Equivalent & Substitute Parts for SXR222M025ST

Part Overview

The SXR222M025ST is a 2200 µF, 25 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in radial, can package configuration. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and production continuity. The part serves general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Capacitance	2200	µF	Primary electrical specification; must match exactly
Voltage Rating	25	V	Critical safety and reliability parameter; must match or exceed
Tolerance	±20%	%	Acceptable variation range; must be equivalent or tighter
Polarization	Polar	—	Determines circuit orientation requirements; must match
Package Type	Radial, Can	—	Physical form factor; must be compatible with PCB layout
Lead Spacing	5.00	mm	PCB footprint compatibility; must match
Mounting Type	Through Hole	—	Assembly process compatibility; must match
Operating Temperature Range	-40 to 105	°C	Environmental performance specification; substitute must cover or exceed

Substitute Part Grouping Explanation

Substitution of the SXR222M025ST is based on strict electrical and mechanical parameter matching. The following criteria determine compatibility:

Mandatory Matching Parameters:

Capacitance value: 2200 µF (exact match required)
Voltage rating: 25 V (substitute must be rated for 25 V or higher)
Polarization: Polar (electrolytic type must be maintained)
Lead spacing: 5.00 mm (0.197 inches)
Package configuration: Radial, Can through-hole

Performance Considerations:

Operating temperature range must encompass -40°C to 105°C minimum
Tolerance of ±20% is acceptable for substitute parts
Physical dimensions (diameter and height) must accommodate existing PCB mounting locations

The substitute part 25ZLH2200MEFC12.5X30 from Rubycon meets all mandatory electrical parameters and maintains mechanical compatibility through identical lead spacing and through-hole mounting configuration.

Parameter Comparison

Parameter	SXR222M025ST (CDE)	25ZLH2200MEFC12.5X30 (Rubycon)	Match Status
Capacitance	2200 µF	2200 µF	Exact Match
Voltage Rating	25 V	25 V	Exact Match
Tolerance	±20%	±20%	Exact Match
Polarization	Polar	Polar	Exact Match
Lead Spacing	5.00 mm	5.00 mm	Exact Match
Mounting Type	Through Hole	Through Hole	Exact Match
Package Type	Radial, Can	Radial, Can	Exact Match
Operating Temperature	-40°C to 105°C	-40°C to 105°C	Exact Match
Lifetime @ 105°C	4000 Hrs	10000 Hrs	Substitute Exceeds
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Exact Match
Product Status	Obsolete	Active	Substitute Available

Engineering Selection Recommendations

The 25ZLH2200MEFC12.5X30 from Rubycon is a direct electrical and mechanical substitute for the obsolete SXR222M025ST. Selection is based on the following engineering criteria:

Compliance & Certification: Both parts maintain ROHS3 compliance and carry identical ECCN (EAR99) and HTSUS (8532.22.0020) classifications, ensuring regulatory continuity in procurement and deployment.

Product Availability: The SXR222M025ST is classified as obsolete with limited inventory (677 pcs). The Rubycon substitute is active production status with substantial inventory availability (24,839 pcs), ensuring long-term supply chain reliability.

Electrical Equivalence: All critical electrical parameters—capacitance, voltage rating, tolerance, and operating temperature range—are identical between the main part and substitute. The Rubycon part demonstrates superior lifetime performance (10,000 hours at 105°C versus 4,000 hours), providing enhanced reliability margin without compromising circuit function.

Physical Compatibility: Identical lead spacing (5.00 mm) and through-hole radial can package configuration ensure direct PCB footprint compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the 25ZLH2200MEFC12.5X30 be used as a direct replacement for SXR222M025ST in existing designs?

A: Yes. Both parts share identical capacitance (2200 µF), voltage rating (25 V), tolerance (±20%), lead spacing (5.00 mm), and through-hole radial can package configuration. No circuit redesign or PCB layout modification is required.

Q: What is the significance of the different physical dimensions between the two parts?

A: The SXR222M025ST has a diameter of 12.00 mm and height of 40.00 mm. The Rubycon substitute has a diameter of 12.50 mm and height of 32.00 mm. While dimensions differ, the identical 5.00 mm lead spacing ensures PCB footprint compatibility. Physical clearance around the component should be verified in space-constrained applications.

Q: Why does the Rubycon part have a longer lifetime specification?

A: The 25ZLH2200MEFC12.5X30 is rated for 10,000 hours at 105°C compared to 4,000 hours for the CDE part. This reflects different manufacturing processes and material formulations. The extended lifetime provides additional reliability margin and does not affect circuit compatibility.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications. Regulatory documentation and supply chain requirements remain unchanged when substituting the Rubycon part.

Q: What should be verified before implementing this substitution in production?

A: Verify that available clearance around the component accommodates the slightly larger diameter (12.50 mm versus 12.00 mm) and shorter height (32.00 mm versus 40.00 mm) of the Rubycon part. Confirm that ripple current and impedance characteristics of the substitute are acceptable for the specific application circuit.

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