Equivalent & Substitute Parts for 8SW100M

Part Overview

The Rubycon 8SW100M is a 100 µF, 8 V aluminum-polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. The part operates across a temperature range of -55°C to 105°C with a 2000-hour lifetime rating at 105°C, making it suitable for general-purpose filtering and energy storage applications in compact form factors.

Substiute Parts

8SW100M

RubyconIn Stock: 8738SW100M Datasheet

Current PartRFQ

EEF-CX1A101R

Panasonic Electronic ComponentsIn Stock: 17711EEF-CX1A101R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 8SW100M is determined by the following critical parameters:

• Capacitance Value: Must be 100 µF (±20% tolerance acceptable)
• Package Footprint: Must be 2917 (7343 Metric) for PCB compatibility
• Voltage Rating: Minimum 8 V; higher ratings are acceptable for derating applications
• Type: Aluminum-polymer construction required for ESR and ripple current characteristics
• Mounting: Surface mount configuration mandatory
• Temperature Range: Must support -55°C to 105°C operation
• Compliance: RoHS3 compliance required for regulatory alignment

The Panasonic EEF-CX1A101R meets these substitution criteria with identical capacitance, package, and operating temperature specifications while providing a higher voltage rating and comparable lifetime performance.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX1A101R serves as a direct functional substitute for the obsolete Rubycon 8SW100M. Both components maintain identical capacitance values, package footprints, and operating temperature specifications. The EEF-CX1A101R provides a higher voltage rating (10 V versus 8 V), which accommodates circuit designs with voltage margin requirements. The increased ESR (40 mOhm versus 18 mOhm) and higher ripple current capability (3.2 A versus 2.5 A) reflect manufacturing differences between manufacturers but remain within acceptable parameters for general-purpose applications.

Both parts maintain ROHS3 compliance and equivalent lifetime ratings at 105°C. The EEF-CX1A101R is available in higher inventory quantities and is supplied in Tape & Reel packaging, facilitating automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX1A101R directly replace the 8SW100M on existing PCBs?

A: Yes. Both components use the identical 2917 (7343 Metric) package with matching footprint dimensions (7.30mm × 4.30mm). No PCB layout modifications are required.

Q: What is the significance of the voltage rating difference (8 V versus 10 V)?

A: The EEF-CX1A101R's higher voltage rating provides additional derating margin in circuits designed for 8 V operation. This does not affect functionality in 8 V applications and may improve reliability through reduced electrical stress.

Q: How do the ESR values affect circuit performance?

A: The EEF-CX1A101R exhibits higher ESR (40 mOhm versus 18 mOhm). In high-frequency ripple current applications, this results in increased heat dissipation. For general-purpose filtering applications, this difference is typically negligible.

Q: Are both parts suitable for new designs?

A: The 8SW100M is obsolete and unsuitable for new designs. The EEF-CX1A101R carries a "Not For New Designs" status, indicating limited long-term availability. For new product development, consultation with component suppliers for current-generation alternatives is recommended.

Q: What packaging options are available for the EEF-CX1A101R?

A: The EEF-CX1A101R is supplied in Tape & Reel (TR) packaging, optimized for automated surface mount assembly processes.