EEF-UD0E151CE Equivalent & Substitute Parts

Part Overview

The EEF-UD0E151CE is a 150 µF, 2.5 V aluminum polymer surface mount capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This part is classified as obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 1000 hours at 105°C, serving general-purpose applications requiring compact form factors and stable capacitance characteristics.

Substiute Parts

EEF-UD0E151CE

Panasonic Electronic ComponentsIn Stock: 916EEF-UD0E151CE Datasheet

Current PartRFQ

EEF-SX0E151ER

Panasonic Electronic ComponentsIn Stock: 1168EEF-SX0E151ER Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-UD0E151CE is determined by strict equivalence across the following parameters:

• Capacitance value: 150 µF (exact match required)
• Voltage rating: 2.5 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Dielectric type: Aluminum Polymer (exact match required)

The substitute part EEF-SX0E151ER meets all mandatory equivalence criteria. While this substitute offers improved performance characteristics (lower ESR, extended lifetime, wider operating temperature range, and active product status), these enhancements do not alter the fundamental substitution relationship—they represent design improvements within the same electrical and mechanical specification envelope.

Parameter Comparison

Engineering Selection Recommendations

The EEF-SX0E151ER is the direct substitute for the obsolete EEF-UD0E151CE. Both parts share identical electrical specifications (150 µF, 2.5 V, ±20% tolerance) and mechanical compatibility (2917 package, surface mount configuration). The substitute part carries active product status, ensuring long-term availability and supply chain stability.

The EEF-SX0E151ER provides additional compliance certifications (ROHS3 Compliant, REACH Unaffected) and extended operational characteristics including lower ESR (9 mOhm), doubled lifetime rating (2000 hours at 105°C), and expanded operating temperature range (-55°C to 105°C). These improvements maintain backward compatibility while offering enhanced reliability margins for new designs and production continuity for existing applications.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0E151ER be used as a direct replacement for the EEF-UD0E151CE?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 150 µF capacitance, 2.5 V voltage rating, ±20% tolerance, and 2917 (7343 Metric) surface mount package. The substitute part is pin-compatible and footprint-compatible with no circuit modifications required.

Q: What are the key differences between these parts?

A: The primary differences are product status and performance enhancements. The EEF-SX0E151ER is an active product with improved specifications: lower ESR (9 mOhm), extended lifetime (2000 hours at 105°C versus 1000 hours), wider operating temperature range (-55°C to 105°C versus -40°C to 105°C), and regulatory compliance certifications (ROHS3, REACH).

Q: Are there any height or dimensional differences?

A: Yes. The EEF-SX0E151ER has a maximum seated height of 0.079" (2.00 mm), while the EEF-UD0E151CE has a maximum seated height of 0.118" (3.00 mm). Both parts maintain identical footprint dimensions (0.287" L x 0.169" W / 7.30 mm x 4.30 mm), so PCB land patterns are compatible. Verify clearance in your specific assembly if height-constrained applications are present.

Q: What packaging formats are available for the substitute part?

A: The EEF-SX0E151ER is supplied in Tape & Reel (TR) format. Confirm packaging requirements for your procurement and assembly processes.

Q: Are regulatory certifications important for my application?

A: The EEF-SX0E151ER carries ROHS3 Compliant and REACH Unaffected certifications. If your application or market requires these compliance standards, the substitute part satisfies these requirements. The main part does not specify these certifications.