LLS2C681MELZ Equivalent & Substitute Parts

Part Overview

The LLS2C681MELZ is a 680 µF, 160 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 and extended operational life. With an active product status and full RoHS3 compliance, this component remains in production and is suitable for new designs. Substitute parts are identified when original inventory is unavailable or when design flexibility permits equivalent component selection based on matching electrical and mechanical specifications.

Substiute Parts

LLS2C681MELZ

NichiconIn Stock: 737LLS2C681MELZ Datasheet

Current PartRFQ

380LX681M160H042

Cornell Dubilier Electronics (CDE)In Stock: 1043380LX681M160H042 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2C681MELZ is determined by strict alignment of the following parameters:

• Capacitance value: 680 µF (exact match required)
• Voltage rating: 160 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime specification: 3000 Hrs @ 85°C (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Polarization: Polar (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Case diameter: 0.866" (22.00 mm) (exact match required)
• Mounting type: Through Hole (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)

The substitute part 380LX681M160H042 (Cornell Dubilier Electronics) meets all critical electrical and mechanical parameters. Minor variations in physical height and ripple current ratings do not affect functional equivalence within the scope of general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Both the LLS2C681MELZ and 380LX681M160H042 are active products with full RoHS3 compliance and REACH unaffected status, making them suitable for current and future designs. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• PCB layout constraints, particularly regarding maximum component height (the CDE part is 7 mm taller)
• Supplier preference and cost considerations
• Existing qualification history within your design environment

Both parts carry identical electrical specifications and regulatory certifications, ensuring functional interchangeability in general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can the 380LX681M160H042 be used as a direct replacement for the LLS2C681MELZ?

A: Yes, the 380LX681M160H042 is electrically and mechanically equivalent. Both parts share identical capacitance, voltage rating, tolerance, lifetime specification, operating temperature range, lead spacing, and case diameter. The primary difference is physical height: the CDE part measures 1.654" (42.00 mm) versus 1.378" (35.00 mm) for the Nichicon part. Verify PCB clearance before substitution.

Q: What parameters must match exactly for substitution eligibility?

A: Capacitance (680 µF), voltage rating (160 V), tolerance (±20%), lifetime (3000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), lead spacing (0.394" / 10.00 mm), case diameter (0.866" / 22.00 mm), and package type (Radial, Can - Snap-In) must all match exactly.

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

A: No. Both parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS codes (8532.22.0040).

Q: Does the height difference affect electrical performance?

A: No. The height difference does not affect electrical characteristics. However, it may impact PCB layout and mechanical clearance. Confirm available vertical space in your design before selecting the taller CDE component.

Q: What is the ripple current rating difference between these parts?

A: The LLS2C681MELZ specifies 2.35 A @ 120 Hz and 4.625 A @ 50 kHz. The 380LX681M160H042 specifies 2.36 A @ 120 Hz and 2.39 A @ 20 kHz. For general-purpose applications operating within the specified voltage and temperature parameters, both ratings are adequate. Verify ripple current requirements for your specific application.