LGU2Z331MELZ Equivalent & Substitute Parts

Part Overview

The LGU2Z331MELZ is a 330 µF, 180 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as Active product status and is designed for general-purpose applications requiring stable capacitance performance over extended operational life. The part delivers 3000 hours of rated lifetime at 105°C with operating temperature range from -40°C to 105°C.

Equivalent and substitute parts are identified when design requirements allow for voltage rating upgrades, manufacturer alternatives, or mechanical variations while maintaining core electrical specifications and mechanical compatibility within the through-hole snap-in mounting category.

Substiute Parts

LGU2Z331MELZ

NichiconIn Stock: 1270LGU2Z331MELZ Datasheet

Current PartRFQ

LGW2D331MELZ25

NichiconIn Stock: 273874LGW2D331MELZ25 Datasheet

UpgradeRFQ

LGU2Z331MELY

NichiconIn Stock: 1176LGU2Z331MELY Datasheet

SimilarRFQ

381LR331M200H012

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

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution relationships for the LGU2Z331MELZ are established based on the following criteria:

Upgrade Substitutes maintain identical capacitance (330 µF) and tolerance (±20%), with voltage rating increased to 200 V. These parts are electrically compatible in applications where the original 180 V rating is sufficient, as higher voltage-rated capacitors operate safely at lower applied voltages. Upgrade substitutes include LGW2D331MELZ25 (Nichicon) and 381LR331M200H012 (Cornell Dubilier Electronics).

Similar Substitutes share identical electrical specifications (330 µF, 180 V, ±20%, 3000 Hrs @ 105°C) with variations in mechanical dimensions. The LGU2Z331MELY differs in can diameter (0.787" vs 0.866") and height (1.181" vs 0.984"), requiring verification of PCB layout compatibility before substitution.

All substitute parts maintain through-hole radial snap-in mounting, 10.00mm lead spacing, polar configuration, and general-purpose application suitability.

Parameter Comparison

Engineering Selection Recommendations

LGW2D331MELZ25 (Nichicon) serves as a direct upgrade substitute with 200 V voltage rating. This part maintains identical mechanical dimensions (0.866" diameter, 0.984" height) and lead spacing (10.00mm), ensuring PCB compatibility without layout modifications. Both Nichicon LGU and LGW series are Active product status with ROHS3 compliance and REACH unaffected certification. The 200 V rating provides additional voltage margin in applications where the original 180 V specification is adequate.

381LR331M200H012 (Cornell Dubilier Electronics) is an alternative manufacturer upgrade substitute with 200 V rating and identical mechanical footprint to the main part. This part maintains Active product status, ROHS3 compliance, and REACH unaffected status. The 381LR series from Cornell Dubilier offers cross-manufacturer compatibility for applications requiring supply chain diversification.

LGU2Z331MELY (Nichicon) is a similar substitute within the same LGU series and voltage class (180 V). Mechanical dimensions differ: can diameter reduces to 0.787" and height increases to 1.181". This part is suitable only when PCB layout accommodates the smaller diameter and taller profile. Both parts share identical electrical specifications and Active product status.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can LGW2D331MELZ25 replace LGU2Z331MELZ directly on the PCB?

A: Yes. The LGW2D331MELZ25 maintains identical mechanical dimensions (0.866" diameter, 0.984" height) and 10.00mm lead spacing. The 200 V rating is a voltage upgrade suitable for circuits designed for 180 V operation.

Q: What is the difference between LGU2Z331MELZ and LGU2Z331MELY?

A: Both parts share identical electrical specifications (330 µF, 180 V, ±20%, 3000 Hrs @ 105°C). The LGU2Z331MELY has a smaller can diameter (0.787" vs 0.866") and greater height (1.181" vs 0.984"). PCB layout must accommodate these dimensional changes before substitution.

Q: Is 381LR331M200H012 compatible with the original circuit design?

A: Yes, for electrical and mechanical compatibility. The 381LR331M200H012 maintains the same capacitance, tolerance, lifetime rating, and physical footprint as LGU2Z331MELZ, with a voltage upgrade to 200 V. Verify component sourcing and supply chain requirements for cross-manufacturer substitution.

Q: Can I use a 200 V rated capacitor in a circuit designed for 180 V?

A: Yes. Higher voltage-rated capacitors operate safely at lower applied voltages. The 200 V rated parts (LGW2D331MELZ25 and 381LR331M200H012) are suitable for 180 V applications.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All parts listed—LGU2Z331MELZ, LGW2D331MELZ25, LGU2Z331MELY, and 381LR331M200H012—are ROHS3 compliant and REACH unaffected.

Q: What ripple current specifications apply to substitute parts?

A: LGW2D331MELZ25 supports higher ripple current: 1.97 A @ 120 Hz and 2.955 A @ 50 kHz, compared to LGU2Z331MELZ at 1.2 A @ 120 Hz and 1.8 A @ 50 kHz. Ripple current specifications for 381LR331M200H012 were not provided in the component data.