LLS2V181MELY Equivalent & Substitute Parts

Part Overview

The LLS2V181MELY is a 180 µF, 350 V aluminum electrolytic capacitor manufactured by Nichicon in the LLS series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance performance across extended operating temperatures (-25°C to 85°C) with a rated lifetime of 3000 hours at 85°C. The part is Active status and ROHS3 compliant, making it suitable for modern electronic equipment. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the allowed parameter range.

Substiute Parts

LLS2V181MELY

NichiconIn Stock: 763LLS2V181MELY Datasheet

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LLS2V181MELZ

NichiconIn Stock: 1020LLS2V181MELZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the LLS2V181MELY is determined by strict equivalence in the following electrical and mechanical parameters:

• Capacitance value: 180 µF (exact match required)
• Voltage rating: 350 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Mounting type: Through Hole (exact match required)
• Package style: Radial, Can - Snap-In (exact match required)
• Manufacturer series: Nichicon LLS (same manufacturer series)
• RoHS compliance: ROHS3 Compliant (same compliance level)

The LLS2V181MELZ qualifies as a direct substitute based on these criteria. Variations in physical dimensions (diameter and height) and ripple current ratings are permitted within the snap-in package design, provided all core electrical specifications and lead spacing remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both LLS2V181MELY and LLS2V181MELZ are Active status products manufactured by Nichicon and carry ROHS3 compliance certification. Selection between these parts is based on:

• PCB layout constraints: The LLS2V181MELZ features a larger diameter (22.00 mm vs. 20.00 mm) but reduced height (32.00 mm vs. 37.00 mm). Choose based on available board space.
• Ripple current handling: The LLS2V181MELZ provides higher ripple current ratings at both 120 Hz (1.34 A vs. 1.24 A) and 50 kHz (1.9162 A vs. 1.7732 A), offering improved thermal performance in high-ripple applications.
• Inventory availability: LLS2V181MELZ has higher stock availability (933 pcs vs. 699 pcs).

Both parts maintain identical electrical specifications and are mechanically compatible within snap-in package design tolerances.

Frequently Asked Questions (FAQ)

Q: Can LLS2V181MELZ be used as a direct replacement for LLS2V181MELY?

A: Yes. Both parts share identical capacitance (180 µF), voltage rating (350 V), tolerance (±20%), lead spacing (10.00 mm), and mounting configuration. The physical dimension differences are permitted variations within the snap-in package design and do not affect electrical compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are physical dimensions and ripple current ratings. LLS2V181MELZ has a larger diameter (22.00 mm) and shorter height (32.00 mm) compared to LLS2V181MELY (20.00 mm diameter, 37.00 mm height). LLS2V181MELZ also provides higher ripple current capacity at both low and high frequencies.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both carry identical regulatory status.

Q: Which part should I select for space-constrained applications?

A: For applications with height limitations, LLS2V181MELZ is preferable due to its reduced seated height (32.00 mm vs. 37.00 mm). For applications with diameter constraints, LLS2V181MELY is preferable due to its smaller diameter (20.00 mm vs. 22.00 mm).

Q: Do these parts have identical thermal performance?

A: Both parts share the same rated lifetime of 3000 hours at 85°C and identical operating temperature range (-25°C to 85°C). The LLS2V181MELZ offers higher ripple current ratings, which may provide improved thermal margin in high-ripple environments.