EEF-CD1B100R Equivalent & Substitute Parts

Part Overview

The EEF-CD1B100R is a 10 µF, 12.5 V aluminum-polymer surface mount capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 105°C with an ESR of 60 mOhm and a rated lifetime of 1000 hours at 105°C.

Substiute Parts

EEF-CD1B100R

Panasonic Electronic ComponentsIn Stock: 1000EEF-CD1B100R Datasheet

Current PartRFQ

EEF-CS1D100R

Panasonic Electronic ComponentsIn Stock: 11357EEF-CS1D100R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-CD1B100R is determined by the following critical parameters:

• Capacitance Value: Must remain 10 µF (±20% tolerance acceptable)
• Package / Case: Must be 2917 (7343 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount
• Voltage Rating: Must be equal to or greater than 12.5 V
• Type: Aluminum - Polymer construction required
• Operating Temperature Range: Must support -40°C to 105°C minimum

The substitute part EEF-CS1D100R meets all substitution criteria. It maintains identical capacitance, tolerance, package, and mounting specifications while providing improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The EEF-CS1D100R serves as a direct substitute for the obsolete EEF-CD1B100R. The substitute part provides superior electrical performance across all measured parameters: reduced ESR (40 mOhm vs. 60 mOhm), doubled lifetime rating (2000 Hrs vs. 1000 Hrs at 105°C), and increased ripple current capacity (3.2 A vs. 1 A at 100 kHz). The voltage rating is increased to 20 V, which exceeds the original 12.5 V requirement and provides additional design margin.

Both parts maintain identical mechanical compatibility with the 2917 (7343 Metric) package and surface mount configuration. The substitute part extends the operating temperature range to -55°C, providing broader environmental coverage. The EEF-CS1D100R carries RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CS1D100R be used as a direct replacement for the EEF-CD1B100R?

A: Yes. Both parts share identical capacitance (10 µF), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these parts?

A: The EEF-CS1D100R provides improved performance: higher voltage rating (20 V vs. 12.5 V), lower ESR (40 mOhm vs. 60 mOhm), extended lifetime (2000 Hrs vs. 1000 Hrs at 105°C), and greater ripple current capacity (3.2 A vs. 1 A at 100 kHz). The substitute also extends the lower operating temperature limit to -55°C.

Q: Are there any mechanical compatibility concerns?

A: No. Both parts use the identical 2917 (7343 Metric) package with matching footprint dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm). PCB layout and land pattern remain unchanged.

Q: What is the significance of the product status difference?

A: The EEF-CD1B100R is classified as obsolete, indicating it is no longer manufactured. The EEF-CS1D100R is marked "Not For New Designs," meaning it remains available but is not recommended for new product development. For legacy system maintenance, the EEF-CS1D100R provides continued availability with superior specifications.

Q: Are compliance certifications equivalent?

A: The EEF-CS1D100R carries RoHS3 compliance and REACH unaffected status. These certifications meet current regulatory requirements for electronic components in most markets.