ECO-S1KP681BA Equivalent & Substitute Parts

Part Overview

The ECO-S1KP681BA is a 680 µF, 80 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and component procurement. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 3000 hours at 85°C, serving general-purpose applications requiring stable capacitance and low equivalent series resistance.

Substiute Parts

ECO-S1KP681BA

Panasonic Electronic ComponentsIn Stock: 1026ECO-S1KP681BA Datasheet

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SLP681M100A1P3

Cornell Dubilier Electronics (CDE)In Stock: 1255SLP681M100A1P3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECO-S1KP681BA is determined by the following critical parameters:

• Capacitance Value: 680 µF (must match exactly)
• Package Type: Radial, Can - Snap-In (mechanical compatibility requirement)
• Lead Spacing: 0.394" (10.00 mm) (PCB layout compatibility)
• Physical Dimensions: 0.866" Dia × 0.984" Height (form factor constraint)
• Mounting Type: Through Hole (assembly process compatibility)
• Voltage Rating: Minimum 80 V (functional requirement; higher ratings acceptable)
• Tolerance: ±20% (electrical specification)
• ESR: 390 mOhm (performance characteristic)

The substitute part SLP681M100A1P3 meets all mechanical and electrical compatibility criteria. The rated voltage is increased from 80 V to 100 V, which is acceptable as higher voltage ratings provide enhanced operational margin without affecting circuit function. The operating temperature range is extended to 105°C, and the lifetime rating is maintained at 3000 hours at the elevated temperature.

Parameter Comparison

Engineering Selection Recommendations

The SLP681M100A1P3 is a direct functional substitute for the ECO-S1KP681BA. The substitute part maintains identical capacitance, tolerance, ESR, and physical form factor while providing enhanced electrical performance through increased voltage rating and extended operating temperature range.

The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. The part is ROHS3 compliant and REACH unaffected, providing regulatory compliance advantages over the original obsolete component. These factors make the SLP681M100A1P3 the appropriate selection for new designs and component replacement applications.

Frequently Asked Questions (FAQ)

Q: Can SLP681M100A1P3 be used as a direct replacement for ECO-S1KP681BA?

A: Yes. Both parts share identical capacitance (680 µF), tolerance (±20%), ESR (390 mOhm), lead spacing (10.00 mm), and physical dimensions (0.866" Dia × 0.984" Height). The snap-in radial can package and through-hole mounting type are identical, ensuring mechanical and electrical compatibility.

Q: What is the significance of the voltage rating difference?

A: The substitute part has a rated voltage of 100 V compared to the original 80 V. Higher voltage ratings do not negatively affect circuit operation when the applied voltage remains at or below the original specification. The increased voltage rating provides additional operational margin and reliability.

Q: Are there temperature range considerations?

A: The substitute part operates across -40°C to 105°C, extending the upper temperature limit by 20°C compared to the original -40°C to 85°C range. This extended range provides greater flexibility for applications subject to elevated ambient or operating temperatures. The lifetime rating of 3000 hours is maintained at the elevated temperature of 105°C.

Q: What compliance advantages does the substitute part offer?

A: The SLP681M100A1P3 is ROHS3 compliant and REACH unaffected, whereas the original ECO-S1KP681BA is REACH affected. These certifications are relevant for applications subject to environmental and regulatory requirements in specific markets and industries.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical lead spacing (0.394" / 10.00 mm), diameter (0.866" / 22.00 mm), and maximum seated height (0.984" / 25.00 mm). PCB layout and mechanical assembly requirements remain unchanged.