ECO-S1JA681BA Equivalent & Substitute Parts

Part Overview

The ECO-S1JA681BA is a 680 µF, 63 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C, serving general-purpose applications requiring stable capacitance and low equivalent series resistance.

Substiute Parts

ECO-S1JA681BA

Panasonic Electronic ComponentsIn Stock: 1032ECO-S1JA681BA Datasheet

Current PartRFQ

381LX681M063H012

Cornell Dubilier Electronics (CDE)In Stock: 843381LX681M063H012 Datasheet

DirectRFQ

381LX681M080H012

Cornell Dubilier Electronics (CDE)In Stock: 645381LX681M080H012 Datasheet

UpgradeRFQ

381LX681M100H012

Cornell Dubilier Electronics (CDE)In Stock: 1028381LX681M100H012 Datasheet

UpgradeRFQ

687LMB100M2BC

Cornell Dubilier / Illinois CapacitorIn Stock: 714687LMB100M2BC Datasheet

UpgradeRFQ

ELXG800VSN681MP25S

Chemi-ConIn Stock: 714ELXG800VSN681MP25S Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECO-S1JA681BA is determined by the following critical parameters:

• Capacitance: Must be 680 µF (±20% tolerance acceptable)
• Voltage Rating: Minimum 63 V (equal or higher voltage ratings are acceptable as upgrades)
• Package / Case: Radial, Can - Snap-In configuration
• Lead Spacing: 10.00 mm (0.394")
• Physical Dimensions: 0.866" Dia (22.00 mm) and 1.063" Height (27.00 mm)
• Mounting Type: Through Hole
• Polarization: Polar
• Operating Temperature Range: -40°C ~ 105°C
• Lifetime @ 105°C: Minimum 3000 hours

Substitute parts are grouped into two categories:

Direct Equivalent (Same Voltage Rating - 63 V):

• 381LX681M063H012 (Cornell Dubilier Electronics)

Upgrade Substitutes (Higher Voltage Ratings - 80 V or 100 V):

• 381LX681M080H012 (Cornell Dubilier Electronics, 80 V)
• 381LX681M100H012 (Cornell Dubilier Electronics, 100 V)
• 687LMB100M2BC (Cornell Dubilier / Illinois Capacitor, 100 V)
• ELXG800VSN681MP25S (Chemi-Con, 80 V)

Higher voltage-rated parts provide enhanced reliability margins in applications where the original 63 V specification allows for voltage headroom.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating): The 381LX681M063H012 from Cornell Dubilier Electronics provides a direct equivalent to the ECO-S1JA681BA. Both parts maintain 63 V voltage rating, 680 µF capacitance, and 3000-hour lifetime at 105°C. The 381LX681M063H012 is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability.

For Upgraded Voltage Margin Applications: The 381LX681M080H012 and 381LX681M100H012 offer higher voltage ratings (80 V and 100 V respectively) while maintaining identical capacitance and physical dimensions. These upgrades provide enhanced reliability margins in circuits where voltage transients or design margin improvements are beneficial. Both are ROHS3 compliant and active products.

The ELXG800VSN681MP25S from Chemi-Con provides an 80 V upgrade option with extended lifetime (5000 hours at 105°C) compared to the original 3000-hour specification. This part is RoHS compliant and suitable for applications requiring enhanced long-term reliability.

The 687LMB100M2BC offers a 100 V upgrade with active product status and ROHS3 compliance, though ESR is higher at 487.607 mOhm compared to lower-ESR alternatives.

All substitute parts maintain through-hole mounting, snap-in package configuration, and -40°C to 105°C operating temperature range, ensuring mechanical and thermal compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute for the ECO-S1JA681BA?

A: Yes. Higher voltage-rated capacitors (80 V or 100 V) are acceptable substitutes provided all other parameters match: 680 µF capacitance, ±20% tolerance, radial snap-in package, 10.00 mm lead spacing, and through-hole mounting. Higher voltage ratings do not degrade performance in circuits designed for lower voltages.

Q: What is the difference between the direct equivalent and upgrade substitutes?

A: The 381LX681M063H012 maintains the original 63 V rating. Upgrade substitutes (381LX681M080H012, 381LX681M100H012, 687LMB100M2BC, ELXG800VSN681MP25S) provide 80 V or 100 V ratings, offering additional voltage margin and, in some cases, improved ESR or extended lifetime specifications.

Q: Are all substitute parts physically compatible with the original PCB layout?

A: Yes. All substitute parts share identical lead spacing (10.00 mm), package configuration (radial snap-in), and physical dimensions (0.866" diameter, 1.063" height). No PCB modifications are required for mechanical compatibility.

Q: What compliance certifications should I verify for my application?

A: All active substitute parts are ROHS3 or RoHS compliant. Verify REACH status and ECCN classification (all listed parts are EAR99) against your specific regulatory requirements. The original ECO-S1JA681BA is REACH Affected; all substitutes are REACH Unaffected.

Q: Does ESR variation between substitute parts affect circuit performance?

A: ESR differences are provided in the parameter comparison table. Lower ESR values (ELXG800VSN681MP25S at 150 mOhm impedance, 381LX681M080H012 at 270 mOhm) reduce ripple voltage and heat generation. Higher ESR values (687LMB100M2BC at 487.607 mOhm) may be acceptable in applications with less stringent ripple requirements. Verify ESR specifications against your circuit design margins.

Q: Which substitute offers the longest operational lifetime?

A: The ELXG800VSN681MP25S provides 5000 hours at 105°C, compared to 3000 hours for all other listed parts. This extended lifetime is beneficial for applications requiring maximum reliability over extended service periods.