SXR103M010ST Equivalent & Substitute Parts Reference

Part Overview

The SXR103M010ST is a 10000 µF, 10 V aluminum electrolytic capacitor in radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production support and design continuity. The SXR series represents legacy technology; active alternatives from current manufacturers provide improved performance characteristics including extended lifetime ratings and lower equivalent series resistance.

Key Parameters

Parameter	Value	Substitution Relevance
Capacitance	10000 µF	Must match exactly for direct substitution
Voltage Rating	10 V	Direct substitutes must match; upgrades to 16 V acceptable
Tolerance	±20%	Must match or be tighter for compatibility
Package Type	Radial, Can	Must match for through-hole mounting compatibility
Lead Spacing	0.295" (7.50 mm)	Critical for PCB footprint compatibility
Diameter	0.709" (18.00 mm)	Physical fit constraint
Height	1.575" (40.00 mm) maximum	Space envelope constraint; shorter alternatives acceptable
Operating Temperature	-40°C to 105°C	Must support application temperature range
Polarization	Polar	Must match for circuit polarity requirements
Mounting Type	Through Hole	Must match for assembly compatibility
RoHS Status	ROHS3 Compliant	Regulatory requirement for most applications

Substitute Part Grouping Explanation

Substitution logic for the SXR103M010ST is based on strict electrical and mechanical parameter matching:

Direct Electrical Equivalents (10 V, 10000 µF): Parts maintaining identical capacitance and voltage rating with compatible physical dimensions and lead spacing. These include 109KBM010M (Cornell Dubilier/Illinois Capacitor), EKYB100ELL103MMN3S (Chemi-Con), EKZN100ELL103MMN3S (Chemi-Con), UHE1A103MHD6 (Nichicon), and UHE1A103MHD (Nichicon). All share the 0.295" lead spacing and 0.709" diameter requirement.

Voltage Upgrade Alternatives (16 V, 10000 µF): Parts with elevated voltage rating (UHE1C103MHD and UPW1C103MHD, both Nichicon) are electrically compatible in 10 V circuits due to voltage derating principles. These provide enhanced reliability margins and are acceptable substitutes where physical height constraints permit.

Substitution Criteria:

Capacitance: 10000 µF (exact match required)
Voltage: 10 V minimum (16 V upgrades acceptable)
Lead spacing: 0.295" (7.50 mm) mandatory
Package: Radial, Can through-hole only
Diameter: 0.709" (18.00 mm) fixed
Height: ≤1.575" (40.00 mm) maximum
Polarization: Polar (required)
Temperature range: Must support -40°C to 105°C minimum

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Height (Max)	Status	Inventory
SXR103M010ST	Cornell Dubilier	10000 µF	10 V	±20%	5000 Hrs	1.575" (40.00 mm)	Obsolete	889 Pcs
109KBM010M	Cornell Dubilier / Illinois Capacitor	10000 µF	10 V	±20%	8000 Hrs	1.457" (37.00 mm)	Active	769 Pcs
EKYB100ELL103MMN3S	Chemi-Con	10000 µF	10 V	±20%	8000 Hrs	1.299" (33.00 mm)	Active	978 Pcs
EKZN100ELL103MMN3S	Chemi-Con	10000 µF	10 V	±20%	10000 Hrs	1.299" (33.00 mm)	Active	849 Pcs
UHE1A103MHD6	Nichicon	10000 µF	10 V	±20%	8000 Hrs	1.398" (35.50 mm)	Not For New Designs	780 Pcs
UHE1A103MHD	Nichicon	10000 µF	10 V	±20%	8000 Hrs	1.575" (40.00 mm)	Not For New Designs	5142 Pcs
UHE1C103MHD	Nichicon	10000 µF	16 V	±20%	10000 Hrs	1.575" (40.00 mm)	Not For New Designs	5670 Pcs
UPW1C103MHD	Nichicon	10000 µF	16 V	±20%	8000 Hrs	1.575" (40.00 mm)	Not For New Designs	764 Pcs

Engineering Selection Recommendations

For Direct Replacement (10 V Rating):

The 109KBM010M (Cornell Dubilier/Illinois Capacitor, Active status) is the primary recommended substitute. It maintains identical electrical specifications (10000 µF, 10 V, ±20% tolerance) with improved lifetime (8000 hours versus 5000 hours at 105°C) and reduced physical height (37.00 mm versus 40.00 mm), providing superior performance in the same footprint envelope.

The EKYB100ELL103MMN3S (Chemi-Con, Active status) and EKZN100ELL103MMN3S (Chemi-Con, Active status) are functionally equivalent alternatives with further height reduction (33.00 mm). The EKZN variant offers extended lifetime (10000 hours at 105°C), providing maximum reliability for long-term applications.

For Voltage-Upgraded Applications (16 V Rating):

The UHE1C103MHD and UPW1C103MHD (both Nichicon, 16 V rated) are acceptable substitutes where circuit design permits voltage derating. These parts provide enhanced safety margins in 10 V applications. The UHE1C103MHD offers 10000-hour lifetime at 105°C. The UPW1C103MHD extends operating temperature range to -55°C, suitable for wider environmental specifications.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance. The Chemi-Con parts (EKYB and EKZN series) are REACH Unaffected. Nichicon parts carry REACH Affected status, requiring verification against specific supply chain requirements.

Inventory Availability:

Active-status parts (109KBM010M, EKYB100ELL103MMN3S, EKZN100ELL103MMN3S) are recommended for new designs and ongoing production. Parts marked "Not For New Designs" (Nichicon UHE and UPW series) are suitable for legacy system support and field replacement only.

Frequently Asked Questions (FAQ)

Q: Can I use a 16 V rated capacitor in place of the 10 V SXR103M010ST?

A: Yes. A 16 V capacitor is electrically compatible in a 10 V circuit. The higher voltage rating provides additional safety margin and does not affect circuit operation. Physical dimensions must still match the lead spacing (0.295") and diameter (0.709") requirements.

Q: What is the significance of the "Not For New Designs" status on Nichicon parts?

A: This designation indicates the manufacturer has transitioned these series to legacy support. While electrically and mechanically compatible, these parts are not recommended for new product development. Active-status alternatives (109KBM010M, EKYB100ELL103MMN3S, EKZN100ELL103MMN3S) are preferred for new designs.

Q: Does the height difference between substitute parts affect compatibility?

A: No, provided the substitute height does not exceed 1.575" (40.00 mm). Shorter alternatives (33.00 mm to 37.00 mm) fit within the same PCB envelope and improve component density. Verify clearance above the capacitor in your specific assembly.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance. Verify REACH status separately if your supply chain requires REACH Unaffected certification; Chemi-Con parts meet this requirement, while Nichicon parts are REACH Affected.

Q: What is the difference between EKYB100ELL103MMN3S and EKZN100ELL103MMN3S?

A: Both are Chemi-Con 10000 µF, 10 V radial capacitors with identical physical dimensions (33.00 mm height). The EKZN series provides extended lifetime (10000 hours at 105°C versus 8000 hours), making it suitable for applications requiring maximum reliability over extended service periods.

Q: Can I substitute the SXR103M010ST with a different capacitance value?

A: No. Capacitance must remain 10000 µF for direct substitution. Different values alter circuit performance and are not acceptable replacements.

Q: What does ESR (Equivalent Series Resistance) mean for capacitor selection?

A: ESR affects ripple current handling and heat generation. Lower ESR values indicate better high-frequency performance. The provided ESR data (50 mOhm for SXR103M010ST, 61 mOhm for 109KBM010M) shows acceptable performance variation within the same application class.

Q: Is lead spacing critical for PCB compatibility?

A: Yes. The 0.295" (7.50 mm) lead spacing is mandatory for through-hole PCB footprint compatibility. All listed substitutes maintain this spacing. Verify your PCB design before substitution.

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