SXR221M063ST

Part Overview

The SXR221M063ST is a 220 µF, 63 V aluminum electrolytic capacitor in radial through-hole package manufactured by Cornell Dubilier Electronics (CDE). This product is classified as obsolete, necessitating the identification of equivalent and substitute alternatives for continued system support and design updates. The component serves general-purpose applications requiring moderate capacitance and voltage ratings in a compact radial form factor.

Key Parameters

Parameter	Value
Capacitance	220 µF
Voltage Rating	63 V
Tolerance	±20%
Operating Temperature	-40°C to 105°C
ESR @ 120 Hz	480 mOhm
Lifetime @ 105°C	4000 Hours
Lead Spacing	5.00 mm (0.197")
Case Diameter	12.00 mm (0.472")
Height	25.00 mm (0.984")
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SXR221M063ST are evaluated based on critical electrical and mechanical compatibility parameters. All candidates must maintain the core capacitance value of 220 µF and operate within the specified voltage, temperature, and mechanical envelope constraints.

Critical Substitution Parameters:

Capacitance: 220 µF (exact match required)
Tolerance: ±20% (standard tolerance class)
Voltage Rating: minimum 63 V (equal or higher acceptable)
Lead Spacing: 5.00 mm (circuit board compatibility)
Mounting Type: Through Hole (mechanical fit requirement)
Package Type: Radial, Can (form factor constraint)
Operating Temperature Range: -40°C to 105°C minimum
Polarization: Polar (functional requirement)
RoHS Compliance: ROHS3 Compliant (regulatory requirement)

Two substitute parts meet these criteria: EKZE101ELL221MK25S (Chemi-Con, upgrade to 100 V rating) and UPW1J221MPD (Nichicon, same 63 V rating with improved lifetime specifications).

Parameter Comparison

Parameter	SXR221M063ST (Original)	EKZE101ELL221MK25S (Upgrade)	UPW1J221MPD (Direct Alternative)
Manufacturer	Cornell Dubilier Electronics	Chemi-Con	Nichicon
Product Status	Obsolete	Active	Active
Capacitance	220 µF	220 µF	220 µF
Tolerance	±20%	±20%	±20%
Voltage Rating	63 V	100 V	63 V
Operating Temperature	-40°C to 105°C	-40°C to 105°C	-55°C to 105°C
Lifetime @ 105°C	4000 Hours	5000 Hours	5000 Hours
Lead Spacing	5.00 mm	5.00 mm	5.00 mm
Case Diameter	12.00 mm	12.50 mm	10.00 mm
Height	25.00 mm	26.50 mm	20.00 mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can

Engineering Selection Recommendations

EKZE101ELL221MK25S (Chemi-Con KZE Series): This substitute provides an electrical upgrade path with increased voltage rating (100 V versus 63 V), extended operational lifetime (5000 hours versus 4000 hours at 105°C), and improved ripple current handling (1.25 A at 100 kHz versus 890 mA). The component maintains ROHS3 compliance and identical lead spacing for direct PCB compatibility. Physical envelope differences (12.50 mm diameter, 26.50 mm height) may require mechanical clearance verification in space-constrained layouts.

UPW1J221MPD (Nichicon UPW Series): This substitute maintains identical electrical specifications at 63 V and 220 µF with significantly enhanced operational lifetime (5000 hours versus 4000 hours), expanded lower temperature operation (-55°C floor versus -40°C), and improved ripple current capacity (885 mA at 100 kHz). ROHS3 compliance is confirmed. The smaller physical envelope (10.00 mm diameter, 20.00 mm height) accommodates tighter spatial constraints while preserving lead spacing compatibility.

Both substitutes hold active product status from established manufacturers with ROHS3 certification, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can EKZE101ELL221MK25S be used in place of SXR221M063ST in all applications? A: EKZE101ELL221MK25S is electrically compatible with identical capacitance and tolerance. The 100 V rating provides safety margin in 63 V circuits. Physical dimensions differ (12.50 mm diameter, 26.50 mm height versus 12.00 mm, 25.00 mm): verify clearance in confined spaces before substitution.

Q: What are the advantages of UPW1J221MPD over the original SXR221M063ST? A: UPW1J221MPD maintains identical 63 V electrical specifications while providing extended lifetime (5000 hours versus 4000 hours at 105°C), expanded temperature operation (-55°C to 105°C), and superior ripple current handling. The compact form factor (10.00 mm diameter, 20.00 mm height) reduces mounting footprint.

Q: Are physical dimension differences between substitutes critical? A: Lead spacing remains constant at 5.00 mm, ensuring direct PCB hole compatibility. Case diameter and height variations may affect mechanical fit: EKZE101ELL221MK25S requires slightly more height clearance; UPW1J221MPD requires less. Verify available space in the target application.

Q: Do substitutes maintain the same electrical performance characteristics? A: Both substitutes maintain 220 µF capacitance and ±20% tolerance. Ripple current specifications improve in both alternatives, and operational lifetimes extend to 5000 hours. ESR and impedance values differ but remain within functional parameters for general-purpose applications.

Q: Are all substitutes RoHS3 compliant? A: Both EKZE101ELL221MK25S and UPW1J221MPD hold ROHS3 compliance status, matching the original component's regulatory requirements.

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