Panasonic EEF-LL0D181R Equivalent & Substitute Parts

Part Overview

The Panasonic EEF-LL0D181R is a 180 µF, 2 V aluminum polymer surface mount capacitor in the 2917 (7343 Metric) package. This component is classified as Obsolete, indicating it is no longer in active production. For new designs and ongoing production requiring equivalent functionality, substitute parts from the active SP-Cap SX series are available with improved electrical characteristics and extended operational lifetime.

Substiute Parts

EEF-LL0D181R

Panasonic Electronic ComponentsIn Stock: 1113EEF-LL0D181R Datasheet

Current PartRFQ

EEF-SX0D181ER

Panasonic Electronic ComponentsIn Stock: 1130EEF-SX0D181ER Datasheet

SimilarRFQ

EEF-SX0D181R

Panasonic Electronic ComponentsIn Stock: 4207EEF-SX0D181R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the EEF-LL0D181R is determined by strict equivalence in the following parameters:

• Capacitance: 180 µF (exact match required)
• Voltage Rating: 2 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Footprint: 0.287" L x 0.169" W (7.30mm x 4.30mm) (exact match required)

The substitute parts identified—EEF-SX0D181ER and EEF-SX0D181R—meet all mandatory electrical and mechanical parameters. These parts belong to the SP-Cap SX series and offer improved performance characteristics including reduced ESR and extended lifetime ratings compared to the obsolete LL series.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the EEF-LL0D181R, the EEF-SX0D181ER is the primary substitute. This part is classified as Active and carries ROHS3 compliance and REACH Unaffected status, making it suitable for new designs and ongoing production. The EEF-SX0D181ER provides superior electrical performance with 50% reduction in ESR (9 mOhm versus 18 mOhm) and doubled operational lifetime (2000 Hrs @ 105°C versus 1000 Hrs @ 105°C).

The EEF-SX0D181R is functionally equivalent but carries a "Not For New Designs" status. This part may be used for legacy system maintenance or repair applications where existing inventory is available, but should not be selected for new product development.

Both substitute parts maintain identical electrical specifications (180 µF, 2 V, ±20% tolerance) and mechanical compatibility (2917 package, surface mount) with the original EEF-LL0D181R. The maximum seated height increases by 0.004" (0.10mm), which is negligible for most PCB layout applications.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0D181ER and EEF-SX0D181R be used interchangeably with EEF-LL0D181R?

A: Both parts are electrically and mechanically compatible. They share identical capacitance (180 µF), voltage rating (2 V), tolerance (±20%), and package footprint (2917 / 7343 Metric). The primary difference is product status: EEF-SX0D181ER is Active, while EEF-SX0D181R is Not For New Designs.

Q: What is the impact of the 0.004" height difference between the main part and substitutes?

A: The EEF-LL0D181R has a maximum seated height of 0.075" (1.90mm), while both EEF-SX substitutes measure 0.079" (2.00mm). This 0.004" (0.10mm) difference is within standard PCB assembly tolerances and does not affect component placement or board clearance in typical applications.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both EEF-SX0D181ER and EEF-SX0D181R are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic components in most markets.

Q: Why does the EEF-SX0D181R carry a "Not For New Designs" status?

A: This designation indicates the part is in transition and may have limited long-term availability. For new product development, EEF-SX0D181ER (Active status) is the recommended choice.

Q: What are the performance improvements in the substitute parts?

A: The EEF-SX series offers 50% lower ESR (9 mOhm versus 18 mOhm) and doubled lifetime rating (2000 Hrs @ 105°C versus 1000 Hrs @ 105°C). The operating temperature range is also extended to -55°C ~ 105°C, providing greater thermal margin.

Q: Is the packaging format different between the main part and substitutes?

A: The EEF-LL0D181R is supplied in standard packaging, while EEF-SX0D181ER is supplied in Tape & Reel (TR) format. EEF-SX0D181R packaging format is also Tape & Reel (TR). Tape & Reel packaging is standard for high-volume surface mount assembly and does not affect component functionality.