Nichicon LLS1E123MELA Equivalent & Substitute Parts

Part Overview

The Nichicon LLS1E123MELA is a 12000 µF, 25 V aluminum electrolytic capacitor with radial, snap-in mounting. This through-hole component is rated for 3000 hours at 85°C and operates across a temperature range of -40°C to 85°C. The part is Active in product status and ROHS3 compliant. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained within the specified parameter tolerances for this capacitor category.

Substiute Parts

LLS1E123MELA

NichiconIn Stock: 866LLS1E123MELA Datasheet

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LLS1E123MELB

NichiconIn Stock: 1160LLS1E123MELB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the Nichicon LLS1E123MELA is determined by strict equivalence in the following parameters:

• Capacitance value: 12000 µF (exact match required)
• Voltage rating: 25 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime rating: 3000 Hrs @ 85°C (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Mounting type: Through Hole (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)
• Polarization: Polar (exact match required)
• Compliance: ROHS3 Compliant (exact match required)

The LLS1E123MELB meets all substitution criteria. Variations in physical dimensions (diameter and height) and ripple current ratings do not affect functional equivalence when all electrical and mounting parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

Both the LLS1E123MELA and LLS1E123MELB are Active products from Nichicon with identical electrical specifications and compliance certifications. Selection between these parts is based on availability and physical form factor requirements. The LLS1E123MELA features a 0.984" diameter can with 1.457" maximum seated height. The LLS1E123MELB features a 1.181" diameter can with 1.063" maximum seated height. PCB layout constraints and enclosure dimensions determine which physical configuration is appropriate for the application. Both parts maintain ROHS3 compliance and REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can LLS1E123MELB replace LLS1E123MELA in all applications?

A: Yes, provided PCB layout accommodates the different physical dimensions. The LLS1E123MELB has a larger diameter (1.181" vs 0.984") but shorter height (1.063" vs 1.457"). All electrical parameters, voltage ratings, capacitance values, and compliance certifications are identical.

Q: Are the ripple current differences between these parts significant?

A: Ripple current ratings are provided specifications but do not affect substitution eligibility when all electrical and mechanical parameters match. Component selection should verify ripple current capacity meets circuit requirements independently.

Q: Do both parts use the same lead spacing?

A: Yes. Both LLS1E123MELA and LLS1E123MELB use 0.394" (10.00mm) lead spacing, ensuring PCB footprint compatibility.

Q: What is the significance of the ±20% tolerance specification?

A: The ±20% tolerance indicates the capacitance value may vary between 9600 µF and 14400 µF from the nominal 12000 µF rating. This tolerance applies to both substitute parts and must be considered in circuit design.

Q: Are there any temperature or compliance differences between these parts?

A: No. Both parts operate across -40°C to 85°C, maintain 3000 hour lifetime at 85°C, and hold identical ROHS3 and REACH compliance status.