Rubycon 4SXB100M Equivalent & Substitute Parts

Part Overview

The Rubycon 4SXB100M is a 100 µF, 4 V aluminum polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. The part delivers 13 mOhm ESR with a 2000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring compact form factors and low impedance characteristics.

Substiute Parts

4SXB100M

RubyconIn Stock: 10414SXB100M Datasheet

Current PartRFQ

EEF-CX0J101R

Panasonic Electronic ComponentsIn Stock: 12928EEF-CX0J101R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 4SXB100M is determined by strict alignment of the following parameters:

• Capacitance Value: 100 µF (exact match required)
• Package Type: 2917 (7343 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount (PCB assembly compatibility)
• Operating Temperature Range: -55°C ~ 105°C (functional envelope)
• Type: Aluminum Polymer (electrical characteristics and performance profile)
• Tolerance: ±20% (specification compliance)

The Panasonic EEF-CX0J101R meets all substitution criteria. While the rated voltage is higher (6.3 V versus 4 V) and ESR is slightly elevated (15 mOhm versus 13 mOhm), these parameters remain within acceptable substitution boundaries for general-purpose applications. The higher voltage rating provides additional design margin without compromising circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0J101R is a direct substitute for the obsolete Rubycon 4SXB100M. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part is currently in active production with substantial inventory availability (12,917 pcs), ensuring supply chain continuity.

The higher voltage rating of the EEF-CX0J101R (6.3 V versus 4 V) is compatible with 4 V circuit designs and provides additional operational margin. The slightly higher ESR (15 mOhm versus 13 mOhm) remains within acceptable performance parameters for general-purpose applications. The enhanced ripple current capability (5.1 A versus 3 A at 100 kHz) offers improved performance headroom.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0J101R replace the Rubycon 4SXB100M in existing designs?

A: Yes. Both components share identical capacitance (100 µF), tolerance (±20%), package (2917/7343 Metric), operating temperature range (-55°C ~ 105°C), and lifetime rating (2000 Hrs @ 105°C). Physical dimensions and mounting footprints are identical, enabling direct PCB substitution.

Q: Why is the voltage rating different between the two parts?

A: The Panasonic substitute has a 6.3 V rating compared to the Rubycon's 4 V rating. Higher voltage-rated capacitors are acceptable substitutes in lower-voltage applications and provide additional design margin without affecting circuit operation.

Q: Are there any compliance differences between these parts?

A: No. Both components are ROHS3 compliant and REACH unaffected, meeting identical regulatory standards.

Q: What is the impact of the ESR difference?

A: The Panasonic part has 15 mOhm ESR versus the Rubycon's 13 mOhm. This 2 mOhm difference is negligible for general-purpose applications and does not affect functional performance in typical circuit designs.

Q: Is the Panasonic part readily available?

A: Yes. The EEF-CX0J101R is in active production status with 12,917 pcs currently in stock, ensuring reliable supply availability compared to the obsolete Rubycon part.