SPA101M04B Equivalent & Substitute Parts Reference

Part Overview

The SPA101M04B is a 100 µF, 4 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) surface mount package. This component is classified as obsolete, indicating it is no longer in active production. The identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for applications requiring this capacitance and voltage rating.

Substiute Parts

SPA101M04B

Cornell Dubilier Electronics (CDE)In Stock: 1130SPA101M04B Datasheet

Current PartRFQ

EEF-SX0G101ER

Panasonic Electronic ComponentsIn Stock: 7223EEF-SX0G101ER Datasheet

DirectRFQ

EEF-SX0G101R

Panasonic Electronic ComponentsIn Stock: 3702EEF-SX0G101R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPA101M04B are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Mandatory Matching Parameters:

• Capacitance: 100 µF (exact match required)
• Voltage Rating: 4 V (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Polymer (exact match required)
• Tolerance: ±20% or tighter (equal or superior)

Compatible Electrical Characteristics:

• ESR: 9 mOhm (matching value)
• RoHS Compliance: ROHS3 Compliant (regulatory alignment)

The substitute parts identified are manufactured by Panasonic Electronic Components and belong to the SP-Cap SX series. Both substitute parts meet all mandatory matching criteria and maintain electrical performance specifications compatible with the original SPA101M04B design requirements.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: EEF-SX0G101ER is the recommended substitute. This part is in active production status, ensuring long-term availability and supply chain stability. It maintains all mandatory electrical and mechanical parameters identical to the SPA101M04B while offering enhanced performance characteristics: extended lifetime rating (2000 Hrs @ 105°C versus 1000 Hrs), wider operating temperature range (-55°C to 105°C), and increased ripple current capability (6.3 A @ 100 kHz). ROHS3 compliance and REACH unaffected status confirm regulatory alignment for current manufacturing standards.

For Existing Design Maintenance: EEF-SX0G101R provides functional equivalence with identical core electrical specifications. However, this part carries a "Not For New Designs" status, indicating it is in transition phase. Selection of this part should be limited to replacement scenarios in established production lines where supply continuity is already established.

Physical Compatibility Note: Both Panasonic substitutes have a maximum seated height of 0.079" (2.00 mm) compared to the original SPA101M04B at 0.075" (1.90 mm). This 0.004" (0.10 mm) difference is within typical PCB assembly tolerances and does not affect mechanical fit in standard 2917 (7343 Metric) footprints.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0G101ER be used as a direct replacement for SPA101M04B without PCB modification?

A: Yes. Both components share identical capacitance (100 µF), voltage rating (4 V), tolerance (±20%), package designation (2917 / 7343 Metric), and mounting type (Surface Mount). The PCB footprint and land pattern are compatible. The 0.004" height difference falls within standard assembly tolerances.

Q: What is the difference between EEF-SX0G101ER and EEF-SX0G101R?

A: Both parts are electrically and mechanically identical with matching capacitance, voltage, ESR, and package specifications. The primary distinction is product status: EEF-SX0G101ER is Active (recommended for new designs), while EEF-SX0G101R is Not For New Designs (suitable for maintenance only). Both offer 2000 Hrs @ 105°C lifetime rating.

Q: Why does the SPA101M04B have a shorter lifetime rating than the Panasonic substitutes?

A: The SPA101M04B is rated at 1000 Hrs @ 105°C, while both Panasonic alternatives provide 2000 Hrs @ 105°C. This reflects the obsolete status of the CDE part and represents an improvement in the substitute options. The extended lifetime does not affect direct substitution compatibility.

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

A: All three parts are ROHS3 Compliant. The Panasonic substitutes additionally carry REACH Unaffected status, confirming compliance with current European chemical regulations. This represents an advantage for applications subject to REACH requirements.

Q: What is the significance of the ripple current rating difference?

A: The SPA101M04B is rated for 3 A @ 100 kHz ripple current, while EEF-SX0G101ER supports 6.3 A @ 100 kHz. This indicates the Panasonic substitute can handle higher AC current stress without exceeding thermal limits. For applications operating at or below 3 A ripple current, both parts are functionally equivalent.

Q: Can I use these parts interchangeably in existing production?

A: Yes, for applications currently using SPA101M04B. The Panasonic substitutes meet all mandatory electrical and mechanical specifications. Verify that your assembly process accommodates the maximum 0.079" seated height. No circuit design changes are required.

Q: What is the operating temperature range difference?

A: SPA101M04B operates from -40°C to 105°C, while both Panasonic substitutes extend the lower limit to -55°C. This provides additional margin for cold environment applications. For standard operating ranges, this difference is not a limiting factor.