SH222M050ST Equivalent & Substitute Parts Reference

Part Overview

The SH222M050ST is a 2200 µF, 50 V aluminum electrolytic capacitor in radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 867 pieces currently in stock. The part is designed for general-purpose applications requiring through-hole mounting with a 0.295" (7.50 mm) lead spacing and 18.00 mm diameter can.

Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and long-term supply chain continuity. The following substitute components maintain the core electrical specifications while offering improved availability and extended product lifecycles.

Key Parameters

Parameter	SH222M050ST Value	Substitution Criticality
Capacitance	2200 µF	Critical
Voltage Rating	50 V	Critical
Tolerance	±20%	Critical
Package Type	Radial, Can	Critical
Lead Spacing	0.295" (7.50 mm)	Critical
Can Diameter	0.709" (18.00 mm)	Critical
Mounting Type	Through Hole	Critical
Operating Temperature Range	-40°C to 105°C	Important
ESR @ 120 Hz	80 mOhm	Important
Lifetime @ 105°C	2000 Hrs	Important
RoHS Compliance	ROHS3 Compliant	Important

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict adherence to the following allowed parameters:

Critical Matching Parameters:

Capacitance: 2200 µF (exact match required)
Voltage Rating: 50 V (exact match required for standard substitutes; 63 V acceptable as upgrade only)
Tolerance: ±20% (exact match required)
Package: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Can Diameter: 0.709" (18.00 mm) (exact match required)
Mounting: Through Hole (exact match required)

Important Compatibility Parameters:

Operating Temperature Range: Minimum -40°C to 105°C required
RoHS Status: ROHS3 Compliant required
Polarization: Polar (as specified for original part)

Performance Parameters (Allowed Variation):

ESR: May vary; lower values indicate improved performance
Lifetime @ Temperature: May exceed original specification
Ripple Current: May exceed original specification
Height (Seated): Variation permitted within mechanical envelope constraints

All substitute parts listed maintain identical lead spacing, can diameter, and mounting configuration, ensuring direct PCB compatibility without layout modifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR / Impedance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Product Status	RoHS
SH222M050ST	Cornell Dubilier	2200 µF	50 V	±20%	80 mOhm @ 120 Hz	2000 Hrs @ 105°C	-40°C to 105°C	1.417" (36.00 mm)	Obsolete	ROHS3
SEK222M050ST	Cornell Dubilier	2200 µF	50 V	±20%	80 mOhm	2000 Hrs @ 105°C	-55°C to 105°C	1.417" (36.00 mm)	Active	ROHS3
50ZLJ2200M18X25	Rubycon	2200 µF	50 V	±20%	22 mOhms	10000 Hrs @ 105°C	-40°C to 105°C	1.063" (27.00 mm)	Active	ROHS3
EKY-500ELL222MMP1S	Chemi-Con	2200 µF	50 V	±20%	17 mOhms	10000 Hrs @ 105°C	-40°C to 105°C	1.457" (37.00 mm)	Active	ROHS3
EKYB500ELL222MMN3S	Chemi-Con	2200 µF	50 V	±20%	14 mOhms	10000 Hrs @ 105°C	-40°C to 105°C	1.299" (33.00 mm)	Active	ROHS3
EKZN500ELL222MMN3S	Chemi-Con	2200 µF	50 V	±20%	16 mOhms	10000 Hrs @ 105°C	-40°C to 105°C	1.299" (33.00 mm)	Active	ROHS3
UHE1H222MHD6	Nichicon	2200 µF	50 V	±20%	17 mOhms	10000 Hrs @ 105°C	-40°C to 105°C	1.398" (35.50 mm)	Not For New Designs	ROHS3
EEU-FC1H222	Panasonic	2200 µF	50 V	±20%	23 mOhms	5000 Hrs @ 105°C	-55°C to 105°C	1.398" (35.50 mm)	Active	ROHS3
ELXZ500ELL222MM35S	Chemi-Con	2200 µF	50 V	±20%	23 mOhms	8000 Hrs @ 105°C	-55°C to 105°C	1.437" (36.50 mm)	Active	ROHS3
EGPA500ELL222MM35S	Chemi-Con	2200 µF	50 V	±20%	22 mOhm @ 100 kHz	5000 Hrs @ 125°C	-40°C to 125°C	1.437" (36.50 mm)	Active	ROHS3
EGPD630ELL222MM35H	Chemi-Con	2200 µF	63 V	±20%	22 mOhm @ 100 kHz	2000 Hrs @ 135°C	-40°C to 135°C	1.437" (36.50 mm)	Active	ROHS3

Engineering Selection Recommendations

Direct Equivalent (Same Voltage Rating - 50 V):

SEK222M050ST (Cornell Dubilier) is the primary direct equivalent. This part maintains the same manufacturer lineage as the obsolete SH222M050ST, identical electrical specifications (2200 µF, 50 V, ±20%, 80 mOhm ESR), and is currently in active production status. The extended operating temperature range (-55°C to 105°C) provides improved thermal margin. This part is recommended as the first choice for direct replacement in existing designs.

50ZLJ2200M18X25 (Rubycon) provides a direct 50 V equivalent with significantly improved performance characteristics. The 10000-hour lifetime at 105°C (versus 2000 hours for the original) and reduced impedance (22 mOhms) indicate superior reliability and lower ripple current sensitivity. The reduced height (27.00 mm versus 36.00 mm) may provide PCB layout advantages. This part is suitable for applications where extended service life is required.

Active Production Alternatives (50 V Rating):

EKY-500ELL222MMP1S, EKYB500ELL222MMN3S, and EKZN500ELL222MMN3S (Chemi-Con) are all active production parts with 10000-hour lifetimes at 105°C. These parts feature lower impedance values (14-17 mOhms) compared to the original specification, indicating improved high-frequency performance. Height variations (33.00-37.00 mm) require verification against PCB clearance constraints.

EEU-FC1H222 (Panasonic) is an active production part with AEC-Q200 automotive qualification. The 5000-hour lifetime at 105°C is intermediate between the original and extended-life alternatives. The extended operating temperature range (-55°C to 105°C) and automotive rating make this suitable for automotive and industrial applications requiring certified components.

ELXZ500ELL222MM35S (Chemi-Con) combines active production status with AEC-Q200 automotive qualification and 8000-hour lifetime at 105°C. The extended operating temperature range (-55°C to 105°C) provides thermal margin for demanding applications.

EGPA500ELL222MM35S (Chemi-Con) is an automotive-qualified part (AEC-Q200) with extended temperature operation to 125°C and 5000-hour lifetime at that elevated temperature. This part is suitable for high-temperature automotive and industrial applications.

Voltage Upgrade Option (63 V Rating):

EGPD630ELL222MM35H (Chemi-Con) provides a voltage upgrade to 63 V while maintaining 2200 µF capacitance and ±20% tolerance. This part is suitable for applications where increased voltage margin is required or where 63 V bus voltages are present. The AEC-Q200 automotive qualification and extended temperature range (-40°C to 135°C) support demanding applications.

Not Recommended for New Designs:

UHE1H222MHD6 (Nichicon) carries a "Not For New Designs" status and should not be selected for new product development, despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can SEK222M050ST directly replace SH222M050ST without PCB modifications?

A: Yes. SEK222M050ST maintains identical lead spacing (0.295" / 7.50 mm), can diameter (0.709" / 18.00 mm), and height (1.417" / 36.00 mm). No PCB layout changes are required. Both parts are through-hole radial can packages with identical mounting footprints.

Q: What is the primary difference between the substitute parts?

A: The main differences are product status (active versus obsolete), lifetime ratings at temperature, and ESR/impedance values. All listed substitutes maintain the critical parameters: 2200 µF capacitance, 50 V rating (except EGPD630ELL222MM35H at 63 V), ±20% tolerance, and identical mechanical dimensions for PCB compatibility.

Q: Why do some substitute parts have lower ESR or impedance values?

A: Lower ESR and impedance values indicate improved capacitor construction and materials. These improvements result in reduced ripple current sensitivity, lower heat generation, and better high-frequency performance. Lower ESR is generally beneficial and does not create compatibility issues.

Q: Can I use 50ZLJ2200M18X25 if my PCB has limited height clearance?

A: Yes, if clearance is the constraint. The 50ZLJ2200M18X25 has a maximum seated height of 1.063" (27.00 mm), which is significantly shorter than the original SH222M050ST at 1.417" (36.00 mm). However, verify that the reduced height does not conflict with other component placement or thermal management requirements.

Q: Are automotive-qualified parts (AEC-Q200) suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates enhanced reliability testing and stricter manufacturing controls. These parts are suitable for any application and provide additional assurance of quality and consistency. Examples include EEU-FC1H222, EGPA500ELL222MM35S, ELXZ500ELL222MM35S, and EGPD630ELL222MM35H.

Q: What is the advantage of EGPD630ELL222MM35H with 63 V rating?

A: The 63 V rating provides increased voltage margin for applications operating near 50 V bus levels or where transient overvoltage protection is required. The part also features extended temperature operation to 135°C and AEC-Q200 automotive qualification. Use this part only if the 63 V rating is required; standard 50 V substitutes are preferred for 50 V applications.

Q: Why is UHE1H222MHD6 marked "Not For New Designs"?

A: This designation indicates that the manufacturer (Nichicon) is transitioning this product line and recommends alternative parts for new product development. While the part meets electrical specifications, it should not be selected for designs with long production lifecycles.

Q: Do all substitute parts have the same ripple current ratings?

A: No. Ripple current ratings vary among substitutes due to differences in ESR/impedance and internal construction. Higher ripple current capability indicates better performance in AC-biased applications. Specific ripple current values are provided in the parameter comparison table for applications requiring this specification.

Q: Is REACH compliance status important for part selection?

A: REACH status is provided for regulatory tracking purposes. All listed parts are either REACH Unaffected or REACH Affected. Verify REACH compliance requirements with your regulatory or procurement department if your application is subject to REACH regulations.

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

A: Yes, provided all parts meet the critical parameters (2200 µF, 50 V, ±20%, identical lead spacing and can diameter). However, for consistency and supply chain management, using a single part number across a design is recommended.

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