Equivalent & Substitute Parts for 226SAK050M

Part Overview

The 226SAK050M is a 22 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SAK series. This radial, through-hole component is rated for 2000 hours at 85°C with an ESR of 9.043 Ohm @ 120 Hz and is designed for general-purpose applications. The part is currently active in production with 981 pieces in stock.

Equivalent and substitute parts are necessary when the original 226SAK050M becomes unavailable, when design requirements demand enhanced performance characteristics such as extended lifetime or higher operating temperature ratings, or when alternative manufacturers' components meet the same electrical and mechanical specifications for cost optimization or supply chain flexibility.

Key Parameters

Parameter	Value	Substitution Relevance
Capacitance	22 µF	Critical - must match exactly
Voltage Rating	50 V	Critical - must match or exceed
Tolerance	±20%	Critical - must match or be tighter
Polarization	Polar	Critical - must match
Mounting Type	Through Hole	Critical - must match
Package / Case	Radial, Can	Critical - must match
Lead Spacing	0.079" (2.00 mm)	Critical - must match for PCB compatibility
Size / Dimension	0.197" Dia (5.00 mm)	Critical - must match for board fit
Height - Seated (Max)	0.413" (10.50 mm)	Important - height variation affects board clearance
Lifetime @ Temperature	2000 Hrs @ 85°C	Important - determines reliability; upgrades acceptable
Operating Temperature Range	-40°C ~ 85°C	Important - must meet or exceed application requirements
RoHS Status	ROHS3 Compliant	Important - regulatory compliance requirement

Substitute Part Grouping Explanation

Substitution logic for the 226SAK050M is based on the following criteria:

Critical Matching Parameters:

Capacitance: 22 µF (exact match required)
Voltage Rating: 50 V minimum (equal or higher acceptable)
Tolerance: ±20% (equal or tighter acceptable)
Polarization: Polar (must match)
Mounting Type: Through Hole (must match)
Package / Case: Radial, Can (must match)
Lead Spacing: 0.079" (2.00 mm) (must match for PCB compatibility)
Size / Dimension: 0.197" Dia (5.00 mm) (must match)

Performance Enhancement Parameters:

Lifetime @ Temperature: 2000 Hrs @ 85°C (upgrades to higher lifetime or temperature ratings are acceptable)
Operating Temperature Range: -40°C ~ 85°C (extensions to higher maximum temperatures are acceptable)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (must maintain compliance)

Substitute parts are classified into three categories:

Direct Substitutes - Parts meeting all critical parameters with equivalent or similar performance characteristics
Upgrade Substitutes - Parts meeting all critical parameters with enhanced lifetime, temperature rating, or performance specifications
Similar Parts - Parts from the same manufacturer family with matching critical parameters

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Lead Spacing	Size Dia	Product Status	Inventory
226SAK050M	Cornell Dubilier / Illinois Capacitor	SAK	22 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.413" (10.50 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Active	981 Pcs
UFW1H220MDD	Nichicon	UFW	22 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	37800 Pcs
UKW1H220MDD	Nichicon	UKW	22 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	2801 Pcs
UVK1H220MDD	Nichicon	UVK	22 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	4363 Pcs
EEU-EB1H220S	Panasonic Electronic Components	EB-A	22 µF	50 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.472" (12.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Active	43716 Pcs
EKZE500ELL220ME11D	Chemi-Con	KZE	22 µF	50 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.492" (12.50 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Active	3502 Pcs
UFW1J220MDD	Nichicon	UFW	22 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	3125 Pcs
UHE1H220MDD	Nichicon	UHE	22 µF	50 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.433" (11.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	17100 Pcs
UKW1J220MDD	Nichicon	UKW	22 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	2334 Pcs
UPW1H220MDD	Nichicon	UPW	22 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.433" (11.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Obsolete	19044 Pcs
SK220M050ST	Cornell Dubilier Electronics (CDE)	SK	22 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.512" (13.00 mm)	0.079" (2.00 mm)	0.197" (5.00 mm)	Active	10779 Pcs

Engineering Selection Recommendations

Direct Substitutes (Equivalent Performance):

UFW1H220MDD, UKW1H220MDD, and UVK1H220MDD are direct substitutes meeting all critical electrical and mechanical parameters. These Nichicon components maintain 22 µF capacitance, 50 V voltage rating, ±20% tolerance, and 2000 Hrs @ 85°C lifetime. All three are ROHS3 compliant. Height variations (0.433" to 0.492") must be evaluated against PCB clearance constraints. These parts are classified as obsolete; however, substantial inventory is available (2801 to 37800 pieces).

Upgrade Substitutes (Enhanced Performance):

EEU-EB1H220S (Panasonic) and EKZE500ELL220ME11D (Chemi-Con) provide extended lifetime and higher operating temperature ratings while maintaining 22 µF, 50 V specifications. EEU-EB1H220S offers 5000 Hrs @ 105°C with active product status and 43716 pieces in stock. EKZE500ELL220ME11D provides 2000 Hrs @ 105°C with active status and 3502 pieces available. Both are ROHS3 compliant. Height differences (0.472" and 0.492" respectively) require PCB clearance verification.

UHE1H220MDD and UPW1H220MDD are Nichicon upgrade options with 5000 Hrs @ 105°C and 2000 Hrs @ 105°C respectively, extending operating temperature to 105°C. Both are ROHS3 compliant with substantial inventory (17100 and 19044 pieces). Product status is obsolete.

Voltage-Rated Upgrades:

UFW1J220MDD and UKW1J220MDD provide 63 V rating with 22 µF capacitance and ±20% tolerance. These are suitable when higher voltage margin is required. Both are ROHS3 compliant with obsolete status.

Similar Manufacturer Part:

SK220M050ST from Cornell Dubilier Electronics (same manufacturer family as 226SAK050M) matches all critical parameters with 2000 Hrs @ 85°C lifetime and active product status. Height is 0.512" (13.00 mm), requiring clearance verification. ESR is 6.03 Ohm, compared to 9.043 Ohm in the original part. 10779 pieces in stock.

Selection Criteria:

For direct replacement with minimal design impact: UFW1H220MDD, UKW1H220MDD, or UVK1H220MDD
For enhanced reliability in high-temperature environments: EEU-EB1H220S or EKZE500ELL220ME11D
For same-manufacturer continuity: SK220M050ST
For higher voltage margin: UFW1J220MDD or UKW1J220MDD

All recommended substitutes are ROHS3 compliant and maintain through-hole radial can package format with 0.079" (2.00 mm) lead spacing and 0.197" (5.00 mm) diameter.

Frequently Asked Questions (FAQ)

Q: Can UFW1H220MDD replace 226SAK050M directly on the PCB?

A: UFW1H220MDD meets all critical electrical specifications (22 µF, 50 V, ±20%, polar, through-hole radial). However, its seated height is 0.492" (12.50 mm) compared to 0.413" (10.50 mm) for the original part. PCB clearance must be verified before substitution.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (UFW1H220MDD, UKW1H220MDD, UVK1H220MDD) maintain equivalent electrical performance with 2000 Hrs @ 85°C lifetime. Upgrade substitutes (EEU-EB1H220S, EKZE500ELL220ME11D, UHE1H220MDD, UPW1H220MDD) extend lifetime to 5000 Hrs or increase maximum operating temperature to 105°C, providing enhanced reliability for demanding applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts maintain ROHS3 compliance, matching the regulatory status of the original 226SAK050M.

Q: Can I use UFW1J220MDD or UKW1J220MDD as substitutes?

A: These parts have 63 V voltage rating instead of 50 V. They are electrically compatible and provide higher voltage margin. However, they are classified as upgrades rather than direct substitutes. Use only if the higher voltage rating does not conflict with circuit design constraints.

Q: What is the significance of lead spacing and diameter matching?

A: Lead spacing (0.079" / 2.00 mm) and diameter (0.197" / 5.00 mm) are critical for PCB footprint compatibility. All recommended substitutes maintain these dimensions to ensure direct board-level compatibility without layout modifications.

Q: Why are some substitute parts marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. However, substantial inventory remains available from distributors. Obsolete parts are suitable for current applications but may face future supply constraints. Active-status parts (EEU-EB1H220S, EKZE500ELL220ME11D, SK220M050ST) provide longer-term supply security.

Q: How does height variation affect component selection?

A: Seated height ranges from 0.413" (10.50 mm) to 0.512" (13.00 mm) across substitute options. Taller components may interfere with adjacent board components, conformal coatings, or enclosure clearances. Verify PCB layout and mechanical constraints before selecting parts with height exceeding the original specification.

Q: Is SK220M050ST from the same manufacturer as 226SAK050M?

A: Yes. Both are manufactured by Cornell Dubilier Electronics. SK220M050ST is from the SK series and provides same-manufacturer continuity with active product status. ESR is 6.03 Ohm compared to 9.043 Ohm in the SAK series, indicating lower impedance performance.

Q: Can I mix different substitute parts in the same circuit board?

A: All recommended substitutes meet the same critical electrical specifications (22 µF, 50 V, ±20%, polar). Mixing different manufacturers or series is acceptable from an electrical standpoint. However, consistency in height and ESR characteristics across the board may be preferred for thermal management and ripple current distribution uniformity.

Q: What does ±20% tolerance mean for capacitance?

A: ±20% tolerance indicates the actual capacitance value can range from 17.6 µF to 26.4 µF while remaining within specification. All substitute parts maintain this tolerance, ensuring circuit compatibility where the original part was specified.

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