EEF-UD0D221ER Equivalent & Substitute Parts

Part Overview

The EEF-UD0D221ER is a 220 µF, 2 V aluminum polymer capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) surface mount package. This component is designed for general purpose applications requiring compact form factor and polymer dielectric characteristics.

The EEF-UD0D221ER has reached obsolete product status. Identifying qualified substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this capacitor.

Substiute Parts

EEF-UD0D221ER

Panasonic Electronic ComponentsIn Stock: 792EEF-UD0D221ER Datasheet

Current PartRFQ

EEF-CX0D221R

Panasonic Electronic ComponentsIn Stock: 11338EEF-CX0D221R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-UD0D221ER is determined by the following critical parameters:

• Capacitance Value: 220 µF (exact match required)
• Voltage Rating: 2 V (exact match required)
• Tolerance: ±20% (exact match required)
• Dielectric Type: Aluminum Polymer (exact match required)
• Package Code: 2917 (7343 Metric) (exact match required)
• Mounting Technology: Surface Mount (exact match required)

The EEF-CX0D221R qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Both parts share identical capacitance, voltage rating, tolerance, dielectric type, and package footprint. The substitute part operates within compatible temperature ranges and maintains the same surface mount land pattern compatibility.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0D221R is a qualified direct substitute for the obsolete EEF-UD0D221ER. Both parts are manufactured by Panasonic Electronic Components and share identical electrical specifications and package footprints.

The EEF-CX0D221R offers additional engineering advantages: active product status ensures ongoing availability and supply chain support, extended lifetime rating of 2000 hours at 105°C compared to 1000 hours for the original part, higher ripple current capability at 5.1 A versus 3 A, and a lower profile height of 1.90 mm versus 3.00 mm. The substitute part is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The EEF-CX0D221R is available in Tape & Reel packaging with substantial inventory levels, supporting both prototype and production volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0D221R be used as a direct replacement for the EEF-UD0D221ER?

A: Yes. Both parts share identical capacitance (220 µF), voltage rating (2 V), tolerance (±20%), dielectric type (aluminum polymer), and package footprint (2917/7343 Metric). The substitute part is pin-compatible and PCB-footprint compatible with the original component.

Q: What are the key differences between these two parts?

A: The EEF-CX0D221R is an active product with improved performance characteristics. It provides extended lifetime (2000 hours at 105°C versus 1000 hours), higher ripple current capability (5.1 A versus 3 A at 100 kHz), lower profile height (1.90 mm versus 3.00 mm), and specified ESR of 15 mOhm. The substitute operates across a wider temperature range (-55°C to 105°C versus -40°C to 105°C).

Q: Are there any height or form factor considerations?

A: The EEF-CX0D221R has a maximum seated height of 1.90 mm compared to 3.00 mm for the EEF-UD0D221ER. This lower profile may provide design flexibility for space-constrained applications. Both parts maintain the same 7.30 mm length and 4.30 mm width footprint.

Q: What is the supply status of the substitute part?

A: The EEF-CX0D221R is an active product with substantial inventory availability. The EEF-UD0D221ER is obsolete and no longer manufactured.

Q: Are there compliance or certification differences?

A: The EEF-CX0D221R is RoHS3 compliant and REACH unaffected. Both parts carry the same ECCN (EAR99) and HTSUS (8532.22.0020) classifications.