EEF-UD0D181R Equivalent & Substitute Parts

Part Overview

The EEF-UD0D181R is a 180 µF, 2 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility while meeting current design and compliance requirements.

Substiute Parts

EEF-UD0D181R

Panasonic Electronic ComponentsIn Stock: 908EEF-UD0D181R Datasheet

Current PartRFQ

EEF-CX0G181R

Panasonic Electronic ComponentsIn Stock: 2363EEF-CX0G181R Datasheet

UpgradeRFQ

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 eligibility is determined by the following criteria:

Mandatory Compatibility Parameters:

• Capacitance: 180 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)

Allowable Variation Parameters:

• Voltage Rating: Equal to or greater than 2 V
• ESR: Equal to or less than 15 mOhm
• Lifetime @ Temperature: Equal to or greater than 1000 Hrs @ 105°C
• Operating Temperature Range: Equal to or encompassing -40°C ~ 105°C

Substitute parts are grouped into two categories: upgrade substitutes (higher voltage rating) and similar substitutes (same voltage rating with improved performance characteristics).

Parameter Comparison

Engineering Selection Recommendations

EEF-CX0G181R (Upgrade Substitute): This part is recommended as the primary substitute for new designs. It maintains identical capacitance, tolerance, and package specifications while providing doubled voltage rating (4 V vs. 2 V) and doubled thermal lifetime (2000 Hrs vs. 1000 Hrs @ 105°C). The part is Active status and RoHS3 Compliant, meeting current regulatory requirements. Physical height is reduced (1.90 mm vs. 3.00 mm), providing additional design flexibility.

EEF-SX0D181ER (Similar Substitute): This part is suitable for direct replacement in existing designs. It matches the 2 V voltage rating while improving ESR performance (9 mOhm vs. 15 mOhm) and thermal lifetime (2000 Hrs vs. 1000 Hrs @ 105°C). Active product status and RoHS3 Compliance are confirmed. Operating temperature range is extended to -55°C.

EEF-SX0D181R (Similar Substitute): This part provides equivalent electrical performance to EEF-SX0D181ER but carries "Not For New Designs" status. It is suitable only for legacy system maintenance and repair applications where design changes are not feasible.

Frequently Asked Questions (FAQ)

Q: Can EEF-CX0G181R be used as a direct replacement for EEF-UD0D181R?

A: Yes. EEF-CX0G181R meets all mandatory compatibility parameters (180 µF capacitance, ±20% tolerance, 2917 package, surface mount). The 4 V rating exceeds the 2 V requirement, and all performance metrics (ESR, lifetime, temperature range) meet or exceed the original specification.

Q: What is the difference between EEF-SX0D181ER and EEF-SX0D181R?

A: Both parts share identical electrical specifications (180 µF, 2 V, 9 mOhm ESR, 2000 Hrs @ 105°C). The primary distinction is product status: EEF-SX0D181ER is Active, while EEF-SX0D181R is Not For New Designs. For new production, EEF-SX0D181ER is the appropriate selection.

Q: Are there physical dimension differences between substitute parts?

A: Yes. EEF-CX0G181R has a maximum seated height of 1.90 mm, compared to 3.00 mm for the original EEF-UD0D181R. EEF-SX0D181ER and EEF-SX0D181R both have maximum seated heights of 2.00 mm. All parts maintain identical footprint dimensions (7.30 mm × 4.30 mm).

Q: Which substitute is recommended for new designs?

A: EEF-CX0G181R is the recommended substitute for new designs. It provides superior performance characteristics (doubled voltage rating and thermal lifetime), Active product status, and full RoHS3 compliance.

Q: Can EEF-UD0D181R be used interchangeably with higher voltage rated substitutes in the same circuit?

A: Yes, within the constraints of circuit design. A capacitor with higher voltage rating can be substituted for one with lower voltage rating, provided all other electrical parameters (capacitance, tolerance, ESR) remain compatible and physical dimensions do not create assembly conflicts.