RFS-100V2R2ME3#5 Equivalent & Substitute Parts

Part Overview

The RFS-100V2R2ME3#5 is a 2.2 µF, 100 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 and procurement.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Tolerance	±20%
Voltage - Rated	100 V
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Ripple Current @ Low Frequency	25 mA @ 120 Hz
Lead Spacing	0.079" (2.00mm)
Size / Dimension	0.197" Dia (5.00mm)
Height - Seated (Max)	0.492" (12.50mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RFS-100V2R2ME3#5 is determined by strict electrical and mechanical compatibility. All substitute parts must meet the following core criteria:

Electrical Requirements:

Capacitance: 2.2 µF
Tolerance: ±20%
Voltage Rating: 100 V (minimum)
Polarization: Polar

Mechanical Requirements:

Mounting Type: Through Hole
Package / Case: Radial, Can
Lead Spacing: 0.079" (2.00mm) or compatible pitch
Physical dimensions compatible with PCB layout

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected

Substitute parts are grouped into three categories based on their relationship to the main part: parametric equivalents (identical electrical and mechanical specifications), similar parts (same electrical ratings with minor dimensional variations), and upgrade parts (enhanced performance characteristics such as extended temperature range or longer lifetime).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Size Dia	Height (Max)	Product Status	RoHS Status
RFS-100V2R2ME3#5	Elna America	2.2 µF	100 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant
RFS-100V2R2MF3#5	Elna America	2.2 µF	100 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Active	ROHS3 Compliant
EEU-FC2A2R2	Panasonic Electronic Components	2.2 µF	100 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00mm)	0.197" (5.00mm)	0.472" (12.00mm)	Active	ROHS3 Compliant
UPW2A2R2MDD	Nichicon	2.2 µF	100 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00mm)	0.197" (5.00mm)	0.433" (11.00mm)	Obsolete	ROHS3 Compliant
UKW2A2R2MDD	Nichicon	2.2 µF	100 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" (5.00mm)	0.433" (11.00mm)	Obsolete	ROHS3 Compliant
UFG2A2R2MDM	Nichicon	2.2 µF	100 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent: UFG2A2R2MDM (Nichicon) provides identical electrical and mechanical specifications to the RFS-100V2R2ME3#5. This part matches the capacitance, voltage rating, tolerance, lifetime rating, operating temperature range, lead spacing, and physical dimensions. Both parts are rated for 1000 hours at 85°C and are suitable for audio applications. The UFG2A2R2MDM is classified as obsolete, consistent with the main part status.

Similar Substitute (Same Manufacturer): RFS-100V2R2MF3#5 (Elna America) maintains identical electrical specifications but features different lead spacing (0.098" vs. 0.079") and physical dimensions. This part is active and available in higher inventory quantities (2499 pcs). Selection of this part requires PCB layout verification to confirm compatibility with the modified lead spacing and larger can diameter.

Upgrade Substitute (Enhanced Performance): EEU-FC2A2R2 (Panasonic Electronic Components) offers extended operating temperature range (-55°C ~ 105°C) and higher temperature lifetime rating (1000 Hrs @ 105°C). This part maintains identical lead spacing and can diameter to the main part, enabling direct mechanical substitution. The EEU-FC2A2R2 carries AEC-Q200 automotive qualification and is currently active with substantial inventory availability (7923 pcs).

Extended Lifetime Substitute: UPW2A2R2MDD (Nichicon) provides doubled lifetime rating (2000 Hrs @ 105°C) with extended operating temperature range (-55°C ~ 105°C). This part matches the lead spacing and can diameter of the main part. The UPW2A2R2MDD is classified as obsolete but maintains adequate inventory (1819 pcs).

Audio Application Substitute: UKW2A2R2MDD (Nichicon) is optimized for audio applications with doubled lifetime rating (2000 Hrs @ 85°C) and higher ripple current capability (30 mA @ 120 Hz). This part matches the lead spacing and can diameter of the main part and operates within the same temperature range as the original component.

Frequently Asked Questions (FAQ)

Q: Can RFS-100V2R2MF3#5 be used as a direct replacement for RFS-100V2R2ME3#5?

A: RFS-100V2R2MF3#5 is electrically equivalent but has different lead spacing (0.098" vs. 0.079") and larger physical dimensions. Direct substitution requires PCB layout verification. The part is active and available in higher quantities.

Q: What is the primary advantage of EEU-FC2A2R2 over the original part?

A: EEU-FC2A2R2 extends the operating temperature range to -55°C ~ 105°C and provides 1000-hour lifetime at 105°C versus 85°C for the original part. It maintains identical lead spacing and can diameter, enabling direct mechanical substitution. The part carries AEC-Q200 automotive qualification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the compliance status of the main part.

Q: Which substitute part offers the longest operational lifetime?

A: UPW2A2R2MDD provides 2000 hours at 105°C, double the lifetime of the original part at 85°C. UKW2A2R2MDD also provides 2000 hours but at 85°C.

Q: Can I use a substitute part with a different lead spacing?

A: Lead spacing compatibility depends on PCB design. RFS-100V2R2MF3#5 has 0.098" (2.50mm) spacing versus the original 0.079" (2.00mm). All other substitutes maintain the original 0.079" (2.00mm) lead spacing and are mechanically compatible without PCB modification.

Q: What is the difference between parametric equivalents and upgrade substitutes?

A: Parametric equivalents (UFG2A2R2MDM) match all electrical and mechanical specifications of the original part. Upgrade substitutes (EEU-FC2A2R2, UPW2A2R2MDD) provide enhanced performance characteristics such as extended temperature range or longer lifetime while maintaining electrical compatibility.

Q: Which substitute parts are currently active in production?

A: RFS-100V2R2MF3#5 (Elna America) and EEU-FC2A2R2 (Panasonic Electronic Components) are active. UFG2A2R2MDM, UPW2A2R2MDD, and UKW2A2R2MDD are classified as obsolete.

Q: Are there inventory differences between substitute parts?

A: Yes. EEU-FC2A2R2 has the highest inventory (7923 pcs), followed by RFS-100V2R2MF3#5 (2499 pcs), UFG2A2R2MDM (2046 pcs), UPW2A2R2MDD (1819 pcs), and UKW2A2R2MDD (4149 pcs).

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