RFS-16V222MK9#5 Equivalent & Substitute Parts Reference

Part Overview

The RFS-16V222MK9#5 is a 2200 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Elna America. This component belongs to the RFS/SILMIC II series and is rated for 1000 hours at 85°C. The part is currently obsolete, necessitating identification of equivalent and substitute components for ongoing applications requiring 2200 µF capacitance at compatible voltage and thermal ratings.

Key Parameters

Parameter	Value
Capacitance	2200 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.709" (18.00 mm)
Height (Max)	1.654" (42.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RFS-16V222MK9#5 is determined by the following criteria:

Upgrade Substitutes (50 V Rating): Parts with 50 V voltage rating provide higher voltage margin while maintaining identical 2200 µF capacitance, ±20% tolerance, and compatible mechanical dimensions (lead spacing 7.50 mm, case diameter 18.00 mm). These parts support higher ripple current ratings and extended thermal lifetimes (4000–5000 hours at elevated temperatures). Upgrade substitutes are suitable for applications where the original 16 V rating provides insufficient safety margin.

Similar Substitutes (63 V Rating): Parts with 63 V voltage rating offer maximum voltage headroom and extended operational lifetimes (10000 hours at 105°C). These maintain 2200 µF capacitance and ±20% tolerance with identical lead spacing and case diameter. Similar substitutes are applicable where enhanced reliability and thermal performance are required.

Critical Compatibility Parameters:

Capacitance: 2200 µF (fixed)
Tolerance: ±20% (fixed)
Lead Spacing: 0.295" (7.50 mm) (fixed)
Case Diameter: 0.709" (18.00 mm) (fixed)
Mounting Type: Through Hole (fixed)
Package Type: Radial, Can (fixed)

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height (Max)	Product Status
RFS-16V222MK9#5	Elna America	RFS/SILMIC II	2200 µF	16 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Obsolete
50RX302200M18X40	Rubycon	RX30	2200 µF	50 V	±20%	4000 Hrs @ 130°C	-40°C ~ 130°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Active
ELXV500ELL222MM40S	Chemi-Con	LXV	2200 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active
UPJ1H222MHD	Nichicon	UPJ	2200 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Not For New Designs
UPM1H222MHD	Nichicon	UPM	2200 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Not For New Designs
63ZLH2200MEFC18X40	Rubycon	ZLH	2200 µF	63 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Active
EKYB630ELL222MM40S	Chemi-Con	KYB	2200 µF	63 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active
EKZN630ELL222MM40S	Chemi-Con	KZN	2200 µF	63 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.634" (41.50 mm)	Active
MAL214268222E3	Vishay Beyschlag/Draloric/BC Components	142 RHS	2200 µF	63 V	±20%	2500 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.654" (42.00 mm)	Active
MAL215058222E3	Vishay Beyschlag/Draloric/BC Components	150 RMI	2200 µF	63 V	±20%	10000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.673" (42.50 mm)	Active
MAL215068222E3	Vishay Beyschlag/Draloric/BC Components	150 RMI	2200 µF	63 V	±20%	10000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.709" (18.00 mm)	1.673" (42.50 mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Minimum Voltage Upgrade):

The 50RX302200M18X40 (Rubycon RX30 series) provides direct mechanical and electrical compatibility with identical lead spacing, case diameter, and height. This part is rated for 50 V with 4000-hour lifetime at 130°C and carries AEC-Q200 automotive qualification. Product status is Active.

The ELXV500ELL222MM40S (Chemi-Con LXV series) offers 50 V rating with 5000-hour lifetime at 105°C and AEC-Q200 qualification. Height is 1.634" (41.50 mm), which is 0.020" shorter than the original. Product status is Active.

For Enhanced Reliability (63 V Rating):

The 63ZLH2200MEFC18X40 (Rubycon ZLH series) provides 63 V rating with 10000-hour lifetime at 105°C. Mechanical dimensions match the original exactly. Product status is Active.

The EKYB630ELL222MM40S (Chemi-Con KYB series) and EKZN630ELL222MM40S (Chemi-Con KZN series) both offer 63 V rating with 10000-hour lifetime at 105°C. Height is 1.634" (41.50 mm). Both are Active products.

The MAL215058222E3 and MAL215068222E3 (Vishay 150 RMI series) provide 63 V rating with 10000-hour lifetime at 105°C and AEC-Q200 automotive qualification. Operating temperature range extends to -55°C. Height is 1.673" (42.50 mm). Both are Active products.

Avoid for New Designs:

UPJ1H222MHD and UPM1H222MHD (Nichicon) carry "Not For New Designs" status and should not be selected for new applications.

Frequently Asked Questions (FAQ)

Q: Can the RFS-16V222MK9#5 be replaced with a 50 V rated capacitor?

A: Yes. A 50 V rated capacitor with 2200 µF capacitance, ±20% tolerance, and identical mechanical dimensions (lead spacing 7.50 mm, case diameter 18.00 mm) is a direct upgrade substitute. The higher voltage rating provides additional safety margin without affecting circuit operation.

Q: What is the difference between 50 V and 63 V substitute options?

A: Both 50 V and 63 V substitutes maintain the required 2200 µF capacitance and mechanical compatibility. The 63 V options provide higher voltage headroom and typically offer extended thermal lifetimes (10000 hours at 105°C versus 4000–5000 hours). Selection depends on application voltage stress requirements and desired operational lifetime.

Q: Are there height differences between substitute parts?

A: Yes. The original RFS-16V222MK9#5 has a maximum seated height of 1.654" (42.00 mm). Some substitutes measure 1.634" (41.50 mm) or 1.673" (42.50 mm). Verify PCB layout clearance before selection.

Q: Which substitute parts carry automotive qualification?

A: The following parts carry AEC-Q200 qualification: 50RX302200M18X40 (Rubycon), ELXV500ELL222MM40S (Chemi-Con), UPM1H222MHD (Nichicon), MAL215058222E3 (Vishay), and MAL215068222E3 (Vishay).

Q: Can I use a substitute with "Not For New Designs" status?

A: Parts marked "Not For New Designs" (UPJ1H222MHD, UPM1H222MHD) are available for legacy system repairs and field replacements only. For new product development, select parts with Active product status.

Q: What is the significance of ripple current ratings?

A: Ripple current capacity determines the maximum AC current the capacitor can handle at specified frequencies. The original part supports 2.15 A @ 120 Hz and 2.58 A @ 100 kHz. Substitute parts maintain or exceed these ratings, ensuring thermal stability under operating conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the original RFS-16V222MK9#5.

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