating temperature range. Both parts are obsolete and ROHS3 compliant. This part is suitable when physical dimensions and electrical specifications must remain unchanged.

For Applications Requiring Higher Voltage Margin: The EEU-FC1J220 (Panasonic FC series) is the only active product among the substitutes and offers 63 V rated voltage with extended temperature operation (-55°C ~ 105°C). This part maintains identical lead spacing (0.098" / 2.50mm) and physical diameter (0.248" / 6.30mm) as the original, ensuring direct PCB compatibility. The higher voltage rating provides additional safety margin in circuits where voltage transients may occur.

For Extended Lifetime Requirements: The UPW1J220MED (Nichicon UPW series) provides 2000 hours lifetime at 105°C compared to the original 1000 hours at 85°C, with 63 V voltage rating. This part maintains identical physical dimensions and lead spacing, supporting direct board-level substitution.

For High-Voltage Applications: The UKW2A220MED (Nichicon UKW series) offers 100 V rated voltage with 2000 hours lifetime at 85°C. Physical dimensions and lead spacing match the original component, enabling direct substitution in circuits requiring higher voltage withstand capability.

All substitute parts maintain ROHS3 compliance and through-hole radial can mounting configuration. Lead spacing and diameter specifications ensure compatibility with existing PCB layouts designed for the RFS-25V220MF3#5.

Frequently Asked Questions (FAQ)

Q: Can the RFS-25V220ME3#5 be used as a direct replacement for the RFS-25V220MF3#5?

A: The RFS-25V220ME3#5 shares identical electrical specifications (22 µF, 25 V, ±20%, 1000 Hrs @ 85°C) and operating temperature range (-40°C ~ 85°C). Both are through-hole radial can packages with ROHS3 compliance. However, the RFS-25V220ME3#5 has different physical dimensions: lead spacing of 0.079" (2.00mm) versus 0.098" (2.50mm), and smaller diameter (0.197" vs. 0.248"). PCB layout compatibility must be verified before substitution.

Q: What is the advantage of using EEU-FC1J220 over the original RFS-25V220MF3#5?

A: The EEU-FC1J220 is an active product (not obsolete), rated for 63 V instead of 25 V, and operates across -55°C ~ 105°C versus -40°C ~ 85°C. It maintains identical lead spacing (0.098" / 2.50mm) and physical diameter (0.248" / 6.30mm), ensuring direct PCB compatibility. The higher voltage rating and extended temperature range provide improved reliability for long-term applications.

Q: Are all substitute parts compatible with the original PCB layout?

A: Lead spacing and physical diameter are critical for PCB compatibility. The RFS-25V220MF3#5, EEU-FC1J220, UKL1V220MEDANA, UKW2A220MED, and UPW1J220MED all share identical lead spacing (0.098" / 2.50mm) and diameter (0.248" / 6.30mm). The RFS-25V220ME3#5 has different dimensions and requires PCB layout verification. Height differences are minor and do not typically affect board-level assembly.

Q: Which substitute part is recommended for new designs?

A: The EEU-FC1J220 (Panasonic FC series) is the only active product among the substitutes and is suitable for new designs. It provides 63 V voltage rating, extended operating temperature range (-55°C ~ 105°C), and maintains physical compatibility with the original component's lead spacing and diameter.

Q: What is the difference between the RFS-25V220MF3#5 and UPW1J220MED in terms of reliability?

A: The UPW1J220MED offers 2000 hours lifetime at 105°C compared to the RFS-25V220MF3#5's 1000 hours at 85°C. The UPW1J220MED also operates across a wider temperature range (-55°C ~ 105°C). Both maintain identical physical dimensions and lead spacing, supporting direct substitution with improved long-term reliability.

Q: Can higher voltage-rated parts be used in circuits designed for 25 V?

A: Yes. Higher voltage-rated capacitors (35 V, 63 V, 100 V) can be used in 25 V circuits. The voltage rating indicates the maximum voltage the capacitor can withstand; operating at lower voltages does not degrade performance. All substitute parts maintain identical capacitance (22 µF) and tolerance (±20%), ensuring electrical compatibility.

Q: What packaging formats are available for these substitute parts?

A: The RFS-25V220MF3#5 is supplied in standard packaging, while the RFS-25V220ME3#5 is available in Bulk packaging. All other substitutes (EEU-FC1J220, UKL1V220MEDANA, UKW2A220MED, UPW1J220MED) are supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance.

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