EEF-UD0G181R Equivalent & Substitute Parts

Part Overview

The EEF-UD0G181R is a 180 µF, 4 V aluminum polymer surface mount capacitor in the 2917 (7343 Metric) package from Panasonic Electronic Components. This part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements. The EEF-UD series has been superseded by more advanced polymer capacitor lines offering improved performance characteristics, including lower ESR, extended lifetime ratings, and wider operating temperature ranges.

Substiute Parts

EEF-UD0G181R

Panasonic Electronic ComponentsIn Stock: 2558EEF-UD0G181R Datasheet

Current PartRFQ

EEF-CX0G181R

Panasonic Electronic ComponentsIn Stock: 2363EEF-CX0G181R Datasheet

DirectRFQ

EEF-CX0G181XR

Panasonic Electronic ComponentsIn Stock: 4233EEF-CX0G181XR Datasheet

SimilarRFQ

EEF-SX0G181ER

Panasonic Electronic ComponentsIn Stock: 877EEF-SX0G181ER Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the EEF-UD0G181R is determined by strict equivalence in the following parameters:

• Capacitance Value: 180 µF (exact match required)
• Voltage Rating: 4 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Dielectric Type: Aluminum Polymer (exact match required)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in ESR, lifetime rating, operating temperature range, and ripple current capacity are secondary performance enhancements that do not affect functional substitutability within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—EEF-CX0G181R, EEF-CX0G181XR, and EEF-SX0G181ER—are active products with ROHS3 compliance and REACH unaffected status, making them suitable for new designs and production environments with regulatory requirements.

The EEF-CX0G181XR and EEF-SX0G181ER offer superior performance characteristics compared to the obsolete EEF-UD0G181R, including lower ESR values, extended lifetime ratings (2000 Hrs @ 105°C versus 1000 Hrs), and expanded operating temperature ranges (-55°C to 105°C versus -40°C to 105°C). These enhancements provide improved reliability and thermal performance without altering the core electrical specifications required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can EEF-CX0G181R, EEF-CX0G181XR, and EEF-SX0G181ER be used interchangeably with EEF-UD0G181R?

A: Yes. All substitute parts maintain identical capacitance (180 µF), voltage rating (4 V), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). These parameters define functional equivalence for this product category.

Q: What is the difference between the three substitute options?

A: The primary differences are ESR (ranging from 15 mOhm to 9 mOhm), ripple current capacity (5.1 A to 6.3 A @ 100 kHz), and physical height. EEF-SX0G181ER offers the lowest ESR and highest ripple current. All three share identical core electrical specifications and package dimensions.

Q: Are the substitute parts physically compatible with the original design?

A: Yes. All substitute parts use the identical 2917 (7343 Metric) package with the same surface mount land size (0.287" L x 0.169" W / 7.30mm x 4.30mm). Height variations (1.90mm to 2.00mm for substitutes versus 3.00mm for the original) do not affect PCB layout compatibility for standard surface mount applications.

Q: What is the product status significance?

A: The EEF-UD0G181R is obsolete, meaning Panasonic no longer manufactures or supports this part. The substitute parts are active products with ongoing manufacturing and supply availability, ensuring long-term design viability and production continuity.

Q: Do the substitute parts meet current regulatory standards?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.