LLS2Z182MELC Equivalent & Substitute Parts

Part Overview

The LLS2Z182MELC is a 1800 µF, 180 V aluminum electrolytic capacitor in radial, can snap-in configuration manufactured by Nichicon. This component is designed for general-purpose applications requiring high capacitance and voltage ratings in through-hole mounting configurations. The part maintains active product status with 274,082 units in current inventory. Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this capacitor category, particularly when voltage ratings or physical dimensions differ while maintaining functional compatibility.

Substiute Parts

LLS2Z182MELC

NichiconIn Stock: 274122LLS2Z182MELC Datasheet

Current PartRFQ

LLS2D182MELC

NichiconIn Stock: 274034LLS2D182MELC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the LLS2Z182MELC is determined by the following criteria:

Electrical Parameters (Must Match or Exceed):

• Capacitance: 1800 µF (±20% tolerance)
• Voltage Rating: Minimum 180 V (higher ratings are acceptable for downrating applications)
• Lifetime: 3000 Hrs @ 85°C or greater
• Operating Temperature Range: -40°C ~ 85°C or wider

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Lead Spacing: 0.394" (10.00mm)
• Polarization: Polar

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Series: LLS (Nichicon)

The LLS2D182MELC qualifies as a substitute because it maintains identical capacitance, tolerance, lifetime, operating temperature, polarization, package configuration, lead spacing, and RoHS compliance. The voltage rating increases from 180 V to 200 V, which is acceptable for substitution as higher voltage ratings provide additional safety margin in applications rated for 180 V operation.

Parameter Comparison

Engineering Selection Recommendations

The LLS2D182MELC is a valid substitute for the LLS2Z182MELC based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical capacitance (1800 µF), tolerance (±20%), lifetime (3000 Hrs @ 85°C), and operating temperature range (-40°C ~ 85°C). The increased voltage rating of the LLS2D182MELC (200 V versus 180 V) does not compromise compatibility in applications designed for 180 V operation.

Mechanical Compatibility: Lead spacing (10.00mm), polarization (Polar), package type (Radial, Can - Snap-In), and mounting method (Through Hole) are identical. The LLS2D182MELC has a maximum seated height of 1.575" (40.00mm) compared to 1.378" (35.00mm) for the LLS2Z182MELC. This dimensional difference must be evaluated against available board space and mechanical clearance requirements.

Compliance and Status: Both parts are ROHS3 Compliant, REACH Unaffected, and maintain Active product status with current manufacturer support and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the LLS2D182MELC replace the LLS2Z182MELC in all applications?

A: The LLS2D182MELC is electrically and mechanically compatible for substitution in applications where the increased height (1.575" versus 1.378") does not create physical constraints on the PCB or within the enclosure. Verify available vertical clearance before substitution.

Q: What is the significance of the voltage rating difference (180 V versus 200 V)?

A: The higher voltage rating of the LLS2D182MELC provides additional safety margin and does not affect performance in circuits designed for 180 V operation. Higher voltage-rated capacitors are acceptable substitutes for lower voltage-rated applications.

Q: Are both parts from the same manufacturer?

A: Yes, both the LLS2Z182MELC and LLS2D182MELC are manufactured by Nichicon and belong to the LLS series, ensuring consistent quality and performance characteristics.

Q: What parameters must remain identical for substitution?

A: Capacitance (1800 µF), tolerance (±20%), lead spacing (10.00mm), package type (Radial, Can - Snap-In), mounting method (Through Hole), polarization (Polar), and RoHS compliance status must remain identical. Voltage rating may increase, and height may vary within mechanical constraints.

Q: How do I determine if the height difference affects my application?

A: Measure the available vertical clearance on your PCB assembly. The LLS2D182MELC requires 1.575" (40.00mm) maximum height compared to 1.378" (35.00mm) for the LLS2Z182MELC. If clearance is limited, physical validation is required before substitution.