SXR221M010ST

Part Overview

The SXR221M010ST is a 220 µF, 10 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can package configuration. The part is classified as obsolete, requiring identification of functional alternatives for ongoing design requirements. Finding substitute components ensures design continuity and component availability for production environments where the original part is no longer obtainable.

Key Parameters

Parameter	Value
Capacitance	220 µF
Tolerance	±20%
Voltage - Rated	10 V
ESR @ 120 Hz	1.15 Ω
Lifetime @ 105°C	3000 hrs
Operating Temperature Range	-40°C to 105°C
Ripple Current @ 120 Hz	180 mA
Ripple Current @ 100 kHz	300 mA
Package Type	Radial, Can (Through Hole)
Lead Spacing	0.138" (3.50 mm)
Diameter	0.315" (8.00 mm)
Height - Seated (Max)	0.433" (11.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SXR221M010ST are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Capacitance: 220 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: Minimum 10 V (equal or higher acceptable)
Package Type: Radial, Can, Through Hole (exact match required)
Lead Spacing: 0.138" (3.50 mm) (exact match required)
Diameter: 0.315" (8.00 mm) (exact match required)

Allowable Parameter Variations:

Voltage Rating: Substitutes may have higher voltage ratings (16 V or 25 V) while maintaining circuit compatibility
Height - Seated: Moderate variations permitted if mounting clearance allows
Lifetime @ 105°C: Variations acceptable; higher values preferred for reliability
Ripple Current: Variations acceptable; sufficient capacity for circuit requirements
ESR/Impedance: Variations acceptable within circuit design tolerances

All substitute parts listed maintain identical capacitance, tolerance, and mechanical compatibility with the original SXR221M010ST footprint.

Parameter Comparison

Parameter	SXR221M010ST (Original)	25ML220MEFC8X9 (Rubycon)	EEU-EB1E221S (Panasonic)	UHE1E221MPD (Nichicon)	UPW1C221MPD (Nichicon)	UPW1E221MPD (Nichicon)	EEU-FM1E221 (Panasonic)
Capacitance	220 µF	220 µF	220 µF	220 µF	220 µF	220 µF	220 µF
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	10 V	25 V	25 V	25 V	16 V	25 V	25 V
Lifetime @ 105°C	3000 hrs	5000 hrs	5000 hrs	7000 hrs	3000 hrs	3000 hrs	3000 hrs
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C
Ripple Current @ 120 Hz	180 mA	190 mA	125 mA	448 mA	360.75 mA	360.75 mA	665 mA
Lead Spacing	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)
Diameter	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)	0.315" (8.00 mm)
Height - Seated (Max)	0.433" (11.00 mm)	0.413" (10.50 mm)	0.492" (12.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)	0.453" (11.50 mm)	0.512" (13.00 mm)
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Active Status Components (Recommended for New Designs):

EEU-EB1E221S (Panasonic): Actively supported product status ensures long-term component availability and supply chain stability. ROHS3 compliant and REACH unaffected. Lifetime rating of 5000 hours @ 105°C provides extended service life relative to original specification.
EEU-FM1E221 (Panasonic): Active product status with ROHS3 compliance and REACH unaffected status. Enhanced ripple current capability (665 mA @ 120 Hz) and lower impedance (56 mOhms) provide performance margin above original design requirements.

Not For New Designs (Legacy Production Use):

UHE1E221MPD (Nichicon): Superior lifetime rating of 7000 hours @ 105°C. Highest ripple current capacity (448 mA @ 120 Hz) among alternatives. REACH affected status noted. Suitable for existing production continuity where new design transitions are not feasible.
UPW1C221MPD (Nichicon): 16 V rating matches minimum substitution requirement with extended temperature range (-55°C to 105°C). Not recommended for new designs due to legacy status.
UPW1E221MPD (Nichicon): 25 V rating with enhanced ripple current (360.75 mA @ 120 Hz) and extended temperature range (-55°C to 105°C). Legacy status noted.
25ML220MEFC8X9 (Rubycon): 25 V rating with 5000-hour lifetime. Not for new designs status. Mechanical height reduced to 10.50 mm, providing space savings in constrained layouts.

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor as a substitute for the 10 V SXR221M010ST? A: Yes. Higher voltage ratings are functionally equivalent in circuits designed for lower voltages. The 25 V rated substitutes (EEU-EB1E221S, UHE1E221MPD, UPW1E221MPD, EEU-FM1E221) operate safely in 10 V applications. No design modification required.

Q: What is the difference between the upgrade and similar part categories? A: Upgrade parts feature higher voltage ratings (25 V vs. 10 V original) or extended lifetime specifications, providing design margin and reliability enhancement. Similar parts (EEU-FM1E221) match the 25 V voltage rating while maintaining equivalent mechanical and electrical characteristics. Both categories are functionally substitutable.

Q: Are all substitute parts mechanically interchangeable with the original SXR221M010ST? A: All listed substitutes maintain identical lead spacing (0.138" / 3.50 mm) and can diameter (0.315" / 8.00 mm), ensuring PCB footprint compatibility. Height variations range from 10.50 mm to 13.00 mm compared to 11.00 mm original. Verify available mounting clearance for parts exceeding original height by 1.50 mm (EEU-FM1E221).

Q: Which substitute offers the best performance characteristics? A: Performance depends on application requirements. EEU-FM1E221 delivers highest ripple current (665 mA @ 120 Hz) and lowest impedance (56 mOhms). UHE1E221MPD provides longest lifetime (7000 hours @ 105°C). EEU-EB1E221S balances active product status with 5000-hour lifetime rating. Select based on specific circuit ripple current demands and expected service life.

Q: What role does RoHS and REACH compliance play in component selection? A: All listed substitutes maintain ROHS3 compliance, meeting electronic equipment environmental regulations. Most are REACH unaffected or compliant. UHE1E221MPD carries REACH affected status; verify applicability in your regulatory environment. For new designs, prioritize components with active status (EEU-EB1E221S, EEU-FM1E221) to ensure sustained compliance and supply availability.

Q: Can substitutes with 16 V ratings (UPW1C221MPD) be used instead of 25 V options? A: Yes, if the circuit operates at voltages not exceeding 16 V. The UPW1C221MPD maintains the minimum required voltage rating above the original 10 V specification. However, 25 V rated alternatives provide greater design margin and are generally preferred unless space constraints mandate lower-profile components.

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