EEF-UD0D331CE Equivalent & Substitute Parts

Part Overview

The EEF-UD0D331CE is a 330 µF, 2 V aluminum polymer capacitor manufactured by Panasonic Electronic Components in the SP-Cap UD series. This surface mount component is housed in a 2917 (7343 Metric) package with a rated lifetime of 1000 hours at 105°C and is designed for general purpose applications. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

EEF-UD0D331CE

Panasonic Electronic ComponentsIn Stock: 1117EEF-UD0D331CE Datasheet

Current PartRFQ

EEF-CX0D331R

Panasonic Electronic ComponentsIn Stock: 7311EEF-CX0D331R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-UD0D331CE is determined by strict equivalence across the following electrical and mechanical parameters:

• Capacitance Value: 330 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)
• Component Type: Aluminum Polymer Capacitor (exact match required)

The substitute part EEF-CX0D331R meets all mandatory equivalence criteria. Additional parameters such as ESR, lifetime rating, and operating temperature range may differ but do not prevent functional substitution when the core electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CX0D331R is a direct functional substitute for the obsolete EEF-UD0D331CE. Both components are manufactured by Panasonic Electronic Components and share identical electrical specifications (330 µF, 2 V, ±20% tolerance) and mechanical compatibility (2917 package, surface mount configuration).

The EEF-CX0D331R offers additional advantages: it is currently in active production status with higher inventory availability, provides an extended operating temperature range (-55°C to 105°C versus -40°C to 105°C), and delivers doubled lifetime rating (2000 hours versus 1000 hours at 105°C). The substitute component exhibits a reduced seated height (1.90mm versus 3.00mm), which may provide layout benefits in space-constrained applications.

The EEF-CX0D331R is RoHS3 compliant and REACH unaffected, supporting modern regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX0D331R be used as a direct replacement for the EEF-UD0D331CE?

A: Yes. Both components share identical capacitance (330 µF), voltage rating (2 V), tolerance (±20%), package type (2917 Metric), and mounting configuration (surface mount). Electrical and mechanical compatibility is confirmed.

Q: What is the significance of the different seated heights?

A: The EEF-CX0D331R has a maximum seated height of 1.90mm compared to 3.00mm for the EEF-UD0D331CE. This reduced height may allow for tighter PCB layout spacing and lower overall assembly profile. Verify clearance requirements in your specific application before substitution.

Q: Why does the EEF-CX0D331R have a different operating temperature range?

A: The EEF-CX0D331R extends the lower operating limit to -55°C (versus -40°C for the main part). This provides broader environmental compatibility. If your application operates within the original -40°C to 105°C range, both components are functionally equivalent in this regard.

Q: What does the doubled lifetime rating mean for my application?

A: The EEF-CX0D331R is rated for 2000 hours at 105°C compared to 1000 hours for the EEF-UD0D331CE. This indicates improved long-term reliability and extended service life under thermal stress. For applications requiring extended operational life, the substitute offers enhanced durability.

Q: Are there any compliance or regulatory differences?

A: The EEF-CX0D331R is RoHS3 compliant and REACH unaffected. Compliance documentation should be verified against your specific procurement and regulatory requirements.

Q: What is the ESR specification, and why is it only listed for the substitute?

A: ESR (Equivalent Series Resistance) is 15 mOhm for the EEF-CX0D331R. This parameter was not specified for the obsolete EEF-UD0D331CE. ESR affects ripple current handling and thermal performance; the substitute's specified ESR supports high-frequency ripple current applications up to 5.1 A at 100 kHz.