Nichicon LLS2Z331MELZ Equivalent & Substitute Parts

Part Overview

The Nichicon LLS2Z331MELZ is a 330 µF, 180 V aluminum electrolytic capacitor in a radial, snap-in can package rated for 3000 hours at 85°C. This component is designed for general-purpose applications requiring stable capacitance and ripple current handling in through-hole configurations. The part is active and ROHS3 compliant. Equivalent and substitute parts are identified when design requirements allow for voltage upgrades, improved thermal performance, or alternative manufacturer sourcing while maintaining core electrical and mechanical compatibility.

Substiute Parts

LLS2Z331MELZ

NichiconIn Stock: 743LLS2Z331MELZ Datasheet

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LGW2D331MELZ25

NichiconIn Stock: 273874LGW2D331MELZ25 Datasheet

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LGU2Z331MELZ

NichiconIn Stock: 1270LGU2Z331MELZ Datasheet

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LLS2D331MELZ

NichiconIn Stock: 1260LLS2D331MELZ Datasheet

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381LR331M200H012

Cornell Dubilier Electronics (CDE)In Stock: 1501381LR331M200H012 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LLS2Z331MELZ is determined by the following criteria:

Electrical Compatibility: Capacitance (330 µF) and tolerance (±20%) must remain constant. Rated voltage may be equal or higher; lower voltage ratings are not acceptable.

Mechanical Compatibility: Lead spacing (10.00mm), case diameter (22.00mm), height (25.00mm), and snap-in package configuration must match exactly to ensure PCB footprint compatibility.

Thermal & Reliability: Operating temperature range and lifetime rating may be improved without affecting circuit function. Enhanced thermal performance (higher temperature rating or extended lifetime) represents an upgrade path.

Manufacturer Sourcing: Parts from different manufacturers (Nichicon, Cornell Dubilier Electronics) meeting the above criteria are functionally equivalent.

Substitutes are grouped as follows:

• Upgrade substitutes: Higher voltage rating (200 V vs. 180 V) or improved thermal performance (105°C operation vs. 85°C, or extended lifetime)
• Equivalent substitutes: Identical electrical and thermal specifications from alternative manufacturers

Parameter Comparison

Engineering Selection Recommendations

Direct Upgrade Path: LGW2D331MELZ25 and 381LR331M200H012 provide voltage margin (200 V vs. 180 V) and extended thermal performance (105°C operation vs. 85°C). Both are ROHS3 compliant and suitable for applications requiring enhanced reliability.

Thermal Performance Upgrade: LGU2Z331MELZ maintains the 180 V rating while extending operating temperature to 105°C and lifetime to 3000 hours at that temperature. This is appropriate for designs operating in elevated ambient conditions.

Voltage Upgrade (Same Thermal Class): LLS2D331MELZ upgrades voltage to 200 V while maintaining the 85°C thermal class. This is suitable for circuits where voltage margin is required but thermal performance is not a limiting factor.

Cross-Manufacturer Sourcing: 381LR331M200H012 from Cornell Dubilier Electronics provides equivalent functionality to LGW2D331MELZ25 with identical electrical and mechanical specifications. Both are ROHS3 compliant and suitable for supply chain diversification.

All substitute parts maintain identical mechanical footprint and snap-in package configuration, ensuring direct PCB compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can LLS2Z331MELZ be replaced with a lower voltage rating? A: No. Voltage substitution must be equal to or higher than the original specification. Lower voltage ratings reduce safety margin and may cause premature failure.

Q: Are all substitute parts mechanically interchangeable? A: Yes. All listed substitutes maintain identical lead spacing (10.00mm), case diameter (22.00mm), height (25.00mm), and snap-in package configuration. Direct PCB footprint compatibility is guaranteed.

Q: What is the difference between LGW2D331MELZ25 and 381LR331M200H012? A: Both parts are electrically and mechanically identical (330 µF, 200 V, ±20%, 3000 Hrs @ 105°C, -40°C ~ 105°C). The primary difference is manufacturer: Nichicon versus Cornell Dubilier Electronics. Both are ROHS3 compliant.

Q: Can I use LGU2Z331MELZ if my circuit operates at 85°C? A: Yes. LGU2Z331MELZ is rated for operation up to 105°C, so it is suitable for circuits operating at 85°C. The higher temperature rating provides additional thermal margin without affecting circuit performance.

Q: Does upgrading to 200 V affect circuit behavior? A: No. Higher voltage rating does not change capacitance value, tolerance, or ripple current handling. It provides additional voltage safety margin without altering electrical performance at the original operating voltage.

Q: Are all substitute parts ROHS3 compliant? A: Yes. LLS2Z331MELZ, LGW2D331MELZ25, LGU2Z331MELZ, LLS2D331MELZ, and 381LR331M200H012 are all ROHS3 compliant.