SXR222M035ST Equivalent & Substitute Parts Reference

Part Overview

The SXR222M035ST is a 2200 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 1136 units currently in stock. The part is designed for general-purpose applications requiring polar electrolytic capacitance in through-hole mounting configurations.

Due to obsolete product status, equivalent substitute parts from active manufacturers are necessary for new designs and long-term supply chain continuity. Substitute parts must maintain identical electrical ratings (2200 µF capacitance, 35 V voltage rating, ±20% tolerance) and mechanical compatibility (radial can package, 0.295" lead spacing, 0.630" diameter, through-hole mounting).

Key Parameters

Parameter	SXR222M035ST Value	Unit	Substitution Criticality
Capacitance	2200	µF	Exact Match Required
Voltage Rating	35	V	Exact Match Required
Tolerance	±20%	%	Exact Match Required
Package Type	Radial, Can	—	Exact Match Required
Lead Spacing	0.295" (7.50mm)	inches (mm)	Exact Match Required
Diameter	0.630" (16.00mm)	inches (mm)	Exact Match Required
Mounting Type	Through Hole	—	Exact Match Required
Polarization	Polar	—	Exact Match Required
Operating Temperature	-40°C ~ 105°C	°C	Minimum Match Required
ESR @ 120Hz	80 mOhm	mOhm	Reference Only
Lifetime @ 105°C	5000	Hours	Application Dependent
RoHS Status	ROHS3 Compliant	—	Compliance Match Required

Substitute Part Grouping Explanation

Substitution logic for the SXR222M035ST is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Mandatory Matching Parameters:

Capacitance: 2200 µF (exact)
Voltage Rating: 35 V (exact)
Tolerance: ±20% (exact)
Package: Radial, Can (exact)
Lead Spacing: 0.295" / 7.50mm (exact)
Diameter: 0.630" / 16.00mm (exact)
Mounting: Through Hole (exact)
Polarization: Polar (exact)
Operating Temperature Range: minimum -40°C to 105°C
RoHS Compliance: ROHS3 Compliant (exact)

Secondary Considerations (Application-Dependent):

Lifetime rating at 105°C (5000 hours minimum acceptable)
ESR and impedance values (lower values indicate improved performance)
Ripple current ratings (higher values indicate improved capability)
Product status (Active preferred over Not For New Designs or Obsolete)

All identified substitute parts meet the mandatory matching criteria. Differences in height, ESR, impedance, and lifetime ratings reflect performance variations within the same electrical and mechanical envelope.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR @ 120Hz (mOhm)	Lifetime @ 105°C (Hrs)	Height Max (inches / mm)	Product Status	RoHS
SXR222M035ST	Cornell Dubilier	2200	35	±20	80	5000	1.417" / 36.00mm	Obsolete	ROHS3
228KBM035M	Cornell Dubilier / Illinois Capacitor	2200	35	±20	121	10000	1.260" / 32.00mm	Active	ROHS3
35YXJ2200M16X25	Rubycon	2200	35	±20	—	10000	1.063" / 27.00mm	Active	ROHS3
35ZLH2200MEFC16X25	Rubycon	2200	35	±20	—	10000	1.063" / 27.00mm	Active	ROHS3
35ZLQ2200MEFC16X25	Rubycon	2200	35	±20	—	6000	1.063" / 27.00mm	Active	ROHS3
EEU-FR1V222	Panasonic Electronic Components	2200	35	±20	—	10000	1.063" / 27.00mm	Active	ROHS3
EKYA350ELL222ML25S	Chemi-Con	2200	35	±20	—	10000	1.043" / 26.50mm	Active	ROHS3
EKZH350ELL222ML25S	Chemi-Con	2200	35	±20	—	6000	1.043" / 26.50mm	Active	ROHS3
EKZM350ELL222ML25S	Chemi-Con	2200	35	±20	—	10000	1.043" / 26.50mm	Active	ROHS3
ELXV350ELL222ML35S	Chemi-Con	2200	35	±20	—	5000	1.437" / 36.50mm	Active	ROHS3
UHE1V222MHD	Nichicon	2200	35	±20	—	10000	1.240" / 31.50mm	Not For New Designs	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Active Status, Extended Lifetime):

The following parts are recommended as primary substitutes due to active product status and 10,000-hour lifetime rating at 105°C:

228KBM035M (Cornell Dubilier / Illinois Capacitor): Maintains manufacturer continuity with CDE heritage. Active status ensures long-term availability. Compact height (1.260" / 32.00mm) reduces PCB footprint compared to original.
35YXJ2200M16X25 (Rubycon): Highest inventory availability (10,100 units). Compact height (1.063" / 27.00mm). Active product status with extended lifetime rating.
35ZLH2200MEFC16X25 (Rubycon): Compact height (1.063" / 27.00mm). Active status with 10,000-hour lifetime. Lowest impedance specification (13 mOhms) among Rubycon offerings.
EEU-FR1V222 (Panasonic Electronic Components): Active status with 10,000-hour lifetime. Compact height (1.063" / 27.00mm). Established supply chain through major distributor networks.
EKZM350ELL222ML25S (Chemi-Con): Active status with 10,000-hour lifetime. Compact height (1.043" / 26.50mm). Lowest impedance specification (13 mOhms) among Chemi-Con offerings.

Secondary Substitutes (Active Status, Standard Lifetime):

35ZLQ2200MEFC16X25 (Rubycon): 6,000-hour lifetime at 105°C. Suitable for applications with moderate thermal stress requirements.
EKZH350ELL222ML25S (Chemi-Con): 6,000-hour lifetime at 105°C. Compact height (1.043" / 26.50mm).
EKYA350ELL222ML25S (Chemi-Con): 10,000-hour lifetime. Compact height (1.043" / 26.50mm).

Specialized Substitute (Automotive Applications):

ELXV350ELL222ML35S (Chemi-Con): AEC-Q200 rated for automotive applications. Extended operating temperature range (-55°C to 105°C). Height matches original (1.437" / 36.50mm). 5,000-hour lifetime at 105°C.

Not Recommended for New Designs:

UHE1V222MHD (Nichicon): Product status "Not For New Designs" indicates manufacturer discontinuation trajectory. REACH status "Affected" indicates regulatory compliance concerns. Suitable only for legacy system maintenance.

All recommended substitutes maintain ROHS3 compliance and through-hole radial can package compatibility with the original SXR222M035ST.

Frequently Asked Questions (FAQ)

Q1: Can I substitute the SXR222M035ST with any of these parts directly on my PCB?

A: Yes, all listed substitute parts maintain identical electrical ratings (2200 µF, 35 V, ±20% tolerance) and mechanical compatibility (radial can package, 0.295" lead spacing, 0.630" diameter, through-hole mounting). However, verify PCB layout clearance for height variations. The original part measures 1.417" (36.00mm) in height. Most substitutes are more compact (1.063" to 1.043"), which improves PCB density. The ELXV350ELL222ML35S matches the original height at 1.437" (36.50mm).

Q2: What is the difference between 5,000-hour and 10,000-hour lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) before capacitance degradation reaches 80% of initial value. A 10,000-hour rating provides extended service life under thermal stress compared to 5,000-hour rated parts. For applications operating continuously at elevated temperatures, 10,000-hour rated substitutes (228KBM035M, 35YXJ2200M16X25, 35ZLH2200MEFC16X25, EEU-FR1V222, EKZM350ELL222ML25S, EKYA350ELL222ML25S) are preferred.

Q3: Why do some substitute parts have lower ESR and impedance values?

A: ESR (Equivalent Series Resistance) and impedance are performance characteristics that vary among manufacturers and series designs. Lower values indicate reduced internal resistance, which improves ripple current handling and reduces heat generation. These differences reflect manufacturing process improvements and design optimization. All parts meet the electrical requirements for the 2200 µF, 35 V application.

Q4: Is the ELXV350ELL222ML35S suitable for my application?

A: The ELXV350ELL222ML35S is specifically designed for automotive applications with AEC-Q200 certification and extended temperature range (-55°C to 105°C). Use this part only if your application requires automotive-grade qualification or operates below -40°C. For standard industrial and consumer applications operating within -40°C to 105°C, other substitutes are appropriate.

Q5: Why is UHE1V222MHD marked "Not For New Designs"?

A: "Not For New Designs" status indicates the manufacturer (Nichicon) is transitioning this product toward discontinuation. While 18,998 units are currently in stock and the part meets all electrical and mechanical specifications, it is not recommended for new product development. Use this part only for legacy system repairs or maintenance. For new designs, select from Active status substitutes.

Q6: What does ROHS3 Compliant mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets European Union environmental regulations restricting lead, mercury, cadmium, hexavalent chromium, and certain brominated flame retardants. All listed substitute parts are ROHS3 compliant, ensuring regulatory compatibility with modern manufacturing and distribution requirements.

Q7: How do I choose between Rubycon, Panasonic, Chemi-Con, and Nichicon substitutes?

A: Selection depends on application requirements and supply chain preferences. Rubycon (35YXJ2200M16X25, 35ZLH2200MEFC16X25) offers highest inventory availability and compact form factors. Panasonic (EEU-FR1V222) provides established global distribution. Chemi-Con (EKZM350ELL222ML25S, EKYA350ELL222ML25S) offers multiple lifetime options. Nichicon (UHE1V222MHD) is not recommended for new designs. For critical applications, verify manufacturer datasheets for ripple current ratings and thermal performance specifications.

Q8: Can I use a substitute with a different height on my existing PCB?

A: Height differences may affect PCB layout compatibility. The original SXR222M035ST measures 1.417" (36.00mm). Most substitutes are more compact (1.063" to 1.043"), which improves clearance but may require PCB layout verification. The ELXV350ELL222ML35S (1.437" / 36.50mm) and 228KBM035M (1.260" / 32.00mm) offer intermediate heights. Verify component clearance with adjacent PCB elements, enclosure constraints, and thermal management requirements before substitution.

Q9: What is the significance of lead spacing and diameter specifications?

A: Lead spacing (0.295" / 7.50mm) and diameter (0.630" / 16.00mm) are critical mechanical parameters that determine PCB footprint compatibility. All substitute parts maintain these exact specifications, ensuring direct PCB hole alignment without layout modification. These parameters are non-negotiable for through-hole radial can packages.

Q10: Are there any compliance or certification differences between substitutes?

A: All substitutes are ROHS3 compliant. The ELXV350ELL222ML35S carries additional AEC-Q200 automotive certification. The UHE1V222MHD has "REACH Affected" status, indicating potential regulatory compliance concerns for new applications. For standard industrial applications, ROHS3 compliance is sufficient. For automotive applications, specify ELXV350ELL222ML35S.

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