ESRL150M12B Equivalent & Substitute Parts Reference

Part Overview

The ESRL150M12B is a 15 µF, 12.5 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) surface mount package. This component is designed for bypass and decoupling applications in electronic circuits. The part is currently Active in product status with 823 pieces available in stock.

Equivalent and substitute parts are identified when design requirements change, inventory constraints occur, or when alternative manufacturers offer compatible specifications. The substitute part identified for the ESRL150M12B maintains the same capacitance value, tolerance, package footprint, and ESR characteristics while offering enhanced electrical performance parameters.

Substiute Parts

ESRL150M12B

Cornell Dubilier Electronics (CDE)In Stock: 874ESRL150M12B Datasheet

Current PartRFQ

EEF-CX1C150R

Panasonic Electronic ComponentsIn Stock: 2666EEF-CX1C150R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the ESRL150M12B is based on the following criteria:

Critical Matching Parameters:

• Capacitance value of 15 µF (exact match required)
• Tolerance of ±20% (equal or tighter tolerance acceptable)
• Package footprint 2917 (7343 Metric) for PCB compatibility
• Surface mount mounting type
• Polymer capacitor type
• ESR of 40 mOhm (equal or lower acceptable)

Acceptable Variation Parameters:

• Voltage rating: Substitute must equal or exceed 12.5 V
• Lifetime at temperature: Substitute may exceed 1000 Hrs @ 105°C
• Ripple current capability: Substitute may exceed 1.4 A @ 100 kHz
• Height dimension: Substitute may vary if within PCB assembly clearance

Compliance Requirements:

• RoHS3 compliance maintained
• REACH unaffected status maintained

The identified substitute part EEF-CX1C150R meets all critical matching parameters while providing enhanced performance in voltage rating, lifetime, and ripple current capacity.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (ESRL150M12B): The ESRL150M12B is the recommended choice for new designs. This part maintains Active product status, ensuring long-term availability and manufacturer support. It is fully compliant with ROHS3 and REACH requirements. The component is currently in stock with 823 pieces available.

Substitute Part Selection (EEF-CX1C150R): The EEF-CX1C150R is a valid electrical and mechanical substitute when the ESRL150M12B is unavailable. This Panasonic component provides identical capacitance, tolerance, ESR, and package footprint specifications. The substitute offers enhanced performance with a 16 V voltage rating (exceeding the 12.5 V requirement), doubled thermal lifetime (2000 Hrs @ 105°C versus 1000 Hrs), and increased ripple current capability (3.2 A @ 100 kHz versus 1.4 A).

Critical Consideration: The EEF-CX1C150R has a maximum seated height of 0.075" (1.90mm) compared to the ESRL150M12B height of 0.043" (1.10mm). PCB assembly clearance must be verified before substitution to ensure no interference with adjacent components or enclosure constraints.

The EEF-CX1C150R carries a "Not For New Designs" product status. This designation indicates the part is available for existing designs and legacy applications but should not be selected for new product development. Use this substitute only when the primary part is unavailable or when supporting existing production.

Frequently Asked Questions (FAQ)

Q: Can the EEF-CX1C150R replace the ESRL150M12B in my circuit?

A: Yes, the EEF-CX1C150R is electrically and mechanically compatible. Both parts share identical capacitance (15 µF), tolerance (±20%), ESR (40 mOhm), package footprint (2917/7343 Metric), and operating temperature range (-55°C ~ 105°C). The substitute provides superior voltage rating and thermal lifetime. Verify PCB clearance for the increased height dimension (1.90mm vs. 1.10mm).

Q: What is the difference in voltage rating between these parts?

A: The ESRL150M12B is rated at 12.5 V, while the EEF-CX1C150R is rated at 16 V. The substitute's higher voltage rating provides additional safety margin in applications operating at or near 12.5 V. Both parts are suitable for circuits with maximum operating voltages at or below 12.5 V.

Q: Why does the substitute have a different height?

A: The EEF-CX1C150R has a maximum seated height of 1.90mm compared to the ESRL150M12B at 1.10mm. This difference is due to internal construction variations between manufacturers. Verify that your PCB layout and enclosure design accommodate the taller component before substitution.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both the ESRL150M12B and EEF-CX1C150R are ROHS3 compliant and REACH unaffected. Both parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What does "Not For New Designs" mean for the EEF-CX1C150R?

A: This product status indicates that Panasonic is not recommending the EEF-CX1C150R for new product development. The part remains available for existing designs and legacy applications. For new designs, select the ESRL150M12B or consult with Panasonic for current-generation alternatives.

Q: Can I use the substitute if my design requires exactly 1000 Hrs @ 105°C lifetime?

A: Yes. The EEF-CX1C150R exceeds this requirement with 2000 Hrs @ 105°C lifetime. Exceeding the specified lifetime parameter does not create compatibility issues; it provides additional design margin.

Q: Are the package footprints identical?

A: Yes, both parts use the 2917 (7343 Metric) package with identical land pattern dimensions of 0.287" L x 0.169" W (7.30mm x 4.30mm). PCB footprints are directly compatible. Only the component height differs.

Q: What is the ripple current difference, and does it matter?

A: The ESRL150M12B handles 1.4 A @ 100 kHz, while the EEF-CX1C150R handles 3.2 A @ 100 kHz. If your circuit requires ripple current handling above 1.4 A, the substitute provides additional capability. If your circuit operates below 1.4 A, both parts are suitable.