Equivalent & Substitute Parts for SXR122M063ST

Part Overview

The SXR122M063ST is a 1200 µF, 63 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and design continuity. The part operates across a temperature range of -40°C to 105°C and is rated for 5000 hours at 105°C with general-purpose applications. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Substiute Parts

SXR122M063ST

Cornell Dubilier Electronics (CDE)In Stock: 925SXR122M063ST Datasheet

Current PartRFQ

128KBM063MLAG

Cornell Dubilier / Illinois CapacitorIn Stock: 1086128KBM063MLAG Datasheet

DirectRFQ

EKYB630ELL122MM25S

Chemi-ConIn Stock: 4968EKYB630ELL122MM25S Datasheet

DirectRFQ

EKZN630ELL122MM25S

Chemi-ConIn Stock: 1288EKZN630ELL122MM25S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SXR122M063ST is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Capacitance: 1200 µF (exact match required)
• Voltage Rating: 63 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Operating Temperature Range: -40°C to 105°C (minimum requirement)

Mechanical Compatibility Criteria:

• Package Type: Radial, Can (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.295" (7.50mm) (exact match required)
• Can Diameter: 0.709" (18.00mm) (exact match required)
• Height: Must not exceed 1.575" (40.00mm) to ensure PCB clearance

Compliance Criteria:

• RoHS3 Compliance (required for all substitutes)

All three substitute parts meet these criteria. The substitute parts are grouped as direct equivalents based on identical electrical ratings and mechanical dimensions, with variations in ESR, lifetime ratings, and ripple current capabilities that remain within acceptable operational parameters for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are direct electrical and mechanical equivalents to the SXR122M063ST. Selection among these substitutes is based on product status, compliance certifications, and availability:

128KBM063MLAG (Cornell Dubilier / Illinois Capacitor): This part maintains manufacturer continuity with the original SXR122M063ST, both sourced from Cornell Dubilier or affiliated manufacturers. It carries Active product status with ROHS3 compliance and REACH Unaffected designation. The part offers extended lifetime (10000 hours at 105°C versus 5000 hours) and improved ripple current ratings. Height is reduced to 1.260" (32.00mm), providing additional PCB clearance. This option is suitable for applications requiring manufacturer consistency and extended operational life.

EKYB630ELL122MM25S (Chemi-Con): This Chemi-Con KYB series part is Active with ROHS3 compliance. It provides the most compact form factor at 1.043" (26.50mm) height, maximizing available PCB space. The part delivers the highest ripple current capability at 120 Hz (1.68 A) and 100 kHz (2.8 A). Inventory availability is highest among all substitutes at 4925 pieces. This option is optimal for space-constrained designs and applications requiring maximum ripple current handling.

EKZN630ELL122MM25S (Chemi-Con): This Chemi-Con KZN series part is Active with ROHS3 compliance and REACH Unaffected status. It offers the highest ripple current ratings across both frequency bands (1.758 A at 120 Hz and 2.93 A at 100 kHz). Height matches the EKYB630ELL122MM25S at 1.043" (26.50mm). This option is recommended for applications with demanding ripple current requirements or thermal stress conditions.

All substitutes are suitable for direct replacement in general-purpose applications. Selection should prioritize Active product status and compliance certifications for long-term supply chain security.

Frequently Asked Questions (FAQ)

Q: Can the SXR122M063ST be directly replaced with any of these substitute parts?

A: Yes. All three substitute parts meet the electrical and mechanical compatibility requirements. They share identical capacitance (1200 µF), voltage rating (63 V), tolerance (±20%), polarization (Polar), package type (Radial, Can), mounting type (Through Hole), lead spacing (0.295" / 7.50mm), and can diameter (0.709" / 18.00mm). All operate across the same temperature range (-40°C to 105°C) and comply with ROHS3 standards.

Q: What are the physical differences between the substitute parts?

A: The primary physical difference is height. The SXR122M063ST measures 1.575" (40.00mm) maximum height. The 128KBM063MLAG is 1.260" (32.00mm), while both the EKYB630ELL122MM25S and EKZN630ELL122MM25S are 1.043" (26.50mm). All substitute parts are shorter than the original, providing additional PCB clearance. The reduced height does not affect electrical performance or compatibility.

Q: How do the electrical performance characteristics differ?

A: The SXR122M063ST has an ESR of 90 mOhm at 120 Hz and a lifetime rating of 5000 hours at 105°C. The 128KBM063MLAG increases ESR to 152 mOhm but extends lifetime to 10000 hours. The Chemi-Con parts (EKYB630ELL122MM25S and EKZN630ELL122MM25S) do not specify ESR but provide 10000-hour lifetime ratings. All substitute parts deliver equal or superior ripple current capabilities compared to the original part across both low-frequency (120 Hz) and high-frequency (100 kHz) ranges.

Q: Which substitute part should be selected for new designs?

A: For new designs, select from the Active product status parts: 128KBM063MLAG, EKYB630ELL122MM25S, or EKZN630ELL122MM25S. The EKYB630ELL122MM25S or EKZN630ELL122MM25S are preferred due to highest inventory availability and superior ripple current ratings. The EKZN630ELL122MM25S offers the highest ripple current performance for thermally demanding applications.

Q: Are there any compliance or certification differences?

A: All parts are ROHS3 compliant. The 128KBM063MLAG and EKZN630ELL122MM25S carry REACH Unaffected designation, providing additional regulatory assurance. The EKYB630ELL122MM25S does not specify REACH status but maintains ROHS3 compliance. For applications with strict regulatory requirements, the 128KBM063MLAG or EKZN630ELL122MM25S are recommended.

Q: What is the inventory status of each substitute?

A: The EKYB630ELL122MM25S has the highest inventory at 4925 pieces. The EKZN630ELL122MM25S has 1196 pieces available. The 128KBM063MLAG has 1006 pieces in stock. The original SXR122M063ST has 856 pieces remaining. For applications requiring immediate availability or high-volume procurement, the EKYB630ELL122MM25S is the optimal choice.