Rubycon 2.5SLG150M Equivalent & Substitute Parts

Part Overview

The Rubycon 2.5SLG150M is a 150 µF aluminum polymer capacitor rated at 2.5 V, designed for general-purpose applications in surface mount configurations. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. The part operates across a wide temperature range (-55°C to 105°C) with a 2000-hour lifetime rating at 105°C, typical for polymer capacitor applications requiring stable performance in compact form factors.

Substiute Parts

2.5SLG150M

RubyconIn Stock: 7202.5SLG150M Datasheet

Current PartRFQ

EEF-CX0G151R

Panasonic Electronic ComponentsIn Stock: 21692EEF-CX0G151R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Rubycon 2.5SLG150M is determined by the following critical parameters:

• Capacitance Value: 150 µF (exact match required)
• Package Type: 2917 (7343 Metric) surface mount form factor (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: Minimum 2.5 V (equal or higher voltage rating acceptable)
• Type: Aluminum polymer construction (exact match required)
• Operating Temperature Range: -55°C to 105°C (must support full range)
• Lifetime Rating: 2000 Hours @ 105°C (minimum requirement)

The Panasonic EEF-CX0G151R qualifies as a direct substitute based on matching capacitance, tolerance, package, type, temperature range, and lifetime specifications. The substitute part features a higher voltage rating (4 V versus 2.5 V), which is permissible in substitution scenarios where the application circuit operates at or below the original 2.5 V specification.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic EEF-CX0G151R serves as a qualified substitute for the obsolete Rubycon 2.5SLG150M based on the following factors:

• Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.
• The substitute part is classified as active product status, providing assured long-term availability and supply chain continuity.
• Electrical parameters align across capacitance, tolerance, temperature range, and lifetime specifications.
• The higher voltage rating (4 V) of the substitute part introduces no functional risk when applied in circuits designed for 2.5 V operation.
• The increased ripple current capability (5.1 A versus 2.7 A at 100 kHz) provides additional performance margin in high-frequency applications.
• Identical package geometry (2917/7343 Metric) ensures direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic EEF-CX0G151R directly replace the Rubycon 2.5SLG150M on existing PCBs?

A: Yes. Both components use the identical 2917 (7343 Metric) surface mount package with matching land pattern dimensions (0.287" L x 0.169" W). No PCB layout changes are required.

Q: Why does the substitute part have a higher voltage rating (4 V versus 2.5 V)?

A: Higher voltage ratings are acceptable in substitution applications. The circuit design determines the actual operating voltage. A 4 V rated capacitor functions correctly in a 2.5 V circuit with no performance degradation.

Q: What is the significance of the ESR difference (9 mOhm versus 15 mOhm)?

A: The substitute part exhibits slightly higher equivalent series resistance. For general-purpose applications, this 6 mOhm difference remains within acceptable operating parameters. Applications with stringent ESR requirements should conduct circuit-level analysis.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the Rubycon 2.5SLG150M and Panasonic EEF-CX0G151R are ROHS3 compliant and REACH unaffected, meeting current manufacturing and environmental standards.

Q: What is the availability status of each part?

A: The Rubycon 2.5SLG150M is classified as obsolete with limited remaining inventory (617 pieces). The Panasonic EEF-CX0G151R is active product with substantial inventory availability (21,633 pieces), ensuring reliable supply for new production runs.

Q: Do the temperature operating ranges match?

A: Yes. Both components operate across the identical temperature range of -55°C to 105°C with 2000-hour lifetime ratings at 105°C.